diff options
-rw-r--r-- | libavcodec/avcodec.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index c6e3b7d820..72db24642c 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -3303,12 +3303,20 @@ unsigned avcodec_get_edge_width(void); * Modifies width and height values so that they will result in a memory * buffer that is acceptable for the codec if you do not use any horizontal * padding. + * + * May only be used if a codec with CODEC_CAP_DR1 has been opened. + * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased + * according to avcodec_get_edge_width() before. */ void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height); /** * Modifies width and height values so that they will result in a memory * buffer that is acceptable for the codec if you also ensure that all * line sizes are a multiple of the respective linesize_align[i]. + * + * May only be used if a codec with CODEC_CAP_DR1 has been opened. + * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased + * according to avcodec_get_edge_width() before. */ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[4]); |