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authorAndreas Rheinhardt <andreas.rheinhardt@gmail.com>2020-06-23 17:23:57 +0200
committerAndreas Rheinhardt <andreas.rheinhardt@gmail.com>2020-07-04 19:19:34 +0200
commit316dc0674eeb3419e560913ac9bc130b6dae919a (patch)
tree752e9c333192e1b72e764ff66cb41c5003f9b9f6 /libavcodec/golomb.c
parent2f687bc83e87cd289fafcebd026fe7f586f86332 (diff)
downloadffmpeg-316dc0674eeb3419e560913ac9bc130b6dae919a.tar.gz
avformat/smacker: Stop caching and copying audio frames
The layout of a Smacker frame is as follows: For some frames, the beginning of the frame contained a palette for the video stream; then there are potentially several audio frames, followed by the data for the video stream. The Smacker demuxer used to read the palette, then cache every audio frame into a buffer (that gets reallocated to the desired size every time a frame is read into this buffer), then read and return the video frame (together with the palette). The cached audio frames are then returned by copying the data into freshly allocated buffers; if there are none left, the next frame is read. This commit changes this: At the beginning of a frame, the palette is read and cached as now. But audio frames are no longer cached at all; they are returned immediately. This gets rid of copying and also allows to remove the code for the buffer-to-AVStream correspondence. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Diffstat (limited to 'libavcodec/golomb.c')
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