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17 Commits

Author SHA1 Message Date
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Jason Garrett-Glaser
bcf4568f18 VP8: split out declarations to new header 2011-02-17 15:25:16 -08:00
Mans Rullgard
a7878c9f73 VP8: ARM optimised decode_block_coeffs_internal 
Approximately 5% faster on Cortex-A8.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-02-11 15:48:11 +00:00
Jason Garrett-Glaser
dd18c9a050 VP8: simplify lf_delta mb mode logic 2011-02-03 19:55:02 -08:00
Jason Garrett-Glaser
b0d5879513 VP8: slightly faster DCT coefficient probability update 
Originally committed as revision 24687 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-03 23:21:47 +00:00
Jason Garrett-Glaser
0908f1b945 VP8: unroll partition type decoding tree 
~34% faster partition type decoding.

Originally committed as revision 24681 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-03 11:10:58 +00:00
Jason Garrett-Glaser
c5dec7f137 VP8: unroll splitmv decoding tree 
Much faster splitmv mode decoding.

Originally committed as revision 24680 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-03 10:37:14 +00:00
Jason Garrett-Glaser
23117d69c1 VP8: unroll MB mode decoding tree 
~50% faster MB mode decoding, plus eliminate a costly switch.

Originally committed as revision 24679 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-03 10:24:28 +00:00
Jason Garrett-Glaser
370b622a45 VP8: eliminate a dereference in coefficient decoding 
Originally committed as revision 24671 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-02 22:48:38 +00:00
Jason Garrett-Glaser
10bf2eebbe VP8: simplify token_prob handling 
~1.5% faster decode_block_coeffs

Originally committed as revision 24659 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-02 05:20:38 +00:00
David Conrad
ca18a478e3 VP8: Inline traversing vp8_small_mvtree 
Much faster read_mv_component, slightly faster overall

Originally committed as revision 24470 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 21:46:25 +00:00
David Conrad
fe1b5d974a Decode DCT tokens by branching to a different code path for each branch 
on the huffman tree, instead of traversing the tree in a while loop.

Based on the similar optimization in libvpx's detokenize.c

10% faster at normal bitrates, and 30% faster for high-bitrate intra-only

Originally committed as revision 24468 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 21:46:17 +00:00
Jason Garrett-Glaser
2a38c2e99a Eliminate a LUT in escape decoding in VP8 decode_block_coeffs 
Originally committed as revision 24441 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-22 22:08:09 +00:00
Ronald S. Bultje
7ed06b2be8 Simplify MV parsing, removes laying out 2 or 4 (16x8/8x8/8x16) MVs over all 
16 subblocks (since we no longer need that), which should also lead to a
minor speedup.

Originally committed as revision 23854 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-28 16:04:14 +00:00
Ronald S. Bultje
7c4dcf8165 Optimize split MC, so we don't always do 4x4 blocks of 4x4pixels each, but 
we apply them as 16x8/8x16/8x8 subblocks where possible. Since this allows
us to use width=8/16 instead of width=4 MC functions, we can now take more
advantage of SSE2/SSSE3 optimizations, leading to a total speedup for splitMV
filter of about 10%.

Originally committed as revision 23853 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-28 13:50:55 +00:00
Ronald S. Bultje
44c70a9b3d Fix a typo, spotted by Diego. 
Originally committed as revision 23738 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-23 13:02:05 +00:00
David Conrad
3b636f21da Native VP8 decoder. 
Patch by David Conrad <lessen42 gmail com> and myself.

Originally committed as revision 23719 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-22 19:24:09 +00:00