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259 Commits

Author SHA1 Message Date
Diego Biurrun
36c32bdddf Remove unused variables and the corresponding warnings along with them. 
Originally committed as revision 6536 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-10-03 17:12:48 +00:00
Panagiotis Issaris
4156a436e3 Handle possible failure of ff_eval. 
Originally committed as revision 6338 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-09-26 14:04:36 +00:00
Loren Merritt
f7e89c73e3 snow cosmetics: merge the sliced and non-sliced versions of add_yblock 
Originally committed as revision 6149 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-09-01 22:02:38 +00:00
Loren Merritt
74e6a8aade fix snow 1pass rc: the qlog used and the one written to the bitstream weren't always the same. 
Originally committed as revision 6148 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-09-01 21:51:35 +00:00
Diego Biurrun
ed4e20ac7f Fix some "'static' is not at beginning of declaration" warnings. 
Originally committed as revision 5956 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-08 10:24:26 +00:00
Michael Niedermayer
086bfd256e support doing motion estimation and compensation without any residual transform or coding 
this is usefull for filters which need ME/MC

Originally committed as revision 5456 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-06-04 21:54:58 +00:00
Loren Merritt
7374794a89 Snow: don't try to encode lossless with 9/7 wavelet, because it isn't lossless. 
Originally committed as revision 5433 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-30 19:45:12 +00:00
Loren Merritt
d4b287ed36 Snow: cosmetics 
Originally committed as revision 5432 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-30 19:40:28 +00:00
Loren Merritt
85fc0e7531 Snow: scale predicted mv based on which reference frame the neighbors used. 
Originally committed as revision 5431 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-30 16:42:29 +00:00
Loren Merritt
7f21a9a7b8 Snow: cosmetics 
Originally committed as revision 5428 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-30 06:49:15 +00:00
Loren Merritt
871371a768 Snow: fix subband weighting in wavelet cmp functions. use 32x32 cmp in iterative motion estimation. 
Originally committed as revision 5427 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-30 05:44:22 +00:00
Loren Merritt
383f62fdfe Snow: 10l. 1pass ratecontrol failed to set snow's internal quant. 
Originally committed as revision 5426 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-30 04:51:58 +00:00
Loren Merritt
8c36eaaa94 Snow multiple reference frames 
(bitstream is not backwards compatible, even if refs aren't used)

Originally committed as revision 5417 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-28 21:44:47 +00:00
Loren Merritt
4e64beadf0 Snow 1pass ratecontrol 
Originally committed as revision 5416 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-28 12:38:10 +00:00
Michael Niedermayer
3a1a7e32ac sanity checks, some might have been exploitable ... 
Originally committed as revision 5369 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-05-13 10:45:26 +00:00
Robert Edele
561a18d3ba Snow mmx + sse2 part 2 
Patch by Robert Edele,  yartrebo <<at>> earthlink <<dot>> net

Originally committed as revision 5184 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-20 05:52:23 +00:00
Robert Edele
059715a41c First part of a series of speed-enchancing patches. 
This one sets up a snow.h and makes snow use the dsputil function pointer
framework to access the three functions that will be implemented in asm
in the other parts of the patchset.
Patch by Robert Edele < yartrebo AH earthlink POIS net>
Original thread:
Subject: [Ffmpeg-devel] [PATCH] Snow mmx+sse2 asm optimizations
Date: Sun, 05 Feb 2006 12:47:14 -0500

Originally committed as revision 5172 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-16 19:18:18 +00:00
Michael Niedermayer
fc8c49926c dont pass intra flag if its always 0 
Originally committed as revision 5164 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-14 00:22:05 +00:00
Loren Merritt
8f8ae4951e seed iterative_me with mvs from conventional search. 
+15% speed, +.1 dB

Originally committed as revision 5158 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-13 01:27:13 +00:00
Loren Merritt
07674d518c obey vqscale in 2nd pass 
Originally committed as revision 5157 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-13 01:26:06 +00:00
Michael Niedermayer
e7c8206e5c av_free -> av_freep 
Originally committed as revision 5145 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-11 00:19:32 +00:00
Michael Niedermayer
87f20c2f31 fix %8 != 0 w/h 
Originally committed as revision 5144 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-11 00:18:43 +00:00
Dieter
ceaf1909c1 add static keyword to some functions 
patch by Dieter <freebsd at sopwith solgatos com>

Originally committed as revision 4913 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-30 23:33:19 +00:00
Diego Biurrun
4f59b684a6 Remove all stray tabs and trailing whitespace, this time for good. 
Originally committed as revision 4891 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-24 10:33:14 +00:00
Loren Merritt
48d1b9a17c fix convergence of snow iterative_me 
Originally committed as revision 4876 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-21 02:35:03 +00:00
Loren Merritt
3de79d0dca revert 1.83 because it's not needed 
Originally committed as revision 4875 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-21 02:33:01 +00:00
Loren Merritt
d3ac6ed667 detect when iterative_me fails to converge, and stop searching 
Originally committed as revision 4868 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-19 09:21:39 +00:00
Loren Merritt
b104969fab obmc-aware 4mv 
Originally committed as revision 4864 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-17 08:27:39 +00:00
Diego Biurrun
5509bffa88 Update licensing information: The FSF changed postal address. 
Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-12 22:43:26 +00:00
Michael Niedermayer
c8a596d210 bugs found by valgrind 
Originally committed as revision 4841 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-12 21:37:57 +00:00
Loren Merritt
1015631b79 faster iterative_me: avoid duplicate mc of neighboring blocks. 
Originally committed as revision 4839 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-12 05:47:52 +00:00
Michael Niedermayer
80e44bc3bf use h264 MC functions for 2xX Xx2 blocks in snow too 
Originally committed as revision 4824 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-08 01:50:34 +00:00
Michael Niedermayer
2692ceab8b use h264 MC functions for rectangular blocks too 
Originally committed as revision 4821 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-07 18:34:19 +00:00
Michael Niedermayer
39277cf949 10l (assertion failure) 
Originally committed as revision 4819 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-07 03:39:10 +00:00
Michael Niedermayer
3b6ab26c01 cleanup 
fix 4mv playback distortions

Originally committed as revision 4813 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-04 22:34:11 +00:00
François Revol
003cd80df9 :%s/check_block_2p/check_block_inter/g 
Originally committed as revision 4794 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-30 22:41:32 +00:00
François Revol
52137f2f43 this fixes compilation with gcc 2.95 which seems to not like array casting... special case inline of check_block which makes the array and passes it 
Originally committed as revision 4793 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-30 21:05:44 +00:00
Michael Niedermayer
13705b69eb mem corruption fix 
Originally committed as revision 4789 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-30 15:12:02 +00:00
Michael Niedermayer
d6f41eeddc 4mv + iter ME 10l fix (still not bugfree but better) 
Originally committed as revision 4783 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-29 02:17:51 +00:00
Michael Niedermayer
735f9f34fe 10l 
Originally committed as revision 4782 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-28 23:45:16 +00:00
Michael Niedermayer
51d6a3cf00 iterative overlapped block based motion estimation for snow 
Originally committed as revision 4781 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-28 15:43:53 +00:00
Diego Biurrun
bb270c0896 COSMETICS: tabs --> spaces, some prettyprinting 
Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-22 01:10:11 +00:00
Michael Niedermayer
daba69b211 10l 
Originally committed as revision 4758 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-19 18:26:17 +00:00
Diego Biurrun
115329f160 COSMETICS: Remove all trailing whitespace. 
Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-17 18:14:38 +00:00
Michael Niedermayer
4393e6392c check block_max_depth (fixes crash) 
Originally committed as revision 4718 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-03 14:20:03 +00:00
Michael Niedermayer
91aa4e3300 make selftest code compile again 
Originally committed as revision 4717 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-03 03:07:54 +00:00
Aurelien Jacobs
62ab0b7822 fix unused variable warnings 
Originally committed as revision 4609 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-09-21 23:09:16 +00:00
Michael Niedermayer
cc884a3506 reducing minimum supported picture size 
Originally committed as revision 4535 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-08-21 22:17:41 +00:00
Michael Niedermayer
9cd8179818 #defines for strict_std_compliance and split between inofficial extensions and non standarized things 
Originally committed as revision 4205 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-05-08 20:15:42 +00:00
Michael Niedermayer
644a92626a PIX_FMT_NONE and related fixes 
Originally committed as revision 4161 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-25 18:29:06 +00:00
Yartrebo
66b32bf272 tighter snow slicing patch by (Yartrebo || yartrebo earthlink net) 
Originally committed as revision 4159 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-25 10:03:01 +00:00
Mike Melanson
160d679c07 Ministry of English Composition, reporting for duty (and the word is "skipped", not "skiped"; "skiped" would rhyme with "hyped") 
Originally committed as revision 4153 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-24 17:21:11 +00:00
Yartrebo
8c2515bbb9 fix overflow in mc_block() patch by (Yartrebo )yartrebo earthlink net 
Originally committed as revision 4132 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-17 09:27:53 +00:00
Michael Niedermayer
b44985ba12 store the number of runs to avoid storing the last run value 
about 10% lower bitrate for -qscale 32 (forman & some music video)
worst case bitrate increase <0.1% (lossless or low qscale)
and now the bad news, even though this just adds a single subtraction and an if() into the medium sized unpack_coeffs() loop and the if() will only be false once per unpac_coeff() call, gcc produces 50% slower code, i didnt look at the generated asm yet, not sure if i want to ...

Originally committed as revision 4131 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-15 13:24:30 +00:00
Loren Merritt
2cd340438a allow 2pass ratecontrol. also fixes psnr displayed by mencoder. 
Originally committed as revision 4130 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-15 05:54:47 +00:00
Michael Niedermayer
cbb1d2b161 replace complicated pointer dereference + index stuff by pointers in unpack_coeffs() 
Originally committed as revision 4129 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-14 20:54:03 +00:00
Michael Niedermayer
99cd59e58f minor optimization 
Originally committed as revision 4128 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-14 20:30:08 +00:00
Michael Niedermayer
3c096ac791 optimizing unpack_coeffs() 
Originally committed as revision 4127 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-14 18:33:26 +00:00
Yartrebo
86e59cc01d Snow segfault bug in revision 1.43 patch by (Yartrebo /yartrebo earthlink net/) 
Originally committed as revision 4126 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-13 01:57:19 +00:00
Michael Niedermayer
f5a719287d rescale coefficients during IDWT, that way the lifting steps are much simpler and faster 
Originally committed as revision 4119 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-10 14:21:53 +00:00
Michael Niedermayer
a0a74ad9f0 increasing precission of the quantization parameter 
this is needed as the quantization stepsize for each subband is also in this precission and insignificant changes to the wavelet like scaling its coefficients slightly differently would lead to wildly variing PSNR and bitrate
note, a encoder could also simply choose to leave the least significant bits of the quantization parameters zero which would give the exact previous behaviour except a y very tiny number of bits in  the header

Originally committed as revision 4115 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-09 22:15:48 +00:00
Michael Niedermayer
c97de57c39 fix QROOT != 8 
Originally committed as revision 4114 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-09 19:48:59 +00:00
Michael Niedermayer
538a38418c 10% faster unpack_coeffs 
Originally committed as revision 4108 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-05 17:59:05 +00:00
Michael Niedermayer
3cff4572ce fixing lossless snow 
Originally committed as revision 4107 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-05 09:37:43 +00:00
Michael Niedermayer
565a45ace3 merge vertical lifting steps and a little cleanup 
Originally committed as revision 4104 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-04 21:35:18 +00:00
Yartrebo
a0d1931c0e Snow Slicing patch by (Yartrebo) yartrebo earthlink net 
Originally committed as revision 4101 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-04-03 15:43:57 +00:00
Loren Merritt
f9e6ebf7f9 slice-based idwt (10% faster decoding) 
Originally committed as revision 4040 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-03-15 21:05:34 +00:00
Michael Niedermayer
53513831da -strict -1 comment fix 
Originally committed as revision 3976 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-24 16:39:03 +00:00
Michael Niedermayer
934982c4ac avoid buf_size == 0 checks in every decoder 
Originally committed as revision 3872 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-23 18:09:06 +00:00
Matthieu Castet
d06c75a830 10l patch by (matthieu castet <castet.matthieu free fr>) 
Originally committed as revision 3842 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-16 22:11:47 +00:00
Michael Niedermayer
0ecca7a49f various security fixes and precautionary checks 
Originally committed as revision 3822 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-12 00:16:25 +00:00
Gianluigi Tiesi
8ff53f5b07 Disable encoders patch by (Gianluigi Tiesi <mplayer netfarm it>) 
Originally committed as revision 3797 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-03 16:13:52 +00:00
Michael Niedermayer
2554db9b5f fix for build on IRIX by (Michel Bardiaux {mbardiaux peaktime be}) 
Originally committed as revision 3713 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-11-25 19:26:46 +00:00
Michael Niedermayer
2886975773 CABAC -> range coder 
Originally committed as revision 3655 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-10-30 02:16:27 +00:00
Michael Niedermayer
d7d51926dd unused 
Originally committed as revision 3502 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-24 18:12:43 +00:00
Michael Niedermayer
715a97f0c0 merge predict_plane() with DWTELEM->8bit conversation (21% faster) 
Originally committed as revision 3499 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-23 12:20:41 +00:00
Michael Niedermayer
034aff036f 8 -> FRAC_BITS 
Originally committed as revision 3489 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-21 23:10:10 +00:00
D Richard Felker III
aa25a462b6 consistent use of types patch by (D Richard Felker III <dalias at aerifal dot cx>) 
Originally committed as revision 3480 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-19 14:43:09 +00:00
Loren Merritt
7c2425d239 simplify getsymbol patch by (Loren Merritt <lorenm at u dot washington dot edu>) 
Originally committed as revision 3476 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-17 23:51:36 +00:00
Michael Niedermayer
bd368b565b per picture psnr 
Originally committed as revision 3465 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-15 01:55:04 +00:00
Michael Niedermayer
d92b58073e 100l (forgot to set the 8x8 mc functions, so ME did use the mpeg ones ...) 
Originally committed as revision 3456 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-12 23:09:54 +00:00
Michael Niedermayer
ec69758781 use h264 MC code if possible 
50% faster predict_plane() if mmx2/3dnow is available
0.1% bitrate increase

Originally committed as revision 3455 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-12 21:32:36 +00:00
Michael Niedermayer
3924dac4c8 use pointer arithmetic in mc_block(), 25% faster 
Originally committed as revision 3452 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-12 10:51:02 +00:00
Michael Niedermayer
ff158dc95d 20% faster predict_plane() 
moion vector max/min fix

Originally committed as revision 3434 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-09-05 21:46:16 +00:00
Michael Niedermayer
19aa028dc5 10l (keyframes and context resets) 
Originally committed as revision 3426 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-08-31 16:28:49 +00:00
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