yading@10: /* yading@10: * Copyright (c) 2000, 2001, 2002 Fabrice Bellard yading@10: * yading@10: * This file is part of FFmpeg. yading@10: * yading@10: * FFmpeg is free software; you can redistribute it and/or yading@10: * modify it under the terms of the GNU Lesser General Public yading@10: * License as published by the Free Software Foundation; either yading@10: * version 2.1 of the License, or (at your option) any later version. yading@10: * yading@10: * FFmpeg is distributed in the hope that it will be useful, yading@10: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@10: * Lesser General Public License for more details. yading@10: * yading@10: * You should have received a copy of the GNU Lesser General Public yading@10: * License along with FFmpeg; if not, write to the Free Software yading@10: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@10: */ yading@10: yading@10: /** yading@10: * @file yading@10: * multiple format streaming server based on the FFmpeg libraries yading@10: */ yading@10: yading@10: #include "config.h" yading@10: #if !HAVE_CLOSESOCKET yading@10: #define closesocket close yading@10: #endif yading@10: #include yading@10: #include yading@10: #include yading@10: #include "libavformat/avformat.h" yading@10: // FIXME those are internal headers, ffserver _really_ shouldn't use them yading@10: #include "libavformat/ffm.h" yading@10: #include "libavformat/network.h" yading@10: #include "libavformat/os_support.h" yading@10: #include "libavformat/rtpdec.h" yading@10: #include "libavformat/rtsp.h" yading@10: #include "libavformat/avio_internal.h" yading@10: #include "libavformat/internal.h" yading@10: #include "libavformat/url.h" yading@10: yading@10: #include "libavutil/avassert.h" yading@10: #include "libavutil/avstring.h" yading@10: #include "libavutil/lfg.h" yading@10: #include "libavutil/dict.h" yading@10: #include "libavutil/intreadwrite.h" yading@10: #include "libavutil/mathematics.h" yading@10: #include "libavutil/random_seed.h" yading@10: #include "libavutil/parseutils.h" yading@10: #include "libavutil/opt.h" yading@10: #include "libavutil/time.h" yading@10: yading@10: #include yading@10: #include yading@10: #include yading@10: #include yading@10: #if HAVE_POLL_H yading@10: #include yading@10: #endif yading@10: #include yading@10: #include yading@10: #include yading@10: #include yading@10: #if HAVE_DLFCN_H yading@10: #include yading@10: #endif yading@10: yading@10: #include "cmdutils.h" yading@10: yading@10: const char program_name[] = "ffserver"; yading@10: const int program_birth_year = 2000; yading@10: yading@10: static const OptionDef options[]; yading@10: yading@10: enum HTTPState { yading@10: HTTPSTATE_WAIT_REQUEST, yading@10: HTTPSTATE_SEND_HEADER, yading@10: HTTPSTATE_SEND_DATA_HEADER, yading@10: HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */ yading@10: HTTPSTATE_SEND_DATA_TRAILER, yading@10: HTTPSTATE_RECEIVE_DATA, yading@10: HTTPSTATE_WAIT_FEED, /* wait for data from the feed */ yading@10: HTTPSTATE_READY, yading@10: yading@10: RTSPSTATE_WAIT_REQUEST, yading@10: RTSPSTATE_SEND_REPLY, yading@10: RTSPSTATE_SEND_PACKET, yading@10: }; yading@10: yading@10: static const char *http_state[] = { yading@10: "HTTP_WAIT_REQUEST", yading@10: "HTTP_SEND_HEADER", yading@10: yading@10: "SEND_DATA_HEADER", yading@10: "SEND_DATA", yading@10: "SEND_DATA_TRAILER", yading@10: "RECEIVE_DATA", yading@10: "WAIT_FEED", yading@10: "READY", yading@10: yading@10: "RTSP_WAIT_REQUEST", yading@10: "RTSP_SEND_REPLY", yading@10: "RTSP_SEND_PACKET", yading@10: }; yading@10: yading@10: #define MAX_STREAMS 20 yading@10: yading@10: #define IOBUFFER_INIT_SIZE 8192 yading@10: yading@10: /* timeouts are in ms */ yading@10: #define HTTP_REQUEST_TIMEOUT (15 * 1000) yading@10: #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000) yading@10: yading@10: #define SYNC_TIMEOUT (10 * 1000) yading@10: yading@10: typedef struct RTSPActionServerSetup { yading@10: uint32_t ipaddr; yading@10: char transport_option[512]; yading@10: } RTSPActionServerSetup; yading@10: yading@10: typedef struct { yading@10: int64_t count1, count2; yading@10: int64_t time1, time2; yading@10: } DataRateData; yading@10: yading@10: /* context associated with one connection */ yading@10: typedef struct HTTPContext { yading@10: enum HTTPState state; yading@10: int fd; /* socket file descriptor */ yading@10: struct sockaddr_in from_addr; /* origin */ yading@10: struct pollfd *poll_entry; /* used when polling */ yading@10: int64_t timeout; yading@10: uint8_t *buffer_ptr, *buffer_end; yading@10: int http_error; yading@10: int post; yading@10: int chunked_encoding; yading@10: int chunk_size; /* 0 if it needs to be read */ yading@10: struct HTTPContext *next; yading@10: int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */ yading@10: int64_t data_count; yading@10: /* feed input */ yading@10: int feed_fd; yading@10: /* input format handling */ yading@10: AVFormatContext *fmt_in; yading@10: int64_t start_time; /* In milliseconds - this wraps fairly often */ yading@10: int64_t first_pts; /* initial pts value */ yading@10: int64_t cur_pts; /* current pts value from the stream in us */ yading@10: int64_t cur_frame_duration; /* duration of the current frame in us */ yading@10: int cur_frame_bytes; /* output frame size, needed to compute yading@10: the time at which we send each yading@10: packet */ yading@10: int pts_stream_index; /* stream we choose as clock reference */ yading@10: int64_t cur_clock; /* current clock reference value in us */ yading@10: /* output format handling */ yading@10: struct FFStream *stream; yading@10: /* -1 is invalid stream */ yading@10: int feed_streams[MAX_STREAMS]; /* index of streams in the feed */ yading@10: int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */ yading@10: int switch_pending; yading@10: AVFormatContext fmt_ctx; /* instance of FFStream for one user */ yading@10: int last_packet_sent; /* true if last data packet was sent */ yading@10: int suppress_log; yading@10: DataRateData datarate; yading@10: int wmp_client_id; yading@10: char protocol[16]; yading@10: char method[16]; yading@10: char url[128]; yading@10: int buffer_size; yading@10: uint8_t *buffer; yading@10: int is_packetized; /* if true, the stream is packetized */ yading@10: int packet_stream_index; /* current stream for output in state machine */ yading@10: yading@10: /* RTSP state specific */ yading@10: uint8_t *pb_buffer; /* XXX: use that in all the code */ yading@10: AVIOContext *pb; yading@10: int seq; /* RTSP sequence number */ yading@10: yading@10: /* RTP state specific */ yading@10: enum RTSPLowerTransport rtp_protocol; yading@10: char session_id[32]; /* session id */ yading@10: AVFormatContext *rtp_ctx[MAX_STREAMS]; yading@10: yading@10: /* RTP/UDP specific */ yading@10: URLContext *rtp_handles[MAX_STREAMS]; yading@10: yading@10: /* RTP/TCP specific */ yading@10: struct HTTPContext *rtsp_c; yading@10: uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end; yading@10: } HTTPContext; yading@10: yading@10: /* each generated stream is described here */ yading@10: enum StreamType { yading@10: STREAM_TYPE_LIVE, yading@10: STREAM_TYPE_STATUS, yading@10: STREAM_TYPE_REDIRECT, yading@10: }; yading@10: yading@10: enum IPAddressAction { yading@10: IP_ALLOW = 1, yading@10: IP_DENY, yading@10: }; yading@10: yading@10: typedef struct IPAddressACL { yading@10: struct IPAddressACL *next; yading@10: enum IPAddressAction action; yading@10: /* These are in host order */ yading@10: struct in_addr first; yading@10: struct in_addr last; yading@10: } IPAddressACL; yading@10: yading@10: /* description of each stream of the ffserver.conf file */ yading@10: typedef struct FFStream { yading@10: enum StreamType stream_type; yading@10: char filename[1024]; /* stream filename */ yading@10: struct FFStream *feed; /* feed we are using (can be null if yading@10: coming from file) */ yading@10: AVDictionary *in_opts; /* input parameters */ yading@10: AVInputFormat *ifmt; /* if non NULL, force input format */ yading@10: AVOutputFormat *fmt; yading@10: IPAddressACL *acl; yading@10: char dynamic_acl[1024]; yading@10: int nb_streams; yading@10: int prebuffer; /* Number of millseconds early to start */ yading@10: int64_t max_time; /* Number of milliseconds to run */ yading@10: int send_on_key; yading@10: AVStream *streams[MAX_STREAMS]; yading@10: int feed_streams[MAX_STREAMS]; /* index of streams in the feed */ yading@10: char feed_filename[1024]; /* file name of the feed storage, or yading@10: input file name for a stream */ yading@10: char author[512]; yading@10: char title[512]; yading@10: char copyright[512]; yading@10: char comment[512]; yading@10: pid_t pid; /* Of ffmpeg process */ yading@10: time_t pid_start; /* Of ffmpeg process */ yading@10: char **child_argv; yading@10: struct FFStream *next; yading@10: unsigned bandwidth; /* bandwidth, in kbits/s */ yading@10: /* RTSP options */ yading@10: char *rtsp_option; yading@10: /* multicast specific */ yading@10: int is_multicast; yading@10: struct in_addr multicast_ip; yading@10: int multicast_port; /* first port used for multicast */ yading@10: int multicast_ttl; yading@10: int loop; /* if true, send the stream in loops (only meaningful if file) */ yading@10: yading@10: /* feed specific */ yading@10: int feed_opened; /* true if someone is writing to the feed */ yading@10: int is_feed; /* true if it is a feed */ yading@10: int readonly; /* True if writing is prohibited to the file */ yading@10: int truncate; /* True if feeder connection truncate the feed file */ yading@10: int conns_served; yading@10: int64_t bytes_served; yading@10: int64_t feed_max_size; /* maximum storage size, zero means unlimited */ yading@10: int64_t feed_write_index; /* current write position in feed (it wraps around) */ yading@10: int64_t feed_size; /* current size of feed */ yading@10: struct FFStream *next_feed; yading@10: } FFStream; yading@10: yading@10: typedef struct FeedData { yading@10: long long data_count; yading@10: float avg_frame_size; /* frame size averaged over last frames with exponential mean */ yading@10: } FeedData; yading@10: yading@10: static struct sockaddr_in my_http_addr; yading@10: static struct sockaddr_in my_rtsp_addr; yading@10: yading@10: static char logfilename[1024]; yading@10: static HTTPContext *first_http_ctx; yading@10: static FFStream *first_feed; /* contains only feeds */ yading@10: static FFStream *first_stream; /* contains all streams, including feeds */ yading@10: yading@10: static void new_connection(int server_fd, int is_rtsp); yading@10: static void close_connection(HTTPContext *c); yading@10: yading@10: /* HTTP handling */ yading@10: static int handle_connection(HTTPContext *c); yading@10: static int http_parse_request(HTTPContext *c); yading@10: static int http_send_data(HTTPContext *c); yading@10: static void compute_status(HTTPContext *c); yading@10: static int open_input_stream(HTTPContext *c, const char *info); yading@10: static int http_start_receive_data(HTTPContext *c); yading@10: static int http_receive_data(HTTPContext *c); yading@10: yading@10: /* RTSP handling */ yading@10: static int rtsp_parse_request(HTTPContext *c); yading@10: static void rtsp_cmd_describe(HTTPContext *c, const char *url); yading@10: static void rtsp_cmd_options(HTTPContext *c, const char *url); yading@10: static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h); yading@10: static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h); yading@10: static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h); yading@10: static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h); yading@10: yading@10: /* SDP handling */ yading@10: static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer, yading@10: struct in_addr my_ip); yading@10: yading@10: /* RTP handling */ yading@10: static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr, yading@10: FFStream *stream, const char *session_id, yading@10: enum RTSPLowerTransport rtp_protocol); yading@10: static int rtp_new_av_stream(HTTPContext *c, yading@10: int stream_index, struct sockaddr_in *dest_addr, yading@10: HTTPContext *rtsp_c); yading@10: yading@10: static const char *my_program_name; yading@10: yading@10: static const char *config_filename; yading@10: yading@10: static int ffserver_debug; yading@10: static int no_launch; yading@10: static int need_to_start_children; yading@10: yading@10: /* maximum number of simultaneous HTTP connections */ yading@10: static unsigned int nb_max_http_connections = 2000; yading@10: static unsigned int nb_max_connections = 5; yading@10: static unsigned int nb_connections; yading@10: yading@10: static uint64_t max_bandwidth = 1000; yading@10: static uint64_t current_bandwidth; yading@10: yading@10: static int64_t cur_time; // Making this global saves on passing it around everywhere yading@10: yading@10: static AVLFG random_state; yading@10: yading@10: static FILE *logfile = NULL; yading@10: yading@10: static int64_t ffm_read_write_index(int fd) yading@10: { yading@10: uint8_t buf[8]; yading@10: yading@10: if (lseek(fd, 8, SEEK_SET) < 0) yading@10: return AVERROR(EIO); yading@10: if (read(fd, buf, 8) != 8) yading@10: return AVERROR(EIO); yading@10: return AV_RB64(buf); yading@10: } yading@10: yading@10: static int ffm_write_write_index(int fd, int64_t pos) yading@10: { yading@10: uint8_t buf[8]; yading@10: int i; yading@10: yading@10: for(i=0;i<8;i++) yading@10: buf[i] = (pos >> (56 - i * 8)) & 0xff; yading@10: if (lseek(fd, 8, SEEK_SET) < 0) yading@10: return AVERROR(EIO); yading@10: if (write(fd, buf, 8) != 8) yading@10: return AVERROR(EIO); yading@10: return 8; yading@10: } yading@10: yading@10: static void ffm_set_write_index(AVFormatContext *s, int64_t pos, yading@10: int64_t file_size) yading@10: { yading@10: FFMContext *ffm = s->priv_data; yading@10: ffm->write_index = pos; yading@10: ffm->file_size = file_size; yading@10: } yading@10: yading@10: /* FIXME: make ffserver work with IPv6 */ yading@10: /* resolve host with also IP address parsing */ yading@10: static int resolve_host(struct in_addr *sin_addr, const char *hostname) yading@10: { yading@10: yading@10: if (!ff_inet_aton(hostname, sin_addr)) { yading@10: #if HAVE_GETADDRINFO yading@10: struct addrinfo *ai, *cur; yading@10: struct addrinfo hints = { 0 }; yading@10: hints.ai_family = AF_INET; yading@10: if (getaddrinfo(hostname, NULL, &hints, &ai)) yading@10: return -1; yading@10: /* getaddrinfo returns a linked list of addrinfo structs. yading@10: * Even if we set ai_family = AF_INET above, make sure yading@10: * that the returned one actually is of the correct type. */ yading@10: for (cur = ai; cur; cur = cur->ai_next) { yading@10: if (cur->ai_family == AF_INET) { yading@10: *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr; yading@10: freeaddrinfo(ai); yading@10: return 0; yading@10: } yading@10: } yading@10: freeaddrinfo(ai); yading@10: return -1; yading@10: #else yading@10: struct hostent *hp; yading@10: hp = gethostbyname(hostname); yading@10: if (!hp) yading@10: return -1; yading@10: memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr)); yading@10: #endif yading@10: } yading@10: return 0; yading@10: } yading@10: yading@10: static char *ctime1(char *buf2, int buf_size) yading@10: { yading@10: time_t ti; yading@10: char *p; yading@10: yading@10: ti = time(NULL); yading@10: p = ctime(&ti); yading@10: av_strlcpy(buf2, p, buf_size); yading@10: p = buf2 + strlen(p) - 1; yading@10: if (*p == '\n') yading@10: *p = '\0'; yading@10: return buf2; yading@10: } yading@10: yading@10: static void http_vlog(const char *fmt, va_list vargs) yading@10: { yading@10: static int print_prefix = 1; yading@10: if (logfile) { yading@10: if (print_prefix) { yading@10: char buf[32]; yading@10: ctime1(buf, sizeof(buf)); yading@10: fprintf(logfile, "%s ", buf); yading@10: } yading@10: print_prefix = strstr(fmt, "\n") != NULL; yading@10: vfprintf(logfile, fmt, vargs); yading@10: fflush(logfile); yading@10: } yading@10: } yading@10: yading@10: #ifdef __GNUC__ yading@10: __attribute__ ((format (printf, 1, 2))) yading@10: #endif yading@10: static void http_log(const char *fmt, ...) yading@10: { yading@10: va_list vargs; yading@10: va_start(vargs, fmt); yading@10: http_vlog(fmt, vargs); yading@10: va_end(vargs); yading@10: } yading@10: yading@10: static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs) yading@10: { yading@10: static int print_prefix = 1; yading@10: AVClass *avc = ptr ? *(AVClass**)ptr : NULL; yading@10: if (level > av_log_get_level()) yading@10: return; yading@10: if (print_prefix && avc) yading@10: http_log("[%s @ %p]", avc->item_name(ptr), ptr); yading@10: print_prefix = strstr(fmt, "\n") != NULL; yading@10: http_vlog(fmt, vargs); yading@10: } yading@10: yading@10: static void log_connection(HTTPContext *c) yading@10: { yading@10: if (c->suppress_log) yading@10: return; yading@10: yading@10: http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n", yading@10: inet_ntoa(c->from_addr.sin_addr), c->method, c->url, yading@10: c->protocol, (c->http_error ? c->http_error : 200), c->data_count); yading@10: } yading@10: yading@10: static void update_datarate(DataRateData *drd, int64_t count) yading@10: { yading@10: if (!drd->time1 && !drd->count1) { yading@10: drd->time1 = drd->time2 = cur_time; yading@10: drd->count1 = drd->count2 = count; yading@10: } else if (cur_time - drd->time2 > 5000) { yading@10: drd->time1 = drd->time2; yading@10: drd->count1 = drd->count2; yading@10: drd->time2 = cur_time; yading@10: drd->count2 = count; yading@10: } yading@10: } yading@10: yading@10: /* In bytes per second */ yading@10: static int compute_datarate(DataRateData *drd, int64_t count) yading@10: { yading@10: if (cur_time == drd->time1) yading@10: return 0; yading@10: yading@10: return ((count - drd->count1) * 1000) / (cur_time - drd->time1); yading@10: } yading@10: yading@10: yading@10: static void start_children(FFStream *feed) yading@10: { yading@10: if (no_launch) yading@10: return; yading@10: yading@10: for (; feed; feed = feed->next) { yading@10: if (feed->child_argv && !feed->pid) { yading@10: feed->pid_start = time(0); yading@10: yading@10: feed->pid = fork(); yading@10: yading@10: if (feed->pid < 0) { yading@10: http_log("Unable to create children\n"); yading@10: exit(1); yading@10: } yading@10: if (!feed->pid) { yading@10: /* In child */ yading@10: char pathname[1024]; yading@10: char *slash; yading@10: int i; yading@10: yading@10: av_strlcpy(pathname, my_program_name, sizeof(pathname)); yading@10: yading@10: slash = strrchr(pathname, '/'); yading@10: if (!slash) yading@10: slash = pathname; yading@10: else yading@10: slash++; yading@10: strcpy(slash, "ffmpeg"); yading@10: yading@10: http_log("Launch command line: "); yading@10: http_log("%s ", pathname); yading@10: for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++) yading@10: http_log("%s ", feed->child_argv[i]); yading@10: http_log("\n"); yading@10: yading@10: for (i = 3; i < 256; i++) yading@10: close(i); yading@10: yading@10: if (!ffserver_debug) { yading@10: if (!freopen("/dev/null", "r", stdin)) yading@10: http_log("failed to redirect STDIN to /dev/null\n;"); yading@10: if (!freopen("/dev/null", "w", stdout)) yading@10: http_log("failed to redirect STDOUT to /dev/null\n;"); yading@10: if (!freopen("/dev/null", "w", stderr)) yading@10: http_log("failed to redirect STDERR to /dev/null\n;"); yading@10: } yading@10: yading@10: signal(SIGPIPE, SIG_DFL); yading@10: yading@10: execvp(pathname, feed->child_argv); yading@10: yading@10: _exit(1); yading@10: } yading@10: } yading@10: } yading@10: } yading@10: yading@10: /* open a listening socket */ yading@10: static int socket_open_listen(struct sockaddr_in *my_addr) yading@10: { yading@10: int server_fd, tmp; yading@10: yading@10: server_fd = socket(AF_INET,SOCK_STREAM,0); yading@10: if (server_fd < 0) { yading@10: perror ("socket"); yading@10: return -1; yading@10: } yading@10: yading@10: tmp = 1; yading@10: setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp)); yading@10: yading@10: my_addr->sin_family = AF_INET; yading@10: if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) { yading@10: char bindmsg[32]; yading@10: snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port)); yading@10: perror (bindmsg); yading@10: closesocket(server_fd); yading@10: return -1; yading@10: } yading@10: yading@10: if (listen (server_fd, 5) < 0) { yading@10: perror ("listen"); yading@10: closesocket(server_fd); yading@10: return -1; yading@10: } yading@10: ff_socket_nonblock(server_fd, 1); yading@10: yading@10: return server_fd; yading@10: } yading@10: yading@10: /* start all multicast streams */ yading@10: static void start_multicast(void) yading@10: { yading@10: FFStream *stream; yading@10: char session_id[32]; yading@10: HTTPContext *rtp_c; yading@10: struct sockaddr_in dest_addr = {0}; yading@10: int default_port, stream_index; yading@10: yading@10: default_port = 6000; yading@10: for(stream = first_stream; stream != NULL; stream = stream->next) { yading@10: if (stream->is_multicast) { yading@10: unsigned random0 = av_lfg_get(&random_state); yading@10: unsigned random1 = av_lfg_get(&random_state); yading@10: /* open the RTP connection */ yading@10: snprintf(session_id, sizeof(session_id), "%08x%08x", yading@10: random0, random1); yading@10: yading@10: /* choose a port if none given */ yading@10: if (stream->multicast_port == 0) { yading@10: stream->multicast_port = default_port; yading@10: default_port += 100; yading@10: } yading@10: yading@10: dest_addr.sin_family = AF_INET; yading@10: dest_addr.sin_addr = stream->multicast_ip; yading@10: dest_addr.sin_port = htons(stream->multicast_port); yading@10: yading@10: rtp_c = rtp_new_connection(&dest_addr, stream, session_id, yading@10: RTSP_LOWER_TRANSPORT_UDP_MULTICAST); yading@10: if (!rtp_c) yading@10: continue; yading@10: yading@10: if (open_input_stream(rtp_c, "") < 0) { yading@10: http_log("Could not open input stream for stream '%s'\n", yading@10: stream->filename); yading@10: continue; yading@10: } yading@10: yading@10: /* open each RTP stream */ yading@10: for(stream_index = 0; stream_index < stream->nb_streams; yading@10: stream_index++) { yading@10: dest_addr.sin_port = htons(stream->multicast_port + yading@10: 2 * stream_index); yading@10: if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) { yading@10: http_log("Could not open output stream '%s/streamid=%d'\n", yading@10: stream->filename, stream_index); yading@10: exit(1); yading@10: } yading@10: } yading@10: yading@10: /* change state to send data */ yading@10: rtp_c->state = HTTPSTATE_SEND_DATA; yading@10: } yading@10: } yading@10: } yading@10: yading@10: /* main loop of the http server */ yading@10: static int http_server(void) yading@10: { yading@10: int server_fd = 0, rtsp_server_fd = 0; yading@10: int ret, delay, delay1; yading@10: struct pollfd *poll_table, *poll_entry; yading@10: HTTPContext *c, *c_next; yading@10: yading@10: if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) { yading@10: http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections); yading@10: return -1; yading@10: } yading@10: yading@10: if (my_http_addr.sin_port) { yading@10: server_fd = socket_open_listen(&my_http_addr); yading@10: if (server_fd < 0) yading@10: return -1; yading@10: } yading@10: yading@10: if (my_rtsp_addr.sin_port) { yading@10: rtsp_server_fd = socket_open_listen(&my_rtsp_addr); yading@10: if (rtsp_server_fd < 0) yading@10: return -1; yading@10: } yading@10: yading@10: if (!rtsp_server_fd && !server_fd) { yading@10: http_log("HTTP and RTSP disabled.\n"); yading@10: return -1; yading@10: } yading@10: yading@10: http_log("FFserver started.\n"); yading@10: yading@10: start_children(first_feed); yading@10: yading@10: start_multicast(); yading@10: yading@10: for(;;) { yading@10: poll_entry = poll_table; yading@10: if (server_fd) { yading@10: poll_entry->fd = server_fd; yading@10: poll_entry->events = POLLIN; yading@10: poll_entry++; yading@10: } yading@10: if (rtsp_server_fd) { yading@10: poll_entry->fd = rtsp_server_fd; yading@10: poll_entry->events = POLLIN; yading@10: poll_entry++; yading@10: } yading@10: yading@10: /* wait for events on each HTTP handle */ yading@10: c = first_http_ctx; yading@10: delay = 1000; yading@10: while (c != NULL) { yading@10: int fd; yading@10: fd = c->fd; yading@10: switch(c->state) { yading@10: case HTTPSTATE_SEND_HEADER: yading@10: case RTSPSTATE_SEND_REPLY: yading@10: case RTSPSTATE_SEND_PACKET: yading@10: c->poll_entry = poll_entry; yading@10: poll_entry->fd = fd; yading@10: poll_entry->events = POLLOUT; yading@10: poll_entry++; yading@10: break; yading@10: case HTTPSTATE_SEND_DATA_HEADER: yading@10: case HTTPSTATE_SEND_DATA: yading@10: case HTTPSTATE_SEND_DATA_TRAILER: yading@10: if (!c->is_packetized) { yading@10: /* for TCP, we output as much as we can (may need to put a limit) */ yading@10: c->poll_entry = poll_entry; yading@10: poll_entry->fd = fd; yading@10: poll_entry->events = POLLOUT; yading@10: poll_entry++; yading@10: } else { yading@10: /* when ffserver is doing the timing, we work by yading@10: looking at which packet need to be sent every yading@10: 10 ms */ yading@10: delay1 = 10; /* one tick wait XXX: 10 ms assumed */ yading@10: if (delay1 < delay) yading@10: delay = delay1; yading@10: } yading@10: break; yading@10: case HTTPSTATE_WAIT_REQUEST: yading@10: case HTTPSTATE_RECEIVE_DATA: yading@10: case HTTPSTATE_WAIT_FEED: yading@10: case RTSPSTATE_WAIT_REQUEST: yading@10: /* need to catch errors */ yading@10: c->poll_entry = poll_entry; yading@10: poll_entry->fd = fd; yading@10: poll_entry->events = POLLIN;/* Maybe this will work */ yading@10: poll_entry++; yading@10: break; yading@10: default: yading@10: c->poll_entry = NULL; yading@10: break; yading@10: } yading@10: c = c->next; yading@10: } yading@10: yading@10: /* wait for an event on one connection. We poll at least every yading@10: second to handle timeouts */ yading@10: do { yading@10: ret = poll(poll_table, poll_entry - poll_table, delay); yading@10: if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) && yading@10: ff_neterrno() != AVERROR(EINTR)) yading@10: return -1; yading@10: } while (ret < 0); yading@10: yading@10: cur_time = av_gettime() / 1000; yading@10: yading@10: if (need_to_start_children) { yading@10: need_to_start_children = 0; yading@10: start_children(first_feed); yading@10: } yading@10: yading@10: /* now handle the events */ yading@10: for(c = first_http_ctx; c != NULL; c = c_next) { yading@10: c_next = c->next; yading@10: if (handle_connection(c) < 0) { yading@10: /* close and free the connection */ yading@10: log_connection(c); yading@10: close_connection(c); yading@10: } yading@10: } yading@10: yading@10: poll_entry = poll_table; yading@10: if (server_fd) { yading@10: /* new HTTP connection request ? */ yading@10: if (poll_entry->revents & POLLIN) yading@10: new_connection(server_fd, 0); yading@10: poll_entry++; yading@10: } yading@10: if (rtsp_server_fd) { yading@10: /* new RTSP connection request ? */ yading@10: if (poll_entry->revents & POLLIN) yading@10: new_connection(rtsp_server_fd, 1); yading@10: } yading@10: } yading@10: } yading@10: yading@10: /* start waiting for a new HTTP/RTSP request */ yading@10: static void start_wait_request(HTTPContext *c, int is_rtsp) yading@10: { yading@10: c->buffer_ptr = c->buffer; yading@10: c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */ yading@10: yading@10: if (is_rtsp) { yading@10: c->timeout = cur_time + RTSP_REQUEST_TIMEOUT; yading@10: c->state = RTSPSTATE_WAIT_REQUEST; yading@10: } else { yading@10: c->timeout = cur_time + HTTP_REQUEST_TIMEOUT; yading@10: c->state = HTTPSTATE_WAIT_REQUEST; yading@10: } yading@10: } yading@10: yading@10: static void http_send_too_busy_reply(int fd) yading@10: { yading@10: char buffer[400]; yading@10: int len = snprintf(buffer, sizeof(buffer), yading@10: "HTTP/1.0 503 Server too busy\r\n" yading@10: "Content-type: text/html\r\n" yading@10: "\r\n" yading@10: "Too busy\r\n" yading@10: "

The server is too busy to serve your request at this time.

\r\n" yading@10: "

The number of current connections is %u, and this exceeds the limit of %u.

\r\n" yading@10: "\r\n", yading@10: nb_connections, nb_max_connections); yading@10: av_assert0(len < sizeof(buffer)); yading@10: send(fd, buffer, len, 0); yading@10: } yading@10: yading@10: yading@10: static void new_connection(int server_fd, int is_rtsp) yading@10: { yading@10: struct sockaddr_in from_addr; yading@10: socklen_t len; yading@10: int fd; yading@10: HTTPContext *c = NULL; yading@10: yading@10: len = sizeof(from_addr); yading@10: fd = accept(server_fd, (struct sockaddr *)&from_addr, yading@10: &len); yading@10: if (fd < 0) { yading@10: http_log("error during accept %s\n", strerror(errno)); yading@10: return; yading@10: } yading@10: ff_socket_nonblock(fd, 1); yading@10: yading@10: if (nb_connections >= nb_max_connections) { yading@10: http_send_too_busy_reply(fd); yading@10: goto fail; yading@10: } yading@10: yading@10: /* add a new connection */ yading@10: c = av_mallocz(sizeof(HTTPContext)); yading@10: if (!c) yading@10: goto fail; yading@10: yading@10: c->fd = fd; yading@10: c->poll_entry = NULL; yading@10: c->from_addr = from_addr; yading@10: c->buffer_size = IOBUFFER_INIT_SIZE; yading@10: c->buffer = av_malloc(c->buffer_size); yading@10: if (!c->buffer) yading@10: goto fail; yading@10: yading@10: c->next = first_http_ctx; yading@10: first_http_ctx = c; yading@10: nb_connections++; yading@10: yading@10: start_wait_request(c, is_rtsp); yading@10: yading@10: return; yading@10: yading@10: fail: yading@10: if (c) { yading@10: av_free(c->buffer); yading@10: av_free(c); yading@10: } yading@10: closesocket(fd); yading@10: } yading@10: yading@10: static void close_connection(HTTPContext *c) yading@10: { yading@10: HTTPContext **cp, *c1; yading@10: int i, nb_streams; yading@10: AVFormatContext *ctx; yading@10: URLContext *h; yading@10: AVStream *st; yading@10: yading@10: /* remove connection from list */ yading@10: cp = &first_http_ctx; yading@10: while ((*cp) != NULL) { yading@10: c1 = *cp; yading@10: if (c1 == c) yading@10: *cp = c->next; yading@10: else yading@10: cp = &c1->next; yading@10: } yading@10: yading@10: /* remove references, if any (XXX: do it faster) */ yading@10: for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) { yading@10: if (c1->rtsp_c == c) yading@10: c1->rtsp_c = NULL; yading@10: } yading@10: yading@10: /* remove connection associated resources */ yading@10: if (c->fd >= 0) yading@10: closesocket(c->fd); yading@10: if (c->fmt_in) { yading@10: /* close each frame parser */ yading@10: for(i=0;ifmt_in->nb_streams;i++) { yading@10: st = c->fmt_in->streams[i]; yading@10: if (st->codec->codec) yading@10: avcodec_close(st->codec); yading@10: } yading@10: avformat_close_input(&c->fmt_in); yading@10: } yading@10: yading@10: /* free RTP output streams if any */ yading@10: nb_streams = 0; yading@10: if (c->stream) yading@10: nb_streams = c->stream->nb_streams; yading@10: yading@10: for(i=0;irtp_ctx[i]; yading@10: if (ctx) { yading@10: av_write_trailer(ctx); yading@10: av_dict_free(&ctx->metadata); yading@10: av_free(ctx->streams[0]); yading@10: av_free(ctx); yading@10: } yading@10: h = c->rtp_handles[i]; yading@10: if (h) yading@10: ffurl_close(h); yading@10: } yading@10: yading@10: ctx = &c->fmt_ctx; yading@10: yading@10: if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) { yading@10: if (ctx->oformat) { yading@10: /* prepare header */ yading@10: if (avio_open_dyn_buf(&ctx->pb) >= 0) { yading@10: av_write_trailer(ctx); yading@10: av_freep(&c->pb_buffer); yading@10: avio_close_dyn_buf(ctx->pb, &c->pb_buffer); yading@10: } yading@10: } yading@10: } yading@10: yading@10: for(i=0; inb_streams; i++) yading@10: av_free(ctx->streams[i]); yading@10: av_freep(&ctx->streams); yading@10: av_freep(&ctx->priv_data); yading@10: yading@10: if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE) yading@10: current_bandwidth -= c->stream->bandwidth; yading@10: yading@10: /* signal that there is no feed if we are the feeder socket */ yading@10: if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) { yading@10: c->stream->feed_opened = 0; yading@10: close(c->feed_fd); yading@10: } yading@10: yading@10: av_freep(&c->pb_buffer); yading@10: av_freep(&c->packet_buffer); yading@10: av_free(c->buffer); yading@10: av_free(c); yading@10: nb_connections--; yading@10: } yading@10: yading@10: static int handle_connection(HTTPContext *c) yading@10: { yading@10: int len, ret; yading@10: yading@10: switch(c->state) { yading@10: case HTTPSTATE_WAIT_REQUEST: yading@10: case RTSPSTATE_WAIT_REQUEST: yading@10: /* timeout ? */ yading@10: if ((c->timeout - cur_time) < 0) yading@10: return -1; yading@10: if (c->poll_entry->revents & (POLLERR | POLLHUP)) yading@10: return -1; yading@10: yading@10: /* no need to read if no events */ yading@10: if (!(c->poll_entry->revents & POLLIN)) yading@10: return 0; yading@10: /* read the data */ yading@10: read_loop: yading@10: len = recv(c->fd, c->buffer_ptr, 1, 0); yading@10: if (len < 0) { yading@10: if (ff_neterrno() != AVERROR(EAGAIN) && yading@10: ff_neterrno() != AVERROR(EINTR)) yading@10: return -1; yading@10: } else if (len == 0) { yading@10: return -1; yading@10: } else { yading@10: /* search for end of request. */ yading@10: uint8_t *ptr; yading@10: c->buffer_ptr += len; yading@10: ptr = c->buffer_ptr; yading@10: if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) || yading@10: (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) { yading@10: /* request found : parse it and reply */ yading@10: if (c->state == HTTPSTATE_WAIT_REQUEST) { yading@10: ret = http_parse_request(c); yading@10: } else { yading@10: ret = rtsp_parse_request(c); yading@10: } yading@10: if (ret < 0) yading@10: return -1; yading@10: } else if (ptr >= c->buffer_end) { yading@10: /* request too long: cannot do anything */ yading@10: return -1; yading@10: } else goto read_loop; yading@10: } yading@10: break; yading@10: yading@10: case HTTPSTATE_SEND_HEADER: yading@10: if (c->poll_entry->revents & (POLLERR | POLLHUP)) yading@10: return -1; yading@10: yading@10: /* no need to write if no events */ yading@10: if (!(c->poll_entry->revents & POLLOUT)) yading@10: return 0; yading@10: len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); yading@10: if (len < 0) { yading@10: if (ff_neterrno() != AVERROR(EAGAIN) && yading@10: ff_neterrno() != AVERROR(EINTR)) { yading@10: /* error : close connection */ yading@10: av_freep(&c->pb_buffer); yading@10: return -1; yading@10: } yading@10: } else { yading@10: c->buffer_ptr += len; yading@10: if (c->stream) yading@10: c->stream->bytes_served += len; yading@10: c->data_count += len; yading@10: if (c->buffer_ptr >= c->buffer_end) { yading@10: av_freep(&c->pb_buffer); yading@10: /* if error, exit */ yading@10: if (c->http_error) yading@10: return -1; yading@10: /* all the buffer was sent : synchronize to the incoming stream */ yading@10: c->state = HTTPSTATE_SEND_DATA_HEADER; yading@10: c->buffer_ptr = c->buffer_end = c->buffer; yading@10: } yading@10: } yading@10: break; yading@10: yading@10: case HTTPSTATE_SEND_DATA: yading@10: case HTTPSTATE_SEND_DATA_HEADER: yading@10: case HTTPSTATE_SEND_DATA_TRAILER: yading@10: /* for packetized output, we consider we can always write (the yading@10: input streams sets the speed). It may be better to verify yading@10: that we do not rely too much on the kernel queues */ yading@10: if (!c->is_packetized) { yading@10: if (c->poll_entry->revents & (POLLERR | POLLHUP)) yading@10: return -1; yading@10: yading@10: /* no need to read if no events */ yading@10: if (!(c->poll_entry->revents & POLLOUT)) yading@10: return 0; yading@10: } yading@10: if (http_send_data(c) < 0) yading@10: return -1; yading@10: /* close connection if trailer sent */ yading@10: if (c->state == HTTPSTATE_SEND_DATA_TRAILER) yading@10: return -1; yading@10: break; yading@10: case HTTPSTATE_RECEIVE_DATA: yading@10: /* no need to read if no events */ yading@10: if (c->poll_entry->revents & (POLLERR | POLLHUP)) yading@10: return -1; yading@10: if (!(c->poll_entry->revents & POLLIN)) yading@10: return 0; yading@10: if (http_receive_data(c) < 0) yading@10: return -1; yading@10: break; yading@10: case HTTPSTATE_WAIT_FEED: yading@10: /* no need to read if no events */ yading@10: if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP)) yading@10: return -1; yading@10: yading@10: /* nothing to do, we'll be waken up by incoming feed packets */ yading@10: break; yading@10: yading@10: case RTSPSTATE_SEND_REPLY: yading@10: if (c->poll_entry->revents & (POLLERR | POLLHUP)) { yading@10: av_freep(&c->pb_buffer); yading@10: return -1; yading@10: } yading@10: /* no need to write if no events */ yading@10: if (!(c->poll_entry->revents & POLLOUT)) yading@10: return 0; yading@10: len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); yading@10: if (len < 0) { yading@10: if (ff_neterrno() != AVERROR(EAGAIN) && yading@10: ff_neterrno() != AVERROR(EINTR)) { yading@10: /* error : close connection */ yading@10: av_freep(&c->pb_buffer); yading@10: return -1; yading@10: } yading@10: } else { yading@10: c->buffer_ptr += len; yading@10: c->data_count += len; yading@10: if (c->buffer_ptr >= c->buffer_end) { yading@10: /* all the buffer was sent : wait for a new request */ yading@10: av_freep(&c->pb_buffer); yading@10: start_wait_request(c, 1); yading@10: } yading@10: } yading@10: break; yading@10: case RTSPSTATE_SEND_PACKET: yading@10: if (c->poll_entry->revents & (POLLERR | POLLHUP)) { yading@10: av_freep(&c->packet_buffer); yading@10: return -1; yading@10: } yading@10: /* no need to write if no events */ yading@10: if (!(c->poll_entry->revents & POLLOUT)) yading@10: return 0; yading@10: len = send(c->fd, c->packet_buffer_ptr, yading@10: c->packet_buffer_end - c->packet_buffer_ptr, 0); yading@10: if (len < 0) { yading@10: if (ff_neterrno() != AVERROR(EAGAIN) && yading@10: ff_neterrno() != AVERROR(EINTR)) { yading@10: /* error : close connection */ yading@10: av_freep(&c->packet_buffer); yading@10: return -1; yading@10: } yading@10: } else { yading@10: c->packet_buffer_ptr += len; yading@10: if (c->packet_buffer_ptr >= c->packet_buffer_end) { yading@10: /* all the buffer was sent : wait for a new request */ yading@10: av_freep(&c->packet_buffer); yading@10: c->state = RTSPSTATE_WAIT_REQUEST; yading@10: } yading@10: } yading@10: break; yading@10: case HTTPSTATE_READY: yading@10: /* nothing to do */ yading@10: break; yading@10: default: yading@10: return -1; yading@10: } yading@10: return 0; yading@10: } yading@10: yading@10: static int extract_rates(char *rates, int ratelen, const char *request) yading@10: { yading@10: const char *p; yading@10: yading@10: for (p = request; *p && *p != '\r' && *p != '\n'; ) { yading@10: if (av_strncasecmp(p, "Pragma:", 7) == 0) { yading@10: const char *q = p + 7; yading@10: yading@10: while (*q && *q != '\n' && av_isspace(*q)) yading@10: q++; yading@10: yading@10: if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) { yading@10: int stream_no; yading@10: int rate_no; yading@10: yading@10: q += 20; yading@10: yading@10: memset(rates, 0xff, ratelen); yading@10: yading@10: while (1) { yading@10: while (*q && *q != '\n' && *q != ':') yading@10: q++; yading@10: yading@10: if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2) yading@10: break; yading@10: yading@10: stream_no--; yading@10: if (stream_no < ratelen && stream_no >= 0) yading@10: rates[stream_no] = rate_no; yading@10: yading@10: while (*q && *q != '\n' && !av_isspace(*q)) yading@10: q++; yading@10: } yading@10: yading@10: return 1; yading@10: } yading@10: } yading@10: p = strchr(p, '\n'); yading@10: if (!p) yading@10: break; yading@10: yading@10: p++; yading@10: } yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate) yading@10: { yading@10: int i; yading@10: int best_bitrate = 100000000; yading@10: int best = -1; yading@10: yading@10: for (i = 0; i < feed->nb_streams; i++) { yading@10: AVCodecContext *feed_codec = feed->streams[i]->codec; yading@10: yading@10: if (feed_codec->codec_id != codec->codec_id || yading@10: feed_codec->sample_rate != codec->sample_rate || yading@10: feed_codec->width != codec->width || yading@10: feed_codec->height != codec->height) yading@10: continue; yading@10: yading@10: /* Potential stream */ yading@10: yading@10: /* We want the fastest stream less than bit_rate, or the slowest yading@10: * faster than bit_rate yading@10: */ yading@10: yading@10: if (feed_codec->bit_rate <= bit_rate) { yading@10: if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) { yading@10: best_bitrate = feed_codec->bit_rate; yading@10: best = i; yading@10: } yading@10: } else { yading@10: if (feed_codec->bit_rate < best_bitrate) { yading@10: best_bitrate = feed_codec->bit_rate; yading@10: best = i; yading@10: } yading@10: } yading@10: } yading@10: yading@10: return best; yading@10: } yading@10: yading@10: static int modify_current_stream(HTTPContext *c, char *rates) yading@10: { yading@10: int i; yading@10: FFStream *req = c->stream; yading@10: int action_required = 0; yading@10: yading@10: /* Not much we can do for a feed */ yading@10: if (!req->feed) yading@10: return 0; yading@10: yading@10: for (i = 0; i < req->nb_streams; i++) { yading@10: AVCodecContext *codec = req->streams[i]->codec; yading@10: yading@10: switch(rates[i]) { yading@10: case 0: yading@10: c->switch_feed_streams[i] = req->feed_streams[i]; yading@10: break; yading@10: case 1: yading@10: c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2); yading@10: break; yading@10: case 2: yading@10: /* Wants off or slow */ yading@10: c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4); yading@10: #ifdef WANTS_OFF yading@10: /* This doesn't work well when it turns off the only stream! */ yading@10: c->switch_feed_streams[i] = -2; yading@10: c->feed_streams[i] = -2; yading@10: #endif yading@10: break; yading@10: } yading@10: yading@10: if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i]) yading@10: action_required = 1; yading@10: } yading@10: yading@10: return action_required; yading@10: } yading@10: yading@10: /* XXX: factorize in utils.c ? */ yading@10: /* XXX: take care with different space meaning */ yading@10: static void skip_spaces(const char **pp) yading@10: { yading@10: const char *p; yading@10: p = *pp; yading@10: while (*p == ' ' || *p == '\t') yading@10: p++; yading@10: *pp = p; yading@10: } yading@10: yading@10: static void get_word(char *buf, int buf_size, const char **pp) yading@10: { yading@10: const char *p; yading@10: char *q; yading@10: yading@10: p = *pp; yading@10: skip_spaces(&p); yading@10: q = buf; yading@10: while (!av_isspace(*p) && *p != '\0') { yading@10: if ((q - buf) < buf_size - 1) yading@10: *q++ = *p; yading@10: p++; yading@10: } yading@10: if (buf_size > 0) yading@10: *q = '\0'; yading@10: *pp = p; yading@10: } yading@10: yading@10: static void get_arg(char *buf, int buf_size, const char **pp) yading@10: { yading@10: const char *p; yading@10: char *q; yading@10: int quote; yading@10: yading@10: p = *pp; yading@10: while (av_isspace(*p)) p++; yading@10: q = buf; yading@10: quote = 0; yading@10: if (*p == '\"' || *p == '\'') yading@10: quote = *p++; yading@10: for(;;) { yading@10: if (quote) { yading@10: if (*p == quote) yading@10: break; yading@10: } else { yading@10: if (av_isspace(*p)) yading@10: break; yading@10: } yading@10: if (*p == '\0') yading@10: break; yading@10: if ((q - buf) < buf_size - 1) yading@10: *q++ = *p; yading@10: p++; yading@10: } yading@10: *q = '\0'; yading@10: if (quote && *p == quote) yading@10: p++; yading@10: *pp = p; yading@10: } yading@10: yading@10: static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl, yading@10: const char *p, const char *filename, int line_num) yading@10: { yading@10: char arg[1024]; yading@10: IPAddressACL acl; yading@10: int errors = 0; yading@10: yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (av_strcasecmp(arg, "allow") == 0) yading@10: acl.action = IP_ALLOW; yading@10: else if (av_strcasecmp(arg, "deny") == 0) yading@10: acl.action = IP_DENY; yading@10: else { yading@10: fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n", yading@10: filename, line_num, arg); yading@10: errors++; yading@10: } yading@10: yading@10: get_arg(arg, sizeof(arg), &p); yading@10: yading@10: if (resolve_host(&acl.first, arg) != 0) { yading@10: fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n", yading@10: filename, line_num, arg); yading@10: errors++; yading@10: } else yading@10: acl.last = acl.first; yading@10: yading@10: get_arg(arg, sizeof(arg), &p); yading@10: yading@10: if (arg[0]) { yading@10: if (resolve_host(&acl.last, arg) != 0) { yading@10: fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n", yading@10: filename, line_num, arg); yading@10: errors++; yading@10: } yading@10: } yading@10: yading@10: if (!errors) { yading@10: IPAddressACL *nacl = av_mallocz(sizeof(*nacl)); yading@10: IPAddressACL **naclp = 0; yading@10: yading@10: acl.next = 0; yading@10: *nacl = acl; yading@10: yading@10: if (stream) yading@10: naclp = &stream->acl; yading@10: else if (feed) yading@10: naclp = &feed->acl; yading@10: else if (ext_acl) yading@10: naclp = &ext_acl; yading@10: else { yading@10: fprintf(stderr, "%s:%d: ACL found not in or \n", yading@10: filename, line_num); yading@10: errors++; yading@10: } yading@10: yading@10: if (naclp) { yading@10: while (*naclp) yading@10: naclp = &(*naclp)->next; yading@10: yading@10: *naclp = nacl; yading@10: } yading@10: } yading@10: } yading@10: yading@10: yading@10: static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c) yading@10: { yading@10: FILE* f; yading@10: char line[1024]; yading@10: char cmd[1024]; yading@10: IPAddressACL *acl = NULL; yading@10: int line_num = 0; yading@10: const char *p; yading@10: yading@10: f = fopen(stream->dynamic_acl, "r"); yading@10: if (!f) { yading@10: perror(stream->dynamic_acl); yading@10: return NULL; yading@10: } yading@10: yading@10: acl = av_mallocz(sizeof(IPAddressACL)); yading@10: yading@10: /* Build ACL */ yading@10: for(;;) { yading@10: if (fgets(line, sizeof(line), f) == NULL) yading@10: break; yading@10: line_num++; yading@10: p = line; yading@10: while (av_isspace(*p)) yading@10: p++; yading@10: if (*p == '\0' || *p == '#') yading@10: continue; yading@10: get_arg(cmd, sizeof(cmd), &p); yading@10: yading@10: if (!av_strcasecmp(cmd, "ACL")) yading@10: parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num); yading@10: } yading@10: fclose(f); yading@10: return acl; yading@10: } yading@10: yading@10: yading@10: static void free_acl_list(IPAddressACL *in_acl) yading@10: { yading@10: IPAddressACL *pacl,*pacl2; yading@10: yading@10: pacl = in_acl; yading@10: while(pacl) { yading@10: pacl2 = pacl; yading@10: pacl = pacl->next; yading@10: av_freep(pacl2); yading@10: } yading@10: } yading@10: yading@10: static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c) yading@10: { yading@10: enum IPAddressAction last_action = IP_DENY; yading@10: IPAddressACL *acl; yading@10: struct in_addr *src = &c->from_addr.sin_addr; yading@10: unsigned long src_addr = src->s_addr; yading@10: yading@10: for (acl = in_acl; acl; acl = acl->next) { yading@10: if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr) yading@10: return (acl->action == IP_ALLOW) ? 1 : 0; yading@10: last_action = acl->action; yading@10: } yading@10: yading@10: /* Nothing matched, so return not the last action */ yading@10: return (last_action == IP_DENY) ? 1 : 0; yading@10: } yading@10: yading@10: static int validate_acl(FFStream *stream, HTTPContext *c) yading@10: { yading@10: int ret = 0; yading@10: IPAddressACL *acl; yading@10: yading@10: yading@10: /* if stream->acl is null validate_acl_list will return 1 */ yading@10: ret = validate_acl_list(stream->acl, c); yading@10: yading@10: if (stream->dynamic_acl[0]) { yading@10: acl = parse_dynamic_acl(stream, c); yading@10: yading@10: ret = validate_acl_list(acl, c); yading@10: yading@10: free_acl_list(acl); yading@10: } yading@10: yading@10: return ret; yading@10: } yading@10: yading@10: /* compute the real filename of a file by matching it without its yading@10: extensions to all the stream filenames */ yading@10: static void compute_real_filename(char *filename, int max_size) yading@10: { yading@10: char file1[1024]; yading@10: char file2[1024]; yading@10: char *p; yading@10: FFStream *stream; yading@10: yading@10: /* compute filename by matching without the file extensions */ yading@10: av_strlcpy(file1, filename, sizeof(file1)); yading@10: p = strrchr(file1, '.'); yading@10: if (p) yading@10: *p = '\0'; yading@10: for(stream = first_stream; stream != NULL; stream = stream->next) { yading@10: av_strlcpy(file2, stream->filename, sizeof(file2)); yading@10: p = strrchr(file2, '.'); yading@10: if (p) yading@10: *p = '\0'; yading@10: if (!strcmp(file1, file2)) { yading@10: av_strlcpy(filename, stream->filename, max_size); yading@10: break; yading@10: } yading@10: } yading@10: } yading@10: yading@10: enum RedirType { yading@10: REDIR_NONE, yading@10: REDIR_ASX, yading@10: REDIR_RAM, yading@10: REDIR_ASF, yading@10: REDIR_RTSP, yading@10: REDIR_SDP, yading@10: }; yading@10: yading@10: /* parse http request and prepare header */ yading@10: static int http_parse_request(HTTPContext *c) yading@10: { yading@10: const char *p; yading@10: char *p1; yading@10: enum RedirType redir_type; yading@10: char cmd[32]; yading@10: char info[1024], filename[1024]; yading@10: char url[1024], *q; yading@10: char protocol[32]; yading@10: char msg[1024]; yading@10: const char *mime_type; yading@10: FFStream *stream; yading@10: int i; yading@10: char ratebuf[32]; yading@10: const char *useragent = 0; yading@10: yading@10: p = c->buffer; yading@10: get_word(cmd, sizeof(cmd), &p); yading@10: av_strlcpy(c->method, cmd, sizeof(c->method)); yading@10: yading@10: if (!strcmp(cmd, "GET")) yading@10: c->post = 0; yading@10: else if (!strcmp(cmd, "POST")) yading@10: c->post = 1; yading@10: else yading@10: return -1; yading@10: yading@10: get_word(url, sizeof(url), &p); yading@10: av_strlcpy(c->url, url, sizeof(c->url)); yading@10: yading@10: get_word(protocol, sizeof(protocol), (const char **)&p); yading@10: if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1")) yading@10: return -1; yading@10: yading@10: av_strlcpy(c->protocol, protocol, sizeof(c->protocol)); yading@10: yading@10: if (ffserver_debug) yading@10: http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url); yading@10: yading@10: /* find the filename and the optional info string in the request */ yading@10: p1 = strchr(url, '?'); yading@10: if (p1) { yading@10: av_strlcpy(info, p1, sizeof(info)); yading@10: *p1 = '\0'; yading@10: } else yading@10: info[0] = '\0'; yading@10: yading@10: av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1); yading@10: yading@10: for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { yading@10: if (av_strncasecmp(p, "User-Agent:", 11) == 0) { yading@10: useragent = p + 11; yading@10: if (*useragent && *useragent != '\n' && av_isspace(*useragent)) yading@10: useragent++; yading@10: break; yading@10: } yading@10: p = strchr(p, '\n'); yading@10: if (!p) yading@10: break; yading@10: yading@10: p++; yading@10: } yading@10: yading@10: redir_type = REDIR_NONE; yading@10: if (av_match_ext(filename, "asx")) { yading@10: redir_type = REDIR_ASX; yading@10: filename[strlen(filename)-1] = 'f'; yading@10: } else if (av_match_ext(filename, "asf") && yading@10: (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) { yading@10: /* if this isn't WMP or lookalike, return the redirector file */ yading@10: redir_type = REDIR_ASF; yading@10: } else if (av_match_ext(filename, "rpm,ram")) { yading@10: redir_type = REDIR_RAM; yading@10: strcpy(filename + strlen(filename)-2, "m"); yading@10: } else if (av_match_ext(filename, "rtsp")) { yading@10: redir_type = REDIR_RTSP; yading@10: compute_real_filename(filename, sizeof(filename) - 1); yading@10: } else if (av_match_ext(filename, "sdp")) { yading@10: redir_type = REDIR_SDP; yading@10: compute_real_filename(filename, sizeof(filename) - 1); yading@10: } yading@10: yading@10: // "redirect" / request to index.html yading@10: if (!strlen(filename)) yading@10: av_strlcpy(filename, "index.html", sizeof(filename) - 1); yading@10: yading@10: stream = first_stream; yading@10: while (stream != NULL) { yading@10: if (!strcmp(stream->filename, filename) && validate_acl(stream, c)) yading@10: break; yading@10: stream = stream->next; yading@10: } yading@10: if (stream == NULL) { yading@10: snprintf(msg, sizeof(msg), "File '%s' not found", url); yading@10: http_log("File '%s' not found\n", url); yading@10: goto send_error; yading@10: } yading@10: yading@10: c->stream = stream; yading@10: memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams)); yading@10: memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams)); yading@10: yading@10: if (stream->stream_type == STREAM_TYPE_REDIRECT) { yading@10: c->http_error = 301; yading@10: q = c->buffer; yading@10: snprintf(q, c->buffer_size, yading@10: "HTTP/1.0 301 Moved\r\n" yading@10: "Location: %s\r\n" yading@10: "Content-type: text/html\r\n" yading@10: "\r\n" yading@10: "Moved\r\n" yading@10: "You should be redirected.\r\n" yading@10: "\r\n", stream->feed_filename, stream->feed_filename); yading@10: q += strlen(q); yading@10: /* prepare output buffer */ yading@10: c->buffer_ptr = c->buffer; yading@10: c->buffer_end = q; yading@10: c->state = HTTPSTATE_SEND_HEADER; yading@10: return 0; yading@10: } yading@10: yading@10: /* If this is WMP, get the rate information */ yading@10: if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) { yading@10: if (modify_current_stream(c, ratebuf)) { yading@10: for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) { yading@10: if (c->switch_feed_streams[i] >= 0) yading@10: c->switch_feed_streams[i] = -1; yading@10: } yading@10: } yading@10: } yading@10: yading@10: if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE) yading@10: current_bandwidth += stream->bandwidth; yading@10: yading@10: /* If already streaming this feed, do not let start another feeder. */ yading@10: if (stream->feed_opened) { yading@10: snprintf(msg, sizeof(msg), "This feed is already being received."); yading@10: http_log("Feed '%s' already being received\n", stream->feed_filename); yading@10: goto send_error; yading@10: } yading@10: yading@10: if (c->post == 0 && max_bandwidth < current_bandwidth) { yading@10: c->http_error = 503; yading@10: q = c->buffer; yading@10: snprintf(q, c->buffer_size, yading@10: "HTTP/1.0 503 Server too busy\r\n" yading@10: "Content-type: text/html\r\n" yading@10: "\r\n" yading@10: "Too busy\r\n" yading@10: "

The server is too busy to serve your request at this time.

\r\n" yading@10: "

The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, " yading@10: "and this exceeds the limit of %"PRIu64"kbit/sec.

\r\n" yading@10: "\r\n", current_bandwidth, max_bandwidth); yading@10: q += strlen(q); yading@10: /* prepare output buffer */ yading@10: c->buffer_ptr = c->buffer; yading@10: c->buffer_end = q; yading@10: c->state = HTTPSTATE_SEND_HEADER; yading@10: return 0; yading@10: } yading@10: yading@10: if (redir_type != REDIR_NONE) { yading@10: const char *hostinfo = 0; yading@10: yading@10: for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { yading@10: if (av_strncasecmp(p, "Host:", 5) == 0) { yading@10: hostinfo = p + 5; yading@10: break; yading@10: } yading@10: p = strchr(p, '\n'); yading@10: if (!p) yading@10: break; yading@10: yading@10: p++; yading@10: } yading@10: yading@10: if (hostinfo) { yading@10: char *eoh; yading@10: char hostbuf[260]; yading@10: yading@10: while (av_isspace(*hostinfo)) yading@10: hostinfo++; yading@10: yading@10: eoh = strchr(hostinfo, '\n'); yading@10: if (eoh) { yading@10: if (eoh[-1] == '\r') yading@10: eoh--; yading@10: yading@10: if (eoh - hostinfo < sizeof(hostbuf) - 1) { yading@10: memcpy(hostbuf, hostinfo, eoh - hostinfo); yading@10: hostbuf[eoh - hostinfo] = 0; yading@10: yading@10: c->http_error = 200; yading@10: q = c->buffer; yading@10: switch(redir_type) { yading@10: case REDIR_ASX: yading@10: snprintf(q, c->buffer_size, yading@10: "HTTP/1.0 200 ASX Follows\r\n" yading@10: "Content-type: video/x-ms-asf\r\n" yading@10: "\r\n" yading@10: "\r\n" yading@10: //"\r\n" yading@10: "\r\n" yading@10: "\r\n", hostbuf, filename, info); yading@10: q += strlen(q); yading@10: break; yading@10: case REDIR_RAM: yading@10: snprintf(q, c->buffer_size, yading@10: "HTTP/1.0 200 RAM Follows\r\n" yading@10: "Content-type: audio/x-pn-realaudio\r\n" yading@10: "\r\n" yading@10: "# Autogenerated by ffserver\r\n" yading@10: "http://%s/%s%s\r\n", hostbuf, filename, info); yading@10: q += strlen(q); yading@10: break; yading@10: case REDIR_ASF: yading@10: snprintf(q, c->buffer_size, yading@10: "HTTP/1.0 200 ASF Redirect follows\r\n" yading@10: "Content-type: video/x-ms-asf\r\n" yading@10: "\r\n" yading@10: "[Reference]\r\n" yading@10: "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info); yading@10: q += strlen(q); yading@10: break; yading@10: case REDIR_RTSP: yading@10: { yading@10: char hostname[256], *p; yading@10: /* extract only hostname */ yading@10: av_strlcpy(hostname, hostbuf, sizeof(hostname)); yading@10: p = strrchr(hostname, ':'); yading@10: if (p) yading@10: *p = '\0'; yading@10: snprintf(q, c->buffer_size, yading@10: "HTTP/1.0 200 RTSP Redirect follows\r\n" yading@10: /* XXX: incorrect mime type ? */ yading@10: "Content-type: application/x-rtsp\r\n" yading@10: "\r\n" yading@10: "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename); yading@10: q += strlen(q); yading@10: } yading@10: break; yading@10: case REDIR_SDP: yading@10: { yading@10: uint8_t *sdp_data; yading@10: int sdp_data_size; yading@10: socklen_t len; yading@10: struct sockaddr_in my_addr; yading@10: yading@10: snprintf(q, c->buffer_size, yading@10: "HTTP/1.0 200 OK\r\n" yading@10: "Content-type: application/sdp\r\n" yading@10: "\r\n"); yading@10: q += strlen(q); yading@10: yading@10: len = sizeof(my_addr); yading@10: getsockname(c->fd, (struct sockaddr *)&my_addr, &len); yading@10: yading@10: /* XXX: should use a dynamic buffer */ yading@10: sdp_data_size = prepare_sdp_description(stream, yading@10: &sdp_data, yading@10: my_addr.sin_addr); yading@10: if (sdp_data_size > 0) { yading@10: memcpy(q, sdp_data, sdp_data_size); yading@10: q += sdp_data_size; yading@10: *q = '\0'; yading@10: av_free(sdp_data); yading@10: } yading@10: } yading@10: break; yading@10: default: yading@10: abort(); yading@10: break; yading@10: } yading@10: yading@10: /* prepare output buffer */ yading@10: c->buffer_ptr = c->buffer; yading@10: c->buffer_end = q; yading@10: c->state = HTTPSTATE_SEND_HEADER; yading@10: return 0; yading@10: } yading@10: } yading@10: } yading@10: yading@10: snprintf(msg, sizeof(msg), "ASX/RAM file not handled"); yading@10: goto send_error; yading@10: } yading@10: yading@10: stream->conns_served++; yading@10: yading@10: /* XXX: add there authenticate and IP match */ yading@10: yading@10: if (c->post) { yading@10: /* if post, it means a feed is being sent */ yading@10: if (!stream->is_feed) { yading@10: /* However it might be a status report from WMP! Let us log the yading@10: * data as it might come in handy one day. */ yading@10: const char *logline = 0; yading@10: int client_id = 0; yading@10: yading@10: for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { yading@10: if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) { yading@10: logline = p; yading@10: break; yading@10: } yading@10: if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0) yading@10: client_id = strtol(p + 18, 0, 10); yading@10: p = strchr(p, '\n'); yading@10: if (!p) yading@10: break; yading@10: yading@10: p++; yading@10: } yading@10: yading@10: if (logline) { yading@10: char *eol = strchr(logline, '\n'); yading@10: yading@10: logline += 17; yading@10: yading@10: if (eol) { yading@10: if (eol[-1] == '\r') yading@10: eol--; yading@10: http_log("%.*s\n", (int) (eol - logline), logline); yading@10: c->suppress_log = 1; yading@10: } yading@10: } yading@10: yading@10: #ifdef DEBUG yading@10: http_log("\nGot request:\n%s\n", c->buffer); yading@10: #endif yading@10: yading@10: if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) { yading@10: HTTPContext *wmpc; yading@10: yading@10: /* Now we have to find the client_id */ yading@10: for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) { yading@10: if (wmpc->wmp_client_id == client_id) yading@10: break; yading@10: } yading@10: yading@10: if (wmpc && modify_current_stream(wmpc, ratebuf)) yading@10: wmpc->switch_pending = 1; yading@10: } yading@10: yading@10: snprintf(msg, sizeof(msg), "POST command not handled"); yading@10: c->stream = 0; yading@10: goto send_error; yading@10: } yading@10: if (http_start_receive_data(c) < 0) { yading@10: snprintf(msg, sizeof(msg), "could not open feed"); yading@10: goto send_error; yading@10: } yading@10: c->http_error = 0; yading@10: c->state = HTTPSTATE_RECEIVE_DATA; yading@10: return 0; yading@10: } yading@10: yading@10: #ifdef DEBUG yading@10: if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0) yading@10: http_log("\nGot request:\n%s\n", c->buffer); yading@10: #endif yading@10: yading@10: if (c->stream->stream_type == STREAM_TYPE_STATUS) yading@10: goto send_status; yading@10: yading@10: /* open input stream */ yading@10: if (open_input_stream(c, info) < 0) { yading@10: snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url); yading@10: goto send_error; yading@10: } yading@10: yading@10: /* prepare http header */ yading@10: c->buffer[0] = 0; yading@10: av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n"); yading@10: mime_type = c->stream->fmt->mime_type; yading@10: if (!mime_type) yading@10: mime_type = "application/x-octet-stream"; yading@10: av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n"); yading@10: yading@10: /* for asf, we need extra headers */ yading@10: if (!strcmp(c->stream->fmt->name,"asf_stream")) { yading@10: /* Need to allocate a client id */ yading@10: yading@10: c->wmp_client_id = av_lfg_get(&random_state); yading@10: yading@10: av_strlcatf(c->buffer, c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id); yading@10: } yading@10: av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type); yading@10: av_strlcatf(c->buffer, c->buffer_size, "\r\n"); yading@10: q = c->buffer + strlen(c->buffer); yading@10: yading@10: /* prepare output buffer */ yading@10: c->http_error = 0; yading@10: c->buffer_ptr = c->buffer; yading@10: c->buffer_end = q; yading@10: c->state = HTTPSTATE_SEND_HEADER; yading@10: return 0; yading@10: send_error: yading@10: c->http_error = 404; yading@10: q = c->buffer; yading@10: snprintf(q, c->buffer_size, yading@10: "HTTP/1.0 404 Not Found\r\n" yading@10: "Content-type: text/html\r\n" yading@10: "\r\n" yading@10: "\n" yading@10: "404 Not Found\n" yading@10: "%s\n" yading@10: "\n", msg); yading@10: q += strlen(q); yading@10: /* prepare output buffer */ yading@10: c->buffer_ptr = c->buffer; yading@10: c->buffer_end = q; yading@10: c->state = HTTPSTATE_SEND_HEADER; yading@10: return 0; yading@10: send_status: yading@10: compute_status(c); yading@10: c->http_error = 200; /* horrible : we use this value to avoid yading@10: going to the send data state */ yading@10: c->state = HTTPSTATE_SEND_HEADER; yading@10: return 0; yading@10: } yading@10: yading@10: static void fmt_bytecount(AVIOContext *pb, int64_t count) yading@10: { yading@10: static const char suffix[] = " kMGTP"; yading@10: const char *s; yading@10: yading@10: for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++); yading@10: yading@10: avio_printf(pb, "%"PRId64"%c", count, *s); yading@10: } yading@10: yading@10: static void compute_status(HTTPContext *c) yading@10: { yading@10: HTTPContext *c1; yading@10: FFStream *stream; yading@10: char *p; yading@10: time_t ti; yading@10: int i, len; yading@10: AVIOContext *pb; yading@10: yading@10: if (avio_open_dyn_buf(&pb) < 0) { yading@10: /* XXX: return an error ? */ yading@10: c->buffer_ptr = c->buffer; yading@10: c->buffer_end = c->buffer; yading@10: return; yading@10: } yading@10: yading@10: avio_printf(pb, "HTTP/1.0 200 OK\r\n"); yading@10: avio_printf(pb, "Content-type: %s\r\n", "text/html"); yading@10: avio_printf(pb, "Pragma: no-cache\r\n"); yading@10: avio_printf(pb, "\r\n"); yading@10: yading@10: avio_printf(pb, "%s Status\n", program_name); yading@10: if (c->stream->feed_filename[0]) yading@10: avio_printf(pb, "\n", c->stream->feed_filename); yading@10: avio_printf(pb, "\n"); yading@10: avio_printf(pb, "

%s Status

\n", program_name); yading@10: /* format status */ yading@10: avio_printf(pb, "

Available Streams

\n"); yading@10: avio_printf(pb, "\n"); yading@10: avio_printf(pb, "
PathServed
Conns
bytes		FormatBit rate
kbits/s		Video
kbits/s
Codec		Audio
kbits/s
Codec		Feed\n"); yading@10: stream = first_stream; yading@10: while (stream != NULL) { yading@10: char sfilename[1024]; yading@10: char *eosf; yading@10: yading@10: if (stream->feed != stream) { yading@10: av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10); yading@10: eosf = sfilename + strlen(sfilename); yading@10: if (eosf - sfilename >= 4) { yading@10: if (strcmp(eosf - 4, ".asf") == 0) yading@10: strcpy(eosf - 4, ".asx"); yading@10: else if (strcmp(eosf - 3, ".rm") == 0) yading@10: strcpy(eosf - 3, ".ram"); yading@10: else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) { yading@10: /* generate a sample RTSP director if yading@10: unicast. Generate an SDP redirector if yading@10: multicast */ yading@10: eosf = strrchr(sfilename, '.'); yading@10: if (!eosf) yading@10: eosf = sfilename + strlen(sfilename); yading@10: if (stream->is_multicast) yading@10: strcpy(eosf, ".sdp"); yading@10: else yading@10: strcpy(eosf, ".rtsp"); yading@10: } yading@10: } yading@10: yading@10: avio_printf(pb, "
%s ", yading@10: sfilename, stream->filename); yading@10: avio_printf(pb, " %d ", yading@10: stream->conns_served); yading@10: fmt_bytecount(pb, stream->bytes_served); yading@10: switch(stream->stream_type) { yading@10: case STREAM_TYPE_LIVE: { yading@10: int audio_bit_rate = 0; yading@10: int video_bit_rate = 0; yading@10: const char *audio_codec_name = ""; yading@10: const char *video_codec_name = ""; yading@10: const char *audio_codec_name_extra = ""; yading@10: const char *video_codec_name_extra = ""; yading@10: yading@10: for(i=0;inb_streams;i++) { yading@10: AVStream *st = stream->streams[i]; yading@10: AVCodec *codec = avcodec_find_encoder(st->codec->codec_id); yading@10: switch(st->codec->codec_type) { yading@10: case AVMEDIA_TYPE_AUDIO: yading@10: audio_bit_rate += st->codec->bit_rate; yading@10: if (codec) { yading@10: if (*audio_codec_name) yading@10: audio_codec_name_extra = "..."; yading@10: audio_codec_name = codec->name; yading@10: } yading@10: break; yading@10: case AVMEDIA_TYPE_VIDEO: yading@10: video_bit_rate += st->codec->bit_rate; yading@10: if (codec) { yading@10: if (*video_codec_name) yading@10: video_codec_name_extra = "..."; yading@10: video_codec_name = codec->name; yading@10: } yading@10: break; yading@10: case AVMEDIA_TYPE_DATA: yading@10: video_bit_rate += st->codec->bit_rate; yading@10: break; yading@10: default: yading@10: abort(); yading@10: } yading@10: } yading@10: avio_printf(pb, " %s %d %d %s %s %d %s %s", yading@10: stream->fmt->name, yading@10: stream->bandwidth, yading@10: video_bit_rate / 1000, video_codec_name, video_codec_name_extra, yading@10: audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra); yading@10: if (stream->feed) yading@10: avio_printf(pb, "%s", stream->feed->filename); yading@10: else yading@10: avio_printf(pb, "%s", stream->feed_filename); yading@10: avio_printf(pb, "\n"); yading@10: } yading@10: break; yading@10: default: yading@10: avio_printf(pb, " - - - - \n"); yading@10: break; yading@10: } yading@10: } yading@10: stream = stream->next; yading@10: } yading@10: avio_printf(pb, "
\n"); yading@10: yading@10: stream = first_stream; yading@10: while (stream != NULL) { yading@10: if (stream->feed == stream) { yading@10: avio_printf(pb, "

Feed %s

", stream->filename); yading@10: if (stream->pid) { yading@10: avio_printf(pb, "Running as pid %d.\n", stream->pid); yading@10: yading@10: #if defined(linux) yading@10: { yading@10: FILE *pid_stat; yading@10: char ps_cmd[64]; yading@10: yading@10: /* This is somewhat linux specific I guess */ yading@10: snprintf(ps_cmd, sizeof(ps_cmd), yading@10: "ps -o \"%%cpu,cputime\" --no-headers %d", yading@10: stream->pid); yading@10: yading@10: pid_stat = popen(ps_cmd, "r"); yading@10: if (pid_stat) { yading@10: char cpuperc[10]; yading@10: char cpuused[64]; yading@10: yading@10: if (fscanf(pid_stat, "%9s %63s", cpuperc, yading@10: cpuused) == 2) { yading@10: avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n", yading@10: cpuperc, cpuused); yading@10: } yading@10: fclose(pid_stat); yading@10: } yading@10: } yading@10: #endif yading@10: yading@10: avio_printf(pb, "

"); yading@10: } yading@10: avio_printf(pb, "
Streamtypekbits/scodecParameters\n"); yading@10: yading@10: for (i = 0; i < stream->nb_streams; i++) { yading@10: AVStream *st = stream->streams[i]; yading@10: AVCodec *codec = avcodec_find_encoder(st->codec->codec_id); yading@10: const char *type = "unknown"; yading@10: char parameters[64]; yading@10: yading@10: parameters[0] = 0; yading@10: yading@10: switch(st->codec->codec_type) { yading@10: case AVMEDIA_TYPE_AUDIO: yading@10: type = "audio"; yading@10: snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate); yading@10: break; yading@10: case AVMEDIA_TYPE_VIDEO: yading@10: type = "video"; yading@10: snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height, yading@10: st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num); yading@10: break; yading@10: default: yading@10: abort(); yading@10: } yading@10: avio_printf(pb, "
%d%s%d%s%s\n", yading@10: i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters); yading@10: } yading@10: avio_printf(pb, "
\n"); yading@10: yading@10: } yading@10: stream = stream->next; yading@10: } yading@10: yading@10: /* connection status */ yading@10: avio_printf(pb, "

Connection Status

\n"); yading@10: yading@10: avio_printf(pb, "Number of connections: %d / %d
\n", yading@10: nb_connections, nb_max_connections); yading@10: yading@10: avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k
\n", yading@10: current_bandwidth, max_bandwidth); yading@10: yading@10: avio_printf(pb, "\n"); yading@10: avio_printf(pb, "
#FileIPProtoStateTarget bits/secActual bits/secBytes transferred\n"); yading@10: c1 = first_http_ctx; yading@10: i = 0; yading@10: while (c1 != NULL) { yading@10: int bitrate; yading@10: int j; yading@10: yading@10: bitrate = 0; yading@10: if (c1->stream) { yading@10: for (j = 0; j < c1->stream->nb_streams; j++) { yading@10: if (!c1->stream->feed) yading@10: bitrate += c1->stream->streams[j]->codec->bit_rate; yading@10: else if (c1->feed_streams[j] >= 0) yading@10: bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate; yading@10: } yading@10: } yading@10: yading@10: i++; yading@10: p = inet_ntoa(c1->from_addr.sin_addr); yading@10: avio_printf(pb, "
%d%s%s%s%s%s", yading@10: i, yading@10: c1->stream ? c1->stream->filename : "", yading@10: c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", yading@10: p, yading@10: c1->protocol, yading@10: http_state[c1->state]); yading@10: fmt_bytecount(pb, bitrate); yading@10: avio_printf(pb, ""); yading@10: fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8); yading@10: avio_printf(pb, ""); yading@10: fmt_bytecount(pb, c1->data_count); yading@10: avio_printf(pb, "\n"); yading@10: c1 = c1->next; yading@10: } yading@10: avio_printf(pb, "
\n"); yading@10: yading@10: /* date */ yading@10: ti = time(NULL); yading@10: p = ctime(&ti); yading@10: avio_printf(pb, "
Generated at %s", p); yading@10: avio_printf(pb, "\n\n"); yading@10: yading@10: len = avio_close_dyn_buf(pb, &c->pb_buffer); yading@10: c->buffer_ptr = c->pb_buffer; yading@10: c->buffer_end = c->pb_buffer + len; yading@10: } yading@10: yading@10: static int open_input_stream(HTTPContext *c, const char *info) yading@10: { yading@10: char buf[128]; yading@10: char input_filename[1024]; yading@10: AVFormatContext *s = NULL; yading@10: int buf_size, i, ret; yading@10: int64_t stream_pos; yading@10: yading@10: /* find file name */ yading@10: if (c->stream->feed) { yading@10: strcpy(input_filename, c->stream->feed->feed_filename); yading@10: buf_size = FFM_PACKET_SIZE; yading@10: /* compute position (absolute time) */ yading@10: if (av_find_info_tag(buf, sizeof(buf), "date", info)) { yading@10: if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) yading@10: return ret; yading@10: } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) { yading@10: int prebuffer = strtol(buf, 0, 10); yading@10: stream_pos = av_gettime() - prebuffer * (int64_t)1000000; yading@10: } else yading@10: stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000; yading@10: } else { yading@10: strcpy(input_filename, c->stream->feed_filename); yading@10: buf_size = 0; yading@10: /* compute position (relative time) */ yading@10: if (av_find_info_tag(buf, sizeof(buf), "date", info)) { yading@10: if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) yading@10: return ret; yading@10: } else yading@10: stream_pos = 0; yading@10: } yading@10: if (input_filename[0] == '\0') yading@10: return -1; yading@10: yading@10: /* open stream */ yading@10: if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) { yading@10: http_log("could not open %s: %d\n", input_filename, ret); yading@10: return -1; yading@10: } yading@10: yading@10: /* set buffer size */ yading@10: if (buf_size > 0) ffio_set_buf_size(s->pb, buf_size); yading@10: yading@10: s->flags |= AVFMT_FLAG_GENPTS; yading@10: c->fmt_in = s; yading@10: if (strcmp(s->iformat->name, "ffm") && avformat_find_stream_info(c->fmt_in, NULL) < 0) { yading@10: http_log("Could not find stream info '%s'\n", input_filename); yading@10: avformat_close_input(&s); yading@10: return -1; yading@10: } yading@10: yading@10: /* choose stream as clock source (we favorize video stream if yading@10: present) for packet sending */ yading@10: c->pts_stream_index = 0; yading@10: for(i=0;istream->nb_streams;i++) { yading@10: if (c->pts_stream_index == 0 && yading@10: c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) { yading@10: c->pts_stream_index = i; yading@10: } yading@10: } yading@10: yading@10: if (c->fmt_in->iformat->read_seek) yading@10: av_seek_frame(c->fmt_in, -1, stream_pos, 0); yading@10: /* set the start time (needed for maxtime and RTP packet timing) */ yading@10: c->start_time = cur_time; yading@10: c->first_pts = AV_NOPTS_VALUE; yading@10: return 0; yading@10: } yading@10: yading@10: /* return the server clock (in us) */ yading@10: static int64_t get_server_clock(HTTPContext *c) yading@10: { yading@10: /* compute current pts value from system time */ yading@10: return (cur_time - c->start_time) * 1000; yading@10: } yading@10: yading@10: /* return the estimated time at which the current packet must be sent yading@10: (in us) */ yading@10: static int64_t get_packet_send_clock(HTTPContext *c) yading@10: { yading@10: int bytes_left, bytes_sent, frame_bytes; yading@10: yading@10: frame_bytes = c->cur_frame_bytes; yading@10: if (frame_bytes <= 0) yading@10: return c->cur_pts; yading@10: else { yading@10: bytes_left = c->buffer_end - c->buffer_ptr; yading@10: bytes_sent = frame_bytes - bytes_left; yading@10: return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes; yading@10: } yading@10: } yading@10: yading@10: yading@10: static int http_prepare_data(HTTPContext *c) yading@10: { yading@10: int i, len, ret; yading@10: AVFormatContext *ctx; yading@10: yading@10: av_freep(&c->pb_buffer); yading@10: switch(c->state) { yading@10: case HTTPSTATE_SEND_DATA_HEADER: yading@10: memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx)); yading@10: av_dict_set(&c->fmt_ctx.metadata, "author" , c->stream->author , 0); yading@10: av_dict_set(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0); yading@10: av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0); yading@10: av_dict_set(&c->fmt_ctx.metadata, "title" , c->stream->title , 0); yading@10: yading@10: c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams); yading@10: yading@10: for(i=0;istream->nb_streams;i++) { yading@10: AVStream *src; yading@10: c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream)); yading@10: /* if file or feed, then just take streams from FFStream struct */ yading@10: if (!c->stream->feed || yading@10: c->stream->feed == c->stream) yading@10: src = c->stream->streams[i]; yading@10: else yading@10: src = c->stream->feed->streams[c->stream->feed_streams[i]]; yading@10: yading@10: *(c->fmt_ctx.streams[i]) = *src; yading@10: c->fmt_ctx.streams[i]->priv_data = 0; yading@10: c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in yading@10: AVStream, not in codec */ yading@10: } yading@10: /* set output format parameters */ yading@10: c->fmt_ctx.oformat = c->stream->fmt; yading@10: c->fmt_ctx.nb_streams = c->stream->nb_streams; yading@10: yading@10: c->got_key_frame = 0; yading@10: yading@10: /* prepare header and save header data in a stream */ yading@10: if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) { yading@10: /* XXX: potential leak */ yading@10: return -1; yading@10: } yading@10: c->fmt_ctx.pb->seekable = 0; yading@10: yading@10: /* yading@10: * HACK to avoid mpeg ps muxer to spit many underflow errors yading@10: * Default value from FFmpeg yading@10: * Try to set it use configuration option yading@10: */ yading@10: c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE); yading@10: yading@10: if (avformat_write_header(&c->fmt_ctx, NULL) < 0) { yading@10: http_log("Error writing output header\n"); yading@10: return -1; yading@10: } yading@10: av_dict_free(&c->fmt_ctx.metadata); yading@10: yading@10: len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer); yading@10: c->buffer_ptr = c->pb_buffer; yading@10: c->buffer_end = c->pb_buffer + len; yading@10: yading@10: c->state = HTTPSTATE_SEND_DATA; yading@10: c->last_packet_sent = 0; yading@10: break; yading@10: case HTTPSTATE_SEND_DATA: yading@10: /* find a new packet */ yading@10: /* read a packet from the input stream */ yading@10: if (c->stream->feed) yading@10: ffm_set_write_index(c->fmt_in, yading@10: c->stream->feed->feed_write_index, yading@10: c->stream->feed->feed_size); yading@10: yading@10: if (c->stream->max_time && yading@10: c->stream->max_time + c->start_time - cur_time < 0) yading@10: /* We have timed out */ yading@10: c->state = HTTPSTATE_SEND_DATA_TRAILER; yading@10: else { yading@10: AVPacket pkt; yading@10: redo: yading@10: ret = av_read_frame(c->fmt_in, &pkt); yading@10: if (ret < 0) { yading@10: if (c->stream->feed) { yading@10: /* if coming from feed, it means we reached the end of the yading@10: ffm file, so must wait for more data */ yading@10: c->state = HTTPSTATE_WAIT_FEED; yading@10: return 1; /* state changed */ yading@10: } else if (ret == AVERROR(EAGAIN)) { yading@10: /* input not ready, come back later */ yading@10: return 0; yading@10: } else { yading@10: if (c->stream->loop) { yading@10: avformat_close_input(&c->fmt_in); yading@10: if (open_input_stream(c, "") < 0) yading@10: goto no_loop; yading@10: goto redo; yading@10: } else { yading@10: no_loop: yading@10: /* must send trailer now because eof or error */ yading@10: c->state = HTTPSTATE_SEND_DATA_TRAILER; yading@10: } yading@10: } yading@10: } else { yading@10: int source_index = pkt.stream_index; yading@10: /* update first pts if needed */ yading@10: if (c->first_pts == AV_NOPTS_VALUE) { yading@10: c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q); yading@10: c->start_time = cur_time; yading@10: } yading@10: /* send it to the appropriate stream */ yading@10: if (c->stream->feed) { yading@10: /* if coming from a feed, select the right stream */ yading@10: if (c->switch_pending) { yading@10: c->switch_pending = 0; yading@10: for(i=0;istream->nb_streams;i++) { yading@10: if (c->switch_feed_streams[i] == pkt.stream_index) yading@10: if (pkt.flags & AV_PKT_FLAG_KEY) yading@10: c->switch_feed_streams[i] = -1; yading@10: if (c->switch_feed_streams[i] >= 0) yading@10: c->switch_pending = 1; yading@10: } yading@10: } yading@10: for(i=0;istream->nb_streams;i++) { yading@10: if (c->stream->feed_streams[i] == pkt.stream_index) { yading@10: AVStream *st = c->fmt_in->streams[source_index]; yading@10: pkt.stream_index = i; yading@10: if (pkt.flags & AV_PKT_FLAG_KEY && yading@10: (st->codec->codec_type == AVMEDIA_TYPE_VIDEO || yading@10: c->stream->nb_streams == 1)) yading@10: c->got_key_frame = 1; yading@10: if (!c->stream->send_on_key || c->got_key_frame) yading@10: goto send_it; yading@10: } yading@10: } yading@10: } else { yading@10: AVCodecContext *codec; yading@10: AVStream *ist, *ost; yading@10: send_it: yading@10: ist = c->fmt_in->streams[source_index]; yading@10: /* specific handling for RTP: we use several yading@10: output stream (one for each RTP yading@10: connection). XXX: need more abstract handling */ yading@10: if (c->is_packetized) { yading@10: /* compute send time and duration */ yading@10: c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q); yading@10: c->cur_pts -= c->first_pts; yading@10: c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q); yading@10: /* find RTP context */ yading@10: c->packet_stream_index = pkt.stream_index; yading@10: ctx = c->rtp_ctx[c->packet_stream_index]; yading@10: if(!ctx) { yading@10: av_free_packet(&pkt); yading@10: break; yading@10: } yading@10: codec = ctx->streams[0]->codec; yading@10: /* only one stream per RTP connection */ yading@10: pkt.stream_index = 0; yading@10: } else { yading@10: ctx = &c->fmt_ctx; yading@10: /* Fudge here */ yading@10: codec = ctx->streams[pkt.stream_index]->codec; yading@10: } yading@10: yading@10: if (c->is_packetized) { yading@10: int max_packet_size; yading@10: if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) yading@10: max_packet_size = RTSP_TCP_MAX_PACKET_SIZE; yading@10: else yading@10: max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size; yading@10: ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size); yading@10: } else { yading@10: ret = avio_open_dyn_buf(&ctx->pb); yading@10: } yading@10: if (ret < 0) { yading@10: /* XXX: potential leak */ yading@10: return -1; yading@10: } yading@10: ost = ctx->streams[pkt.stream_index]; yading@10: yading@10: ctx->pb->seekable = 0; yading@10: if (pkt.dts != AV_NOPTS_VALUE) yading@10: pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base); yading@10: if (pkt.pts != AV_NOPTS_VALUE) yading@10: pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base); yading@10: pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base); yading@10: if (av_write_frame(ctx, &pkt) < 0) { yading@10: http_log("Error writing frame to output\n"); yading@10: c->state = HTTPSTATE_SEND_DATA_TRAILER; yading@10: } yading@10: yading@10: len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer); yading@10: c->cur_frame_bytes = len; yading@10: c->buffer_ptr = c->pb_buffer; yading@10: c->buffer_end = c->pb_buffer + len; yading@10: yading@10: codec->frame_number++; yading@10: if (len == 0) { yading@10: av_free_packet(&pkt); yading@10: goto redo; yading@10: } yading@10: } yading@10: av_free_packet(&pkt); yading@10: } yading@10: } yading@10: break; yading@10: default: yading@10: case HTTPSTATE_SEND_DATA_TRAILER: yading@10: /* last packet test ? */ yading@10: if (c->last_packet_sent || c->is_packetized) yading@10: return -1; yading@10: ctx = &c->fmt_ctx; yading@10: /* prepare header */ yading@10: if (avio_open_dyn_buf(&ctx->pb) < 0) { yading@10: /* XXX: potential leak */ yading@10: return -1; yading@10: } yading@10: c->fmt_ctx.pb->seekable = 0; yading@10: av_write_trailer(ctx); yading@10: len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer); yading@10: c->buffer_ptr = c->pb_buffer; yading@10: c->buffer_end = c->pb_buffer + len; yading@10: yading@10: c->last_packet_sent = 1; yading@10: break; yading@10: } yading@10: return 0; yading@10: } yading@10: yading@10: /* should convert the format at the same time */ yading@10: /* send data starting at c->buffer_ptr to the output connection yading@10: (either UDP or TCP connection) */ yading@10: static int http_send_data(HTTPContext *c) yading@10: { yading@10: int len, ret; yading@10: yading@10: for(;;) { yading@10: if (c->buffer_ptr >= c->buffer_end) { yading@10: ret = http_prepare_data(c); yading@10: if (ret < 0) yading@10: return -1; yading@10: else if (ret != 0) yading@10: /* state change requested */ yading@10: break; yading@10: } else { yading@10: if (c->is_packetized) { yading@10: /* RTP data output */ yading@10: len = c->buffer_end - c->buffer_ptr; yading@10: if (len < 4) { yading@10: /* fail safe - should never happen */ yading@10: fail1: yading@10: c->buffer_ptr = c->buffer_end; yading@10: return 0; yading@10: } yading@10: len = (c->buffer_ptr[0] << 24) | yading@10: (c->buffer_ptr[1] << 16) | yading@10: (c->buffer_ptr[2] << 8) | yading@10: (c->buffer_ptr[3]); yading@10: if (len > (c->buffer_end - c->buffer_ptr)) yading@10: goto fail1; yading@10: if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) { yading@10: /* nothing to send yet: we can wait */ yading@10: return 0; yading@10: } yading@10: yading@10: c->data_count += len; yading@10: update_datarate(&c->datarate, c->data_count); yading@10: if (c->stream) yading@10: c->stream->bytes_served += len; yading@10: yading@10: if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) { yading@10: /* RTP packets are sent inside the RTSP TCP connection */ yading@10: AVIOContext *pb; yading@10: int interleaved_index, size; yading@10: uint8_t header[4]; yading@10: HTTPContext *rtsp_c; yading@10: yading@10: rtsp_c = c->rtsp_c; yading@10: /* if no RTSP connection left, error */ yading@10: if (!rtsp_c) yading@10: return -1; yading@10: /* if already sending something, then wait. */ yading@10: if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST) yading@10: break; yading@10: if (avio_open_dyn_buf(&pb) < 0) yading@10: goto fail1; yading@10: interleaved_index = c->packet_stream_index * 2; yading@10: /* RTCP packets are sent at odd indexes */ yading@10: if (c->buffer_ptr[1] == 200) yading@10: interleaved_index++; yading@10: /* write RTSP TCP header */ yading@10: header[0] = '$'; yading@10: header[1] = interleaved_index; yading@10: header[2] = len >> 8; yading@10: header[3] = len; yading@10: avio_write(pb, header, 4); yading@10: /* write RTP packet data */ yading@10: c->buffer_ptr += 4; yading@10: avio_write(pb, c->buffer_ptr, len); yading@10: size = avio_close_dyn_buf(pb, &c->packet_buffer); yading@10: /* prepare asynchronous TCP sending */ yading@10: rtsp_c->packet_buffer_ptr = c->packet_buffer; yading@10: rtsp_c->packet_buffer_end = c->packet_buffer + size; yading@10: c->buffer_ptr += len; yading@10: yading@10: /* send everything we can NOW */ yading@10: len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr, yading@10: rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0); yading@10: if (len > 0) yading@10: rtsp_c->packet_buffer_ptr += len; yading@10: if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) { yading@10: /* if we could not send all the data, we will yading@10: send it later, so a new state is needed to yading@10: "lock" the RTSP TCP connection */ yading@10: rtsp_c->state = RTSPSTATE_SEND_PACKET; yading@10: break; yading@10: } else yading@10: /* all data has been sent */ yading@10: av_freep(&c->packet_buffer); yading@10: } else { yading@10: /* send RTP packet directly in UDP */ yading@10: c->buffer_ptr += 4; yading@10: ffurl_write(c->rtp_handles[c->packet_stream_index], yading@10: c->buffer_ptr, len); yading@10: c->buffer_ptr += len; yading@10: /* here we continue as we can send several packets per 10 ms slot */ yading@10: } yading@10: } else { yading@10: /* TCP data output */ yading@10: len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); yading@10: if (len < 0) { yading@10: if (ff_neterrno() != AVERROR(EAGAIN) && yading@10: ff_neterrno() != AVERROR(EINTR)) yading@10: /* error : close connection */ yading@10: return -1; yading@10: else yading@10: return 0; yading@10: } else yading@10: c->buffer_ptr += len; yading@10: yading@10: c->data_count += len; yading@10: update_datarate(&c->datarate, c->data_count); yading@10: if (c->stream) yading@10: c->stream->bytes_served += len; yading@10: break; yading@10: } yading@10: } yading@10: } /* for(;;) */ yading@10: return 0; yading@10: } yading@10: yading@10: static int http_start_receive_data(HTTPContext *c) yading@10: { yading@10: int fd; yading@10: yading@10: if (c->stream->feed_opened) yading@10: return -1; yading@10: yading@10: /* Don't permit writing to this one */ yading@10: if (c->stream->readonly) yading@10: return -1; yading@10: yading@10: /* open feed */ yading@10: fd = open(c->stream->feed_filename, O_RDWR); yading@10: if (fd < 0) { yading@10: http_log("Error opening feeder file: %s\n", strerror(errno)); yading@10: return -1; yading@10: } yading@10: c->feed_fd = fd; yading@10: yading@10: if (c->stream->truncate) { yading@10: /* truncate feed file */ yading@10: ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE); yading@10: http_log("Truncating feed file '%s'\n", c->stream->feed_filename); yading@10: if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) { yading@10: http_log("Error truncating feed file: %s\n", strerror(errno)); yading@10: return -1; yading@10: } yading@10: } else { yading@10: if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) { yading@10: http_log("Error reading write index from feed file: %s\n", strerror(errno)); yading@10: return -1; yading@10: } yading@10: } yading@10: yading@10: c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE); yading@10: c->stream->feed_size = lseek(fd, 0, SEEK_END); yading@10: lseek(fd, 0, SEEK_SET); yading@10: yading@10: /* init buffer input */ yading@10: c->buffer_ptr = c->buffer; yading@10: c->buffer_end = c->buffer + FFM_PACKET_SIZE; yading@10: c->stream->feed_opened = 1; yading@10: c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked"); yading@10: return 0; yading@10: } yading@10: yading@10: static int http_receive_data(HTTPContext *c) yading@10: { yading@10: HTTPContext *c1; yading@10: int len, loop_run = 0; yading@10: yading@10: while (c->chunked_encoding && !c->chunk_size && yading@10: c->buffer_end > c->buffer_ptr) { yading@10: /* read chunk header, if present */ yading@10: len = recv(c->fd, c->buffer_ptr, 1, 0); yading@10: yading@10: if (len < 0) { yading@10: if (ff_neterrno() != AVERROR(EAGAIN) && yading@10: ff_neterrno() != AVERROR(EINTR)) yading@10: /* error : close connection */ yading@10: goto fail; yading@10: return 0; yading@10: } else if (len == 0) { yading@10: /* end of connection : close it */ yading@10: goto fail; yading@10: } else if (c->buffer_ptr - c->buffer >= 2 && yading@10: !memcmp(c->buffer_ptr - 1, "\r\n", 2)) { yading@10: c->chunk_size = strtol(c->buffer, 0, 16); yading@10: if (c->chunk_size == 0) // end of stream yading@10: goto fail; yading@10: c->buffer_ptr = c->buffer; yading@10: break; yading@10: } else if (++loop_run > 10) { yading@10: /* no chunk header, abort */ yading@10: goto fail; yading@10: } else { yading@10: c->buffer_ptr++; yading@10: } yading@10: } yading@10: yading@10: if (c->buffer_end > c->buffer_ptr) { yading@10: len = recv(c->fd, c->buffer_ptr, yading@10: FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0); yading@10: if (len < 0) { yading@10: if (ff_neterrno() != AVERROR(EAGAIN) && yading@10: ff_neterrno() != AVERROR(EINTR)) yading@10: /* error : close connection */ yading@10: goto fail; yading@10: } else if (len == 0) yading@10: /* end of connection : close it */ yading@10: goto fail; yading@10: else { yading@10: c->chunk_size -= len; yading@10: c->buffer_ptr += len; yading@10: c->data_count += len; yading@10: update_datarate(&c->datarate, c->data_count); yading@10: } yading@10: } yading@10: yading@10: if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) { yading@10: if (c->buffer[0] != 'f' || yading@10: c->buffer[1] != 'm') { yading@10: http_log("Feed stream has become desynchronized -- disconnecting\n"); yading@10: goto fail; yading@10: } yading@10: } yading@10: yading@10: if (c->buffer_ptr >= c->buffer_end) { yading@10: FFStream *feed = c->stream; yading@10: /* a packet has been received : write it in the store, except yading@10: if header */ yading@10: if (c->data_count > FFM_PACKET_SIZE) { yading@10: /* XXX: use llseek or url_seek */ yading@10: lseek(c->feed_fd, feed->feed_write_index, SEEK_SET); yading@10: if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) { yading@10: http_log("Error writing to feed file: %s\n", strerror(errno)); yading@10: goto fail; yading@10: } yading@10: yading@10: feed->feed_write_index += FFM_PACKET_SIZE; yading@10: /* update file size */ yading@10: if (feed->feed_write_index > c->stream->feed_size) yading@10: feed->feed_size = feed->feed_write_index; yading@10: yading@10: /* handle wrap around if max file size reached */ yading@10: if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size) yading@10: feed->feed_write_index = FFM_PACKET_SIZE; yading@10: yading@10: /* write index */ yading@10: if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) { yading@10: http_log("Error writing index to feed file: %s\n", strerror(errno)); yading@10: goto fail; yading@10: } yading@10: yading@10: /* wake up any waiting connections */ yading@10: for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) { yading@10: if (c1->state == HTTPSTATE_WAIT_FEED && yading@10: c1->stream->feed == c->stream->feed) yading@10: c1->state = HTTPSTATE_SEND_DATA; yading@10: } yading@10: } else { yading@10: /* We have a header in our hands that contains useful data */ yading@10: AVFormatContext *s = avformat_alloc_context(); yading@10: AVIOContext *pb; yading@10: AVInputFormat *fmt_in; yading@10: int i; yading@10: yading@10: if (!s) yading@10: goto fail; yading@10: yading@10: /* use feed output format name to find corresponding input format */ yading@10: fmt_in = av_find_input_format(feed->fmt->name); yading@10: if (!fmt_in) yading@10: goto fail; yading@10: yading@10: pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer, yading@10: 0, NULL, NULL, NULL, NULL); yading@10: pb->seekable = 0; yading@10: yading@10: s->pb = pb; yading@10: if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) { yading@10: av_free(pb); yading@10: goto fail; yading@10: } yading@10: yading@10: /* Now we have the actual streams */ yading@10: if (s->nb_streams != feed->nb_streams) { yading@10: avformat_close_input(&s); yading@10: av_free(pb); yading@10: http_log("Feed '%s' stream number does not match registered feed\n", yading@10: c->stream->feed_filename); yading@10: goto fail; yading@10: } yading@10: yading@10: for (i = 0; i < s->nb_streams; i++) { yading@10: AVStream *fst = feed->streams[i]; yading@10: AVStream *st = s->streams[i]; yading@10: avcodec_copy_context(fst->codec, st->codec); yading@10: } yading@10: yading@10: avformat_close_input(&s); yading@10: av_free(pb); yading@10: } yading@10: c->buffer_ptr = c->buffer; yading@10: } yading@10: yading@10: return 0; yading@10: fail: yading@10: c->stream->feed_opened = 0; yading@10: close(c->feed_fd); yading@10: /* wake up any waiting connections to stop waiting for feed */ yading@10: for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) { yading@10: if (c1->state == HTTPSTATE_WAIT_FEED && yading@10: c1->stream->feed == c->stream->feed) yading@10: c1->state = HTTPSTATE_SEND_DATA_TRAILER; yading@10: } yading@10: return -1; yading@10: } yading@10: yading@10: /********************************************************************/ yading@10: /* RTSP handling */ yading@10: yading@10: static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number) yading@10: { yading@10: const char *str; yading@10: time_t ti; yading@10: struct tm *tm; yading@10: char buf2[32]; yading@10: yading@10: switch(error_number) { yading@10: case RTSP_STATUS_OK: yading@10: str = "OK"; yading@10: break; yading@10: case RTSP_STATUS_METHOD: yading@10: str = "Method Not Allowed"; yading@10: break; yading@10: case RTSP_STATUS_BANDWIDTH: yading@10: str = "Not Enough Bandwidth"; yading@10: break; yading@10: case RTSP_STATUS_SESSION: yading@10: str = "Session Not Found"; yading@10: break; yading@10: case RTSP_STATUS_STATE: yading@10: str = "Method Not Valid in This State"; yading@10: break; yading@10: case RTSP_STATUS_AGGREGATE: yading@10: str = "Aggregate operation not allowed"; yading@10: break; yading@10: case RTSP_STATUS_ONLY_AGGREGATE: yading@10: str = "Only aggregate operation allowed"; yading@10: break; yading@10: case RTSP_STATUS_TRANSPORT: yading@10: str = "Unsupported transport"; yading@10: break; yading@10: case RTSP_STATUS_INTERNAL: yading@10: str = "Internal Server Error"; yading@10: break; yading@10: case RTSP_STATUS_SERVICE: yading@10: str = "Service Unavailable"; yading@10: break; yading@10: case RTSP_STATUS_VERSION: yading@10: str = "RTSP Version not supported"; yading@10: break; yading@10: default: yading@10: str = "Unknown Error"; yading@10: break; yading@10: } yading@10: yading@10: avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str); yading@10: avio_printf(c->pb, "CSeq: %d\r\n", c->seq); yading@10: yading@10: /* output GMT time */ yading@10: ti = time(NULL); yading@10: tm = gmtime(&ti); yading@10: strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm); yading@10: avio_printf(c->pb, "Date: %s GMT\r\n", buf2); yading@10: } yading@10: yading@10: static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number) yading@10: { yading@10: rtsp_reply_header(c, error_number); yading@10: avio_printf(c->pb, "\r\n"); yading@10: } yading@10: yading@10: static int rtsp_parse_request(HTTPContext *c) yading@10: { yading@10: const char *p, *p1, *p2; yading@10: char cmd[32]; yading@10: char url[1024]; yading@10: char protocol[32]; yading@10: char line[1024]; yading@10: int len; yading@10: RTSPMessageHeader header1 = { 0 }, *header = &header1; yading@10: yading@10: c->buffer_ptr[0] = '\0'; yading@10: p = c->buffer; yading@10: yading@10: get_word(cmd, sizeof(cmd), &p); yading@10: get_word(url, sizeof(url), &p); yading@10: get_word(protocol, sizeof(protocol), &p); yading@10: yading@10: av_strlcpy(c->method, cmd, sizeof(c->method)); yading@10: av_strlcpy(c->url, url, sizeof(c->url)); yading@10: av_strlcpy(c->protocol, protocol, sizeof(c->protocol)); yading@10: yading@10: if (avio_open_dyn_buf(&c->pb) < 0) { yading@10: /* XXX: cannot do more */ yading@10: c->pb = NULL; /* safety */ yading@10: return -1; yading@10: } yading@10: yading@10: /* check version name */ yading@10: if (strcmp(protocol, "RTSP/1.0") != 0) { yading@10: rtsp_reply_error(c, RTSP_STATUS_VERSION); yading@10: goto the_end; yading@10: } yading@10: yading@10: /* parse each header line */ yading@10: /* skip to next line */ yading@10: while (*p != '\n' && *p != '\0') yading@10: p++; yading@10: if (*p == '\n') yading@10: p++; yading@10: while (*p != '\0') { yading@10: p1 = memchr(p, '\n', (char *)c->buffer_ptr - p); yading@10: if (!p1) yading@10: break; yading@10: p2 = p1; yading@10: if (p2 > p && p2[-1] == '\r') yading@10: p2--; yading@10: /* skip empty line */ yading@10: if (p2 == p) yading@10: break; yading@10: len = p2 - p; yading@10: if (len > sizeof(line) - 1) yading@10: len = sizeof(line) - 1; yading@10: memcpy(line, p, len); yading@10: line[len] = '\0'; yading@10: ff_rtsp_parse_line(header, line, NULL, NULL); yading@10: p = p1 + 1; yading@10: } yading@10: yading@10: /* handle sequence number */ yading@10: c->seq = header->seq; yading@10: yading@10: if (!strcmp(cmd, "DESCRIBE")) yading@10: rtsp_cmd_describe(c, url); yading@10: else if (!strcmp(cmd, "OPTIONS")) yading@10: rtsp_cmd_options(c, url); yading@10: else if (!strcmp(cmd, "SETUP")) yading@10: rtsp_cmd_setup(c, url, header); yading@10: else if (!strcmp(cmd, "PLAY")) yading@10: rtsp_cmd_play(c, url, header); yading@10: else if (!strcmp(cmd, "PAUSE")) yading@10: rtsp_cmd_pause(c, url, header); yading@10: else if (!strcmp(cmd, "TEARDOWN")) yading@10: rtsp_cmd_teardown(c, url, header); yading@10: else yading@10: rtsp_reply_error(c, RTSP_STATUS_METHOD); yading@10: yading@10: the_end: yading@10: len = avio_close_dyn_buf(c->pb, &c->pb_buffer); yading@10: c->pb = NULL; /* safety */ yading@10: if (len < 0) { yading@10: /* XXX: cannot do more */ yading@10: return -1; yading@10: } yading@10: c->buffer_ptr = c->pb_buffer; yading@10: c->buffer_end = c->pb_buffer + len; yading@10: c->state = RTSPSTATE_SEND_REPLY; yading@10: return 0; yading@10: } yading@10: yading@10: static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer, yading@10: struct in_addr my_ip) yading@10: { yading@10: AVFormatContext *avc; yading@10: AVStream *avs = NULL; yading@10: AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL); yading@10: int i; yading@10: yading@10: avc = avformat_alloc_context(); yading@10: if (avc == NULL || !rtp_format) { yading@10: return -1; yading@10: } yading@10: avc->oformat = rtp_format; yading@10: av_dict_set(&avc->metadata, "title", yading@10: stream->title[0] ? stream->title : "No Title", 0); yading@10: avc->nb_streams = stream->nb_streams; yading@10: if (stream->is_multicast) { yading@10: snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d", yading@10: inet_ntoa(stream->multicast_ip), yading@10: stream->multicast_port, stream->multicast_ttl); yading@10: } else { yading@10: snprintf(avc->filename, 1024, "rtp://0.0.0.0"); yading@10: } yading@10: yading@10: if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) || yading@10: !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams)))) yading@10: goto sdp_done; yading@10: if (avc->nb_streams >= INT_MAX/sizeof(*avs) || yading@10: !(avs = av_malloc(avc->nb_streams * sizeof(*avs)))) yading@10: goto sdp_done; yading@10: yading@10: for(i = 0; i < stream->nb_streams; i++) { yading@10: avc->streams[i] = &avs[i]; yading@10: avc->streams[i]->codec = stream->streams[i]->codec; yading@10: } yading@10: *pbuffer = av_mallocz(2048); yading@10: av_sdp_create(&avc, 1, *pbuffer, 2048); yading@10: yading@10: sdp_done: yading@10: av_free(avc->streams); yading@10: av_dict_free(&avc->metadata); yading@10: av_free(avc); yading@10: av_free(avs); yading@10: yading@10: return strlen(*pbuffer); yading@10: } yading@10: yading@10: static void rtsp_cmd_options(HTTPContext *c, const char *url) yading@10: { yading@10: // rtsp_reply_header(c, RTSP_STATUS_OK); yading@10: avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK"); yading@10: avio_printf(c->pb, "CSeq: %d\r\n", c->seq); yading@10: avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE"); yading@10: avio_printf(c->pb, "\r\n"); yading@10: } yading@10: yading@10: static void rtsp_cmd_describe(HTTPContext *c, const char *url) yading@10: { yading@10: FFStream *stream; yading@10: char path1[1024]; yading@10: const char *path; yading@10: uint8_t *content; yading@10: int content_length; yading@10: socklen_t len; yading@10: struct sockaddr_in my_addr; yading@10: yading@10: /* find which url is asked */ yading@10: av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); yading@10: path = path1; yading@10: if (*path == '/') yading@10: path++; yading@10: yading@10: for(stream = first_stream; stream != NULL; stream = stream->next) { yading@10: if (!stream->is_feed && yading@10: stream->fmt && !strcmp(stream->fmt->name, "rtp") && yading@10: !strcmp(path, stream->filename)) { yading@10: goto found; yading@10: } yading@10: } yading@10: /* no stream found */ yading@10: rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */ yading@10: return; yading@10: yading@10: found: yading@10: /* prepare the media description in sdp format */ yading@10: yading@10: /* get the host IP */ yading@10: len = sizeof(my_addr); yading@10: getsockname(c->fd, (struct sockaddr *)&my_addr, &len); yading@10: content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr); yading@10: if (content_length < 0) { yading@10: rtsp_reply_error(c, RTSP_STATUS_INTERNAL); yading@10: return; yading@10: } yading@10: rtsp_reply_header(c, RTSP_STATUS_OK); yading@10: avio_printf(c->pb, "Content-Base: %s/\r\n", url); yading@10: avio_printf(c->pb, "Content-Type: application/sdp\r\n"); yading@10: avio_printf(c->pb, "Content-Length: %d\r\n", content_length); yading@10: avio_printf(c->pb, "\r\n"); yading@10: avio_write(c->pb, content, content_length); yading@10: av_free(content); yading@10: } yading@10: yading@10: static HTTPContext *find_rtp_session(const char *session_id) yading@10: { yading@10: HTTPContext *c; yading@10: yading@10: if (session_id[0] == '\0') yading@10: return NULL; yading@10: yading@10: for(c = first_http_ctx; c != NULL; c = c->next) { yading@10: if (!strcmp(c->session_id, session_id)) yading@10: return c; yading@10: } yading@10: return NULL; yading@10: } yading@10: yading@10: static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport) yading@10: { yading@10: RTSPTransportField *th; yading@10: int i; yading@10: yading@10: for(i=0;inb_transports;i++) { yading@10: th = &h->transports[i]; yading@10: if (th->lower_transport == lower_transport) yading@10: return th; yading@10: } yading@10: return NULL; yading@10: } yading@10: yading@10: static void rtsp_cmd_setup(HTTPContext *c, const char *url, yading@10: RTSPMessageHeader *h) yading@10: { yading@10: FFStream *stream; yading@10: int stream_index, rtp_port, rtcp_port; yading@10: char buf[1024]; yading@10: char path1[1024]; yading@10: const char *path; yading@10: HTTPContext *rtp_c; yading@10: RTSPTransportField *th; yading@10: struct sockaddr_in dest_addr; yading@10: RTSPActionServerSetup setup; yading@10: yading@10: /* find which url is asked */ yading@10: av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); yading@10: path = path1; yading@10: if (*path == '/') yading@10: path++; yading@10: yading@10: /* now check each stream */ yading@10: for(stream = first_stream; stream != NULL; stream = stream->next) { yading@10: if (!stream->is_feed && yading@10: stream->fmt && !strcmp(stream->fmt->name, "rtp")) { yading@10: /* accept aggregate filenames only if single stream */ yading@10: if (!strcmp(path, stream->filename)) { yading@10: if (stream->nb_streams != 1) { yading@10: rtsp_reply_error(c, RTSP_STATUS_AGGREGATE); yading@10: return; yading@10: } yading@10: stream_index = 0; yading@10: goto found; yading@10: } yading@10: yading@10: for(stream_index = 0; stream_index < stream->nb_streams; yading@10: stream_index++) { yading@10: snprintf(buf, sizeof(buf), "%s/streamid=%d", yading@10: stream->filename, stream_index); yading@10: if (!strcmp(path, buf)) yading@10: goto found; yading@10: } yading@10: } yading@10: } yading@10: /* no stream found */ yading@10: rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */ yading@10: return; yading@10: found: yading@10: yading@10: /* generate session id if needed */ yading@10: if (h->session_id[0] == '\0') { yading@10: unsigned random0 = av_lfg_get(&random_state); yading@10: unsigned random1 = av_lfg_get(&random_state); yading@10: snprintf(h->session_id, sizeof(h->session_id), "%08x%08x", yading@10: random0, random1); yading@10: } yading@10: yading@10: /* find rtp session, and create it if none found */ yading@10: rtp_c = find_rtp_session(h->session_id); yading@10: if (!rtp_c) { yading@10: /* always prefer UDP */ yading@10: th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP); yading@10: if (!th) { yading@10: th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP); yading@10: if (!th) { yading@10: rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); yading@10: return; yading@10: } yading@10: } yading@10: yading@10: rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id, yading@10: th->lower_transport); yading@10: if (!rtp_c) { yading@10: rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH); yading@10: return; yading@10: } yading@10: yading@10: /* open input stream */ yading@10: if (open_input_stream(rtp_c, "") < 0) { yading@10: rtsp_reply_error(c, RTSP_STATUS_INTERNAL); yading@10: return; yading@10: } yading@10: } yading@10: yading@10: /* test if stream is OK (test needed because several SETUP needs yading@10: to be done for a given file) */ yading@10: if (rtp_c->stream != stream) { yading@10: rtsp_reply_error(c, RTSP_STATUS_SERVICE); yading@10: return; yading@10: } yading@10: yading@10: /* test if stream is already set up */ yading@10: if (rtp_c->rtp_ctx[stream_index]) { yading@10: rtsp_reply_error(c, RTSP_STATUS_STATE); yading@10: return; yading@10: } yading@10: yading@10: /* check transport */ yading@10: th = find_transport(h, rtp_c->rtp_protocol); yading@10: if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP && yading@10: th->client_port_min <= 0)) { yading@10: rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); yading@10: return; yading@10: } yading@10: yading@10: /* setup default options */ yading@10: setup.transport_option[0] = '\0'; yading@10: dest_addr = rtp_c->from_addr; yading@10: dest_addr.sin_port = htons(th->client_port_min); yading@10: yading@10: /* setup stream */ yading@10: if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) { yading@10: rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); yading@10: return; yading@10: } yading@10: yading@10: /* now everything is OK, so we can send the connection parameters */ yading@10: rtsp_reply_header(c, RTSP_STATUS_OK); yading@10: /* session ID */ yading@10: avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); yading@10: yading@10: switch(rtp_c->rtp_protocol) { yading@10: case RTSP_LOWER_TRANSPORT_UDP: yading@10: rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]); yading@10: rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]); yading@10: avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;" yading@10: "client_port=%d-%d;server_port=%d-%d", yading@10: th->client_port_min, th->client_port_max, yading@10: rtp_port, rtcp_port); yading@10: break; yading@10: case RTSP_LOWER_TRANSPORT_TCP: yading@10: avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d", yading@10: stream_index * 2, stream_index * 2 + 1); yading@10: break; yading@10: default: yading@10: break; yading@10: } yading@10: if (setup.transport_option[0] != '\0') yading@10: avio_printf(c->pb, ";%s", setup.transport_option); yading@10: avio_printf(c->pb, "\r\n"); yading@10: yading@10: yading@10: avio_printf(c->pb, "\r\n"); yading@10: } yading@10: yading@10: yading@10: /* find an rtp connection by using the session ID. Check consistency yading@10: with filename */ yading@10: static HTTPContext *find_rtp_session_with_url(const char *url, yading@10: const char *session_id) yading@10: { yading@10: HTTPContext *rtp_c; yading@10: char path1[1024]; yading@10: const char *path; yading@10: char buf[1024]; yading@10: int s, len; yading@10: yading@10: rtp_c = find_rtp_session(session_id); yading@10: if (!rtp_c) yading@10: return NULL; yading@10: yading@10: /* find which url is asked */ yading@10: av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); yading@10: path = path1; yading@10: if (*path == '/') yading@10: path++; yading@10: if(!strcmp(path, rtp_c->stream->filename)) return rtp_c; yading@10: for(s=0; sstream->nb_streams; ++s) { yading@10: snprintf(buf, sizeof(buf), "%s/streamid=%d", yading@10: rtp_c->stream->filename, s); yading@10: if(!strncmp(path, buf, sizeof(buf))) { yading@10: // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1? yading@10: return rtp_c; yading@10: } yading@10: } yading@10: len = strlen(path); yading@10: if (len > 0 && path[len - 1] == '/' && yading@10: !strncmp(path, rtp_c->stream->filename, len - 1)) yading@10: return rtp_c; yading@10: return NULL; yading@10: } yading@10: yading@10: static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h) yading@10: { yading@10: HTTPContext *rtp_c; yading@10: yading@10: rtp_c = find_rtp_session_with_url(url, h->session_id); yading@10: if (!rtp_c) { yading@10: rtsp_reply_error(c, RTSP_STATUS_SESSION); yading@10: return; yading@10: } yading@10: yading@10: if (rtp_c->state != HTTPSTATE_SEND_DATA && yading@10: rtp_c->state != HTTPSTATE_WAIT_FEED && yading@10: rtp_c->state != HTTPSTATE_READY) { yading@10: rtsp_reply_error(c, RTSP_STATUS_STATE); yading@10: return; yading@10: } yading@10: yading@10: rtp_c->state = HTTPSTATE_SEND_DATA; yading@10: yading@10: /* now everything is OK, so we can send the connection parameters */ yading@10: rtsp_reply_header(c, RTSP_STATUS_OK); yading@10: /* session ID */ yading@10: avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); yading@10: avio_printf(c->pb, "\r\n"); yading@10: } yading@10: yading@10: static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h) yading@10: { yading@10: HTTPContext *rtp_c; yading@10: yading@10: rtp_c = find_rtp_session_with_url(url, h->session_id); yading@10: if (!rtp_c) { yading@10: rtsp_reply_error(c, RTSP_STATUS_SESSION); yading@10: return; yading@10: } yading@10: yading@10: if (rtp_c->state != HTTPSTATE_SEND_DATA && yading@10: rtp_c->state != HTTPSTATE_WAIT_FEED) { yading@10: rtsp_reply_error(c, RTSP_STATUS_STATE); yading@10: return; yading@10: } yading@10: yading@10: rtp_c->state = HTTPSTATE_READY; yading@10: rtp_c->first_pts = AV_NOPTS_VALUE; yading@10: /* now everything is OK, so we can send the connection parameters */ yading@10: rtsp_reply_header(c, RTSP_STATUS_OK); yading@10: /* session ID */ yading@10: avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); yading@10: avio_printf(c->pb, "\r\n"); yading@10: } yading@10: yading@10: static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h) yading@10: { yading@10: HTTPContext *rtp_c; yading@10: yading@10: rtp_c = find_rtp_session_with_url(url, h->session_id); yading@10: if (!rtp_c) { yading@10: rtsp_reply_error(c, RTSP_STATUS_SESSION); yading@10: return; yading@10: } yading@10: yading@10: /* now everything is OK, so we can send the connection parameters */ yading@10: rtsp_reply_header(c, RTSP_STATUS_OK); yading@10: /* session ID */ yading@10: avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); yading@10: avio_printf(c->pb, "\r\n"); yading@10: yading@10: /* abort the session */ yading@10: close_connection(rtp_c); yading@10: } yading@10: yading@10: yading@10: /********************************************************************/ yading@10: /* RTP handling */ yading@10: yading@10: static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr, yading@10: FFStream *stream, const char *session_id, yading@10: enum RTSPLowerTransport rtp_protocol) yading@10: { yading@10: HTTPContext *c = NULL; yading@10: const char *proto_str; yading@10: yading@10: /* XXX: should output a warning page when coming yading@10: close to the connection limit */ yading@10: if (nb_connections >= nb_max_connections) yading@10: goto fail; yading@10: yading@10: /* add a new connection */ yading@10: c = av_mallocz(sizeof(HTTPContext)); yading@10: if (!c) yading@10: goto fail; yading@10: yading@10: c->fd = -1; yading@10: c->poll_entry = NULL; yading@10: c->from_addr = *from_addr; yading@10: c->buffer_size = IOBUFFER_INIT_SIZE; yading@10: c->buffer = av_malloc(c->buffer_size); yading@10: if (!c->buffer) yading@10: goto fail; yading@10: nb_connections++; yading@10: c->stream = stream; yading@10: av_strlcpy(c->session_id, session_id, sizeof(c->session_id)); yading@10: c->state = HTTPSTATE_READY; yading@10: c->is_packetized = 1; yading@10: c->rtp_protocol = rtp_protocol; yading@10: yading@10: /* protocol is shown in statistics */ yading@10: switch(c->rtp_protocol) { yading@10: case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: yading@10: proto_str = "MCAST"; yading@10: break; yading@10: case RTSP_LOWER_TRANSPORT_UDP: yading@10: proto_str = "UDP"; yading@10: break; yading@10: case RTSP_LOWER_TRANSPORT_TCP: yading@10: proto_str = "TCP"; yading@10: break; yading@10: default: yading@10: proto_str = "???"; yading@10: break; yading@10: } yading@10: av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol)); yading@10: av_strlcat(c->protocol, proto_str, sizeof(c->protocol)); yading@10: yading@10: current_bandwidth += stream->bandwidth; yading@10: yading@10: c->next = first_http_ctx; yading@10: first_http_ctx = c; yading@10: return c; yading@10: yading@10: fail: yading@10: if (c) { yading@10: av_free(c->buffer); yading@10: av_free(c); yading@10: } yading@10: return NULL; yading@10: } yading@10: yading@10: /* add a new RTP stream in an RTP connection (used in RTSP SETUP yading@10: command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is yading@10: used. */ yading@10: static int rtp_new_av_stream(HTTPContext *c, yading@10: int stream_index, struct sockaddr_in *dest_addr, yading@10: HTTPContext *rtsp_c) yading@10: { yading@10: AVFormatContext *ctx; yading@10: AVStream *st; yading@10: char *ipaddr; yading@10: URLContext *h = NULL; yading@10: uint8_t *dummy_buf; yading@10: int max_packet_size; yading@10: yading@10: /* now we can open the relevant output stream */ yading@10: ctx = avformat_alloc_context(); yading@10: if (!ctx) yading@10: return -1; yading@10: ctx->oformat = av_guess_format("rtp", NULL, NULL); yading@10: yading@10: st = av_mallocz(sizeof(AVStream)); yading@10: if (!st) yading@10: goto fail; yading@10: ctx->nb_streams = 1; yading@10: ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams); yading@10: if (!ctx->streams) yading@10: goto fail; yading@10: ctx->streams[0] = st; yading@10: yading@10: if (!c->stream->feed || yading@10: c->stream->feed == c->stream) yading@10: memcpy(st, c->stream->streams[stream_index], sizeof(AVStream)); yading@10: else yading@10: memcpy(st, yading@10: c->stream->feed->streams[c->stream->feed_streams[stream_index]], yading@10: sizeof(AVStream)); yading@10: st->priv_data = NULL; yading@10: yading@10: /* build destination RTP address */ yading@10: ipaddr = inet_ntoa(dest_addr->sin_addr); yading@10: yading@10: switch(c->rtp_protocol) { yading@10: case RTSP_LOWER_TRANSPORT_UDP: yading@10: case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: yading@10: /* RTP/UDP case */ yading@10: yading@10: /* XXX: also pass as parameter to function ? */ yading@10: if (c->stream->is_multicast) { yading@10: int ttl; yading@10: ttl = c->stream->multicast_ttl; yading@10: if (!ttl) yading@10: ttl = 16; yading@10: snprintf(ctx->filename, sizeof(ctx->filename), yading@10: "rtp://%s:%d?multicast=1&ttl=%d", yading@10: ipaddr, ntohs(dest_addr->sin_port), ttl); yading@10: } else { yading@10: snprintf(ctx->filename, sizeof(ctx->filename), yading@10: "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port)); yading@10: } yading@10: yading@10: if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0) yading@10: goto fail; yading@10: c->rtp_handles[stream_index] = h; yading@10: max_packet_size = h->max_packet_size; yading@10: break; yading@10: case RTSP_LOWER_TRANSPORT_TCP: yading@10: /* RTP/TCP case */ yading@10: c->rtsp_c = rtsp_c; yading@10: max_packet_size = RTSP_TCP_MAX_PACKET_SIZE; yading@10: break; yading@10: default: yading@10: goto fail; yading@10: } yading@10: yading@10: http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n", yading@10: ipaddr, ntohs(dest_addr->sin_port), yading@10: c->stream->filename, stream_index, c->protocol); yading@10: yading@10: /* normally, no packets should be output here, but the packet size may be checked */ yading@10: if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) { yading@10: /* XXX: close stream */ yading@10: goto fail; yading@10: } yading@10: if (avformat_write_header(ctx, NULL) < 0) { yading@10: fail: yading@10: if (h) yading@10: ffurl_close(h); yading@10: av_free(ctx); yading@10: return -1; yading@10: } yading@10: avio_close_dyn_buf(ctx->pb, &dummy_buf); yading@10: av_free(dummy_buf); yading@10: yading@10: c->rtp_ctx[stream_index] = ctx; yading@10: return 0; yading@10: } yading@10: yading@10: /********************************************************************/ yading@10: /* ffserver initialization */ yading@10: yading@10: static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy) yading@10: { yading@10: AVStream *fst; yading@10: yading@10: if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams)) yading@10: return NULL; yading@10: yading@10: fst = av_mallocz(sizeof(AVStream)); yading@10: if (!fst) yading@10: return NULL; yading@10: if (copy) { yading@10: fst->codec = avcodec_alloc_context3(NULL); yading@10: memcpy(fst->codec, codec, sizeof(AVCodecContext)); yading@10: if (codec->extradata_size) { yading@10: fst->codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); yading@10: memcpy(fst->codec->extradata, codec->extradata, yading@10: codec->extradata_size); yading@10: } yading@10: } else { yading@10: /* live streams must use the actual feed's codec since it may be yading@10: * updated later to carry extradata needed by the streams. yading@10: */ yading@10: fst->codec = codec; yading@10: } yading@10: fst->priv_data = av_mallocz(sizeof(FeedData)); yading@10: fst->index = stream->nb_streams; yading@10: avpriv_set_pts_info(fst, 33, 1, 90000); yading@10: fst->sample_aspect_ratio = codec->sample_aspect_ratio; yading@10: stream->streams[stream->nb_streams++] = fst; yading@10: return fst; yading@10: } yading@10: yading@10: /* return the stream number in the feed */ yading@10: static int add_av_stream(FFStream *feed, AVStream *st) yading@10: { yading@10: AVStream *fst; yading@10: AVCodecContext *av, *av1; yading@10: int i; yading@10: yading@10: av = st->codec; yading@10: for(i=0;inb_streams;i++) { yading@10: st = feed->streams[i]; yading@10: av1 = st->codec; yading@10: if (av1->codec_id == av->codec_id && yading@10: av1->codec_type == av->codec_type && yading@10: av1->bit_rate == av->bit_rate) { yading@10: yading@10: switch(av->codec_type) { yading@10: case AVMEDIA_TYPE_AUDIO: yading@10: if (av1->channels == av->channels && yading@10: av1->sample_rate == av->sample_rate) yading@10: return i; yading@10: break; yading@10: case AVMEDIA_TYPE_VIDEO: yading@10: if (av1->width == av->width && yading@10: av1->height == av->height && yading@10: av1->time_base.den == av->time_base.den && yading@10: av1->time_base.num == av->time_base.num && yading@10: av1->gop_size == av->gop_size) yading@10: return i; yading@10: break; yading@10: default: yading@10: abort(); yading@10: } yading@10: } yading@10: } yading@10: yading@10: fst = add_av_stream1(feed, av, 0); yading@10: if (!fst) yading@10: return -1; yading@10: return feed->nb_streams - 1; yading@10: } yading@10: yading@10: static void remove_stream(FFStream *stream) yading@10: { yading@10: FFStream **ps; yading@10: ps = &first_stream; yading@10: while (*ps != NULL) { yading@10: if (*ps == stream) yading@10: *ps = (*ps)->next; yading@10: else yading@10: ps = &(*ps)->next; yading@10: } yading@10: } yading@10: yading@10: /* specific mpeg4 handling : we extract the raw parameters */ yading@10: static void extract_mpeg4_header(AVFormatContext *infile) yading@10: { yading@10: int mpeg4_count, i, size; yading@10: AVPacket pkt; yading@10: AVStream *st; yading@10: const uint8_t *p; yading@10: yading@10: infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE; yading@10: yading@10: mpeg4_count = 0; yading@10: for(i=0;inb_streams;i++) { yading@10: st = infile->streams[i]; yading@10: if (st->codec->codec_id == AV_CODEC_ID_MPEG4 && yading@10: st->codec->extradata_size == 0) { yading@10: mpeg4_count++; yading@10: } yading@10: } yading@10: if (!mpeg4_count) yading@10: return; yading@10: yading@10: printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename); yading@10: while (mpeg4_count > 0) { yading@10: if (av_read_frame(infile, &pkt) < 0) yading@10: break; yading@10: st = infile->streams[pkt.stream_index]; yading@10: if (st->codec->codec_id == AV_CODEC_ID_MPEG4 && yading@10: st->codec->extradata_size == 0) { yading@10: av_freep(&st->codec->extradata); yading@10: /* fill extradata with the header */ yading@10: /* XXX: we make hard suppositions here ! */ yading@10: p = pkt.data; yading@10: while (p < pkt.data + pkt.size - 4) { yading@10: /* stop when vop header is found */ yading@10: if (p[0] == 0x00 && p[1] == 0x00 && yading@10: p[2] == 0x01 && p[3] == 0xb6) { yading@10: size = p - pkt.data; yading@10: // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size); yading@10: st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE); yading@10: st->codec->extradata_size = size; yading@10: memcpy(st->codec->extradata, pkt.data, size); yading@10: break; yading@10: } yading@10: p++; yading@10: } yading@10: mpeg4_count--; yading@10: } yading@10: av_free_packet(&pkt); yading@10: } yading@10: } yading@10: yading@10: /* compute the needed AVStream for each file */ yading@10: static void build_file_streams(void) yading@10: { yading@10: FFStream *stream, *stream_next; yading@10: int i, ret; yading@10: yading@10: /* gather all streams */ yading@10: for(stream = first_stream; stream != NULL; stream = stream_next) { yading@10: AVFormatContext *infile = NULL; yading@10: stream_next = stream->next; yading@10: if (stream->stream_type == STREAM_TYPE_LIVE && yading@10: !stream->feed) { yading@10: /* the stream comes from a file */ yading@10: /* try to open the file */ yading@10: /* open stream */ yading@10: if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) { yading@10: /* specific case : if transport stream output to RTP, yading@10: we use a raw transport stream reader */ yading@10: av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0); yading@10: } yading@10: yading@10: http_log("Opening file '%s'\n", stream->feed_filename); yading@10: if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) { yading@10: http_log("Could not open '%s': %d\n", stream->feed_filename, ret); yading@10: /* remove stream (no need to spend more time on it) */ yading@10: fail: yading@10: remove_stream(stream); yading@10: } else { yading@10: /* find all the AVStreams inside and reference them in yading@10: 'stream' */ yading@10: if (avformat_find_stream_info(infile, NULL) < 0) { yading@10: http_log("Could not find codec parameters from '%s'\n", yading@10: stream->feed_filename); yading@10: avformat_close_input(&infile); yading@10: goto fail; yading@10: } yading@10: extract_mpeg4_header(infile); yading@10: yading@10: for(i=0;inb_streams;i++) yading@10: add_av_stream1(stream, infile->streams[i]->codec, 1); yading@10: yading@10: avformat_close_input(&infile); yading@10: } yading@10: } yading@10: } yading@10: } yading@10: yading@10: /* compute the needed AVStream for each feed */ yading@10: static void build_feed_streams(void) yading@10: { yading@10: FFStream *stream, *feed; yading@10: int i; yading@10: yading@10: /* gather all streams */ yading@10: for(stream = first_stream; stream != NULL; stream = stream->next) { yading@10: feed = stream->feed; yading@10: if (feed) { yading@10: if (stream->is_feed) { yading@10: for(i=0;inb_streams;i++) yading@10: stream->feed_streams[i] = i; yading@10: } else { yading@10: /* we handle a stream coming from a feed */ yading@10: for(i=0;inb_streams;i++) yading@10: stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]); yading@10: } yading@10: } yading@10: } yading@10: yading@10: /* create feed files if needed */ yading@10: for(feed = first_feed; feed != NULL; feed = feed->next_feed) { yading@10: int fd; yading@10: yading@10: if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) { yading@10: /* See if it matches */ yading@10: AVFormatContext *s = NULL; yading@10: int matches = 0; yading@10: yading@10: if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) { yading@10: /* set buffer size */ yading@10: ffio_set_buf_size(s->pb, FFM_PACKET_SIZE); yading@10: /* Now see if it matches */ yading@10: if (s->nb_streams == feed->nb_streams) { yading@10: matches = 1; yading@10: for(i=0;inb_streams;i++) { yading@10: AVStream *sf, *ss; yading@10: sf = feed->streams[i]; yading@10: ss = s->streams[i]; yading@10: yading@10: if (sf->index != ss->index || yading@10: sf->id != ss->id) { yading@10: http_log("Index & Id do not match for stream %d (%s)\n", yading@10: i, feed->feed_filename); yading@10: matches = 0; yading@10: } else { yading@10: AVCodecContext *ccf, *ccs; yading@10: yading@10: ccf = sf->codec; yading@10: ccs = ss->codec; yading@10: #define CHECK_CODEC(x) (ccf->x != ccs->x) yading@10: yading@10: if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) { yading@10: http_log("Codecs do not match for stream %d\n", i); yading@10: matches = 0; yading@10: } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) { yading@10: http_log("Codec bitrates do not match for stream %d\n", i); yading@10: matches = 0; yading@10: } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) { yading@10: if (CHECK_CODEC(time_base.den) || yading@10: CHECK_CODEC(time_base.num) || yading@10: CHECK_CODEC(width) || yading@10: CHECK_CODEC(height)) { yading@10: http_log("Codec width, height and framerate do not match for stream %d\n", i); yading@10: matches = 0; yading@10: } yading@10: } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) { yading@10: if (CHECK_CODEC(sample_rate) || yading@10: CHECK_CODEC(channels) || yading@10: CHECK_CODEC(frame_size)) { yading@10: http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i); yading@10: matches = 0; yading@10: } yading@10: } else { yading@10: http_log("Unknown codec type\n"); yading@10: matches = 0; yading@10: } yading@10: } yading@10: if (!matches) yading@10: break; yading@10: } yading@10: } else yading@10: http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n", yading@10: feed->feed_filename, s->nb_streams, feed->nb_streams); yading@10: yading@10: avformat_close_input(&s); yading@10: } else yading@10: http_log("Deleting feed file '%s' as it appears to be corrupt\n", yading@10: feed->feed_filename); yading@10: yading@10: if (!matches) { yading@10: if (feed->readonly) { yading@10: http_log("Unable to delete feed file '%s' as it is marked readonly\n", yading@10: feed->feed_filename); yading@10: exit(1); yading@10: } yading@10: unlink(feed->feed_filename); yading@10: } yading@10: } yading@10: if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) { yading@10: AVFormatContext s1 = {0}, *s = &s1; yading@10: yading@10: if (feed->readonly) { yading@10: http_log("Unable to create feed file '%s' as it is marked readonly\n", yading@10: feed->feed_filename); yading@10: exit(1); yading@10: } yading@10: yading@10: /* only write the header of the ffm file */ yading@10: if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) { yading@10: http_log("Could not open output feed file '%s'\n", yading@10: feed->feed_filename); yading@10: exit(1); yading@10: } yading@10: s->oformat = feed->fmt; yading@10: s->nb_streams = feed->nb_streams; yading@10: s->streams = feed->streams; yading@10: if (avformat_write_header(s, NULL) < 0) { yading@10: http_log("Container doesn't support the required parameters\n"); yading@10: exit(1); yading@10: } yading@10: /* XXX: need better api */ yading@10: av_freep(&s->priv_data); yading@10: avio_close(s->pb); yading@10: } yading@10: /* get feed size and write index */ yading@10: fd = open(feed->feed_filename, O_RDONLY); yading@10: if (fd < 0) { yading@10: http_log("Could not open output feed file '%s'\n", yading@10: feed->feed_filename); yading@10: exit(1); yading@10: } yading@10: yading@10: feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE); yading@10: feed->feed_size = lseek(fd, 0, SEEK_END); yading@10: /* ensure that we do not wrap before the end of file */ yading@10: if (feed->feed_max_size && feed->feed_max_size < feed->feed_size) yading@10: feed->feed_max_size = feed->feed_size; yading@10: yading@10: close(fd); yading@10: } yading@10: } yading@10: yading@10: /* compute the bandwidth used by each stream */ yading@10: static void compute_bandwidth(void) yading@10: { yading@10: unsigned bandwidth; yading@10: int i; yading@10: FFStream *stream; yading@10: yading@10: for(stream = first_stream; stream != NULL; stream = stream->next) { yading@10: bandwidth = 0; yading@10: for(i=0;inb_streams;i++) { yading@10: AVStream *st = stream->streams[i]; yading@10: switch(st->codec->codec_type) { yading@10: case AVMEDIA_TYPE_AUDIO: yading@10: case AVMEDIA_TYPE_VIDEO: yading@10: bandwidth += st->codec->bit_rate; yading@10: break; yading@10: default: yading@10: break; yading@10: } yading@10: } yading@10: stream->bandwidth = (bandwidth + 999) / 1000; yading@10: } yading@10: } yading@10: yading@10: /* add a codec and set the default parameters */ yading@10: static void add_codec(FFStream *stream, AVCodecContext *av) yading@10: { yading@10: AVStream *st; yading@10: yading@10: if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams)) yading@10: return; yading@10: yading@10: /* compute default parameters */ yading@10: switch(av->codec_type) { yading@10: case AVMEDIA_TYPE_AUDIO: yading@10: if (av->bit_rate == 0) yading@10: av->bit_rate = 64000; yading@10: if (av->sample_rate == 0) yading@10: av->sample_rate = 22050; yading@10: if (av->channels == 0) yading@10: av->channels = 1; yading@10: break; yading@10: case AVMEDIA_TYPE_VIDEO: yading@10: if (av->bit_rate == 0) yading@10: av->bit_rate = 64000; yading@10: if (av->time_base.num == 0){ yading@10: av->time_base.den = 5; yading@10: av->time_base.num = 1; yading@10: } yading@10: if (av->width == 0 || av->height == 0) { yading@10: av->width = 160; yading@10: av->height = 128; yading@10: } yading@10: /* Bitrate tolerance is less for streaming */ yading@10: if (av->bit_rate_tolerance == 0) yading@10: av->bit_rate_tolerance = FFMAX(av->bit_rate / 4, yading@10: (int64_t)av->bit_rate*av->time_base.num/av->time_base.den); yading@10: if (av->qmin == 0) yading@10: av->qmin = 3; yading@10: if (av->qmax == 0) yading@10: av->qmax = 31; yading@10: if (av->max_qdiff == 0) yading@10: av->max_qdiff = 3; yading@10: av->qcompress = 0.5; yading@10: av->qblur = 0.5; yading@10: yading@10: if (!av->nsse_weight) yading@10: av->nsse_weight = 8; yading@10: yading@10: av->frame_skip_cmp = FF_CMP_DCTMAX; yading@10: if (!av->me_method) yading@10: av->me_method = ME_EPZS; yading@10: av->rc_buffer_aggressivity = 1.0; yading@10: yading@10: if (!av->rc_eq) yading@10: av->rc_eq = "tex^qComp"; yading@10: if (!av->i_quant_factor) yading@10: av->i_quant_factor = -0.8; yading@10: if (!av->b_quant_factor) yading@10: av->b_quant_factor = 1.25; yading@10: if (!av->b_quant_offset) yading@10: av->b_quant_offset = 1.25; yading@10: if (!av->rc_max_rate) yading@10: av->rc_max_rate = av->bit_rate * 2; yading@10: yading@10: if (av->rc_max_rate && !av->rc_buffer_size) { yading@10: av->rc_buffer_size = av->rc_max_rate; yading@10: } yading@10: yading@10: yading@10: break; yading@10: default: yading@10: abort(); yading@10: } yading@10: yading@10: st = av_mallocz(sizeof(AVStream)); yading@10: if (!st) yading@10: return; yading@10: st->codec = avcodec_alloc_context3(NULL); yading@10: stream->streams[stream->nb_streams++] = st; yading@10: memcpy(st->codec, av, sizeof(AVCodecContext)); yading@10: } yading@10: yading@10: static enum AVCodecID opt_audio_codec(const char *arg) yading@10: { yading@10: AVCodec *p= avcodec_find_encoder_by_name(arg); yading@10: yading@10: if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO) yading@10: return AV_CODEC_ID_NONE; yading@10: yading@10: return p->id; yading@10: } yading@10: yading@10: static enum AVCodecID opt_video_codec(const char *arg) yading@10: { yading@10: AVCodec *p= avcodec_find_encoder_by_name(arg); yading@10: yading@10: if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO) yading@10: return AV_CODEC_ID_NONE; yading@10: yading@10: return p->id; yading@10: } yading@10: yading@10: /* simplistic plugin support */ yading@10: yading@10: #if HAVE_DLOPEN yading@10: static void load_module(const char *filename) yading@10: { yading@10: void *dll; yading@10: void (*init_func)(void); yading@10: dll = dlopen(filename, RTLD_NOW); yading@10: if (!dll) { yading@10: fprintf(stderr, "Could not load module '%s' - %s\n", yading@10: filename, dlerror()); yading@10: return; yading@10: } yading@10: yading@10: init_func = dlsym(dll, "ffserver_module_init"); yading@10: if (!init_func) { yading@10: fprintf(stderr, yading@10: "%s: init function 'ffserver_module_init()' not found\n", yading@10: filename); yading@10: dlclose(dll); yading@10: } yading@10: yading@10: init_func(); yading@10: } yading@10: #endif yading@10: yading@10: static int ffserver_opt_default(const char *opt, const char *arg, yading@10: AVCodecContext *avctx, int type) yading@10: { yading@10: int ret = 0; yading@10: const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0); yading@10: if(o) yading@10: ret = av_opt_set(avctx, opt, arg, 0); yading@10: return ret; yading@10: } yading@10: yading@10: static int ffserver_opt_preset(const char *arg, yading@10: AVCodecContext *avctx, int type, yading@10: enum AVCodecID *audio_id, enum AVCodecID *video_id) yading@10: { yading@10: FILE *f=NULL; yading@10: char filename[1000], tmp[1000], tmp2[1000], line[1000]; yading@10: int ret = 0; yading@10: AVCodec *codec = avcodec_find_encoder(avctx->codec_id); yading@10: yading@10: if (!(f = get_preset_file(filename, sizeof(filename), arg, 0, yading@10: codec ? codec->name : NULL))) { yading@10: fprintf(stderr, "File for preset '%s' not found\n", arg); yading@10: return 1; yading@10: } yading@10: yading@10: while(!feof(f)){ yading@10: int e= fscanf(f, "%999[^\n]\n", line) - 1; yading@10: if(line[0] == '#' && !e) yading@10: continue; yading@10: e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2; yading@10: if(e){ yading@10: fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line); yading@10: ret = 1; yading@10: break; yading@10: } yading@10: if(!strcmp(tmp, "acodec")){ yading@10: *audio_id = opt_audio_codec(tmp2); yading@10: }else if(!strcmp(tmp, "vcodec")){ yading@10: *video_id = opt_video_codec(tmp2); yading@10: }else if(!strcmp(tmp, "scodec")){ yading@10: /* opt_subtitle_codec(tmp2); */ yading@10: }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){ yading@10: fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2); yading@10: ret = 1; yading@10: break; yading@10: } yading@10: } yading@10: yading@10: fclose(f); yading@10: yading@10: return ret; yading@10: } yading@10: yading@10: static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename, yading@10: const char *mime_type) yading@10: { yading@10: AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type); yading@10: yading@10: if (fmt) { yading@10: AVOutputFormat *stream_fmt; yading@10: char stream_format_name[64]; yading@10: yading@10: snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name); yading@10: stream_fmt = av_guess_format(stream_format_name, NULL, NULL); yading@10: yading@10: if (stream_fmt) yading@10: fmt = stream_fmt; yading@10: } yading@10: yading@10: return fmt; yading@10: } yading@10: yading@10: static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...) yading@10: { yading@10: va_list vl; yading@10: va_start(vl, fmt); yading@10: fprintf(stderr, "%s:%d: ", filename, line_num); yading@10: vfprintf(stderr, fmt, vl); yading@10: va_end(vl); yading@10: yading@10: (*errors)++; yading@10: } yading@10: yading@10: static int parse_ffconfig(const char *filename) yading@10: { yading@10: FILE *f; yading@10: char line[1024]; yading@10: char cmd[64]; yading@10: char arg[1024]; yading@10: const char *p; yading@10: int val, errors, line_num; yading@10: FFStream **last_stream, *stream, *redirect; yading@10: FFStream **last_feed, *feed, *s; yading@10: AVCodecContext audio_enc, video_enc; yading@10: enum AVCodecID audio_id, video_id; yading@10: yading@10: f = fopen(filename, "r"); yading@10: if (!f) { yading@10: perror(filename); yading@10: return -1; yading@10: } yading@10: yading@10: errors = 0; yading@10: line_num = 0; yading@10: first_stream = NULL; yading@10: last_stream = &first_stream; yading@10: first_feed = NULL; yading@10: last_feed = &first_feed; yading@10: stream = NULL; yading@10: feed = NULL; yading@10: redirect = NULL; yading@10: audio_id = AV_CODEC_ID_NONE; yading@10: video_id = AV_CODEC_ID_NONE; yading@10: yading@10: #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__) yading@10: for(;;) { yading@10: if (fgets(line, sizeof(line), f) == NULL) yading@10: break; yading@10: line_num++; yading@10: p = line; yading@10: while (av_isspace(*p)) yading@10: p++; yading@10: if (*p == '\0' || *p == '#') yading@10: continue; yading@10: yading@10: get_arg(cmd, sizeof(cmd), &p); yading@10: yading@10: if (!av_strcasecmp(cmd, "Port")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: val = atoi(arg); yading@10: if (val < 1 || val > 65536) { yading@10: ERROR("Invalid_port: %s\n", arg); yading@10: } yading@10: my_http_addr.sin_port = htons(val); yading@10: } else if (!av_strcasecmp(cmd, "BindAddress")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (resolve_host(&my_http_addr.sin_addr, arg) != 0) { yading@10: ERROR("%s:%d: Invalid host/IP address: %s\n", arg); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "NoDaemon")) { yading@10: // do nothing here, its the default now yading@10: } else if (!av_strcasecmp(cmd, "RTSPPort")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: val = atoi(arg); yading@10: if (val < 1 || val > 65536) { yading@10: ERROR("%s:%d: Invalid port: %s\n", arg); yading@10: } yading@10: my_rtsp_addr.sin_port = htons(atoi(arg)); yading@10: } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) { yading@10: ERROR("Invalid host/IP address: %s\n", arg); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: val = atoi(arg); yading@10: if (val < 1 || val > 65536) { yading@10: ERROR("Invalid MaxHTTPConnections: %s\n", arg); yading@10: } yading@10: nb_max_http_connections = val; yading@10: } else if (!av_strcasecmp(cmd, "MaxClients")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: val = atoi(arg); yading@10: if (val < 1 || val > nb_max_http_connections) { yading@10: ERROR("Invalid MaxClients: %s\n", arg); yading@10: } else { yading@10: nb_max_connections = val; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "MaxBandwidth")) { yading@10: int64_t llval; yading@10: get_arg(arg, sizeof(arg), &p); yading@10: llval = atoll(arg); yading@10: if (llval < 10 || llval > 10000000) { yading@10: ERROR("Invalid MaxBandwidth: %s\n", arg); yading@10: } else yading@10: max_bandwidth = llval; yading@10: } else if (!av_strcasecmp(cmd, "CustomLog")) { yading@10: if (!ffserver_debug) yading@10: get_arg(logfilename, sizeof(logfilename), &p); yading@10: } else if (!av_strcasecmp(cmd, "filename, sizeof(feed->filename), &p); yading@10: q = strrchr(feed->filename, '>'); yading@10: if (*q) yading@10: *q = '\0'; yading@10: yading@10: for (s = first_feed; s; s = s->next) { yading@10: if (!strcmp(feed->filename, s->filename)) { yading@10: ERROR("Feed '%s' already registered\n", s->filename); yading@10: } yading@10: } yading@10: yading@10: feed->fmt = av_guess_format("ffm", NULL, NULL); yading@10: /* defaut feed file */ yading@10: snprintf(feed->feed_filename, sizeof(feed->feed_filename), yading@10: "/tmp/%s.ffm", feed->filename); yading@10: feed->feed_max_size = 5 * 1024 * 1024; yading@10: feed->is_feed = 1; yading@10: feed->feed = feed; /* self feeding :-) */ yading@10: yading@10: /* add in stream list */ yading@10: *last_stream = feed; yading@10: last_stream = &feed->next; yading@10: /* add in feed list */ yading@10: *last_feed = feed; yading@10: last_feed = &feed->next_feed; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "Launch")) { yading@10: if (feed) { yading@10: int i; yading@10: yading@10: feed->child_argv = av_mallocz(64 * sizeof(char *)); yading@10: yading@10: for (i = 0; i < 62; i++) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (!arg[0]) yading@10: break; yading@10: yading@10: feed->child_argv[i] = av_strdup(arg); yading@10: } yading@10: yading@10: feed->child_argv[i] = av_asprintf("http://%s:%d/%s", yading@10: (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" : yading@10: inet_ntoa(my_http_addr.sin_addr), yading@10: ntohs(my_http_addr.sin_port), feed->filename); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "ReadOnlyFile")) { yading@10: if (feed) { yading@10: get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p); yading@10: feed->readonly = 1; yading@10: } else if (stream) { yading@10: get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "File")) { yading@10: if (feed) { yading@10: get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p); yading@10: } else if (stream) yading@10: get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p); yading@10: } else if (!av_strcasecmp(cmd, "Truncate")) { yading@10: if (feed) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: feed->truncate = strtod(arg, NULL); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "FileMaxSize")) { yading@10: if (feed) { yading@10: char *p1; yading@10: double fsize; yading@10: yading@10: get_arg(arg, sizeof(arg), &p); yading@10: p1 = arg; yading@10: fsize = strtod(p1, &p1); yading@10: switch(av_toupper(*p1)) { yading@10: case 'K': yading@10: fsize *= 1024; yading@10: break; yading@10: case 'M': yading@10: fsize *= 1024 * 1024; yading@10: break; yading@10: case 'G': yading@10: fsize *= 1024 * 1024 * 1024; yading@10: break; yading@10: } yading@10: feed->feed_max_size = (int64_t)fsize; yading@10: if (feed->feed_max_size < FFM_PACKET_SIZE*4) { yading@10: ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4); yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "")) { yading@10: if (!feed) { yading@10: ERROR("No corresponding for \n"); yading@10: } yading@10: feed = NULL; yading@10: } else if (!av_strcasecmp(cmd, "filename, sizeof(stream->filename), &p); yading@10: q = strrchr(stream->filename, '>'); yading@10: if (q) yading@10: *q = '\0'; yading@10: yading@10: for (s = first_stream; s; s = s->next) { yading@10: if (!strcmp(stream->filename, s->filename)) { yading@10: ERROR("Stream '%s' already registered\n", s->filename); yading@10: } yading@10: } yading@10: yading@10: stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL); yading@10: avcodec_get_context_defaults3(&video_enc, NULL); yading@10: avcodec_get_context_defaults3(&audio_enc, NULL); yading@10: yading@10: audio_id = AV_CODEC_ID_NONE; yading@10: video_id = AV_CODEC_ID_NONE; yading@10: if (stream->fmt) { yading@10: audio_id = stream->fmt->audio_codec; yading@10: video_id = stream->fmt->video_codec; yading@10: } yading@10: yading@10: *last_stream = stream; yading@10: last_stream = &stream->next; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "Feed")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: FFStream *sfeed; yading@10: yading@10: sfeed = first_feed; yading@10: while (sfeed != NULL) { yading@10: if (!strcmp(sfeed->filename, arg)) yading@10: break; yading@10: sfeed = sfeed->next_feed; yading@10: } yading@10: if (!sfeed) yading@10: ERROR("feed '%s' not defined\n", arg); yading@10: else yading@10: stream->feed = sfeed; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "Format")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: if (!strcmp(arg, "status")) { yading@10: stream->stream_type = STREAM_TYPE_STATUS; yading@10: stream->fmt = NULL; yading@10: } else { yading@10: stream->stream_type = STREAM_TYPE_LIVE; yading@10: /* jpeg cannot be used here, so use single frame jpeg */ yading@10: if (!strcmp(arg, "jpeg")) yading@10: strcpy(arg, "mjpeg"); yading@10: stream->fmt = ffserver_guess_format(arg, NULL, NULL); yading@10: if (!stream->fmt) { yading@10: ERROR("Unknown Format: %s\n", arg); yading@10: } yading@10: } yading@10: if (stream->fmt) { yading@10: audio_id = stream->fmt->audio_codec; yading@10: video_id = stream->fmt->video_codec; yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "InputFormat")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: stream->ifmt = av_find_input_format(arg); yading@10: if (!stream->ifmt) { yading@10: ERROR("Unknown input format: %s\n", arg); yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "FaviconURL")) { yading@10: if (stream && stream->stream_type == STREAM_TYPE_STATUS) { yading@10: get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p); yading@10: } else { yading@10: ERROR("FaviconURL only permitted for status streams\n"); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "Author")) { yading@10: if (stream) yading@10: get_arg(stream->author, sizeof(stream->author), &p); yading@10: } else if (!av_strcasecmp(cmd, "Comment")) { yading@10: if (stream) yading@10: get_arg(stream->comment, sizeof(stream->comment), &p); yading@10: } else if (!av_strcasecmp(cmd, "Copyright")) { yading@10: if (stream) yading@10: get_arg(stream->copyright, sizeof(stream->copyright), &p); yading@10: } else if (!av_strcasecmp(cmd, "Title")) { yading@10: if (stream) yading@10: get_arg(stream->title, sizeof(stream->title), &p); yading@10: } else if (!av_strcasecmp(cmd, "Preroll")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: stream->prebuffer = atof(arg) * 1000; yading@10: } else if (!av_strcasecmp(cmd, "StartSendOnKey")) { yading@10: if (stream) yading@10: stream->send_on_key = 1; yading@10: } else if (!av_strcasecmp(cmd, "AudioCodec")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: audio_id = opt_audio_codec(arg); yading@10: if (audio_id == AV_CODEC_ID_NONE) { yading@10: ERROR("Unknown AudioCodec: %s\n", arg); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoCodec")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: video_id = opt_video_codec(arg); yading@10: if (video_id == AV_CODEC_ID_NONE) { yading@10: ERROR("Unknown VideoCodec: %s\n", arg); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "MaxTime")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: stream->max_time = atof(arg) * 1000; yading@10: } else if (!av_strcasecmp(cmd, "AudioBitRate")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: audio_enc.bit_rate = lrintf(atof(arg) * 1000); yading@10: } else if (!av_strcasecmp(cmd, "AudioChannels")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: audio_enc.channels = atoi(arg); yading@10: } else if (!av_strcasecmp(cmd, "AudioSampleRate")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: audio_enc.sample_rate = atoi(arg); yading@10: } else if (!av_strcasecmp(cmd, "AudioQuality")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: // audio_enc.quality = atof(arg) * 1000; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) { yading@10: if (stream) { yading@10: int minrate, maxrate; yading@10: yading@10: get_arg(arg, sizeof(arg), &p); yading@10: yading@10: if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) { yading@10: video_enc.rc_min_rate = minrate * 1000; yading@10: video_enc.rc_max_rate = maxrate * 1000; yading@10: } else { yading@10: ERROR("Incorrect format for VideoBitRateRange -- should be -: %s\n", arg); yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "Debug")) { yading@10: if (stream) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: video_enc.debug = strtol(arg,0,0); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "Strict")) { yading@10: if (stream) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: video_enc.strict_std_compliance = atoi(arg); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoBufferSize")) { yading@10: if (stream) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: video_enc.rc_buffer_size = atoi(arg) * 8*1024; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) { yading@10: if (stream) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: video_enc.bit_rate_tolerance = atoi(arg) * 1000; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoBitRate")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: video_enc.bit_rate = atoi(arg) * 1000; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoSize")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: av_parse_video_size(&video_enc.width, &video_enc.height, arg); yading@10: if ((video_enc.width % 16) != 0 || yading@10: (video_enc.height % 16) != 0) { yading@10: ERROR("Image size must be a multiple of 16\n"); yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoFrameRate")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: AVRational frame_rate; yading@10: if (av_parse_video_rate(&frame_rate, arg) < 0) { yading@10: ERROR("Incorrect frame rate: %s\n", arg); yading@10: } else { yading@10: video_enc.time_base.num = frame_rate.den; yading@10: video_enc.time_base.den = frame_rate.num; yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoGopSize")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: video_enc.gop_size = atoi(arg); yading@10: } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) { yading@10: if (stream) yading@10: video_enc.gop_size = 1; yading@10: } else if (!av_strcasecmp(cmd, "VideoHighQuality")) { yading@10: if (stream) yading@10: video_enc.mb_decision = FF_MB_DECISION_BITS; yading@10: } else if (!av_strcasecmp(cmd, "Video4MotionVector")) { yading@10: if (stream) { yading@10: video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove yading@10: video_enc.flags |= CODEC_FLAG_4MV; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "AVOptionVideo") || yading@10: !av_strcasecmp(cmd, "AVOptionAudio")) { yading@10: char arg2[1024]; yading@10: AVCodecContext *avctx; yading@10: int type; yading@10: get_arg(arg, sizeof(arg), &p); yading@10: get_arg(arg2, sizeof(arg2), &p); yading@10: if (!av_strcasecmp(cmd, "AVOptionVideo")) { yading@10: avctx = &video_enc; yading@10: type = AV_OPT_FLAG_VIDEO_PARAM; yading@10: } else { yading@10: avctx = &audio_enc; yading@10: type = AV_OPT_FLAG_AUDIO_PARAM; yading@10: } yading@10: if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) { yading@10: ERROR("AVOption error: %s %s\n", arg, arg2); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "AVPresetVideo") || yading@10: !av_strcasecmp(cmd, "AVPresetAudio")) { yading@10: AVCodecContext *avctx; yading@10: int type; yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (!av_strcasecmp(cmd, "AVPresetVideo")) { yading@10: avctx = &video_enc; yading@10: video_enc.codec_id = video_id; yading@10: type = AV_OPT_FLAG_VIDEO_PARAM; yading@10: } else { yading@10: avctx = &audio_enc; yading@10: audio_enc.codec_id = audio_id; yading@10: type = AV_OPT_FLAG_AUDIO_PARAM; yading@10: } yading@10: if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) { yading@10: ERROR("AVPreset error: %s\n", arg); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoTag")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if ((strlen(arg) == 4) && stream) yading@10: video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]); yading@10: } else if (!av_strcasecmp(cmd, "BitExact")) { yading@10: if (stream) yading@10: video_enc.flags |= CODEC_FLAG_BITEXACT; yading@10: } else if (!av_strcasecmp(cmd, "DctFastint")) { yading@10: if (stream) yading@10: video_enc.dct_algo = FF_DCT_FASTINT; yading@10: } else if (!av_strcasecmp(cmd, "IdctSimple")) { yading@10: if (stream) yading@10: video_enc.idct_algo = FF_IDCT_SIMPLE; yading@10: } else if (!av_strcasecmp(cmd, "Qscale")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: video_enc.flags |= CODEC_FLAG_QSCALE; yading@10: video_enc.global_quality = FF_QP2LAMBDA * atoi(arg); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoQDiff")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: video_enc.max_qdiff = atoi(arg); yading@10: if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) { yading@10: ERROR("VideoQDiff out of range\n"); yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoQMax")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: video_enc.qmax = atoi(arg); yading@10: if (video_enc.qmax < 1 || video_enc.qmax > 31) { yading@10: ERROR("VideoQMax out of range\n"); yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "VideoQMin")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: video_enc.qmin = atoi(arg); yading@10: if (video_enc.qmin < 1 || video_enc.qmin > 31) { yading@10: ERROR("VideoQMin out of range\n"); yading@10: } yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "LumiMask")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: video_enc.lumi_masking = atof(arg); yading@10: } else if (!av_strcasecmp(cmd, "DarkMask")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: video_enc.dark_masking = atof(arg); yading@10: } else if (!av_strcasecmp(cmd, "NoVideo")) { yading@10: video_id = AV_CODEC_ID_NONE; yading@10: } else if (!av_strcasecmp(cmd, "NoAudio")) { yading@10: audio_id = AV_CODEC_ID_NONE; yading@10: } else if (!av_strcasecmp(cmd, "ACL")) { yading@10: parse_acl_row(stream, feed, NULL, p, filename, line_num); yading@10: } else if (!av_strcasecmp(cmd, "DynamicACL")) { yading@10: if (stream) { yading@10: get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "RTSPOption")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: av_freep(&stream->rtsp_option); yading@10: stream->rtsp_option = av_strdup(arg); yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "MulticastAddress")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) { yading@10: if (resolve_host(&stream->multicast_ip, arg) != 0) { yading@10: ERROR("Invalid host/IP address: %s\n", arg); yading@10: } yading@10: stream->is_multicast = 1; yading@10: stream->loop = 1; /* default is looping */ yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "MulticastPort")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: stream->multicast_port = atoi(arg); yading@10: } else if (!av_strcasecmp(cmd, "MulticastTTL")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: if (stream) yading@10: stream->multicast_ttl = atoi(arg); yading@10: } else if (!av_strcasecmp(cmd, "NoLoop")) { yading@10: if (stream) yading@10: stream->loop = 0; yading@10: } else if (!av_strcasecmp(cmd, "")) { yading@10: if (!stream) { yading@10: ERROR("No corresponding for \n"); yading@10: } else { yading@10: if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) { yading@10: if (audio_id != AV_CODEC_ID_NONE) { yading@10: audio_enc.codec_type = AVMEDIA_TYPE_AUDIO; yading@10: audio_enc.codec_id = audio_id; yading@10: add_codec(stream, &audio_enc); yading@10: } yading@10: if (video_id != AV_CODEC_ID_NONE) { yading@10: video_enc.codec_type = AVMEDIA_TYPE_VIDEO; yading@10: video_enc.codec_id = video_id; yading@10: add_codec(stream, &video_enc); yading@10: } yading@10: } yading@10: stream = NULL; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "next; yading@10: yading@10: get_arg(redirect->filename, sizeof(redirect->filename), &p); yading@10: q = strrchr(redirect->filename, '>'); yading@10: if (*q) yading@10: *q = '\0'; yading@10: redirect->stream_type = STREAM_TYPE_REDIRECT; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "URL")) { yading@10: if (redirect) yading@10: get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p); yading@10: } else if (!av_strcasecmp(cmd, "")) { yading@10: if (!redirect) { yading@10: ERROR("No corresponding for \n"); yading@10: } else { yading@10: if (!redirect->feed_filename[0]) { yading@10: ERROR("No URL found for \n"); yading@10: } yading@10: redirect = NULL; yading@10: } yading@10: } else if (!av_strcasecmp(cmd, "LoadModule")) { yading@10: get_arg(arg, sizeof(arg), &p); yading@10: #if HAVE_DLOPEN yading@10: load_module(arg); yading@10: #else yading@10: ERROR("Module support not compiled into this version: '%s'\n", arg); yading@10: #endif yading@10: } else { yading@10: ERROR("Incorrect keyword: '%s'\n", cmd); yading@10: } yading@10: } yading@10: #undef ERROR yading@10: yading@10: fclose(f); yading@10: if (errors) yading@10: return -1; yading@10: else yading@10: return 0; yading@10: } yading@10: yading@10: static void handle_child_exit(int sig) yading@10: { yading@10: pid_t pid; yading@10: int status; yading@10: yading@10: while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { yading@10: FFStream *feed; yading@10: yading@10: for (feed = first_feed; feed; feed = feed->next) { yading@10: if (feed->pid == pid) { yading@10: int uptime = time(0) - feed->pid_start; yading@10: yading@10: feed->pid = 0; yading@10: fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime); yading@10: yading@10: if (uptime < 30) yading@10: /* Turn off any more restarts */ yading@10: feed->child_argv = 0; yading@10: } yading@10: } yading@10: } yading@10: yading@10: need_to_start_children = 1; yading@10: } yading@10: yading@10: static void opt_debug(void) yading@10: { yading@10: ffserver_debug = 1; yading@10: logfilename[0] = '-'; yading@10: } yading@10: yading@10: void show_help_default(const char *opt, const char *arg) yading@10: { yading@10: printf("usage: ffserver [options]\n" yading@10: "Hyper fast multi format Audio/Video streaming server\n"); yading@10: printf("\n"); yading@10: show_help_options(options, "Main options:", 0, 0, 0); yading@10: } yading@10: yading@10: static const OptionDef options[] = { yading@10: #include "cmdutils_common_opts.h" yading@10: { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" }, yading@10: { "d", 0, {(void*)opt_debug}, "enable debug mode" }, yading@10: { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" }, yading@10: { NULL }, yading@10: }; yading@10: yading@10: int main(int argc, char **argv) yading@10: { yading@10: struct sigaction sigact = { { 0 } }; yading@10: yading@10: parse_loglevel(argc, argv, options); yading@10: av_register_all(); yading@10: avformat_network_init(); yading@10: yading@10: show_banner(argc, argv, options); yading@10: yading@10: my_program_name = argv[0]; yading@10: yading@10: parse_options(NULL, argc, argv, options, NULL); yading@10: yading@10: if (!config_filename) yading@10: config_filename = av_strdup("/etc/ffserver.conf"); yading@10: yading@10: unsetenv("http_proxy"); /* Kill the http_proxy */ yading@10: yading@10: av_lfg_init(&random_state, av_get_random_seed()); yading@10: yading@10: sigact.sa_handler = handle_child_exit; yading@10: sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART; yading@10: sigaction(SIGCHLD, &sigact, 0); yading@10: yading@10: if (parse_ffconfig(config_filename) < 0) { yading@10: fprintf(stderr, "Incorrect config file - exiting.\n"); yading@10: exit(1); yading@10: } yading@10: av_freep(&config_filename); yading@10: yading@10: /* open log file if needed */ yading@10: if (logfilename[0] != '\0') { yading@10: if (!strcmp(logfilename, "-")) yading@10: logfile = stdout; yading@10: else yading@10: logfile = fopen(logfilename, "a"); yading@10: av_log_set_callback(http_av_log); yading@10: } yading@10: yading@10: build_file_streams(); yading@10: yading@10: build_feed_streams(); yading@10: yading@10: compute_bandwidth(); yading@10: yading@10: /* signal init */ yading@10: signal(SIGPIPE, SIG_IGN); yading@10: yading@10: if (http_server() < 0) { yading@10: http_log("Could not start server\n"); yading@10: exit(1); yading@10: } yading@10: yading@10: return 0; yading@10: }