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lavd/v4l2: Add ARGB and XRGB packed pixel formats

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Formats ARGB32, XRGB32, ABGR32, and XBGR32 were added to V4L2 instead
of ill-defined deprecated RGB32/BGR32 pixel formats.

When pixel format is not specified explicitly FFmpeg tries formats in
order in which they are stored in the table. Therefore formats are
sorted as follows: BGR is preferred over RGB and XBGR is preferred
over ARGB, because it could give better performance by ignoring alpha
component.
This commit is contained in:
Anton Leontiev 2018-05-10 18:31:20 +03:00 committed by Carl Eugen Hoyos
parent 0612e29b59
commit 9481802539
1 changed files with 6 additions and 0 deletions
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6
libavdevice/v4l2-common.c
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@ -34,6 +34,12 @@ const struct fmt_map ff_fmt_conversion_table[] = {
{ AV_PIX_FMT_RGB565BE,AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB565X },
{ AV_PIX_FMT_BGR24, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_BGR24 },
{ AV_PIX_FMT_RGB24, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB24 },
#ifdef V4L2_PIX_FMT_XBGR32
{ AV_PIX_FMT_BGR0, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_XBGR32 },
{ AV_PIX_FMT_0RGB, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_XRGB32 },
{ AV_PIX_FMT_BGRA, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_ABGR32 },
{ AV_PIX_FMT_ARGB, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_ARGB32 },
#endif
{ AV_PIX_FMT_BGR0, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_BGR32 },
{ AV_PIX_FMT_0RGB, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB32 },
{ AV_PIX_FMT_GRAY8, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_GREY },