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Clarify (re)get_buffer() and CODEC_CAP_DR1 relation.

Originally committed as revision 19132 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-06-07 19:30:54 +00:00
parent 1e15e5366f
commit f1b99cc63b

View File

@ -1331,6 +1331,9 @@ typedef struct AVCodecContext {
* If pic.reference is set then the frame will be read later by libavcodec.
* avcodec_align_dimensions() should be used to find the required width and
* height, as they normally need to be rounded up to the next multiple of 16.
* if CODEC_CAP_DR1 is not set then get_buffer() must call
* avcodec_default_get_buffer() instead of providing buffers allocated by
* some other means.
* - encoding: unused
* - decoding: Set by libavcodec., user can override.
*/
@ -1959,6 +1962,9 @@ typedef struct AVCodecContext {
* libavcodec will pass previous buffer in pic, function should return
* same buffer or new buffer with old frame "painted" into it.
* If pic.data[0] == NULL must behave like get_buffer().
* if CODEC_CAP_DR1 is not set then reget_buffer() must call
* avcodec_default_reget_buffer() instead of providing buffers allocated by
* some other means.
* - encoding: unused
* - decoding: Set by libavcodec., user can override
*/