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| author | Michael Niedermayer <michaelni@gmx.at> | 2005-04-15 13:24:30 +0000 |
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| committer | Michael Niedermayer <michaelni@gmx.at> | 2005-04-15 13:24:30 +0000 |
| commit | b44985ba12d927d643a7bc03b0db98b83bf4fc9e (patch) | |
| tree | 44e1461b5c2e62ce81a5be6402cb92262a1ec4a6 /INSTALL | |
| parent | 2cd340438abc02fc3c4214b2a22ebbdd0affa7cd (diff) | |
| download | ffmpeg-b44985ba12d927d643a7bc03b0db98b83bf4fc9e.tar.gz | |
store the number of runs to avoid storing the last run value
about 10% lower bitrate for -qscale 32 (forman & some music video)
worst case bitrate increase <0.1% (lossless or low qscale)
and now the bad news, even though this just adds a single subtraction and an if() into the medium sized unpack_coeffs() loop and the if() will only be false once per unpac_coeff() call, gcc produces 50% slower code, i didnt look at the generated asm yet, not sure if i want to ...
Originally committed as revision 4131 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'INSTALL')
0 files changed, 0 insertions, 0 deletions