Alexandra Hájková
f5b7bd2a7c
imc: Convert to the new bitstream reader
8 years ago
Vittorio Giovara
41ed7ab45f
cosmetics: Fix spelling mistakes
...
Signed-off-by: Diego Biurrun <diego@biurrun.de>
9 years ago
Diego Biurrun
29c2d06d67
cosmetics: Drop empty comment lines
9 years ago
Vittorio Giovara
059a934806
lavc: Consistently prefix input buffer defines
...
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
9 years ago
Vittorio Giovara
def97856de
lavc: AV-prefix all codec capabilities
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Express bitfields more simply.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
9 years ago
Vittorio Giovara
7c6eb0a1b7
lavc: AV-prefix all codec flags
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Convert doxygen to multiline and express bitfields more simply.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
9 years ago
Andreas Cadhalpun
1410eeb6ea
imc: Use correct position for flcoeffs2 calculation
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flcoeffs2[pos] should be the log2 of flcoeffs1[pos].
flcoeffs1[0] can be 0 here, thus flcoeffs2[pos] gets set to -inf,
causing problems further down.
This seems to have been copied from imc_decode_level_coefficients in
commit 4eb4bb3
without updating the position.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
9 years ago
Janne Grunau
210921722b
imc: add required padding for GetBitContext buffer
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Fixes stack buffer overflow errors detected by address sanitizer in
fate-imc.
CC: libav-stable@libav.org
10 years ago
Vittorio Giovara
6a85dfc830
lavc: Replace av_dlog and tprintf with internal macros
10 years ago
Diego Biurrun
7f9f771eac
avcodec: Don't anonymously typedef structs
10 years ago
Vittorio Giovara
1ac5a29b2e
imc: fix order of operations in coefficients read
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Reported-by: Ruoyu <liangry@ucweb.com>
10 years ago
Diego Biurrun
c67b449beb
dsputil: Split bswap*_buf() off into a separate context
11 years ago
Diego Biurrun
b2bed9325d
cosmetics: Group .name and .long_name together in codec/format declarations
11 years ago
Kostya Shishkov
4eb4bb3a02
imc: support mode 1
11 years ago
Luca Barbato
bbf6a4aa20
imc: Catch a division by zero
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Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
12 years ago
Diego Biurrun
6d97484d72
avcodec: av_log_ask_for_sample() ---> avpriv_request_sample()
12 years ago
Anton Khirnov
759001c534
lavc decoders: work with refcounted frames.
12 years ago
Justin Ruggles
9b28e58357
imc/iac: decode directly to the user-provided AVFrame
12 years ago
Diego Biurrun
218aefce44
dsputil: Move LOCAL_ALIGNED macros to libavutil
12 years ago
Ronald S. Bultje
5959bfaca3
floatdsp: move butterflies_float from dsputil to avfloatdsp.
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This makes wmadec/enc, twinvq and mpegaudiodec (i.e. mp2/mp3)
independent of dsputil.
12 years ago
Anton Khirnov
594d4d5df3
lavc: add a wrapper for AVCodecContext.get_buffer().
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It will be useful in the upcoming transition to refcounted AVFrames.
12 years ago
Justin Ruggles
a903f8f087
Include libavutil/channel_layout.h instead of libavutil/audioconvert.h
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Also reorder some other #include when applicable.
12 years ago
Justin Ruggles
1c7a016153
imc: set channels to 1 instead of validating it
12 years ago
Justin Ruggles
3fca0d7210
iac/imc: use planar sample format
12 years ago
Diego Biurrun
1218777ffd
avcodec: Convert some commented-out printf/av_log instances to av_dlog
12 years ago
Diego Biurrun
6f6b0311a3
avcodec: Drop some silly commented-out av_log() invocations
12 years ago
Mans Rullgard
d752509b74
Use log2(x) instead of log(x) / log(2)
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Signed-off-by: Mans Rullgard <mans@mansr.com>
12 years ago
Anton Khirnov
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
12 years ago
Mans Rullgard
b40ea0f41d
imc: remove unused field IMCContext.one_div_log2
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Signed-off-by: Mans Rullgard <mans@mansr.com>
12 years ago
Mans Rullgard
bc90230b98
imc: fix size of a memset()
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IMCContext was changed from an array to a pointer in 66b84e4
,
but this memset() was not updated.
Signed-off-by: Mans Rullgard <mans@mansr.com>
12 years ago
Mans Rullgard
2b6804328e
imc: remove empty if() block
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Signed-off-by: Mans Rullgard <mans@mansr.com>
12 years ago
Kostya Shishkov
cac4760bf4
iac: generate codec tables as they are supposed to be
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Unlike its predecessor, Indeo Audio codec generates tables depending on
sampling rate. Previously decoder used pre-generated tables for 22050 Hz
which obviously doesn't work with other frequencies.
Many thanks to Maxim Poliakovsky for providing all needed information
for this.
13 years ago
Kostya Shishkov
c6061443f7
Indeo Audio decoder
13 years ago
Kostya Shishkov
34271cabac
imc: make IMDCT support stereo output
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This will be useful for Indeo Audio decoder which is almost the same
but supports stereo.
13 years ago
Kostya Shishkov
c45e2da617
imc: move channel-specific data into separate context
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This will be useful for Indeo Audio decoder which is almost the same
but supports stereo.
13 years ago
Kostya Shishkov
d073f122ea
imc: some cosmetics
13 years ago
Kostya Shishkov
f05b69a79f
fix typo in comment
13 years ago
Martin Storsjö
00c3b67b8a
cosmetics: Align codec declarations
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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>
13 years ago
Martin Storsjö
9cf0841ef3
dsputil: Add ff_ prefix to the dsputil*_init* functions
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Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Mans Rullgard
a1e98f198e
get_bits: remove A32 variant
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The A32 bitstream reader variant is only used on ARMv5 and for
Prores due to the larger bit cache this decoder requires.
In benchmarks on ARMv5 (Marvell Sheeva) with gcc 4.6, the only
statistically significant difference between ALT and A32 is
a 4% advantage for ALT in FLAC decoding. There is thus no (longer)
any reason to keep the A32 reader from this point of view.
This patch adds an option to the ALT reader increasing the bit
cache to 32 bits as required by the Prores decoder. Benchmarking
shows no significant change in speed on Intel i7. Again, the
A32 reader fails to justify its existence.
Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years ago
Justin Ruggles
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.
13 years ago
Justin Ruggles
a4998e448f
imc: return error codes instead of 0 for error conditions.
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This fixes a bug where the whole buffer was returned as decoded audio due to
*data_size not being set to zero and the return value being >= 0.
13 years ago
Justin Ruggles
08e5cd3810
imc: return meaningful error codes instead of -1
13 years ago
Justin Ruggles
0473f29b60
imc: do not set channel layout for stereo
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we only support decoding of mono imc
13 years ago
Justin Ruggles
7b7f47e733
imc: validate channel count
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ask for a sample if not mono
13 years ago
Justin Ruggles
95fee70d67
imc: check for ff_fft_init() failure
13 years ago
Justin Ruggles
86962b13f6
imc: check output buffer size before decoding
13 years ago
Justin Ruggles
e9362aaedf
imc: use DSPContext.bswap16_buf() to byte-swap packet data
13 years ago
Vitor Sessak
9d35fa520e
Add AVX FFT implementation.
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Signed-off-by: Reinhard Tartler <siretart@tauware.de>
14 years ago
Mans Rullgard
4538729afe
Move sine windows to a separate file
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These windows do not really belong in fft/mdct files and were
easily confused with the similarly named tables used by rdft.
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago