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| author | Mike Melanson <mike@multimedia.cx> | 2009-09-22 15:58:08 +0000 |
|---|---|---|
| committer | Mike Melanson <mike@multimedia.cx> | 2009-09-22 15:58:08 +0000 |
| commit | 138fe832152d4b30528933ca681b39831dd94569 (patch) | |
| tree | b34b3d32f0fed9ff232d0f984e1d3ea5bf99d869 /libavcodec/atrac1.c | |
| parent | 71e4218054c7547f17864a9e6c8ba9306cbdd391 (diff) | |
Perform the DC prediction reversal immediately after decoding all of
the DC coefficients. This has a greater probability of leveraging the
coefficients while they are still cached.
When testing with the Big Buck Bunny 1080p video, I consistently saw
improvements of 500k-600k dezicycles per run (through
reverse_dc_prediction()) thanks to this move.
Originally committed as revision 19966 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/atrac1.c')
0 files changed, 0 insertions, 0 deletions