diff options
Diffstat (limited to 'libavutil/imgutils.h')
-rw-r--r-- | libavutil/imgutils.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libavutil/imgutils.h b/libavutil/imgutils.h index ab32d66..775baaa 100644 --- a/libavutil/imgutils.h +++ b/libavutil/imgutils.h @@ -29,6 +29,7 @@ #include "avutil.h" #include "pixdesc.h" +#include "rational.h" /** * Compute the max pixel step for each plane of an image with a @@ -190,6 +191,20 @@ int av_image_copy_to_buffer(uint8_t *dst, int dst_size, */ int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx); +/** + * Check if the given sample aspect ratio of an image is valid. + * + * It is considered invalid if the denominator is 0 or if applying the ratio + * to the image size would make the smaller dimension less than 1. If the + * sar numerator is 0, it is considered unknown and will return as valid. + * + * @param w width of the image + * @param h height of the image + * @param sar sample aspect ratio of the image + * @return 0 if valid, a negative AVERROR code otherwise + */ +int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar); + int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt); /** |