37390d5cca
apedec: allow the user to set the maximum number of output samples per call
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It makes sense in some cases to split up the output packet to save on memory
usage (ape frames can be very large), but the current/default size is
arbitrary. Allowing the user to configure this gives more flexibility and
requires minimal additional code.
2012-02-07 10:01:15 -05:00
39575eead2
apedec: do not unnecessarily zero output samples for mono frames
2012-02-07 10:01:15 -05:00
1d3c672d27
apedec: allocate a single flat buffer for decoded samples
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This will allow the decoder to return samples for the full packet, and it also
makes the decoded buffer pointers aligned.
2012-02-07 10:01:14 -05:00
32c61400c0
apedec: use sizeof(field) instead of sizeof(type)
2012-02-07 10:01:14 -05:00
b60620bf7e
apedec: 8bit and 24bit support
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-02-04 14:03:20 -05:00
22c0babbb2
apedec: remove unneeded #include of get_bits.h and associated macro
2012-02-02 21:07:01 -05:00
e4169612a1
apedec: av_fast_malloc() instead of av_realloc()
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av_realloc() does not guarantee alignment, which is required for
DSPContext.bswap_buf().
2012-02-02 21:07:01 -05:00
0759c8eb10
apedec: fix handling of packet sizes that are not a multiple of 4 bytes
2012-02-02 21:07:01 -05:00
aaf47bcde7
Drop ALT_ prefix from BITSTREAM_READER_LE name.
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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
0eea212943
Add avcodec_decode_audio4().
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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
644bff6c9b
apedec: fix signed integer overflows
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This bit manipulation is equivalent but avoids undefined
shifts and overflows.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-11-26 11:38:41 +00:00
c298b2b8db
apedec: consume the whole packet when copying to the decoder buffer.
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This avoids artifically consuming a partial packet but ignoring remaining data
in subsequent calls.
2011-11-10 10:25:47 -05:00
de157f2118
apedec: do not needlessly copy s->samples to nblocks.
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also move nblocks to the local scope where it is used.
2011-11-10 10:25:47 -05:00
4315c7d35a
apedec: check output buffer size after calculating actual output size
2011-11-10 10:25:47 -05:00
ad17207b51
apedec: remove unneeded entropy decoder normalization.
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The decoder already skips data at the end of the packet without this.
Also remove 2 APEContext fields that were only used for the end-of-frame
normalization.
2011-11-10 10:25:47 -05:00
9a33264478
apedec: assert that s->samples is not negative before trying to decode
2011-10-28 11:47:29 -04:00
0927154d37
apedec: use FFALIGN macro for internal data buffer size
2011-10-28 11:47:28 -04:00
5b8009f4c8
apedec: do not keep incrementing the input data pointer past the end of the
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buffer during entropy decoding.
The pointer address could overflow, which would likely segfault. Instead set
the context error flag to indicate that the decoder tried to read past the
end of the packet data.
2011-10-28 11:47:28 -04:00
a4c32c9a63
apedec: check for input buffer overflow while reading frame header
2011-10-28 11:47:28 -04:00
fd244ae3a0
apedec: use unsigned int for offset
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avoids implementation-defined unsigned-to-signed conversion and simplifies
the bounds checking.
2011-10-28 11:47:28 -04:00
89ec474a43
apedec: remove pointless increment of 'buf'
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The variable is not used anymore at that point.
2011-10-28 11:47:28 -04:00
52d4fb2a3d
apedec: set s->currentframeblocks after validating nblocks
2011-10-28 11:47:28 -04:00
2cab578489
apedec: use unsigned int for 'nblocks' and make sure that it's within int range
2011-10-28 11:47:27 -04:00
b7e5145759
apedec: do not set s->samples until after validation.
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This prevents errors and/or invalid writes in the next decode call due to
s->samples still being negative.
2011-10-28 11:47:27 -04:00
11ca8b2d74
apedec: check for data buffer realloc failure
2011-10-28 11:47:27 -04:00
91b71460b5
apedec: return meaningful error values in ape_decode_frame()
2011-10-28 11:47:27 -04:00
c6defb41ef
apedec: correct an error message
2011-10-28 11:47:27 -04:00
da55e0980e
apedec: cosmetics
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break some excessively long lines and remove space after '*'
2011-10-28 11:46:41 -04:00
f64e0a2f37
apedec: return meaningful error codes from ape_decode_init()
2011-10-28 11:41:39 -04:00
7500781313
apedec: check for filter buffer allocation failure
2011-10-28 11:41:39 -04:00
b9d6b02713
apedec: use memcpy for pseudo-stereo mode
2011-10-28 11:41:39 -04:00
3c25209bd9
apedec: remove unneeded check for zero-size packet.
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This is already checked by avcodec_decode_audio3().
2011-10-28 11:41:39 -04:00
ec6402b7c5
lavc: use designated initialisers for all codecs.
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It's more readable and less prone to breakage.
2011-07-29 08:42:34 +02:00
21a19b7912
doxygen: Prefer member groups over grouping into modules
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Before this, almost all module groups have been used for grouping functions
and fields in structures semantically. This causes them to not appear
properly in the file documentation and needlessly clutters up the "Modules"
index.
Additionally, this commit streamlines some spelling and appearances.
2011-07-02 13:52:29 +02:00
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
737eb5976f
Merge libavcore into libavutil
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It is pretty hopeless that other considerable projects will adopt
libavutil alone in other projects. Projects that need small footprint
are better off with more specialized libraries such as gnulib or rather
just copy the necessary parts that they need. With this in mind, nobody
is helped by having libavutil and libavcore split. In order to ease
maintenance inside and around FFmpeg and to reduce confusion where to
put common code, avcore's functionality is merged (back) to avutil.
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
2011-02-15 16:18:21 +01:00
c2fcd0a7a4
Replace remaining occurrences of deprecated CH_* with AV_CH_*
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-02-06 08:26:12 -05:00
d36beb3f69
Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
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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
5d6e4c160a
Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enum
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SampleFormat with AVSampleFormat.
Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-11-12 11:04:40 +00:00
df92772c55
apedec: add flush function
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Originally committed as revision 23900 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-30 09:33:59 +00:00
ba87f0801d
Remove explicit filename from Doxygen @file commands.
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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
72415b2adb
Define AVMediaType enum, and use it instead of enum CodecType, which
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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
4689ac41e9
16l trocadero: don't forget to free frame data buffer in APE decoder
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Originally committed as revision 21910 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-02-19 22:23:55 +00:00
b1159ad928
refactor and optimize scalarproduct
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29-105% faster apply_filter, 6-90% faster ape decoding on core2
(Any x86 other than core2 probably gets much less, since this is mostly due to ssse3 cachesplit avoidance and I haven't written the full gamut of other cachesplit modes.)
9-123% faster ape decoding on G4.
Originally committed as revision 20739 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-05 15:09:10 +00:00
d09f65c7ec
1-13% faster apply_filter, 1-3% faster ape decoding on core2
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Originally committed as revision 20729 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-04 15:12:09 +00:00
1e68cefe54
100l trocadero: call emms_c() after doing decoding with SIMD in APE decoder
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Originally committed as revision 20727 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-04 08:18:13 +00:00
2ae87a6d5a
avoid an unpredictable branch
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20% faster predictor_update_filter, .4-4% faster ape decoding on core2
Originally committed as revision 20720 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-03 17:48:54 +00:00
36373cde20
inline to allow constant propagation
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50% faster predictor_update_filter, 1-10% faster ape decoding on core2
Originally committed as revision 20719 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-03 17:44:08 +00:00
76267e4e90
Implement missing case for decoding samples with large pivot value in APE
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decoder.
This fixes issue 1555
Originally committed as revision 20560 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-20 07:49:53 +00:00
6f24cc0b2a
Monkey's Audio uses subframes too, declare that in its capabilities
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Originally committed as revision 19883 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-16 16:18:18 +00:00
Justin Ruggles
Paul B Mahol
Diego Biurrun
Mans Rullgard
Anton Khirnov
Reinhard Tartler
Diego Elio Pettenò
Stefano Sabatini
Kostya Shishkov
Loren Merritt