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89 Commits

Author SHA1 Message Date
Josh Coalson
0cb2774a4a Add decoding support for variable block size FLAC files using the latest FLAC 
specification. Patch by Josh Coalson.

Originally committed as revision 10916 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-04 00:06:33 +00:00
Josh Coalson
e471443ab5 Add support for FLAC's new RICE2 entropy coding method. Patch by Josh Coalson. 
Originally committed as revision 10915 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-03 23:54:50 +00:00
Loren Merritt
d1a5c4216c 20% faster lpc, 6% overall flac decoding 
Originally committed as revision 10627 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-30 03:01:56 +00:00
Loren Merritt
08965b22e2 replace FIR with finite differences. 
3x faster decode_subframe_fixed().
overall flac decoding: 10% faster if file was encoded with fixed predictors.

Originally committed as revision 10626 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-30 02:12:03 +00:00
Loren Merritt
bd49d4fd49 optimize decode_subframe_lpc() 
50%/67%/43% faster on core2/k8/p4, making flac decoding overall 24%/25%/11% faster

Originally committed as revision 10586 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-25 23:31:13 +00:00
Alex Beregszaszi
5fc32c275e use get_bits1(..) instead get_bits(.., 1) 
Originally committed as revision 9999 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-09 00:13:31 +00:00
Benoit Fouet
71fd12253d add and remove some parentheses 
Originally committed as revision 9308 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-06-14 09:32:04 +00:00
Michael Donaghy
3cce801a0b fix 8- and 24-bit FLAC decoding 
Patch by Michael Donaghy %md401 A cam P ac P uk%
Original thread:
date: Jun 10, 2007 4:48 PM
subject: [FFmpeg-devel] [PATCH] Bugfix: decoding 8- and 24-bit FLAC files

Originally committed as revision 9286 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-06-12 07:59:43 +00:00
Reimar Döffinger
5484dad7f6 Fix crash when pred_order greater s->blocksize >> rice_order. 
Fixes http://sam.zoy.org/zzuf/lol-mplayer.flac

Originally committed as revision 7595 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-01-21 09:55:28 +00:00
Michael Niedermayer
ac66834c75 avcodec_decode_audio2() 
difference to avcodec_decode_audio() is that the user can pass the allocated size of the output buffer to the decoder and the decoder can check if theres enough space

Originally committed as revision 7518 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-01-14 23:50:06 +00:00
Aurelien Jacobs
17c90b9d62 flac: allow reading of full metadata headers from extradata 
Originally committed as revision 7161 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-11-23 22:22:03 +00:00
Diego Biurrun
b78e7197a8 Change license headers to say 'FFmpeg' instead of 'this program/this library' 
and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-10-07 15:30:46 +00:00
Aurelien Jacobs
75c998a219 force usage of ALT_BITSTREAM_READER where needed 
Originally committed as revision 6118 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-28 18:46:01 +00:00
Michael Niedermayer
9d82b0dda1 moving utf8 reading function to libavutil 
Originally committed as revision 5664 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-07-07 22:43:32 +00:00
Michael Niedermayer
c448303df6 seems i forgot to commit this simplification ... 
Originally committed as revision 5662 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-07-07 22:41:43 +00:00
Luca Barbato
0187178e07 fix 24bit flac support, revised from Thibaut Mattern <thibaut.mattern@gmail.com> 
Originally committed as revision 5507 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-06-21 00:21:26 +00:00
Michael Niedermayer
b865838ea2 switch flac to av_crc 
Originally committed as revision 5117 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-06 15:09:04 +00:00
Diego Biurrun
f038fe8b4a warning fixes by Luca Abeni, lucabe72 ##@## email ##.## it 
Originally committed as revision 4898 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-25 22:10:13 +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
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
1cef211dca AV_LOG_DEBUG vs. AV_LOG_ERROR 
Originally committed as revision 4559 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-09-05 09:28:46 +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
Loren Merritt
56b31a8ee2 10l (deallocated memory again) 
Originally committed as revision 3994 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-28 05:27:21 +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
Loren Merritt
09f20d3786 Fix a crash when multiple metadata packets are present. 
Originally committed as revision 3965 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-20 23:21:50 +00:00
Michael Niedermayer
db2fcbbdb3 10l (use of deallocated memory) 
Originally committed as revision 3936 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-02-04 11:53:35 +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
Alex Beregszaszi
41aecb13f3 skip_utf8, unused yet 
Originally committed as revision 3256 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-06-26 10:09:19 +00:00
Mike Melanson
3f1899a834 warning vigilance 
Originally committed as revision 3221 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-06-13 23:40:54 +00:00
Mike Melanson
9eda2f94c7 attempt to create some separation in the FLAC system with respect to 
demuxer and decoder layers by enabling the FLAC decoder to decode data
without needing the entire file, from start to finish

Originally committed as revision 3211 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-06-10 04:13:43 +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
Falk Hüffner
7906085fcc warning patrol 
Originally committed as revision 2925 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-03-24 23:32:48 +00:00
Zdenek Kabelac
62c438a241 * const warn elimintation 
Originally committed as revision 2845 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-03-05 14:08:33 +00:00
Michael Niedermayer
1e31d32c34 flac_flush() 
Originally committed as revision 2797 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-02-18 15:17:54 +00:00
Michael Niedermayer
0496a03413 simplify 
only change context if frame header is error-free, as some fields may not be stored in the frame header and so a single damaged frame-header may trash them

Originally committed as revision 2796 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-02-18 14:05:49 +00:00
Michael Niedermayer
9d65611096 crc8 checking, based upon a patch by (Miroslav Lichvar <lichvarm at phoenix dot inf dot upol dot cz>) 
less spam/av_log
fix synccode search
channel_order -> decorrelation_type (cosmetic i know, but the old name is too meaningless IMHO)
faster mid/side decorrelator based upon lifting transforms

Originally committed as revision 2793 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-02-18 04:10:52 +00:00
Michael Niedermayer
4fd125984b remove residual array, it isnt really needed 
Originally committed as revision 2792 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-02-18 02:00:55 +00:00
Michael Niedermayer
ac2570a8b0 flac fixes: 
fix data types of residual&decoded
fix twos complement bitfields
fix utf8 (no, utf8 is not the same as the simple and compact uvlc used in nut)
add truncated bitstream support, both ogg and flac demuxers in mplayer cvs provide incomplete frames, and furthermore it isnt possible to find frameboundaries in flac without decoding it completly
add escape-less golomb rice decoder (=flac style golomb rice) (ultra efficient, the longest vlc code is just 2^32-1 bits)
printf->av_log
fix bps for non independant channels
fix a few +-1 bugs
fix sample order for independant channels
fix data_size

Originally committed as revision 2791 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-02-18 01:49:30 +00:00
Michael Niedermayer
4f52c3126b flac decoder by (Alex Beregszaszi <alex at fsn dot hu>) 
Originally committed as revision 2790 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-02-18 01:22:05 +00:00