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130 Commits

Author SHA1 Message Date
Luca Barbato
0f5ad12ba2 flac: Use a local cache for decode_residual() 
About an additional 4% speedup.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2017-07-09 20:51:24 +02:00
Luca Barbato
15f1cc09a4 flac: Postpone unlikely condition checks 
About 2% speedup on gcc-6.3.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2017-07-09 20:49:57 +02:00
Alexandra Hájková
9c1e111406 flac: Convert to the new bitstream reader 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2017-07-09 20:47:53 +02:00
Diego Biurrun
d4c2103bd3 golomb: Convert to the new bitstream reader 2017-01-31 17:46:19 +01:00
Vittorio Giovara
def97856de lavc: AV-prefix all codec capabilities 
Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +01:00
Anton Khirnov
acc897e6b1 lavc: make avpriv_flac_is_extradata_valid() private on the next bump 2014-11-06 09:04:56 +01:00
Anton Khirnov
c070a87515 lavc: make avpriv_flac_parse_streaminfo() private on the next bump 2014-11-06 09:04:12 +01:00
Tristan Matthews
7703995a2e flac: Remove unused headers 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2014-09-26 10:33:01 -07:00
Anton Khirnov
5fdaf312c5 flac: make avpriv_flac_parse_block_header() inline 
This avoids all the ABI troubles associated with avpriv_.
Since this function is very small and does not depend on any tables,
making it inline should have no adverse effects.
 2014-05-28 07:48:30 +02:00
Diego Biurrun
b2bed9325d cosmetics: Group .name and .long_name together in codec/format declarations 2013-10-03 23:32:01 +02:00
Luca Barbato
0e78ef0f94 flac: use meaningful return values 2013-07-28 14:58:18 +02:00
Luca Barbato
39cc4c61de flacdec: drop unnecessary assert 
The condition cannot happen anymore.
 2013-05-16 14:05:46 +02:00
Diego Biurrun
63d744e2be av_log_missing_feature() ---> avpriv_report_missing_feature() 2013-03-13 20:42:21 +01:00
Anton Khirnov
759001c534 lavc decoders: work with refcounted frames. 2013-03-08 07:38:30 +01:00
Justin Ruggles
b8e9c99ef1 flac: decode directly to the user-provided AVFrame 2013-02-12 12:21:22 -05:00
Tim Walker
41244e13d5 flac: don't check the number of channels before setting the channel layout. 
This is unnecessary, as ff_flac_set_channel_layout can handle any number of channels.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-02-06 21:43:05 +01:00
Justin Ruggles
aef5150719 flac: only set channel layout if not previously set or on channel count change 
Fixes Bug 402
 2012-12-22 01:35:28 -05:00
Anton Khirnov
594d4d5df3 lavc: add a wrapper for AVCodecContext.get_buffer(). 
It will be useful in the upcoming transition to refcounted AVFrames.
 2012-12-04 21:41:59 +01:00
Justin Ruggles
a903f8f087 Include libavutil/channel_layout.h instead of libavutil/audioconvert.h 
Also reorder some other #include when applicable.
 2012-11-11 13:35:12 -05:00
Justin Ruggles
99d8686357 flacdec: do not warn on sample rate change 2012-11-01 11:29:16 -04:00
Justin Ruggles
90fcac0e95 flacdec: allow mid-stream channel layout change 
Although the libFLAC decoder cannot handle such a change, it is allowed by the
spec and could potentially occur with live streams.
 2012-11-01 11:29:16 -04:00
Justin Ruggles
268f8ba112 flacdec: use av_samples_* functions for sample buffer allocation 
Also, return an error on allocation failure.
 2012-11-01 11:29:16 -04:00
Diego Biurrun
8f4c414df6 Improve wording and spelling of av_log_missing_feature messages. 2012-10-23 10:28:40 +02:00
Diego Biurrun
717addecad Use proper return values in case of missing features 2012-10-12 20:56:54 +02:00
Mans Rullgard
44c56a1617 flacdec: simplify sample buffer handling 
Pass pointer to sample buffer instead of channel number to various
functions called from decode_subframe().  Also simplify a few
expressions within this function.
 2012-08-21 11:23:13 +01:00
Mans Rullgard
ea98507db0 flacdec: simplify loop in decode_residuals() 2012-08-21 11:23:13 +01:00
Anton Khirnov
36ef5369ee Replace all CODEC_ID_* with AV_CODEC_ID_* 2012-08-07 16:00:24 +02:00
Mans Rullgard
bf1cf4d5a5 flacdec: reverse lpc coeff order, simplify filter 
Reversing the lpc coefficient order simplifies indexing in
the filter.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-19 10:21:32 +01:00
Diego Biurrun
8eea8fdceb flac: Move flac functions shared between libraries to flac common code 
This fixes a number of flac-related build dependencies.
 2012-07-12 11:11:23 +02:00
Mans Rullgard
784514a4a8 flacdec: add planar output support 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-05 21:57:51 +01:00
Mans Rullgard
25accf93ad flacdec: move lpc filter to flacdsp 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-04 12:24:30 +01:00
Mans Rullgard
4a8528349f flacdec: split off channel decorrelation as flacdsp 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-04 12:24:30 +01:00
Mans Rullgard
87466f8124 flacdec: factor out code setting avctx->sample_fmt 2012-07-04 03:34:34 +01:00
Mans Rullgard
93e7ef9a24 flacdec: allocate sample buffers with av_malloc 
The buffers are only allocated once, although it can happen from
any of a few different places, so there is no need to use realloc.
Using av_malloc() ensures they are aligned suitably for SIMD
optimisations.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-04 03:30:01 +01:00
Mans Rullgard
0da301e105 flacdec: remove curr_bps from FLACContext 
This value does not need to be persistent across calls.
 2012-07-04 03:29:29 +01:00
Mans Rullgard
4719ea7e1e flacdec: remove redundant setting of avctx->sample_fmt 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-07-02 22:13:32 +01:00
Martin Storsjö
00c3b67b8a cosmetics: Align codec declarations 
Also break some long lines, remove codec function placeholder comments
and add spaces in sample/pixel format lists.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-04-06 22:37:38 +03:00
Justin Ruggles
62d5f9e5ca flacdec: set channel_layout based on channel count 
Channel layouts are specified in the FLAC format description at
http://flac.sourceforge.net/format.html

fixes Bug 209
 2012-02-22 20:14:00 -05:00
Ronald S. Bultje
52e4018be4 flac: fix infinite loops on all-zero input or end-of-stream. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-16 17:08:29 -08:00
Diego Biurrun
a8798c7eb9 Drop unnecessary av_uninit attributes from some variable declarations. 
Recent versions of gcc (4.4+) no longer give false positive warnings.
 2012-02-13 19:20:52 +01:00
Justin Ruggles
0eea212943 Add avcodec_decode_audio4(). 
Deprecate avcodec_decode_audio3().
Implement audio support in avcodec_default_get_buffer().
Implement the new audio decoder API in all audio decoders.
 2011-12-02 17:40:40 -05:00
Justin Ruggles
5bd0343bee flacdec: use av_get_bytes_per_sample() to get sample size 2011-10-29 16:05:25 -04:00
Anton Khirnov
d9cca9fc6a lavc: use avpriv_ prefix for some flac symbols used in lavf. 
Specifically, ff_flac_parse_streaminfo, ff_flac_is_extradata_valid and
ff_flac_parse_block_header
 2011-10-20 21:06:58 +02:00
Justin Ruggles
4c5e7b27d5 flacdec: fix buffer size checking in get_metadata_size() 
Adds an additional check before reading the next block header and avoids a
potential integer overflow when checking the metadata size against the
remaining buffer size.
 2011-09-26 15:29:45 -04:00
Anton Khirnov
ec6402b7c5 lavc: use designated initialisers for all codecs. 
It's more readable and less prone to breakage.
 2011-07-29 08:42:34 +02:00
Diego Biurrun
ad4cd0c2a4 doxygen: use Doxygen markup for authors and web links where appropriate 2011-07-15 02:01:21 +02:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Diego Elio Pettenò
d36beb3f69 Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf. 
None of these symbols should be accessed directly, so declare them as
hidden.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-26 16:08:45 +00:00
Michael Chinen
a4151444bd Define FLAC_MIN_FRAME_SIZE and use it in the FLAC decoder. 
Patch by Michael Chinen [mchinen at gmail]

Originally committed as revision 25916 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-12-07 14:58:34 +00:00
Michael Chinen
60a684939a Simplify the FLAC decoder now that it no longer has to parse arbitrary raw FLAC 
data thanks to the recently added FLAC parser.
Patch by Michael Chinen [mchinen at gmail]

Originally committed as revision 25915 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-12-07 14:57:02 +00:00