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Document CODEC_FLAG_EMU_EDGE and avcodec_align_dimensions interaction.

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Originally committed as revision 23258 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2010-05-23 15:34:39 +00:00
parent 944a1b6b96
commit 6d9b7a7dab
1 changed files with 8 additions and 0 deletions
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8
libavcodec/avcodec.h
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@ -3316,12 +3316,20 @@ 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]);