From c1a02e884ac785033baab356a5437adf057a4189 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Mon, 12 Nov 2012 01:25:43 +0100 Subject: pixdesc: add av_pix_fmt_get_chroma_sub_sample Deprecate avcodec_get_chroma_sub_sample. --- libavutil/pixdesc.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'libavutil/pixdesc.h') diff --git a/libavutil/pixdesc.h b/libavutil/pixdesc.h index 7da17bcf12..a944c66dd3 100644 --- a/libavutil/pixdesc.h +++ b/libavutil/pixdesc.h @@ -203,4 +203,18 @@ 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 */ -- cgit v1.2.3