virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-26 19:01:44 +02:00
Code Issues Releases Activity
26,821 Commits 37 Branches 400 Tags 460 MiB
aab45ca3de
Commit Graph

76 Commits

Author SHA1 Message Date
Stefano Sabatini
e16f217ceb Use new imgutils.h API names, fix deprecation warnings. 
Originally committed as revision 25058 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-09-07 19:15:29 +00:00
Jason Garrett-Glaser
2b476e02e1 Remove some stray +s in VP8 
Originally committed as revision 24791 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-13 02:02:07 +00:00
Pascal Massimino
aa93c52c21 remove b4_stride/mb_stride. 
correct mb_xy to use mb_width.
tighten allocations.
reduce the amount of zeroing.

Originally committed as revision 24760 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-11 08:27:38 +00:00
Pascal Massimino
ccf13f9e20 fix over-allocation. confused b4_stride with mb_width. 
Originally committed as revision 24758 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-11 05:24:19 +00:00
Stefano Sabatini
6ce9b4310c Remove use of the deprecated function avcodec_check_dimensions(), use 
av_check_image_size() instead.

Originally committed as revision 24711 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-06 09:37:04 +00:00
Jason Garrett-Glaser
7e13022a4d VP8: fix bug in prefetch 
Motion vectors in VP8 are qpel, not fullpel.

Originally committed as revision 24707 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-05 20:03:54 +00:00
Jason Garrett-Glaser
905ef0d064 VP5/6/8: eliminate CABAC dependency 
Create a custom table for VP5/6/8's renorm to avoid depending on H.264's.
Saves one instruction in the arithmetic decoder as well.

Originally committed as revision 24701 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-04 23:04:05 +00:00
Jason Garrett-Glaser
1e73967950 VP8: partially inline decode_block_coeffs 
Avoids a function call in the case of empty DCT blocks (most of the time).

Originally committed as revision 24691 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-04 02:23:25 +00:00
Jason Garrett-Glaser
ffbf0794f9 Fix 100L in r24689 
Accidentally committed some timing code.

Originally committed as revision 24690 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-04 01:40:58 +00:00
Jason Garrett-Glaser
afb54a85c3 VP8: simplify decode_block_coeffs to avoid having to track nonzero coeffs 
Slightly faster.

Originally committed as revision 24689 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-04 01:38:08 +00:00
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
476be414a4 VP8: make another RAC call branchy 
1-2 clocks faster.

Originally committed as revision 24683 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-03 11:34:24 +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
f311208cf1 VP8: much faster DC transform handling 
A lot of the time the DC block is empty: don't do the WHT in this case.
A lot of the rest of the time, there's only one coefficient: make a special
DC-only transform for that case.
When the block is empty, don't incorrectly mark luma DCT blocks as having DC
coefficients.

Originally committed as revision 24670 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-02 20:57:03 +00:00
Jason Garrett-Glaser
827d43bb9d VP8: move zeroing of luma DC block into the WHT 
Lets us do the zeroing in asm instead of C.
Also makes it consistent with the way the regular iDCT code does it.

Originally committed as revision 24668 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-02 20:18:09 +00:00
Pascal Massimino
d2840fa49c only store intra prediction modes on the boundary for keyframes, not as a plane. 
inter-frame behaviour unchanged.

Originally committed as revision 24664 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-02 09:44:53 +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
Pascal Massimino
c22b4468a6 prevent access to vp8_coeff_band[16] 
Originally committed as revision 24656 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-01 23:20:06 +00:00
Pascal Massimino
a8ab0cccf7 b0rk3d FATE + black helicopters hissing -> rolling back to r24556 and sleeping 
Originally committed as revision 24559 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-27 23:09:13 +00:00
Pascal Massimino
62d1f7864e perform the clipping on luma_dc_qmul[1] and chroma_qmul[0] earlier 
Originally committed as revision 24558 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-27 22:23:50 +00:00
Pascal Massimino
e7e81959d6 save some copies by moving some fields out of proba[2] 
Originally committed as revision 24557 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-27 22:21:49 +00:00
Jason Garrett-Glaser
fca05ea8a0 VP8: add missing free 
Fixes a tiny memory leak.

Originally committed as revision 24504 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-26 07:10:30 +00:00
Carl Eugen Hoyos
28e241de5d Fix r24445: Instead of needlessly initialising a variable, silence the warning. 
Originally committed as revision 24498 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-25 14:49:45 +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
7697cdcf95 VP8: Use vp56_rac_get_prob_branchy when the bit is only used by an if() 
Originally committed as revision 24469 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 21:46:20 +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
13a1304bb3 Add myself to VP8 copyright and maintainers. 
Also add Ronald to maintainers.

Originally committed as revision 24464 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 21:42:35 +00:00
Jason Garrett-Glaser
414ac27d8f VP8: always_inline some things to force gcc to do the right thing 
Mostly seems to help in the MC code, which gets a hundred cycles faster.

Originally committed as revision 24463 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 21:36:21 +00:00
Jason Garrett-Glaser
06d50ca804 VP8: use AV_RL24 instead of defining a new RL24. 
Originally committed as revision 24462 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 21:17:18 +00:00
Jason Garrett-Glaser
9fddd14a8e VP8: Slightly faster MV selection 
Don't clamp best mv unless it's actually used.

Originally committed as revision 24461 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 19:06:22 +00:00
Jason Garrett-Glaser
14767f35ed VP8: use AV_ZERO32 instead of AV_WN32A where relevant 
Originally committed as revision 24460 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 10:42:19 +00:00
Jason Garrett-Glaser
09959ec46e VP8: eliminate redundant code in r24458 
Originally committed as revision 24459 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 10:34:21 +00:00
Jason Garrett-Glaser
a71abb714e VP8: shave a few clocks off check_intra_pred_mode 
Originally committed as revision 24458 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 10:24:38 +00:00
Jason Garrett-Glaser
0087aa47d0 VP8: fix broken sign bias code in MV pred 
Apparently the official conformance test vectors don't test this feature,
even though libvpx uses it.

Originally committed as revision 24456 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 06:41:35 +00:00
Jason Garrett-Glaser
3ae079a3c8 VP8: optimize DC-only chroma case in the same way as luma. 
Add MMX idct_dc_add4uv function for this case.
~40% faster chroma idct.

Originally committed as revision 24455 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 06:02:52 +00:00
Jason Garrett-Glaser
3df56f4118 VP8: Clean up some variable shadowing. 
Originally committed as revision 24454 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 03:44:37 +00:00
Jason Garrett-Glaser
8a467b2d44 VP8: 30% faster idct_mb 
Take shortcuts based on statistically common situations.
Add 4-at-a-time idct_dc function (mmx and sse2) since rows of 4 DC-only DCT
blocks are common.
TODO: tie this more directly into the MB mode, since the DC-level transform is
only used for non-splitmv blocks?

Originally committed as revision 24452 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 02:58:27 +00:00
Jason Garrett-Glaser
ef38842f0b VP8: smarter prefetching 
Don't prefetch reference frames that were used less than 1/32th of the time so
far in the frame.
This helps speed up to ~2% on videos that, in many frames, make near-zero
(but not entirely zero) use of golden and/or alt-refs.
This is a very common property of videos encoded by libvpx.

Originally committed as revision 24451 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 01:59:56 +00:00
Jason Garrett-Glaser
c25c776708 VP8: clear DCT blocks in iDCT instead of using clear_blocks. 
~0.3% faster overall.

Originally committed as revision 24448 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 00:07:16 +00:00
Jason Garrett-Glaser
b74f70d646 VP8: avoid a memset for non-i4x4 blocks with no coefficients 
Originally committed as revision 24447 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-23 00:05:44 +00:00
Jason Garrett-Glaser
145d31865d Get rid of more unnecessary dereferences in VP8 deblocking 
Originally committed as revision 24446 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-22 23:11:40 +00:00
Jason Garrett-Glaser
867215336d Shut up an uninitialized variable GCC warning in VP8. 
Originally committed as revision 24445 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-22 23:04:51 +00:00
Jason Garrett-Glaser
c4211046d2 Smarter VP8 prefetching 
Prefetch all refs (including altref), but only if they've been used so far this
frame.
~2.5% faster overall.

TODO: Do something even smarter, like using how often each ref has been used
so far, so that a couple blocks of a rarely-used ref don't force us to prefetch
it.

Originally committed as revision 24444 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-22 23:03:08 +00:00
Jason Garrett-Glaser
8cfae560ad Fix stupid bug in VP8 prefetching code 
Originally committed as revision 24443 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-22 22:15:43 +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
Jason Garrett-Glaser
d292c3455e Eliminate some repeated dereferences in VP8 inter_predict 
Originally committed as revision 24438 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-22 21:05:30 +00:00
Jason Garrett-Glaser
b946111fde Eliminate a pointless memset for intra blocks in P-frames in VP8 
Originally committed as revision 24429 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-22 12:15:29 +00:00