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Support YV12 from video4linux2 devices.

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Reviewed-by: Luca Abeni
This commit is contained in:
Carl Eugen Hoyos 2012-02-05 20:06:12 +01:00
parent 42ae83c196
commit 5fa1a1d8fc
1 changed files with 3 additions and 0 deletions
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3
libavdevice/v4l2.c
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@ -108,6 +108,7 @@ struct fmt_map {
static struct fmt_map fmt_conversion_table[] = {
//ff_fmt codec_id v4l2_fmt
{ PIX_FMT_YUV420P, CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YUV420 },
{ PIX_FMT_YUV420P, CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YVU420 },
{ PIX_FMT_YUV422P, CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YUV422P },
{ PIX_FMT_YUYV422, CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YUYV },
{ PIX_FMT_UYVY422, CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_UYVY },
@ -793,6 +794,8 @@ static int v4l2_read_header(AVFormatContext *s1)
if (codec_id == CODEC_ID_RAWVIDEO)
st->codec->codec_tag =
avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
if (desired_format == V4L2_PIX_FMT_YVU420)
st->codec->codec_tag = MKTAG('Y', 'V', '1', '2');
st->codec->width = s->width;
st->codec->height = s->height;
st->codec->bit_rate = s->frame_size * 1/av_q2d(st->codec->time_base) * 8;