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287 Commits

Author SHA1 Message Date
Michael Niedermayer
233a8b3d6b Merge vertical_compose53iL0*() 
8% faster C 5/3 wavelet at the decoder side.

Originally committed as revision 21131 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-11 01:00:50 +00:00
Michael Niedermayer
2a84512a74 Optimize horizontal_compose53i() by inlining inv_lift() and optimizing the 
resulting code slightly. ~30% faster C 5/3 wavelet at the decoder side.

Originally committed as revision 21130 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-11 00:54:48 +00:00
Jai Menon
4536c8e603 Snow : re-indent after r21093. 
Originally committed as revision 21094 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-08 16:37:32 +00:00
Jai Menon
a4bd598541 Snow : remove pointless 'if(1)'. 
Originally committed as revision 21093 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-08 16:34:50 +00:00
Jai Menon
2da16f288a Snow : use non-NULL context for av_log. 
Originally committed as revision 21089 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-08 14:45:24 +00:00
Jai Menon
8ec5a042e4 Cosmetics : remove duplicated comment. 
Originally committed as revision 21088 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-08 14:33:35 +00:00
Jai Menon
e8c6411ce3 Snow : release buffers allocated using avctx->get_buffer. 
Originally committed as revision 21084 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-08 05:09:17 +00:00
Michael Niedermayer
c267bb038e Fix 1 pass RC in snow. 
Fixes issue547.

Originally committed as revision 20706 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-12-02 20:07:23 +00:00
Diego Biurrun
d773d85515 Reorder functions so that encoding functions are disabled by the preprocessor. 
Fixes compilation with disabled optimizations and enabled Snow decoder.

Originally committed as revision 19914 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-18 19:45:09 +00:00
Baptiste Coudurier
2b2b7f41de snow decoder uses get_buffer, set CODEC_CAP_DR1 
Originally committed as revision 19104 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-05 08:40:31 +00:00
Michael Niedermayer
9a3eaeebad Correct x/ymin to avoid segfault due to out of picture reads. 
Originally committed as revision 18771 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-08 15:14:36 +00:00
Michael Niedermayer
3788e661f1 Optimize sign handling in get_symbol(). 
Originally committed as revision 18672 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-24 00:26:49 +00:00
Michael Niedermayer
e1b3d27272 Remove 2 useless FFMIN(). 
Originally committed as revision 18664 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-22 22:05:34 +00:00
Michael Niedermayer
7bdf2eb8c4 Remove apparently redundant code. 
Originally committed as revision 18663 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-22 21:44:41 +00:00
Lars Täuber
a4873f7d9d Fix indention, patch by Lars Täuber. 
Originally committed as revision 18594 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-17 19:29:54 +00:00
Michael Niedermayer
29322398fc Remove unused variable from slice_buffer_release() found by CSA. 
Originally committed as revision 18570 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-17 17:39:09 +00:00
Michael Niedermayer
75eaa91c15 Remove unused variables from slice_buffer_load_line() found by CSA. 
Originally committed as revision 18561 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-17 15:01:58 +00:00
Diego Biurrun
64bde1974b cosmetics: Rename prn variable to prng (Pseudo Random Number Generator). 
Originally committed as revision 18422 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-10 17:23:38 +00:00
Michael Niedermayer
cc0241283b Make sure the next used frame is released so get_buffer() wont fail. 
Originally committed as revision 18399 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 21:19:25 +00:00
Michael Niedermayer
38fd076c21 Move release_buffer() up so it is prior to a future call to it. 
Originally committed as revision 18398 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 21:17:53 +00:00
Michael Niedermayer
0a08b5735b Factorize release_buffer() 
Originally committed as revision 18397 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 20:44:18 +00:00
Michael Niedermayer
eebbb33abf Make sure spatial_decomposition_count is not too large for picture size. 
this led to an infinite loop in mirror().

Originally committed as revision 18396 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 20:23:13 +00:00
Michael Niedermayer
69409ccb80 Skip non intra frames that have no reference frames. 
Originally committed as revision 18395 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 20:13:35 +00:00
Michael Niedermayer
440882f7be Make sure spatial_decomposition_count is >0. 
Originally committed as revision 18394 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 19:45:10 +00:00
Michael Niedermayer
dc7f45a08e Make sure the block array is of the correct size. 
This might have been exploitable.

Originally committed as revision 18393 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 18:47:50 +00:00
Michael Niedermayer
bc4350a333 Check spatial_decomposition_count too, fixes another crash. 
Originally committed as revision 18392 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 18:37:26 +00:00
Michael Niedermayer
45d1d9794d 10l, forgot to remove old code, which broke snow. 
Originally committed as revision 18391 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 18:29:54 +00:00
Michael Niedermayer
158f189f82 Factorize check of read symbols. 
Originally committed as revision 18390 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 18:21:51 +00:00
Michael Niedermayer
a794356602 Fix spatial_decomposition_type validity check. 
Fixes infinite loop (did no investigate why exactly it got stuck).

Originally committed as revision 18389 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 15:33:02 +00:00
Michael Niedermayer
f0812be883 Fix crash when max_ref_frames was out of range. 
This might have been exploitable.
Fixes first crash of issue840.

Originally committed as revision 18388 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-09 15:17:03 +00:00
Thilo Borgmann
7a00bbad21 Implement avcodec_decode_video2(), _audio3() and _subtitle2() which takes an 
AVPacket argument rather than a const uint8_t *buf + int buf_size. This allows
passing of packet-specific flags from demuxer to decoder, such as the keyframe
flag, which appears necessary to playback corePNG P-frames.

Patch by Thilo Borgmann thilo.borgmann googlemail com, see also the thread
"Google Summer of Code participation" on the mailinglist.

Originally committed as revision 18351 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-07 15:59:50 +00:00
Benoit Fouet
ccc745cdf4 Move declaration of prn before any assignment. 
Originally committed as revision 18255 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-31 07:37:55 +00:00
Diego Biurrun
294eaa2643 Replace random() usage in test programs by av_lfg_*(). 
Originally committed as revision 18070 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-20 11:48:27 +00:00
Diego Biurrun
578f90a8d5 Align test program output columns. 
Originally committed as revision 18068 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-20 11:40:05 +00:00
Aurelien Jacobs
199436b952 moves mid_pred() into mathops.h (with arch specific code split by directory) 
Originally committed as revision 16681 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-18 22:57:40 +00:00
Aurelien Jacobs
9ce6c13879 export gcd function as av_gcd() 
Originally committed as revision 16653 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-17 11:13:33 +00:00
Aurelien Jacobs
b250f9c66d Change semantic of CONFIG_*, HAVE_* and ARCH_*. 
They are now always defined to either 0 or 1.

Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-13 23:44:16 +00:00
Michael Niedermayer
fe5c7e588d More POSIX _t namespace cleanup. 
Originally committed as revision 16082 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-12-12 16:21:23 +00:00
Michael Niedermayer
a6f2c0d6e5 Fix regression test failure with pthreads on multiprocessor systems. 
Fixes issue517

Originally committed as revision 15976 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-12-02 10:43:08 +00:00
Måns Rullgård
bd2b6b33bf snow: move scratch buffer from stack to malloced buffer in context 
This is required to ensure 16-byte alignment.

Originally committed as revision 15934 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-25 00:20:49 +00:00
Mathieu Malaterre
7942269b71 cosmetics: s/const static/static const/g 
patch by Mathieu Malaterre, mathieu.malaterre gmail com

Originally committed as revision 14850 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-19 20:04:46 +00:00
Stefan Gehrer
cf2baeb338 mark read-only data as const 
Originally committed as revision 13947 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-24 20:01:31 +00:00
Stefano Sabatini
fe4bf37455 Make AVCodec long_names definition conditional depending on CONFIG_SMALL. 
Originally committed as revision 13759 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-12 21:50:13 +00:00
Stefano Sabatini
162d4fc99d Add long names to AVCodec declarations. 
patch by Stefano Sabatini, stefano.sabatini-lala poste it

Originally committed as revision 13009 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-04-27 22:39:51 +00:00
Zuxy Meng
98a6fff98c Apply 'cold' attribute to init/uninit functions in libavcodec 
Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-21 03:11:20 +00:00
Aurelien Jacobs
9701840bb5 add FF_ prefix to all (frame)_TYPE usage 
Originally committed as revision 12399 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-09 23:31:02 +00:00
Diego Biurrun
e73e4e75f9 cosmetics: Fix indentation in a few more places. 
Originally committed as revision 12381 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-08 20:27:16 +00:00
Diego Biurrun
ef3dfbd427 cosmetics: Normalize {} placement after for, while, if. 
Originally committed as revision 12380 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-08 20:24:24 +00:00
Aurelien Jacobs
5a6a9e78ab move draw_edges() into dsputil 
Originally committed as revision 12309 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-04 00:07:41 +00:00
Michael Niedermayer
b5a33ff124 suppress the second warning 
Originally committed as revision 12276 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-28 23:44:52 +00:00
Diego Biurrun
94ae6788e2 cosmetics: Demplayerify indentation. 
Originally committed as revision 12240 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-26 17:56:00 +00:00
Diego Biurrun
301df48074 Add comments to some #endif directives. 
Originally committed as revision 12239 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-26 17:13:42 +00:00
Diego Biurrun
e6464f8b5e cosmetics: spelling/grammar 
Originally committed as revision 12238 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-26 17:06:31 +00:00
Diego Biurrun
d248905ba5 Remove START_TIMER and STOP_TIMER macros. 
Originally committed as revision 12227 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-26 09:35:21 +00:00
Diego Biurrun
4847a997aa Remove commented-out av_log calls. 
Originally committed as revision 12222 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-25 22:44:35 +00:00
Michael Niedermayer
2936438a38 Make diego happy. 
Originally committed as revision 12220 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-25 22:32:52 +00:00
Michael Niedermayer
7e2ea58313 some const 
Originally committed as revision 11746 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-01 14:18:09 +00:00
Baptiste Coudurier
8943802849 add parenthesis, fix warning: snow.c:2413: warning: suggest parentheses around && within || 
Originally committed as revision 11687 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-31 00:57:48 +00:00
Baptiste Coudurier
f0a7084088 Add const qualifier, fix warnings: 
snow.c:2292: warning: assignment discards qualifiers from pointer target type
snow.c:2294: warning: assignment discards qualifiers from pointer target type
snow.c:2300: warning: assignment discards qualifiers from pointer target type

Originally committed as revision 11686 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-31 00:56:29 +00:00
Diego Biurrun
6a339972af Remove unused variables in test code. 
Originally committed as revision 11599 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-22 23:47:59 +00:00
Diego Biurrun
07e4e3ea8b Consistently use TEST as the preprocessor condition to enable test code. 
Originally committed as revision 11581 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-20 23:53:51 +00:00
Michael Niedermayer
526e037b95 Remove green clouds. 
fixes issue263

Originally committed as revision 11524 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-14 04:27:03 +00:00
Michael Niedermayer
1918057c8a prevent warnings about functions being possibly unused 
Originally committed as revision 11174 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-06 08:38:49 +00:00
Michael Niedermayer
9a3bb2b89c thank you for your efforts to keep my code clean, but i would like to 
keep the functions below as they are usefull for debugging, testing,
experiments and development

revert
r11048 | diego | 2007-11-17 00:15:39 +0100 (Sat, 17 Nov 2007) | 4 lines

Remove unused functions, fixes the warnings:
snow.c:1163: warning: 'spatial_compose53i' defined but not used
snow.c:1313: warning: 'spatial_compose97i' defined but not used

Originally committed as revision 11173 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-06 02:02:41 +00:00
Diego Biurrun
f8a80fd69d main() --> main(void) 
Originally committed as revision 11079 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-23 00:52:56 +00:00
Diego Biurrun
eb72cacb21 Remove unused functions, fixes the warnings: 
snow.c:1163: warning: 'spatial_compose53i' defined but not used
snow.c:1313: warning: 'spatial_compose97i' defined but not used

Originally committed as revision 11048 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-16 23:15:39 +00:00
Aurelien Jacobs
87246a01cf avoid some halfpel related #ifdef 
Originally committed as revision 11041 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-15 22:32:39 +00:00
Diego Biurrun
a0c013de34 Put halfpel_interpol under the same #ifdef as its usage, fixes the warning: 
snow.c:4142: warning: #halfpel_interpol# defined but not used

Originally committed as revision 11035 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-15 12:40:40 +00:00
Diego Biurrun
96e2fbf27b Add comments to some #endif directives. 
Originally committed as revision 10998 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-10 16:44:37 +00:00
Diego Biurrun
f073a3934a cosmetics: Fix vissual --> visual typo. 
Originally committed as revision 10997 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-10 16:39:54 +00:00
Stefano Sabatini
2e39d0cd5b Improve unsupported (pixel) format error message. 
patch by Stefano Sabatini, stefano.sabatini-lala poste it

Originally committed as revision 10996 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-10 16:25:44 +00:00
Diego Biurrun
3ea7841120 warning fixes: 
snow.c: In function ‘decode_header’:
snow.c:3668: warning: unused variable ‘absum’
snow.c: In function ‘decode_init’:
snow.c:4551: warning: unused variable ‘s’

Originally committed as revision 10708 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-10-11 09:35:06 +00:00
Michael Niedermayer
ff193e6419 some experimental iterative quantization code 
disabled as it is VERY slow
gain is 0.1-0.2 psnr at low qp

Originally committed as revision 10556 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-23 21:11:36 +00:00
Michael Niedermayer
8db1372814 make changing spatial_decomposition_count per frame work 
Originally committed as revision 10464 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 18:28:36 +00:00
Michael Niedermayer
dbd6a1fee8 do not ignore return of decode_header() 
Originally committed as revision 10461 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 17:01:11 +00:00
Michael Niedermayer
b85bf991f6 do not force the halfpel filter coeffs to be retransmitted on every frame 
if always_reset is set

Originally committed as revision 10460 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 16:54:00 +00:00
Michael Niedermayer
e559c30a20 allow changing of the spatial_decomposition_count and quantization tables 
per frame (this is untested as the encoder does not use it yet)

Originally committed as revision 10458 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 15:06:46 +00:00
Michael Niedermayer
4f90f33ab4 perform init after reading the values needed for init 
fixes decoding of files with spatial_decomposition_count!=5

Originally committed as revision 10457 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 13:47:25 +00:00
Michael Niedermayer
081c9d1d7b unneeded and impossible during init ... 
Originally committed as revision 10455 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 12:46:25 +00:00
Michael Niedermayer
32272f7e95 unused 
Originally committed as revision 10454 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 12:36:10 +00:00
Michael Niedermayer
014f9d233f allocate slice buffer after parsing the header containing needed parameters 
argh i really wish i had never accepted these slice patches ...

Originally committed as revision 10453 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 12:33:34 +00:00
Michael Niedermayer
ba8964db60 remove () 
Originally committed as revision 10452 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 12:25:12 +00:00
Michael Niedermayer
61806e9fa7 spatial_decomposition_count != 5 bugfix 
Originally committed as revision 10451 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 12:24:45 +00:00
Michael Niedermayer
fa731ccd4e scaling obmc tables under #if 0 also by 4 (yes they where forgotten apparently) 
this also requires a few entries to be ++ and -- to avoid a max of 256

Originally committed as revision 10450 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-09 12:22:11 +00:00
Michael Niedermayer
61d6e445b1 rename HTAPS -> HTAPS_MAX (later is correct after the previous change) 
Originally committed as revision 10437 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-08 14:52:21 +00:00
Michael Niedermayer
7d7f57d939 store halfpel filter coefficients in the header as well as the 
flag for diagonal interpolation

the primary reason for this change is that previously MC up to 1/4 pel
matched H.264 exactly and that increases the risk of stumbling over
patents

secondly this allows 0.10 db or more quality gain by choosing a longer
filter and the filter could also be chosen optimally for each frame
though that of course would cause speed loss at the decoder and encoder
side ...

Originally committed as revision 10436 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-08 14:51:13 +00:00
Michael Niedermayer
4770a97aae remove outcommented code 
Originally committed as revision 10435 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-08 03:16:24 +00:00
Michael Niedermayer
65dc0f532d indention 
Originally committed as revision 10434 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-08 03:15:42 +00:00
Michael Niedermayer
a68ca08e30 cleanup mc_block() 
perform interpolation steps in such an order that halfpel interpolation
could be done per picture
this also makes mc_block() match h.264 for the 1/4 pel cases so that the
use of the h264 functions for some cases does not introduce a fantastic mess

Originally committed as revision 10433 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-08 03:14:20 +00:00
Michael Niedermayer
2b48d8ba4a add a 8 taps filter for testing 
Originally committed as revision 10394 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-05 01:49:14 +00:00
Michael Niedermayer
71dce72bee Replace constants by HTAPS (half pel interpolation filter taps) where appropriate. 
Originally committed as revision 10390 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-05 00:49:09 +00:00
Michael Niedermayer
5be3a81871 code to do halfpel interpolation per frame (unfinished and under ifdef but it 
should be faster when its finished)

Originally committed as revision 10293 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-05 00:06:34 +00:00
Luca Barbato
9d14ffbcce Cosmetics 
Originally committed as revision 10278 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-01 14:00:47 +00:00
Michael Niedermayer
ff06e0677b cleanup (remove some old experimentation related code) 
Originally committed as revision 10220 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-25 03:19:39 +00:00
Michael Niedermayer
b5b88eb3b4 we only have 2 wavelets, the 3rd was just for experimentation ... 
Originally committed as revision 10219 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-25 03:04:13 +00:00
Michael Niedermayer
d593e32983 use 16bit IDWT (a SIMD implementation of it should be >2x faster then with 
the old 32bit code)
disable mmx/sse2 optimizations as they need a rewrite now

Originally committed as revision 10218 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-25 03:00:51 +00:00
Michael Niedermayer
b538791bc9 use more bits on the encoder side 
negligible increase in quality

Originally committed as revision 10195 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-23 10:49:14 +00:00
Michael Niedermayer
81717747ab simplify 
Originally committed as revision 10186 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-22 17:26:49 +00:00
Michael Niedermayer
ce611a27be Change rounding of the horizontal DWT to match the vertical one. 
This allows some simplifications and optimizations and should
not have any effect on quality.

Originally committed as revision 10172 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-21 16:29:40 +00:00
Michael Niedermayer
49ca0e531a get rid of idiotc double subtraction 
Originally committed as revision 10154 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-20 22:18:26 +00:00