[FFmpeg-cvslog] pixfmt: extend description for planar YUV 9/10 bits formats
Kirill Gavrilov
git at videolan.org
Mon Aug 12 18:17:51 CEST 2013
ffmpeg | branch: master | Kirill Gavrilov <kirill at sview.ru> | Mon Aug 12 19:29:35 2013 +0400| [53f309c617394c0c8d955ac907863590d268292b] | committer: Michael Niedermayer
pixfmt: extend description for planar YUV 9/10 bits formats
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=53f309c617394c0c8d955ac907863590d268292b
---
libavutil/pixfmt.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index d3d39ad..57da2a3 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -146,9 +146,11 @@ enum AVPixelFormat {
AV_PIX_FMT_BGR48BE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big-endian
AV_PIX_FMT_BGR48LE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as little-endian
- //the following 10 formats have the disadvantage of needing 1 format for each bit depth, thus
- //If you want to support multiple bit depths, then using AV_PIX_FMT_YUV420P16* with the bpp stored separately
- //is better
+ /**
+ * The following 12 formats have the disadvantage of needing 1 format for each bit depth.
+ * Notice that each 9/10 bits sample is stored in 16 bits with extra padding.
+ * If you want to support multiple bit depths, then using AV_PIX_FMT_YUV420P16* with the bpp stored separately is better.
+ */
AV_PIX_FMT_YUV420P9BE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
AV_PIX_FMT_YUV420P9LE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
AV_PIX_FMT_YUV420P10BE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
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