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Document the frames returned by the decoder better.

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Originally committed as revision 23456 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-06-03 21:53:41 +00:00
parent 4fff60841f
commit 3bc4e21b7b
1 changed files with 5 additions and 0 deletions
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5
libavcodec/avcodec.h
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@ -3501,6 +3501,11 @@ attribute_deprecated int avcodec_decode_video(AVCodecContext *avctx, AVFrame *pi
* @param[out] picture The AVFrame in which the decoded video frame will be stored.
* Use avcodec_alloc_frame to get an AVFrame, the codec will
* allocate memory for the actual bitmap.
* with default get/release_buffer(), the decoder frees/reuses the bitmap as it sees fit.
* with overridden get/release_buffer() the user decides into what buffer the decoder
* decodes and the decoder tells the user once it does not need the data anymore,
* the user app can at this point free/reuse/keep the memory as it sees fit.
*
* @param[in] avpkt The input AVpacket containing the input buffer.
* You can create such packet with av_init_packet() and by then setting
* data and size, some decoders might in addition need other fields like