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libdc1394: add a framerate private option.

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This commit is contained in:
Anton Khirnov 2011-05-24 21:16:47 +02:00
parent 1556186a62
commit 121ef2e26d
1 changed files with 18 additions and 9 deletions
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27
libavdevice/libdc1394.c
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@ -60,9 +60,10 @@ typedef struct dc1394_data {
dc1394video_frame_t *frame;
#endif
int current_frame;
int fps;
int frame_rate; /**< frames per 1000 seconds (fps * 1000) */
char *video_size; /**< String describing video size, set by a private option. */
char *pixel_format; /**< Set by a private option. */
char *framerate; /**< Set by a private option. */
AVPacket packet;
} dc1394_data;
@ -102,6 +103,7 @@ static const AVOption options[] = {
#endif
{ "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
{ "pixel_format", "", OFFSET(pixel_format), FF_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
{ "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
{ NULL },
};
@ -122,7 +124,7 @@ static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
struct dc1394_frame_rate *fps;
enum PixelFormat pix_fmt;
int width, height;
int frame_rate = !ap->time_base.num ? 30000 : av_rescale(1000, ap->time_base.den, ap->time_base.num);
AVRational framerate;
int ret = 0;
if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == PIX_FMT_NONE) {
@ -135,6 +137,10 @@ static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
av_log(c, AV_LOG_ERROR, "Couldn't parse video size.\n");
goto out;
}
if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
av_log(c, AV_LOG_ERROR, "Couldn't parse framerate.\n");
goto out;
}
#if FF_API_FORMAT_PARAMETERS
if (ap->width > 0)
width = ap->width;
@ -142,19 +148,22 @@ static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
height = ap->height;
if (ap->pix_fmt)
pix_fmt = ap->pix_fmt;
if (ap->time_base.num)
framerate = (AVRational){ap->time_base.den, ap->time_base.num};
#endif
dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);
for (fmt = dc1394_frame_formats; fmt->width; fmt++)
if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
break;
for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
if (fps->frame_rate == frame_rate)
if (fps->frame_rate == dc1394->frame_rate)
break;
if (!fps->frame_rate || !fmt->width) {
av_log(c, AV_LOG_ERROR, "Can't find matching camera format for %s, %dx%d@%d:1000fps\n", avcodec_get_pix_fmt_name(pix_fmt),
width, height, frame_rate);
width, height, dc1394->frame_rate);
ret = AVERROR(EINVAL);
goto out;
}
@ -168,8 +177,8 @@ static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
av_set_pts_info(vst, 64, 1, 1000);
vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
vst->codec->codec_id = CODEC_ID_RAWVIDEO;
vst->codec->time_base.den = fps->frame_rate;
vst->codec->time_base.num = 1000;
vst->codec->time_base.den = framerate.num;
vst->codec->time_base.num = framerate.den;
vst->codec->width = fmt->width;
vst->codec->height = fmt->height;
vst->codec->pix_fmt = fmt->pix_fmt;
@ -181,7 +190,6 @@ static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
dc1394->packet.flags |= AV_PKT_FLAG_KEY;
dc1394->current_frame = 0;
dc1394->fps = fps->frame_rate;
vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
*select_fps = fps;
@ -189,6 +197,7 @@ static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
out:
av_freep(&dc1394->video_size);
av_freep(&dc1394->pixel_format);
av_freep(&dc1394->framerate);
return ret;
}
@ -267,7 +276,7 @@ static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
if (res == DC1394_SUCCESS) {
dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer);
dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->fps;
dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate;
res = dc1394->packet.size;
} else {
av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
@ -379,7 +388,7 @@ static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
if (res == DC1394_SUCCESS) {
dc1394->packet.data = (uint8_t *)(dc1394->frame->image);
dc1394->packet.pts = (dc1394->current_frame * 1000000) / (dc1394->fps);
dc1394->packet.pts = (dc1394->current_frame * 1000000) / (dc1394->frame_rate);
res = dc1394->frame->image_bytes;
} else {
av_log(c, AV_LOG_ERROR, "DMA capture failed\n");