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348 Commits

Author SHA1 Message Date
Michael Niedermayer
d6bea62338 make mpa_decode_header() 10 times faster 
Originally committed as revision 6101 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-26 18:02:52 +00:00
Michael Niedermayer
731d0b1aaa another silly typo which surprisingly neither valgrind nor cmp of the file output cought 
Originally committed as revision 6100 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-26 17:29:31 +00:00
Michael Niedermayer
d37bb9d8c1 10l found by valgrind 
Originally committed as revision 6099 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-26 15:24:13 +00:00
Michael Niedermayer
06e7fb82a4 remove duplicated parser, people who pass random gibblets of the bitstream into the decoder will have to pass it through a AVParser like for all other codecs too 
remove silly internal buffering architecture (removes 1 memcpy() of the bitstream)
mp3on4 and mp3adu untested

Originally committed as revision 6098 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-26 12:19:05 +00:00
Michael Niedermayer
9bffa9e7af avoid branch 
Originally committed as revision 6088 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-25 14:42:32 +00:00
Michael Niedermayer
14168ddb28 move variable declarations so that their scope is smaller 
Originally committed as revision 6087 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-25 13:58:27 +00:00
Michael Niedermayer
bc2d2757bb move the +400 out of the innermost loop 
Originally committed as revision 6086 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-25 13:46:56 +00:00
Michael Niedermayer
9b49f89cdf avoid reading exponent twice 
Originally committed as revision 6085 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-25 13:36:27 +00:00
Michael Niedermayer
1f1d675b68 reduce size of vlc table, thats slightly faster here 
Originally committed as revision 6084 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-25 12:26:34 +00:00
Michael Niedermayer
55017f35da try to avoid l3_unscale() by using a table 
Originally committed as revision 6083 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-25 11:55:20 +00:00
Michael Niedermayer
f8347c4167 replace l3_unscale(1, exponents[pos]) by LUT 
Originally committed as revision 6082 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-25 10:00:30 +00:00
Michael Niedermayer
7ca1ed0d9c maybe fixing the segfault on ARM 
Originally committed as revision 6081 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-25 02:40:52 +00:00
Michael Niedermayer
92c5cb62b0 10l typo 
Originally committed as revision 6074 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-24 12:35:53 +00:00
Michael Niedermayer
e90a72701e avoid a few if(x==0) checks in the inner loops 
Originally committed as revision 6073 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-24 11:18:41 +00:00
Michael Niedermayer
6430ce0f72 optimize reorder_block() though this function seems to be executed too rarely for this to make much difference 
Originally committed as revision 6068 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-24 08:40:09 +00:00
Michael Niedermayer
a753e55bb5 simplify 
Originally committed as revision 6067 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-24 08:39:07 +00:00
Michael Niedermayer
a08a502eda dont copy the whole GetBitContext around 
Originally committed as revision 6062 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-24 06:57:32 +00:00
Michael Niedermayer
3328ec6331 faster handling of zero coeffs in the low freq decode 
Originally committed as revision 6061 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-24 01:12:26 +00:00
Michael Niedermayer
3c693e7743 optimizing high freq decode 
Originally committed as revision 6060 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-24 01:01:39 +00:00
Michael Niedermayer
daf4cd9ac3 use memset() instead of slow c loops 
Originally committed as revision 6059 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-24 00:03:51 +00:00
Michael Niedermayer
c7aa36964e simplify 
Originally committed as revision 6058 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-23 23:40:03 +00:00
Aurelien Jacobs
acba32385b fix arm asm compilation in mpegaudiodec 
Originally committed as revision 6057 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-23 23:39:27 +00:00
Michael Niedermayer
69fd15f871 MUL* for ARM code based on a patch by Siarhei Siamashka 
untested

Originally committed as revision 6050 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-22 13:25:09 +00:00
Michael Niedermayer
f617adedc8 replace MULL with asm too, no significnat speedup but its probably better to not take any chances, some versions of gcc will almost certainly mess it up too if they can 
Originally committed as revision 6049 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-22 12:07:02 +00:00
Michael Niedermayer
47a0cd7408 replacing MULH by asm for x86 
about 30% faster imdct36()

Originally committed as revision 6048 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-22 11:51:09 +00:00
Michael Niedermayer
5ab1972b53 indent preprocessor directives 
Originally committed as revision 6047 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-22 11:16:47 +00:00
Michael Niedermayer
355903f5a8 make high precission synth filter 3 times faster on x86 
Originally committed as revision 6046 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-22 11:11:04 +00:00
Michael Niedermayer
0bd2483a75 replace MULL by MULH + shift in dct32() (code is very slightly faster, and the compiler should be able to optimize the shift away on 64bit archs) 
Originally committed as revision 6045 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-22 06:24:59 +00:00
Michael Niedermayer
eb6447766d replace a few MULL by MULH 
Originally committed as revision 6039 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-21 12:12:43 +00:00
Michael Niedermayer
120aad7fe9 reorder butterflies to reduce memory load/store 
Originally committed as revision 6037 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-20 22:18:26 +00:00
Michael Niedermayer
55582f8de3 table contains vlc with 19 bits and 8*2 < 19 
Originally committed as revision 5658 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-07-07 10:50:14 +00:00
Steve L'Homme
267f7edcd1 (f)printf --> av_log conversion 
taken from a patch by Steve L'Homme

Originally committed as revision 5127 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-08 11:43:10 +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
Benjamin Larsson
fb9cb0b8c4 get_vlc -> get_vlc2 transition. 
Originally committed as revision 4828 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-08 19:31:21 +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
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
Roberto Togni
d9b1c197e5 QDM2 compatible decoder 
Originally committed as revision 4649 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-10-18 20:16:43 +00:00
Roberto Togni
e6885654eb Reverse patch 1.59->1.60, it break mp3 in ffplay and ffmpeg 
Reversing approved by patch author

Originally committed as revision 4646 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-10-15 16:29:58 +00:00
Alex Beregszaszi
83254e245c removed unused CONFIG_AUDIO_NONSHORT 
Originally committed as revision 4633 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-10-12 22:37:42 +00:00
Michael Niedermayer
c26ae41db2 adding a few const 
Originally committed as revision 4337 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-06-01 21:19:00 +00:00
Michael Niedermayer
02af2269c0 check for error 
Originally committed as revision 4183 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-05-05 20:05:41 +00:00
Michael Niedermayer
f86f4481d8 cast to uint32 as the table is uint32_t, this also worksaround a gcc or libc bug related to frexp() 
Originally committed as revision 3997 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-03-02 20:46:06 +00:00
Måns Rullgård
88730be651 kill warnings patch by (Måns Rullgård <mru inprovide com>) 
Originally committed as revision 3977 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-24 19:08:50 +00:00
Roberto Togni
d2a7718df9 Multichannel mp3 in mp4 support ISO/IEC 14496-3:2001/FPDAM 3 (MP3onMP4) 
Derived from MPlayer patch by Larry Ruedisueli

Originally committed as revision 3955 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-15 20:58:32 +00:00
Michael Niedermayer
44f1698a38 merge a few shifts into the dequantization, faster and more accurate, lets hope it doesnt overflow 
Originally committed as revision 3930 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-03 03:28:27 +00:00
Michael Niedermayer
125d624610 optimizing imdct12 
Originally committed as revision 3929 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-02 22:38:28 +00:00
Michael Niedermayer
ce4a29c066 optimize antialias 
switch to integer antialias code as default as its faster now

Originally committed as revision 3925 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-02 01:37:33 +00:00
Michael Niedermayer
d04728bb57 faster, simpler and more accurate l3_unscale() 
Originally committed as revision 3924 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-01 23:43:07 +00:00
Michael Niedermayer
711ae726f7 optimizing imdct36() 
Originally committed as revision 3923 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-01 21:27:18 +00:00
Michael Niedermayer
a3a5f4d6c3 support 32bit output for the mpeg audio decoder 
Originally committed as revision 3910 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-31 12:16:21 +00:00
Michael Niedermayer
b696d2a676 more accurate dequant of near zero coefficients 
Originally committed as revision 3909 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-31 04:06:47 +00:00
Michael Niedermayer
84af4a7ee6 10l (missing overflow check) 
Originally committed as revision 3908 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-31 03:14:22 +00:00
Michael Niedermayer
093c6e50c9 10l (didnt test code after cvs up ...) 
Originally committed as revision 3904 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-30 14:10:30 +00:00
Michael Niedermayer
a7a858996f dithering for the mpeg audio decoder 
Originally committed as revision 3903 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-30 14:04:56 +00:00
Alex Beregszaszi
bf1f4da01f exported ff_mpa_synth_filter for upcoming qdm2 decoder 
Originally committed as revision 3897 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-28 19:54:10 +00:00
Roberto Togni
1ede228a4f Decode MP3 in ADU format 
Originally committed as revision 3839 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-15 14:59:47 +00:00
Michael Niedermayer
2fc8ea249f dissallow sprintf 
Originally committed as revision 3823 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-01-12 00:59:42 +00:00
Michael Niedermayer
caa336b4cc common.c -> bitstream.c (and the single non bitstream func -> utils.c) 
common.h -> common.h/bitstream.h

Originally committed as revision 3777 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-12-29 17:50:25 +00:00
Burkhard Plaum
073c2593c9 Memory leak fix patch by (Burkhard Plaum <plaum >at< ipf.uni-stuttgart )dot( de>) 
Originally committed as revision 3717 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-11-27 18:10:06 +00:00
Alex Beregszaszi
491c4a1005 warning fix 
Originally committed as revision 3258 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-06-26 10:09:58 +00:00
Michael Niedermayer
53db1cae1c data_size = 0 cleanup 
Originally committed as revision 3146 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-05-21 14:37:16 +00:00
Michael Niedermayer
8d1f2ba5e1 static allocation rewrite (old code was plain a broken mess) 
doesnt call realloc every time
 doesnt randomly overwrite memory after after 8-16 calls
 doesnt use ugly macro wraper
 fewer lines of code

Originally committed as revision 2912 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-03-21 21:58:14 +00:00
Michael Niedermayer
2caa92d935 fixes by Gildas Bazin <gbazin at altern dot org> 
Originally committed as revision 2745 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-02-04 15:49:55 +00:00
Michael Niedermayer
ac806113fe 10l 
Originally committed as revision 2726 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-01-26 19:14:02 +00:00
Steven M. Schultz
84f986c0f4 lrintf patch by ("Steven M. Schultz" <sms at 2BSD dot COM>) 
Originally committed as revision 2680 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-01-08 23:51:23 +00:00
Michael Niedermayer
a1e257b231 optimize compute_antialias() and add a floating point based alternative (2x faster) 
Originally committed as revision 2679 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-01-08 21:08:57 +00:00
Fabrice Bellard
962d6ae6c5 exported mpa_decode_header for new parser API 
Originally committed as revision 2491 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-11-10 15:21:16 +00:00
Fabrice Bellard
98ce5991d7 update sub_id in mpegaudio decoding (might need same method as MPEG2VIDEO too ?) 
Originally committed as revision 2238 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-09-08 22:49:26 +00:00
Fabrice Bellard
80783dc2c2 CODEC_ID_MP3LAME is obsolete 
Originally committed as revision 2232 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-09-08 22:04:29 +00:00
Fabrice Bellard
8c5b5683ae fixed audio frame buffering problem (should correct problems on some streams) - faster synthesis filter - prototype 'parse_only' support 
Originally committed as revision 2173 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-08-28 13:38:06 +00:00
Fabrice Bellard
228ef9dde1 memmove fixes (Jon Burgess) 
Originally committed as revision 2157 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-08-24 22:01:33 +00:00
Michael Niedermayer
a05c8d7177 merging a small amount of the changes from BroadQ, the rest is either not clean / doesnt apply / or is PS2 specific (someone with a PS2 should merge/send a patch for the later) 
Originally committed as revision 1690 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-03-18 17:22:23 +00:00
Michael Niedermayer
983e3246b7 per file doxy 
Originally committed as revision 1634 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-03-06 11:32:04 +00:00
Zdenek Kabelac
0c1a9edad4 * UINTX -> uintx_t INTX -> intx_t 
Originally committed as revision 1578 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-02-11 16:35:48 +00:00
Zdenek Kabelac
5c91a6755b * static,const,compiler warning cleanup 
Originally committed as revision 1567 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-02-10 09:35:32 +00:00
Michael Niedermayer
68f593b484 GetBitContext.size is allways multiplied by 8 -> use size_in_bits to avoid useless *8 in a few inner loops 
Originally committed as revision 1486 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-01-21 17:34:12 +00:00
Måns Rullgård
ef9f730675 C99 initializers and kill warnings patch by (mru at users dot sourceforge dot net (Måns Rullgård)) 
Originally committed as revision 1474 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-01-19 18:30:29 +00:00
Zdenek Kabelac
855ea723b0 * two functions to handle allocation of static data more simple 
av_mallocz_static - called for every static data table
  av_free_static - called when ffmpeg is no longer needed and should free
                   all static resources
* simple usage shown in mpegaudiodec.c

Originally committed as revision 1301 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-12-03 19:40:35 +00:00
Michael Niedermayer
b587a7cb2b vc++ sucks, found by ("csharprules" <csharprules at hotmail dot com>) 
Originally committed as revision 1160 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-11-04 20:57:08 +00:00
Zdenek Kabelac
3625e88ab7 * resync without endless loop 
Originally committed as revision 849 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-08-09 10:43:02 +00:00
Michael Niedermayer
8db1a1dde0 new bitstream reader API (old get_bits() based one is emulated and will still be supported in the future cuz its simpler) 
minor optimizations to get_vlc

Originally committed as revision 725 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-07-09 10:35:10 +00:00
Falk Hüffner
20695ec921 Minor warning cleanup. 
Originally committed as revision 654 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-06-03 11:16:11 +00:00
Fabrice Bellard
8155233413 fixed layer1/2 overflow if very loud sound - fixed broken free format decoding to pass all mpeg audio standard decoding tests (please avoid patching the parser without having all test streams available - contact me if necessary) 
Originally committed as revision 634 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-06-01 14:34:29 +00:00
Zdenek Kabelac
cd4af68ad5 * started to cleanup name clashes for onetime compilation 
Originally committed as revision 617 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-05-27 16:42:14 +00:00
Fabrice Bellard
fad9f495c0 removed invalid buffer handling 
Originally committed as revision 604 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-05-26 14:41:53 +00:00
Fabrice Bellard
ff4ec49e64 license/copyright change 
Originally committed as revision 599 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-05-25 22:45:33 +00:00
Fabrice Bellard
59d3e367a8 fixed incorrect global gain - slightly increased precision of n^(4/3) table 
Originally committed as revision 557 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-05-21 21:07:47 +00:00
Fabrice Bellard
747a67fbab fixed one overflow problem 
Originally committed as revision 553 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-05-20 21:15:53 +00:00
Fabrice Bellard
f9ed4f8894 put all integer init code to compute n^(4/3) - memory alloc and header fixes 
Originally committed as revision 518 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-05-18 22:58:08 +00:00
Juanjo
4b1f4f236b - Versions defined for libav/libavcodec. 
- Bug fix in wav muxer for MP2 audio.
- ffmpeg/libavcodec version in MPEG-4 user data.

Originally committed as revision 400 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-04-15 02:28:05 +00:00
Juanjo
10bb7023a2 - Added force_pts to av_write_packet() to be able to force PTS, this helps 
(and fix) stream copying. By now force_pts it's just honoured by the MPEG
muxer. ASF could honour this also, but it should be fixed to use Tickers
first.
- MPEG audio decoder exports it's frame size in bytes.
- Hope this fix the floating point exception found in ffserver.

Originally committed as revision 382 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-04-07 21:44:29 +00:00
Michael Niedermayer
27a3e2c5e0 another bitstream reader code (faster on intel cpus) - patch by Michael Niedermayer <michaelni@gmx.at> 
Originally committed as revision 252 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-01-10 00:56:05 +00:00
Zdenek Kabelac
92d24f49f8 * fixed decoding busy loop 
Originally committed as revision 203 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2001-10-31 19:40:53 +00:00
Zdenek Kabelac
2d83f323d6 * and finaly avoid deadlock at the end of audio stream 
Originally committed as revision 183 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2001-10-23 20:20:01 +00:00
Zdenek Kabelac
de5123dc35 * fixes to avoid crash when broken mp3 header is found 
Originally committed as revision 182 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2001-10-23 19:58:30 +00:00
Zdenek Kabelac
c152c98327 * simple fix to avoid memcpy with len < 0 
Originally committed as revision 180 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2001-10-23 19:03:33 +00:00
Fabrice Bellard
239c2f4cd0 added completely new mpeg audio decoder (integer only, free format support, lsf/mpeg25 support, high/low precision support, simpler code) 
Originally committed as revision 117 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2001-09-15 22:40:28 +00:00
Fabrice Bellard
de6d9b6404 Initial revision 
Originally committed as revision 5 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2001-07-22 14:18:56 +00:00