Jason Garrett-Glaser
b0d5879513
VP8: slightly faster DCT coefficient probability update
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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
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~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
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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
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~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
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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
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~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
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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
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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
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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
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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
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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.
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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.
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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
