9b49f89cdf
avoid reading exponent twice
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Originally committed as revision 6085 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-25 13:36:27 +00:00
1f1d675b68
reduce size of vlc table, thats slightly faster here
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Originally committed as revision 6084 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-25 12:26:34 +00:00
55017f35da
try to avoid l3_unscale() by using a table
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Originally committed as revision 6083 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-25 11:55:20 +00:00
f8347c4167
replace l3_unscale(1, exponents[pos]) by LUT
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Originally committed as revision 6082 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-25 10:00:30 +00:00
7ca1ed0d9c
maybe fixing the segfault on ARM
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Originally committed as revision 6081 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-25 02:40:52 +00:00
92c5cb62b0
10l typo
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Originally committed as revision 6074 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-24 12:35:53 +00:00
e90a72701e
avoid a few if(x==0) checks in the inner loops
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Originally committed as revision 6073 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-24 11:18:41 +00:00
6430ce0f72
optimize reorder_block() though this function seems to be executed too rarely for this to make much difference
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Originally committed as revision 6068 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-24 08:40:09 +00:00
a753e55bb5
simplify
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Originally committed as revision 6067 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-24 08:39:07 +00:00
a08a502eda
dont copy the whole GetBitContext around
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Originally committed as revision 6062 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-24 06:57:32 +00:00
3328ec6331
faster handling of zero coeffs in the low freq decode
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Originally committed as revision 6061 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-24 01:12:26 +00:00
3c693e7743
optimizing high freq decode
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Originally committed as revision 6060 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-24 01:01:39 +00:00
daf4cd9ac3
use memset() instead of slow c loops
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Originally committed as revision 6059 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-24 00:03:51 +00:00
c7aa36964e
simplify
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Originally committed as revision 6058 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-23 23:40:03 +00:00
acba32385b
fix arm asm compilation in mpegaudiodec
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Originally committed as revision 6057 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-23 23:39:27 +00:00
69fd15f871
MUL* for ARM code based on a patch by Siarhei Siamashka
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untested
Originally committed as revision 6050 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-22 13:25:09 +00:00
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
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Originally committed as revision 6049 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-22 12:07:02 +00:00
47a0cd7408
replacing MULH by asm for x86
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about 30% faster imdct36()
Originally committed as revision 6048 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-22 11:51:09 +00:00
5ab1972b53
indent preprocessor directives
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Originally committed as revision 6047 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-22 11:16:47 +00:00
355903f5a8
make high precission synth filter 3 times faster on x86
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Originally committed as revision 6046 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-22 11:11:04 +00:00
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)
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Originally committed as revision 6045 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-22 06:24:59 +00:00
eb6447766d
replace a few MULL by MULH
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Originally committed as revision 6039 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-21 12:12:43 +00:00
120aad7fe9
reorder butterflies to reduce memory load/store
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Originally committed as revision 6037 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-08-20 22:18:26 +00:00
55582f8de3
table contains vlc with 19 bits and 8*2 < 19
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Originally committed as revision 5658 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-07-07 10:50:14 +00:00
267f7edcd1
(f)printf --> av_log conversion
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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
5509bffa88
Update licensing information: The FSF changed postal address.
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Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-01-12 22:43:26 +00:00
fb9cb0b8c4
get_vlc -> get_vlc2 transition.
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Originally committed as revision 4828 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-01-08 19:31:21 +00:00
bb270c0896
COSMETICS: tabs --> spaces, some prettyprinting
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Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-22 01:10:11 +00:00
115329f160
COSMETICS: Remove all trailing whitespace.
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Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-17 18:14:38 +00:00
d9b1c197e5
QDM2 compatible decoder
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Originally committed as revision 4649 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-10-18 20:16:43 +00:00
e6885654eb
Reverse patch 1.59->1.60, it break mp3 in ffplay and ffmpeg
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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
83254e245c
removed unused CONFIG_AUDIO_NONSHORT
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Originally committed as revision 4633 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-10-12 22:37:42 +00:00
c26ae41db2
adding a few const
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Originally committed as revision 4337 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-06-01 21:19:00 +00:00
02af2269c0
check for error
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Originally committed as revision 4183 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-05-05 20:05:41 +00:00
f86f4481d8
cast to uint32 as the table is uint32_t, this also worksaround a gcc or libc bug related to frexp()
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Originally committed as revision 3997 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-03-02 20:46:06 +00:00
88730be651
kill warnings patch by (Måns Rullgård <mru inprovide com>)
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Originally committed as revision 3977 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-02-24 19:08:50 +00:00
d2a7718df9
Multichannel mp3 in mp4 support ISO/IEC 14496-3:2001/FPDAM 3 (MP3onMP4)
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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
44f1698a38
merge a few shifts into the dequantization, faster and more accurate, lets hope it doesnt overflow
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Originally committed as revision 3930 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-02-03 03:28:27 +00:00
125d624610
optimizing imdct12
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Originally committed as revision 3929 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-02-02 22:38:28 +00:00
ce4a29c066
optimize antialias
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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
d04728bb57
faster, simpler and more accurate l3_unscale()
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Originally committed as revision 3924 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-02-01 23:43:07 +00:00
711ae726f7
optimizing imdct36()
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Originally committed as revision 3923 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-02-01 21:27:18 +00:00
a3a5f4d6c3
support 32bit output for the mpeg audio decoder
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Originally committed as revision 3910 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-31 12:16:21 +00:00
b696d2a676
more accurate dequant of near zero coefficients
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Originally committed as revision 3909 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-31 04:06:47 +00:00
84af4a7ee6
10l (missing overflow check)
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Originally committed as revision 3908 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-31 03:14:22 +00:00
093c6e50c9
10l (didnt test code after cvs up ...)
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Originally committed as revision 3904 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-30 14:10:30 +00:00
a7a858996f
dithering for the mpeg audio decoder
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Originally committed as revision 3903 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-30 14:04:56 +00:00
bf1f4da01f
exported ff_mpa_synth_filter for upcoming qdm2 decoder
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Originally committed as revision 3897 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-28 19:54:10 +00:00
1ede228a4f
Decode MP3 in ADU format
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Originally committed as revision 3839 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-15 14:59:47 +00:00
2fc8ea249f
dissallow sprintf
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Originally committed as revision 3823 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-12 00:59:42 +00:00
caa336b4cc
common.c -> bitstream.c (and the single non bitstream func -> utils.c)
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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
073c2593c9
Memory leak fix patch by (Burkhard Plaum <plaum >at< ipf.uni-stuttgart )dot( de>)
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Originally committed as revision 3717 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-11-27 18:10:06 +00:00
491c4a1005
warning fix
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Originally committed as revision 3258 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-06-26 10:09:58 +00:00
53db1cae1c
data_size = 0 cleanup
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Originally committed as revision 3146 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-05-21 14:37:16 +00:00
8d1f2ba5e1
static allocation rewrite (old code was plain a broken mess)
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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
2caa92d935
fixes by Gildas Bazin <gbazin at altern dot org>
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Originally committed as revision 2745 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-02-04 15:49:55 +00:00
ac806113fe
10l
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Originally committed as revision 2726 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-01-26 19:14:02 +00:00
84f986c0f4
lrintf patch by ("Steven M. Schultz" <sms at 2BSD dot COM>)
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Originally committed as revision 2680 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-01-08 23:51:23 +00:00
a1e257b231
optimize compute_antialias() and add a floating point based alternative (2x faster)
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Originally committed as revision 2679 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-01-08 21:08:57 +00:00
962d6ae6c5
exported mpa_decode_header for new parser API
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Originally committed as revision 2491 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-11-10 15:21:16 +00:00
98ce5991d7
update sub_id in mpegaudio decoding (might need same method as MPEG2VIDEO too ?)
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Originally committed as revision 2238 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-09-08 22:49:26 +00:00
80783dc2c2
CODEC_ID_MP3LAME is obsolete
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Originally committed as revision 2232 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-09-08 22:04:29 +00:00
8c5b5683ae
fixed audio frame buffering problem (should correct problems on some streams) - faster synthesis filter - prototype 'parse_only' support
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Originally committed as revision 2173 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-08-28 13:38:06 +00:00
228ef9dde1
memmove fixes (Jon Burgess)
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Originally committed as revision 2157 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-08-24 22:01:33 +00:00
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)
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Originally committed as revision 1690 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-03-18 17:22:23 +00:00
983e3246b7
per file doxy
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Originally committed as revision 1634 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-03-06 11:32:04 +00:00
0c1a9edad4
* UINTX -> uintx_t INTX -> intx_t
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Originally committed as revision 1578 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-02-11 16:35:48 +00:00
5c91a6755b
* static,const,compiler warning cleanup
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Originally committed as revision 1567 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-02-10 09:35:32 +00:00
68f593b484
GetBitContext.size is allways multiplied by 8 -> use size_in_bits to avoid useless *8 in a few inner loops
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Originally committed as revision 1486 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-01-21 17:34:12 +00:00
ef9f730675
C99 initializers and kill warnings patch by (mru at users dot sourceforge dot net (Måns Rullgård))
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Originally committed as revision 1474 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-01-19 18:30:29 +00:00
855ea723b0
* two functions to handle allocation of static data more simple
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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
b587a7cb2b
vc++ sucks, found by ("csharprules" <csharprules at hotmail dot com>)
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Originally committed as revision 1160 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-11-04 20:57:08 +00:00
3625e88ab7
* resync without endless loop
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Originally committed as revision 849 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-08-09 10:43:02 +00:00
8db1a1dde0
new bitstream reader API (old get_bits() based one is emulated and will still be supported in the future cuz its simpler)
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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
20695ec921
Minor warning cleanup.
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Originally committed as revision 654 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-06-03 11:16:11 +00:00
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)
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Originally committed as revision 634 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-06-01 14:34:29 +00:00
cd4af68ad5
* started to cleanup name clashes for onetime compilation
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Originally committed as revision 617 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-27 16:42:14 +00:00
fad9f495c0
removed invalid buffer handling
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Originally committed as revision 604 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-26 14:41:53 +00:00
ff4ec49e64
license/copyright change
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Originally committed as revision 599 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-25 22:45:33 +00:00
59d3e367a8
fixed incorrect global gain - slightly increased precision of n^(4/3) table
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Originally committed as revision 557 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-21 21:07:47 +00:00
747a67fbab
fixed one overflow problem
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Originally committed as revision 553 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-20 21:15:53 +00:00
f9ed4f8894
put all integer init code to compute n^(4/3) - memory alloc and header fixes
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Originally committed as revision 518 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-18 22:58:08 +00:00
4b1f4f236b
- Versions defined for libav/libavcodec.
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- 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
10bb7023a2
- Added force_pts to av_write_packet() to be able to force PTS, this helps
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(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
27a3e2c5e0
another bitstream reader code (faster on intel cpus) - patch by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 252 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-01-10 00:56:05 +00:00
92d24f49f8
* fixed decoding busy loop
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Originally committed as revision 203 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-10-31 19:40:53 +00:00
2d83f323d6
* and finaly avoid deadlock at the end of audio stream
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Originally committed as revision 183 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-10-23 20:20:01 +00:00
de5123dc35
* fixes to avoid crash when broken mp3 header is found
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Originally committed as revision 182 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-10-23 19:58:30 +00:00
c152c98327
* simple fix to avoid memcpy with len < 0
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Originally committed as revision 180 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-10-23 19:03:33 +00:00
239c2f4cd0
added completely new mpeg audio decoder (integer only, free format support, lsf/mpeg25 support, high/low precision support, simpler code)
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Originally committed as revision 117 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-09-15 22:40:28 +00:00
de6d9b6404
Initial revision
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Originally committed as revision 5 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-07-22 14:18:56 +00:00
Michael Niedermayer
Aurelien Jacobs
Steve L'Homme
Diego Biurrun
Benjamin Larsson
Roberto Togni
Alex Beregszaszi
Måns Rullgård
Burkhard Plaum
Steven M. Schultz
Fabrice Bellard
Zdenek Kabelac
Falk Hüffner
Juanjo