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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-11-14 11:22:40 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-11-14 11:59:20 +0100 |
| commit | e13d5e9a4b5b4de065b00b1caea850cd47fd4b18 (patch) | |
| tree | 13bf2f01763823c4e4da6374acadc95b3f8bc121 /libavutil | |
| parent | 26afdbcfc0ecd646c6d829b781e0a53d6b289186 (diff) | |
| parent | 5e9c6ef8f3beb9ed7b271654a82349ac90fe43f2 (diff) | |
| download | ffmpeg-e13d5e9a4b5b4de065b00b1caea850cd47fd4b18.tar.gz | |
Merge commit '5e9c6ef8f3beb9ed7b271654a82349ac90fe43f2'
* commit '5e9c6ef8f3beb9ed7b271654a82349ac90fe43f2':
x86: h264_weight_10bit: port to cpuflags
libtheoraenc: add missing pixdesc.h header
avcodec: remove ff_is_hwaccel_pix_fmt
pixdesc: add av_pix_fmt_get_chroma_sub_sample
hlsenc: stand alone hls segmenter
Conflicts:
doc/muxers.texi
libavcodec/ffv1enc.c
libavcodec/imgconvert.c
libavcodec/mpegvideo_enc.c
libavcodec/tiffenc.c
libavformat/Makefile
libavformat/allformats.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil')
| -rw-r--r-- | libavutil/pixdesc.c | 12 | ||||
| -rw-r--r-- | libavutil/pixdesc.h | 14 |
2 files changed, 26 insertions, 0 deletions
diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c index 6ee7024d24..bbe64bee7a 100644 --- a/libavutil/pixdesc.c +++ b/libavutil/pixdesc.c @@ -1749,3 +1749,15 @@ enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc) return desc - av_pix_fmt_descriptors; } + +int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, + int *h_shift, int *v_shift) +{ + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); + if (!desc) + return AVERROR(ENOSYS); + *h_shift = desc->log2_chroma_w; + *v_shift = desc->log2_chroma_h; + + return 0; +} diff --git a/libavutil/pixdesc.h b/libavutil/pixdesc.h index ccbee9b2f1..d4e8766132 100644 --- a/libavutil/pixdesc.h +++ b/libavutil/pixdesc.h @@ -206,4 +206,18 @@ const AVPixFmtDescriptor *av_pix_fmt_desc_next(const AVPixFmtDescriptor *prev); */ enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc); +/** + * Utility function to access log2_chroma_w log2_chroma_h from + * the pixel format AVPixFmtDescriptor. + * + * @param[in] pix_fmt the pixel format + * @param[out] h_shift store log2_chroma_h + * @param[out] v_shift store log2_chroma_w + * + * @return 0 on success, AVERROR(ENOSYS) on invalid or unknown pixel format + */ +int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, + int *h_shift, int *v_shift); + + #endif /* AVUTIL_PIXDESC_H */ |