yading@10: /* yading@10: * IIDC1394 grab interface (uses libdc1394 and libraw1394) yading@10: * Copyright (c) 2004 Roman Shaposhnik yading@10: * Copyright (c) 2008 Alessandro Sappia 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: #include "config.h" yading@10: #include "libavformat/avformat.h" yading@10: #include "libavformat/internal.h" yading@10: #include "libavutil/log.h" yading@10: #include "libavutil/mathematics.h" yading@10: #include "libavutil/opt.h" yading@10: #include "libavutil/parseutils.h" yading@10: #include "libavutil/pixdesc.h" yading@10: yading@10: #if HAVE_LIBDC1394_2 yading@10: #include yading@10: #elif HAVE_LIBDC1394_1 yading@10: #include yading@10: #include yading@10: yading@10: #define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422 yading@10: #define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411 yading@10: #define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422 yading@10: #define DC1394_FRAMERATE_1_875 FRAMERATE_1_875 yading@10: #define DC1394_FRAMERATE_3_75 FRAMERATE_3_75 yading@10: #define DC1394_FRAMERATE_7_5 FRAMERATE_7_5 yading@10: #define DC1394_FRAMERATE_15 FRAMERATE_15 yading@10: #define DC1394_FRAMERATE_30 FRAMERATE_30 yading@10: #define DC1394_FRAMERATE_60 FRAMERATE_60 yading@10: #define DC1394_FRAMERATE_120 FRAMERATE_120 yading@10: #define DC1394_FRAMERATE_240 FRAMERATE_240 yading@10: #endif yading@10: yading@10: typedef struct dc1394_data { yading@10: AVClass *class; yading@10: #if HAVE_LIBDC1394_1 yading@10: raw1394handle_t handle; yading@10: dc1394_cameracapture camera; yading@10: int channel; yading@10: #elif HAVE_LIBDC1394_2 yading@10: dc1394_t *d; yading@10: dc1394camera_t *camera; yading@10: dc1394video_frame_t *frame; yading@10: #endif yading@10: int current_frame; yading@10: int frame_rate; /**< frames per 1000 seconds (fps * 1000) */ yading@10: char *video_size; /**< String describing video size, set by a private option. */ yading@10: char *pixel_format; /**< Set by a private option. */ yading@10: char *framerate; /**< Set by a private option. */ yading@10: yading@10: AVPacket packet; yading@10: } dc1394_data; yading@10: yading@10: struct dc1394_frame_format { yading@10: int width; yading@10: int height; yading@10: enum AVPixelFormat pix_fmt; yading@10: int frame_size_id; yading@10: } dc1394_frame_formats[] = { yading@10: { 320, 240, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 }, yading@10: { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 }, yading@10: { 640, 480, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 }, yading@10: { 0, 0, 0, 0 } /* gotta be the last one */ yading@10: }; yading@10: yading@10: struct dc1394_frame_rate { yading@10: int frame_rate; yading@10: int frame_rate_id; yading@10: } dc1394_frame_rates[] = { yading@10: { 1875, DC1394_FRAMERATE_1_875 }, yading@10: { 3750, DC1394_FRAMERATE_3_75 }, yading@10: { 7500, DC1394_FRAMERATE_7_5 }, yading@10: { 15000, DC1394_FRAMERATE_15 }, yading@10: { 30000, DC1394_FRAMERATE_30 }, yading@10: { 60000, DC1394_FRAMERATE_60 }, yading@10: {120000, DC1394_FRAMERATE_120 }, yading@10: {240000, DC1394_FRAMERATE_240 }, yading@10: { 0, 0 } /* gotta be the last one */ yading@10: }; yading@10: yading@10: #define OFFSET(x) offsetof(dc1394_data, x) yading@10: #define DEC AV_OPT_FLAG_DECODING_PARAM yading@10: static const AVOption options[] = { yading@10: #if HAVE_LIBDC1394_1 yading@10: { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, yading@10: #endif yading@10: { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC }, yading@10: { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC }, yading@10: { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC }, yading@10: { NULL }, yading@10: }; yading@10: yading@10: static const AVClass libdc1394_class = { yading@10: .class_name = "libdc1394 indev", yading@10: .item_name = av_default_item_name, yading@10: .option = options, yading@10: .version = LIBAVUTIL_VERSION_INT, yading@10: }; yading@10: yading@10: yading@10: static inline int dc1394_read_common(AVFormatContext *c, yading@10: struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps) yading@10: { yading@10: dc1394_data* dc1394 = c->priv_data; yading@10: AVStream* vst; yading@10: struct dc1394_frame_format *fmt; yading@10: struct dc1394_frame_rate *fps; yading@10: enum AVPixelFormat pix_fmt; yading@10: int width, height; yading@10: AVRational framerate; yading@10: int ret = 0; yading@10: yading@10: if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) { yading@10: av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format); yading@10: ret = AVERROR(EINVAL); yading@10: goto out; yading@10: } yading@10: yading@10: if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) { yading@10: av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size); yading@10: goto out; yading@10: } yading@10: if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) { yading@10: av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate); yading@10: goto out; yading@10: } yading@10: dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den); yading@10: yading@10: for (fmt = dc1394_frame_formats; fmt->width; fmt++) yading@10: if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height) yading@10: break; yading@10: yading@10: for (fps = dc1394_frame_rates; fps->frame_rate; fps++) yading@10: if (fps->frame_rate == dc1394->frame_rate) yading@10: break; yading@10: yading@10: if (!fps->frame_rate || !fmt->width) { yading@10: av_log(c, AV_LOG_ERROR, "Can't find matching camera format for %s, %dx%d@%d:1000fps\n", av_get_pix_fmt_name(pix_fmt), yading@10: width, height, dc1394->frame_rate); yading@10: ret = AVERROR(EINVAL); yading@10: goto out; yading@10: } yading@10: yading@10: /* create a video stream */ yading@10: vst = avformat_new_stream(c, NULL); yading@10: if (!vst) { yading@10: ret = AVERROR(ENOMEM); yading@10: goto out; yading@10: } yading@10: avpriv_set_pts_info(vst, 64, 1, 1000); yading@10: vst->codec->codec_type = AVMEDIA_TYPE_VIDEO; yading@10: vst->codec->codec_id = AV_CODEC_ID_RAWVIDEO; yading@10: vst->codec->time_base.den = framerate.num; yading@10: vst->codec->time_base.num = framerate.den; yading@10: vst->codec->width = fmt->width; yading@10: vst->codec->height = fmt->height; yading@10: vst->codec->pix_fmt = fmt->pix_fmt; yading@10: yading@10: /* packet init */ yading@10: av_init_packet(&dc1394->packet); yading@10: dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height); yading@10: dc1394->packet.stream_index = vst->index; yading@10: dc1394->packet.flags |= AV_PKT_FLAG_KEY; yading@10: yading@10: dc1394->current_frame = 0; yading@10: yading@10: vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000); yading@10: *select_fps = fps; yading@10: *select_fmt = fmt; yading@10: out: yading@10: return ret; yading@10: } yading@10: yading@10: #if HAVE_LIBDC1394_1 yading@10: static int dc1394_v1_read_header(AVFormatContext *c) yading@10: { yading@10: dc1394_data* dc1394 = c->priv_data; yading@10: AVStream* vst; yading@10: nodeid_t* camera_nodes; yading@10: int res; yading@10: struct dc1394_frame_format *fmt = NULL; yading@10: struct dc1394_frame_rate *fps = NULL; yading@10: yading@10: if (dc1394_read_common(c, &fmt, &fps) != 0) yading@10: return -1; yading@10: yading@10: /* Now let us prep the hardware. */ yading@10: dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */ yading@10: if (!dc1394->handle) { yading@10: av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */); yading@10: goto out; yading@10: } yading@10: camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1); yading@10: if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) { yading@10: av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel); yading@10: goto out_handle; yading@10: } yading@10: res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel], yading@10: 0, yading@10: FORMAT_VGA_NONCOMPRESSED, yading@10: fmt->frame_size_id, yading@10: SPEED_400, yading@10: fps->frame_rate_id, 8, 1, yading@10: c->filename, yading@10: &dc1394->camera); yading@10: dc1394_free_camera_nodes(camera_nodes); yading@10: if (res != DC1394_SUCCESS) { yading@10: av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n"); yading@10: goto out_handle; yading@10: } yading@10: yading@10: res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node); yading@10: if (res != DC1394_SUCCESS) { yading@10: av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n"); yading@10: goto out_handle_dma; yading@10: } yading@10: yading@10: return 0; yading@10: yading@10: out_handle_dma: yading@10: dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); yading@10: dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); yading@10: out_handle: yading@10: dc1394_destroy_handle(dc1394->handle); yading@10: out: yading@10: return -1; yading@10: } yading@10: yading@10: static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt) yading@10: { yading@10: struct dc1394_data *dc1394 = c->priv_data; yading@10: int res; yading@10: yading@10: /* discard stale frame */ yading@10: if (dc1394->current_frame++) { yading@10: if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS) yading@10: av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); yading@10: } yading@10: yading@10: res = dc1394_dma_single_capture(&dc1394->camera); yading@10: yading@10: if (res == DC1394_SUCCESS) { yading@10: dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer); yading@10: dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate; yading@10: res = dc1394->packet.size; yading@10: } else { yading@10: av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); yading@10: dc1394->packet.data = NULL; yading@10: res = -1; yading@10: } yading@10: yading@10: *pkt = dc1394->packet; yading@10: return res; yading@10: } yading@10: yading@10: static int dc1394_v1_close(AVFormatContext * context) yading@10: { yading@10: struct dc1394_data *dc1394 = context->priv_data; yading@10: yading@10: dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node); yading@10: dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); yading@10: dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); yading@10: dc1394_destroy_handle(dc1394->handle); yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: #elif HAVE_LIBDC1394_2 yading@10: static int dc1394_v2_read_header(AVFormatContext *c) yading@10: { yading@10: dc1394_data* dc1394 = c->priv_data; yading@10: dc1394camera_list_t *list; yading@10: int res, i; yading@10: struct dc1394_frame_format *fmt = NULL; yading@10: struct dc1394_frame_rate *fps = NULL; yading@10: yading@10: if (dc1394_read_common(c, &fmt, &fps) != 0) yading@10: return -1; yading@10: yading@10: /* Now let us prep the hardware. */ yading@10: dc1394->d = dc1394_new(); yading@10: dc1394_camera_enumerate (dc1394->d, &list); yading@10: if ( !list || list->num == 0) { yading@10: av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n"); yading@10: goto out; yading@10: } yading@10: yading@10: /* FIXME: To select a specific camera I need to search in list its guid */ yading@10: dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid); yading@10: if (list->num > 1) { yading@10: av_log(c, AV_LOG_INFO, "Working with the first camera found\n"); yading@10: } yading@10: yading@10: /* Freeing list of cameras */ yading@10: dc1394_camera_free_list (list); yading@10: yading@10: /* Select MAX Speed possible from the cam */ yading@10: if (dc1394->camera->bmode_capable>0) { yading@10: dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B); yading@10: i = DC1394_ISO_SPEED_800; yading@10: } else { yading@10: i = DC1394_ISO_SPEED_400; yading@10: } yading@10: yading@10: for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) { yading@10: res=dc1394_video_set_iso_speed(dc1394->camera, i); yading@10: } yading@10: if (res != DC1394_SUCCESS) { yading@10: av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n"); yading@10: goto out_camera; yading@10: } yading@10: yading@10: if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) { yading@10: av_log(c, AV_LOG_ERROR, "Couldn't set video format\n"); yading@10: goto out_camera; yading@10: } yading@10: yading@10: if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) { yading@10: av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate); yading@10: goto out_camera; yading@10: } yading@10: if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) { yading@10: av_log(c, AV_LOG_ERROR, "Cannot setup camera \n"); yading@10: goto out_camera; yading@10: } yading@10: yading@10: if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) { yading@10: av_log(c, AV_LOG_ERROR, "Cannot start capture\n"); yading@10: goto out_camera; yading@10: } yading@10: return 0; yading@10: yading@10: out_camera: yading@10: dc1394_capture_stop(dc1394->camera); yading@10: dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); yading@10: dc1394_camera_free (dc1394->camera); yading@10: out: yading@10: dc1394_free(dc1394->d); yading@10: return -1; yading@10: } yading@10: yading@10: static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt) yading@10: { yading@10: struct dc1394_data *dc1394 = c->priv_data; yading@10: int res; yading@10: yading@10: /* discard stale frame */ yading@10: if (dc1394->current_frame++) { yading@10: if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS) yading@10: av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); yading@10: } yading@10: yading@10: res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame); yading@10: if (res == DC1394_SUCCESS) { yading@10: dc1394->packet.data = (uint8_t *) dc1394->frame->image; yading@10: dc1394->packet.pts = dc1394->current_frame * 1000000 / dc1394->frame_rate; yading@10: res = dc1394->frame->image_bytes; yading@10: } else { yading@10: av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); yading@10: dc1394->packet.data = NULL; yading@10: res = -1; yading@10: } yading@10: yading@10: *pkt = dc1394->packet; yading@10: return res; yading@10: } yading@10: yading@10: static int dc1394_v2_close(AVFormatContext * context) yading@10: { yading@10: struct dc1394_data *dc1394 = context->priv_data; yading@10: yading@10: dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); yading@10: dc1394_capture_stop(dc1394->camera); yading@10: dc1394_camera_free(dc1394->camera); yading@10: dc1394_free(dc1394->d); yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: AVInputFormat ff_libdc1394_demuxer = { yading@10: .name = "libdc1394", yading@10: .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"), yading@10: .priv_data_size = sizeof(struct dc1394_data), yading@10: .read_header = dc1394_v2_read_header, yading@10: .read_packet = dc1394_v2_read_packet, yading@10: .read_close = dc1394_v2_close, yading@10: .flags = AVFMT_NOFILE, yading@10: .priv_class = &libdc1394_class, yading@10: }; yading@10: yading@10: #endif yading@10: #if HAVE_LIBDC1394_1 yading@10: AVInputFormat ff_libdc1394_demuxer = { yading@10: .name = "libdc1394", yading@10: .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"), yading@10: .priv_data_size = sizeof(struct dc1394_data), yading@10: .read_header = dc1394_v1_read_header, yading@10: .read_packet = dc1394_v1_read_packet, yading@10: .read_close = dc1394_v1_close, yading@10: .flags = AVFMT_NOFILE, yading@10: .priv_class = &libdc1394_class, yading@10: }; yading@10: #endif