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avcodec: doxy: Clarify what get_buffer2 must fill in buf[]

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Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
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Derek Buitenhuis 2013-04-28 22:13:21 -04:00
parent e926b5ceb1
commit 4cdb3c50b5
1 changed files with 5 additions and 2 deletions
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7
libavcodec/avcodec.h
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@ -1920,8 +1920,11 @@ typedef struct AVCodecContext {
* extended_data must be allocated with av_malloc() and will be freed in * extended_data must be allocated with av_malloc() and will be freed in
* av_frame_unref(). * av_frame_unref().
* * otherwise exended_data must point to data * * otherwise exended_data must point to data
* - buf[] must contain references to the buffers that contain the frame * - buf[] must contain one or more pointers to AVBufferRef structures. Each of
* data. * the frame's data and extended_data pointers must be contained in these. That
* is, one AVBufferRef for each allocated chunk of memory, not necessarily one
* AVBufferRef per data[] entry. See: av_buffer_create(), av_buffer_alloc(),
* and av_buffer_ref().
* - extended_buf and nb_extended_buf must be allocated with av_malloc() by * - extended_buf and nb_extended_buf must be allocated with av_malloc() by
* this callback and filled with the extra buffers if there are more * this callback and filled with the extra buffers if there are more
* buffers than buf[] can hold. extended_buf will be freed in * buffers than buf[] can hold. extended_buf will be freed in