yading@11: /*
yading@11:  * Copyright (c) 2013 Nicolas George
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public License
yading@11:  * as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
yading@11:  * GNU Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public License
yading@11:  * along with FFmpeg; if not, write to the Free Software Foundation, Inc.,
yading@11:  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: #include <unistd.h>
yading@11: 
yading@11: #include "config.h"
yading@11: #if HAVE_UNISTD_H
yading@11: #include <unistd.h>             /* getopt */
yading@11: #endif
yading@11: 
yading@11: #include "libavformat/avformat.h"
yading@11: #include "libavutil/timestamp.h"
yading@11: 
yading@11: #if !HAVE_GETOPT
yading@11: #include "compat/getopt.c"
yading@11: #endif
yading@11: 
yading@11: static void usage(int ret)
yading@11: {
yading@11:     fprintf(ret ? stderr : stdout,
yading@11:             "Usage: seek_print file [command ...]\n"
yading@11:             "Commands:\n"
yading@11:             "    read\n"
yading@11:             "    seek:stream:min_ts:ts:max_ts:flags\n"
yading@11:             );
yading@11:     exit(ret);
yading@11: }
yading@11: 
yading@11: int main(int argc, char **argv)
yading@11: {
yading@11:     int opt, ret, stream, flags;
yading@11:     const char *filename;
yading@11:     AVFormatContext *avf = NULL;
yading@11:     int64_t min_ts, max_ts, ts;
yading@11:     AVPacket packet;
yading@11: 
yading@11:     while ((opt = getopt(argc, argv, "h")) != -1) {
yading@11:         switch (opt) {
yading@11:         case 'h':
yading@11:             usage(0);
yading@11:         default:
yading@11:             usage(1);
yading@11:         }
yading@11:     }
yading@11:     argc -= optind;
yading@11:     argv += optind;
yading@11:     if (!argc)
yading@11:         usage(1);
yading@11:     filename = *argv;
yading@11:     argv++;
yading@11:     argc--;
yading@11: 
yading@11:     av_register_all();
yading@11:     if ((ret = avformat_open_input(&avf, filename, NULL, NULL)) < 0) {
yading@11:         fprintf(stderr, "%s: %s\n", filename, av_err2str(ret));
yading@11:         return 1;
yading@11:     }
yading@11:     if ((ret = avformat_find_stream_info(avf, NULL)) < 0) {
yading@11:         fprintf(stderr, "%s: could not find codec parameters: %s\n", filename,
yading@11:                 av_err2str(ret));
yading@11:         return 1;
yading@11:     }
yading@11: 
yading@11:     for (; argc; argc--, argv++) {
yading@11:         if (!strcmp(*argv, "read")) {
yading@11:             ret = av_read_frame(avf, &packet);
yading@11:             if (ret < 0) {
yading@11:                 printf("read: %d (%s)\n", ret, av_err2str(ret));
yading@11:             } else {
yading@11:                 AVRational *tb = &avf->streams[packet.stream_index]->time_base;
yading@11:                 printf("read: %d size=%d stream=%d dts=%s (%s) pts=%s (%s)\n",
yading@11:                        ret, packet.size, packet.stream_index,
yading@11:                        av_ts2str(packet.dts), av_ts2timestr(packet.dts, tb),
yading@11:                        av_ts2str(packet.pts), av_ts2timestr(packet.pts, tb));
yading@11:                 av_free_packet(&packet);
yading@11:             }
yading@11:         } else if (sscanf(*argv, "seek:%i:%"SCNi64":%"SCNi64":%"SCNi64":%i",
yading@11:                    &stream, &min_ts, &ts, &max_ts, &flags) == 5) {
yading@11:             ret = avformat_seek_file(avf, stream, min_ts, ts, max_ts, flags);
yading@11:             printf("seek: %d (%s)\n", ret, av_err2str(ret));
yading@11:         } else {
yading@11:             fprintf(stderr, "'%s': unknown command\n", *argv);
yading@11:             return 1;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     avformat_close_input(&avf);
yading@11: 
yading@11:     return 0;
yading@11: }