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37 Commits

Author SHA1 Message Date
Diego Biurrun
aaf47bcde7 Drop ALT_ prefix from BITSTREAM_READER_LE name. 
The prefix is a historic remnant that probably meant "alternative".
Now that the A32 bitstream reader has been dropped it makes no sense anymore.
 2011-12-22 16:51:23 +01:00
Mans Rullgard
3383a53e7d lavu: replace int/float punning functions 
The existing functions defined in intfloat_readwrite.[ch] are
both slow and incorrect (infinities are not handled).

This introduces a new header with fast, inline conversion
functions using direct union punning assuming an IEEE-754
system, an assumption already made throughout the code.

The one use of Intel/Motorola extended 80-bit format is
replaced by simpler code sufficient under the present
constraints (positive normal values).

The old functions are marked deprecated and retained for
compatibility.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-12-11 18:47:19 +00:00
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
add7b1140f binkaudio: expand quant_table to accommodate all possible values 2011-11-04 10:23:53 -04:00
Justin Ruggles
425a843505 binkaudio: change short to int16_t 2011-10-29 15:16:54 -04:00
Justin Ruggles
4f4e19480a binkaudio: only decode one block at a time. 
This prevents truncating output due to an output buffer that is too small for
all blocks. There is no limit on the number of blocks in a packet.
 2011-10-29 15:16:54 -04:00
Justin Ruggles
eaddd29e00 binkaudio: store interleaved overlap samples in BinkAudioContext. 
This fixes the requirement for the buffer size to be larger than the number of
samples actually decoded.
 2011-10-29 15:16:54 -04:00
Justin Ruggles
9f48039a37 binkaudio: pre-calculate quantization factors 2011-10-29 15:16:53 -04:00
Justin Ruggles
101ef19ef4 binkaudio: add some buffer overread checks. 
This stops decoding before overreads instead of after.
 2011-10-29 15:16:53 -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
Kostya
df64da3b1e bink: pass Bink version to audio decoder through extradata instead of codec_tag. 
This is needed because not all players (e.g. MPlayer) are able to distinguish
two different Bink audio decoders when codec_tag is set.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-07-06 14:52:02 +02:00
Vitor Sessak
9d35fa520e Add AVX FFT implementation. 
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
 2011-04-26 18:25:24 +02:00
Mans Rullgard
0aded9484d Move dct and rdft definitions to separate files 
This leaves fft.h with only the core FFT and MDCT definitions
thus making it more managable.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-20 17:15:33 +00:00
Mans Rullgard
26f548bb59 fft: remove inline wrappers for function pointers 
This removes the rather pointless wrappers (one not even inline)
for calling the fft_calc and related function pointers.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 19:49:18 +00:00
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
Peter Ross
ccfcddb3f2 Bink version 'b' audio decoder 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-02-25 15:24:35 -05:00
Peter Ross
8a8c283edd binkaudio: simplify frame_len_bits and frame_len calculation 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-02-25 15:24:35 -05:00
Peter Ross
a304def1dc binkaudio: remove unnecessary loop 
decode_init sets bands[0] == 2, so this loop always sets the band table
index (k) to zero.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-02-25 15:24:35 -05:00
Peter Ross
582ac86d19 binkaudio: perform band table scaling in decode_init 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-02-25 15:24:35 -05:00
Peter Ross
71f88b1f38 binkaudio: remove unused copy of AVCodecContext* 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-02-15 14:20:19 +00:00
Peter Ross
9806fbd535 binkaudio: fix channel count check 
Perform validity check on AVFormatContext.channels instead of
uninitialised field.

This fixes issue 2001.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-02-15 14:20:19 +00:00
Justin Ruggles
c73d99e672 Separate format conversion DSP functions from DSPContext. 
This will be beneficial for use with the audio conversion API without
requiring it to depend on all of dsputil.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-02-02 02:44:53 +00:00
Justin Ruggles
9d06d7bce3 Remove the add bias hack for the C version of DSPContext.float_to_int16_*(). 2011-01-28 00:07:35 +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
Stefano Sabatini
5d6e4c160a Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enum 
SampleFormat with AVSampleFormat.

Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-11-12 11:04:40 +00:00
Diego Biurrun
ba87f0801d Remove explicit filename from Doxygen @file commands. 
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-20 14:45:34 +00:00
Vitor Sessak
c2b774a04e Make code using 1d-DCT consistent with the API change 
Originally committed as revision 22792 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-03 15:04:15 +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
Peter Ross
b41ec742ea Make binkaudio work with ff_float_to_int16_interleave_c (martin at martin dot st) 
Originally committed as revision 22466 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-11 10:52:34 +00:00
Måns Rullgård
41ea18fb0d Give RDFT types more meaningful names 
Originally committed as revision 22290 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-07 21:47:44 +00:00
Måns Rullgård
1429224b04 Move FFT parts from dsputil.h to fft.h 
Originally committed as revision 22235 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-06 14:34:46 +00:00
Måns Rullgård
84dc2d8afa Remove DECLARE_ALIGNED_{8,16} macros 
These macros are redundant.  All uses are replaced with the generic
DECLARE_ALIGNED macro instead.

Originally committed as revision 22233 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-06 14:24:59 +00:00
Peter Ross
54063e37c1 Perform coefficient transformations in Bink Audio DCT decoder (issue1770) 
Originally committed as revision 22167 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-03 09:51:56 +00:00
Peter Ross
c8c77d8d97 Use reported_size to truncate final Bink Audio frame 
Originally committed as revision 21993 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-23 10:28:11 +00:00
Daniel Verkamp
e0ae359115 Fix compilation of binkaudio_rdft when dct is disabled 
Originally committed as revision 21903 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-19 20:51:12 +00:00
Daniel Verkamp
abafc87c46 Update binkaudio to new DECLARE_ALIGNED syntax 
Originally committed as revision 21573 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-31 15:07:25 +00:00
Peter Ross
c0d3f516cb Bink Audio decoder 
Originally committed as revision 21570 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-31 12:51:15 +00:00