diff options
Diffstat (limited to 'video/img_format.c')
-rw-r--r-- | video/img_format.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/video/img_format.c b/video/img_format.c index 9f7bf32779..92851c0339 100644 --- a/video/img_format.c +++ b/video/img_format.c @@ -19,6 +19,7 @@ #include <assert.h> #include <string.h> +#include <libavcodec/avcodec.h> #include <libavutil/pixfmt.h> #include <libavutil/pixdesc.h> @@ -263,6 +264,23 @@ int mp_imgfmt_find_yuv_planar(int xs, int ys, int planes, int component_bits) return 0; } +#if LIBAVUTIL_VERSION_MICRO < 100 +#define avcodec_find_best_pix_fmt_of_list avcodec_find_best_pix_fmt2 +#endif + +// Compare the dst image formats, and return the one which can carry more data +// (e.g. higher depth, more color components, lower chroma subsampling, etc.), +// with respect to what is required to keep most of the src format. +// Returns the imgfmt, or 0 on error. +int mp_imgfmt_select_best(int dst1, int dst2, int src) +{ + enum AVPixelFormat dst1pxf = imgfmt2pixfmt(dst1); + enum AVPixelFormat dst2pxf = imgfmt2pixfmt(dst2); + enum AVPixelFormat srcpxf = imgfmt2pixfmt(src); + enum AVPixelFormat dstlist[] = {dst1pxf, dst2pxf, AV_PIX_FMT_NONE}; + return pixfmt2imgfmt(avcodec_find_best_pix_fmt_of_list(dstlist, srcpxf, 0, 0)); +} + #if 0 #include <libavutil/frame.h> |