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Commit Graph

124 Commits

Author SHA1 Message Date
Michael Niedermayer
39c61bbbd3 cleanup
Originally committed as revision 3425 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-28 14:24:48 +00:00
Michael Niedermayer
fff6d4ea4e 10l
more benchmarking code
inline

Originally committed as revision 3424 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-28 14:08:50 +00:00
Michael Niedermayer
ea7d9cd4bc merge decode_subband() and dequantize()
Originally committed as revision 3422 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-27 21:16:51 +00:00
Michael Niedermayer
ff76515933 11% faster decode_subband()
Originally committed as revision 3421 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-27 20:33:16 +00:00
Michael Niedermayer
0cea8a037c 5% faster decode_subband()
a little cleanup

Originally committed as revision 3420 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-27 20:15:32 +00:00
Michael Niedermayer
7b49c30974 46% faster decode_subband()
Originally committed as revision 3419 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-27 19:52:32 +00:00
Michael Niedermayer
3c1adccd1c 50% faster decode_subband()
Originally committed as revision 3418 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-27 01:06:58 +00:00
Michael Niedermayer
155ec6edf8 quad tree based motion compensation (currently only 16x16 & 8x8 OBMC blocks, but can be extended to other block sizes easily)
different intra block coding (previous was just an ugly hack)
1.8% bitrate reduction -0.01PSNR (foreman@352x288 qscale=8)
1.5% bitrate reduction +0.05PSNR (foreman@352x288 qscale=1)

Originally committed as revision 3416 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-26 20:04:54 +00:00
Michael Niedermayer
64886072f5 edge bugfix
1-1.3% lower bitrate and +0.01 PSNR (foremen@352x288 qscale=1,8)

Originally committed as revision 3414 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-25 00:26:01 +00:00
Michael Niedermayer
46c281e8c1 cleanup
Originally committed as revision 3377 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-03 02:34:50 +00:00
Michael Niedermayer
93fbdb5ac5 lossless support
Originally committed as revision 3374 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-02 19:09:28 +00:00
Michael Niedermayer
3bb9f096d4 cleanup
Originally committed as revision 3373 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-02 18:01:03 +00:00
Michael Niedermayer
0635cbfc32 improved magnitude coding, 0.2% lower bitrate (foreman@352x288 qscale 1 and 8)
Originally committed as revision 3372 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-02 17:53:57 +00:00
Michael Niedermayer
bc68bfdde0 cleanup
Originally committed as revision 3367 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-02 01:06:55 +00:00
Michael Niedermayer
4f4e963383 various subband encoders (all either worse or complicated so they are commented out)
different 0-context encoding, 1.2% lower bitrate (foreman@352x288 qscale=8) no significant change at qscale=1

Originally committed as revision 3366 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-08-02 01:03:52 +00:00
Michael Niedermayer
620ab797f0 1/0 fix
Originally committed as revision 3357 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-28 01:35:29 +00:00
Michael Niedermayer
2ff9ff5bdf dont segfault without -strict -1
Originally committed as revision 3356 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-28 00:09:03 +00:00
Michael Niedermayer
da66b6313e optimize quantizaton (about 3x faster)
further opt is easily possible but could lead to overflows depening upon coefficient range, so this wont be done yet as it would make the code somewhat less flexible

Originally committed as revision 3354 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-27 17:38:53 +00:00
Michael Niedermayer
a8d73e56e6 cleanup
remove ugly and slow vertical scaning code
0.1% bitrate increase (foreman@352x288 qp=1)
0.3% bitrate increase (foreman@352x288 qp=8)

Originally committed as revision 3353 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-27 17:02:31 +00:00
Michael Niedermayer
7848640356 use parent sample to predict significance & magnitude
1% bitrate reduction (foreman@352x288 qscale 1 & 8)

Originally committed as revision 3352 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-27 13:40:16 +00:00
Michael Niedermayer
e071139a96 log2() & bsd
Originally committed as revision 3350 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-27 09:44:57 +00:00
Michael Niedermayer
6b2f664691 better context model (0.2-1% lower bitrate)
a tiny bit cleanup

Originally committed as revision 3348 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-27 01:30:44 +00:00
Michael Niedermayer
de890c9bd1 typo
Originally committed as revision 3342 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-26 13:31:48 +00:00
Michael Niedermayer
791e7b83c3 my experimental wavelet codec
note, this is far from finished, dont expect todays encodings to be decodeable with cvs tomorrow ...

Originally committed as revision 3341 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-25 23:36:44 +00:00