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authorAndreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>2015-07-09 19:50:34 +0200
committerAndreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>2015-07-19 10:01:18 +0200
commit26cb351452e76dc4a61028f277cf11b8d7abd74b (patch)
treee07bed7d4cac9f1ec1a6e8cc4ae3661ebcdb012b /libavcodec/h264idct.h
parent762a5878a6b0bef923ef97c15fdb8274a0351278 (diff)
downloadffmpeg-26cb351452e76dc4a61028f277cf11b8d7abd74b.tar.gz
snow: remove an obsolete av_assert2
It asserts that the frame linesize is larger than 37, but it can be smaller and decoding such frames works. Before commit cc884a35 src_stride > 7*MB_SIZE was necessary, because the blocks were interleaved in the tmp buffer and the last block was added with an offset of 6*MB_SIZE. It was changed for src_stride <= 7*MB_SIZE to write the blocks sequentially, hence the larger tmp_step. After that the assert was only necessary to make sure that the buffer remained large enough. Since commit bd2b6b33 s->scratchbuf is used as tmp buffer. As part of commit 86e107a7 the minimal scratchbuf size was increased to 256*7*MB_SIZE, which is enough for any src_stride <= 7*MB_SIZE. Also add a comment explaining the tmp_step calculation. Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> (cherry picked from commit 3526a120f92929cb0a4009e403ee2f141030c487) Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Diffstat (limited to 'libavcodec/h264idct.h')
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