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78 Commits

Author SHA1 Message Date
Måns Rullgård
49bd8e4b84 Fix grammar errors in documentation 
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-30 15:38:06 +00:00
Måns Rullgård
79aec75792 flacenc: convert VLA to fixed size 
Originally committed as revision 23744 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-23 21:22:56 +00:00
Stefano Sabatini
2874c81cc8 Replace all remaining occurrences of AVERROR_NOMEM with 
AVERROR(ENOMEM).

AVERROR_NOMEM is deprecated and will be dropped at the next libavutil
major bump.

Originally committed as revision 22791 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-03 14:15:00 +00:00
Stefano Sabatini
72415b2adb Define AVMediaType enum, and use it instead of enum CodecType, which 
is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-30 23:30:55 +00:00
Justin Ruggles
fde82ca7e4 Move autocorrelation function from flacenc.c to lpc.c. Also rename the 
corresponding dsputil functions and remove their dependency on the FLAC
encoder.
Fixes Issue1486.

Originally committed as revision 20266 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-10-17 21:00:39 +00:00
Reimar Döffinger
b5f09d31c2 Make sample_fmts and channel_layouts compound literals const to reduce size of 
.data section.

Originally committed as revision 19787 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-06 09:15:07 +00:00
Måns Rullgård
63613fe615 Replace WORDS_BIGENDIAN with HAVE_BIGENDIAN 
Originally committed as revision 19508 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-26 12:20:04 +00:00
Justin Ruggles
0bc08ed941 flacenc: write initial blocksize to STREAMINFO header instead of current 
blocksize.

Originally committed as revision 18532 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-16 02:28:49 +00:00
Bobby Bingham
0aed5e9fb8 Skip loop iterations which are no-ops due to data1[-lag..-1] being zero. 
Originally committed as revision 18498 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-13 18:07:02 +00:00
Jai Menon
437f884da6 flacenc : do not #include libavutil/lls.h since lpc code is now 
separate.

Originally committed as revision 18495 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-13 16:23:54 +00:00
Stefano Sabatini
9106a698e7 Rename bitstream.h to get_bits.h. 
Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-13 16:20:26 +00:00
Justin Ruggles
0fb2182d46 add a function to calculate a more accurate estimate for maximum FLAC 
frame size and use the function in the FLAC decoder and FLAC encoder

Originally committed as revision 18092 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-21 01:54:31 +00:00
Justin Ruggles
f121622114 revert accidental unrelated change in last commit 
Originally committed as revision 18090 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-21 01:20:28 +00:00
Justin Ruggles
d4df4e5088 share sample rate and blocksize tables between the FLAC encoder and FLAC 
decoder

Originally committed as revision 18089 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-21 01:16:38 +00:00
Justin Ruggles
b9b4fc5e07 flacenc: remove unneeded variable, 'min_encoded_framesize' and use 
'min_framesize' instead

Originally committed as revision 18087 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-21 00:50:19 +00:00
Justin Ruggles
ad52941faa flacenc: remove unneeded context variable, 'ch_code' 
Originally committed as revision 18083 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-21 00:45:44 +00:00
Justin Ruggles
3159780b18 share channel mode constants between the FLAC decoder and FLAC encoder 
Originally committed as revision 18082 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-21 00:44:42 +00:00
Justin Ruggles
07d16e2ecf share some constants between the FLAC encoder and FLAC decoder 
Originally committed as revision 18041 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-03-19 03:04:21 +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
Justin Ruggles
6682ae42a4 write actual min and max frame size to FLAC header. update regression test checksum. 
Originally committed as revision 15331 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-14 22:25:50 +00:00
Justin Ruggles
a9f8587e15 write MD5 checksum to FLAC header. update regression tests. 
Originally committed as revision 15326 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-14 21:39:54 +00:00
Justin Ruggles
e1a12934c5 write number of samples in FLAC extradata. 
based on a patch by Mathieu Velten (matmaul gmail com).

Originally committed as revision 15324 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-14 20:00:36 +00:00
Justin Ruggles
f1f373c220 fix and simplify frame size check and reencoding in verbatim mode 
Originally committed as revision 14811 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-17 16:10:46 +00:00
Justin Ruggles
38c1a5c4d9 update my email address to one which does not depend on my service provider 
Originally committed as revision 14797 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-16 22:42:59 +00:00
Justin Ruggles
9045f5e72d cosmetics: adjust line breaks and vertical alignment 
Originally committed as revision 14795 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-16 21:32:03 +00:00
Justin Ruggles
56c07e2989 use limited range of lpc orders when quantizing coefficients 
Originally committed as revision 14794 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-16 21:24:06 +00:00
Ramiro Polla
c50da3ad6c flacenc, lpc: Move LPC code from flacenc.c to new lpc.[ch] files. 
Originally committed as revision 14790 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-16 17:18:20 +00:00
Ramiro Polla
51c796d012 flacenc: Allow more flexible shift calculation in LPC. 
Originally committed as revision 14789 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-16 17:03:57 +00:00
Peter Ross
fd76c37fd9 Modify all codecs to report their supported input and output sample format(s). 
Originally committed as revision 14482 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-31 10:47:31 +00:00
Ramiro Polla
6647ab80e3 bitstream: move put_sbits() from flacenc.c to bitstream.h and use it 
throughout libavcodec.

Originally committed as revision 14204 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-13 14:27:48 +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
Diego Biurrun
245976da2a Use full path for #includes from another directory. 
Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-09 11:56:36 +00:00
Stefano Sabatini
d5202e4fda Add long names to many AVCodec declarations. 
patch by Stefano Sabatini, stefano.sabatini-lala poste it

Originally committed as revision 13005 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-04-27 10:52:44 +00:00
Justin Ruggles
42ceeb5f3c remove redundant context variable 
Originally committed as revision 12642 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-31 00:29:52 +00:00
Justin Ruggles
fe790f89e8 Use 15-bit LPC precision by default. This generally gives better compression 
results. Also update Ogg regression test.

Originally committed as revision 12630 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-30 16:01:10 +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
Michael Niedermayer
a4195e68b6 assert() and note about odd len. 
Originally committed as revision 11884 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-09 14:45:36 +00:00
Michael Niedermayer
fa4ed8c10a optimize apply_welch_window() 
Originally committed as revision 11881 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-09 03:42:48 +00:00
Aurelien Jacobs
3abe5fbdc4 improve CRC API 
- don't export any global var
 - provide either generated or hardcoded tables

Originally committed as revision 11409 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-04 23:09:58 +00:00
Loren Merritt
90f0344165 remove a branch from an inner loop. 
1% faster flac encoding.

Originally committed as revision 10865 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-10-27 13:39:19 +00:00
Loren Merritt
286127c5dd div -> mul 
Originally committed as revision 10630 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-10-01 05:56:30 +00:00
Loren Merritt
b8de342919 simplify lpc 
Originally committed as revision 10628 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-30 03:36:13 +00:00
Loren Merritt
bfdd5bc1f1 unroll finite differences to avoid swapping registers. 
1.5x faster encode_residual_fixed().
overall flac encoding: 3% faster at compression_levels 0-2.

Originally committed as revision 10625 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-29 23:44:34 +00:00
Loren Merritt
a309dce75f encode_residual_fixed(): replace FIR with finite differences. 
4x faster order 2, 3.5x order 3, 3x order 4.
overall flac encoding: 35% faster at compression_levels 0-2, no effect at higher levels.

Originally committed as revision 10624 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-29 23:21:57 +00:00
Loren Merritt
6810b93a81 sse2 version of compute_autocorr(). 
4x faster than c (somehow, even though doubles only allow 2x simd).
overal flac encoding: 15-50% faster on core2, 4-11% on k8, 3-13% on p4.

Originally committed as revision 10621 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-29 22:31:18 +00:00
Loren Merritt
19b9c7cc66 was computing one more autocorrelation coefficient that was actually used 
Originally committed as revision 10613 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-29 07:43:52 +00:00
Loren Merritt
14bd2a9f25 replace brute force find_optimal_param() with a closed-form solution. 
overall flac encoding: 4-15% faster.
output is not identical to the previous algorithm due to occasional rounding
errors, but the differece is less than .0005% bitrate.

Originally committed as revision 10612 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-29 05:41:27 +00:00
Loren Merritt
f6215b1b06 gcc isn't smart enough to factor out duplicate stores 
Originally committed as revision 10611 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-29 01:54:25 +00:00
Loren Merritt
28e968c4a4 2.5x faster compute_autocorr() 
overall flac encoding: 15-50% faster on core2, 8-30% on k8, 2-20% on p4 (depending on compression_level)

Originally committed as revision 10606 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-28 06:06:18 +00:00
Loren Merritt
dc44d4ad64 unroll encode_residual_lpc(). speedup varies between 1.2x and 1.8x depending on lpc order. 
Originally committed as revision 10596 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-27 02:42:00 +00:00