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492 Commits

Author SHA1 Message Date
Michael Niedermayer
c55e637072 avcodec/ac3dec: Fix: runtime error: index -1 out of bounds for type 'INTFLOAT [2]' 
It seems dual mono with a LFE channel is not forbidden

Fixes: 1570/clusterfuzz-testcase-minimized-6455337349545984

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-14 15:30:08 +02:00
Michael Niedermayer
9351a156de avcodec/ac3dec: Keep track of band structure 
It is needed in some corner cases that seem not to be forbidden
Fixes: out of array index
Fixes: 1538/clusterfuzz-testcase-minimized-4696904925446144

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-13 20:36:33 +02:00
Muhammad Faiz
31f61b0d4f avcodec: do not use AVFrame accessor 
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
 2017-04-23 14:27:47 +07:00
Clément Bœsch
c66bd8f3ff Merge commit 'b57e38f52cc3f31a27105c28887d57cd6812c3eb' 
* commit 'b57e38f52cc3f31a27105c28887d57cd6812c3eb':
  ac3dsp: x86: Replace inline asm for in-decoder downmixing with standalone asm

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-22 12:49:29 +01:00
Clément Bœsch
e39d4ff150 Merge commit '43717469f9daa402f6acb48997255827a56034e9' 
* commit '43717469f9daa402f6acb48997255827a56034e9':
  ac3dsp: Reverse matrix in/out order in downmix()

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-22 11:29:46 +01:00
Clément Bœsch
4ac44520e5 Merge commit '8495d84f0101464b15517860db33e8605586d87e' 
* commit '8495d84f0101464b15517860db33e8605586d87e':
  ac3dec: Add some inline hints

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-15 21:58:13 +01:00
Clément Bœsch
151b5e4a53 Merge commit '3db51bf671defd47f2ec5ab67b11fb7730fb5e5a' 
* commit '3db51bf671defd47f2ec5ab67b11fb7730fb5e5a':
  ac3dec: Simplify skipping

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-15 21:57:57 +01:00
Clément Bœsch
2e3221c303 Merge commit 'f0ccc65bc9ab9ddf1366066395564c71bcc825ee' 
* commit 'f0ccc65bc9ab9ddf1366066395564c71bcc825ee':
  ac3dec: Split coupling-specific code from decode_audio_block()

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-15 21:56:47 +01:00
Clément Bœsch
7c4dbd1df9 Merge commit 'a5ebe5d1217942238c641c83b24ef1106e53934a' 
* commit 'a5ebe5d1217942238c641c83b24ef1106e53934a':
  ac3dec: Split spx-specific code from decode_audio_block()

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-15 21:43:59 +01:00
Jonathan Campbell
d5d474aea5 avcodec/ac3dec: add consistent noise generation option. 
use av_lfg_init_from_data() to seed AC-3 dithering from the AC-3 frame
data to make it consistent given the same AC-3 frame, if option is set.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-01-22 02:29:16 +01:00
Michael Niedermayer
cee1f4c069 avcodec/ac3dec: Check expacc 
this is somewhat a magic number, which can be understood from reading section
"7.1.2 Exponent Strategy" of the ac3 specification, in short:
Three exponents each represented as number 0-4 are grouped together and
base-5 encoded, so the maximal correct value is 25*4 + 5*4 + 4 = 124.

Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-11-03 22:05:46 +01:00
Justin Ruggles
b57e38f52c ac3dsp: x86: Replace inline asm for in-decoder downmixing with standalone asm 
Adds a wrapper function for downmixing which detects channel count changes
and updates the selected downmix function accordingly.

Simplification and porting to current x86inc infrastructure by Diego Biurrun.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-10-01 00:46:25 +02:00
Justin Ruggles
43717469f9 ac3dsp: Reverse matrix in/out order in downmix() 
Also use (float **) instead of (float (*)[2]). This matches the matrix
layout in libavresample so we can reuse assembly code between the two.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-10-01 00:45:55 +02:00
Nikolas Bowe
96cd6f672e avcodec/(e)ac3: Fix target_level for EAC3. 
Currently when using target_level with EAC3 it produces silence. This small patch fixes target_level for decoding EAC3.

Example:
ffmpeg -y -i /tmp/test.wav -acodec eac3 -dialnorm -14 -ac 6 -b:a 384000 /tmp/test.m2ts
ffmpeg -y -target_level -24 -i /tmp/test.m2ts -acodec pcm_s16le -f matroska /tmp/out.mkv
ffplay /tmp/out.mkv

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-09-15 12:18:55 +02:00
Luca Barbato
8495d84f01 ac3dec: Add some inline hints 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-07-29 18:46:48 +02:00
Luca Barbato
3db51bf671 ac3dec: Simplify skipping 
skip_bits_long() can skip up to 32-bit ranges.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-07-29 18:46:48 +02:00
Luca Barbato
f0ccc65bc9 ac3dec: Split coupling-specific code from decode_audio_block() 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-07-29 18:46:48 +02:00
Luca Barbato
a5ebe5d121 ac3dec: Split spx-specific code from decode_audio_block() 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-07-29 18:46:48 +02:00
Derek Buitenhuis
13b77e09c7 Merge commit '33275a0de05e9bc321f2537a2a67921fab81624f' 
* commit '33275a0de05e9bc321f2537a2a67921fab81624f':
  ac3dec: change logging of skipped E-AC-3 substreams.

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-08 23:07:01 +01:00
Michael Niedermayer
9ac154d1fa avcodec/ac3dec: Reset SPX when switching from EAC3 to AC3 
Fixes Ticket5319

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-04-25 04:08:21 +02:00
Tim Walker
33275a0de0 ac3dec: change logging of skipped E-AC-3 substreams. 
Change log level from warning to debug: the E-AC-3 "core"
substream can be successfully decoded without the additional
and dependent substreams, and their presence is already
indicated via avpriv_request_sample in ff_eac3_parse_header.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2016-04-02 14:06:40 +02:00
Michael Niedermayer
052e692e85 avcodec/ac3dec: Print the value of out of range exponents 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-12-24 20:47:25 +01:00
Ganesh Ajjanagadde
7b11eead1b avcodec/ac3: always use hardcoded tables 
The table in question is a 253 byte one. In fact, it turns out that
dynamic generation of the table results in an increased binary size.

Code compiled with GCC 5.2.0, x86-64 (size in bytes), before and after
patch:
old: 62321064 libavcodec/libavcodec.so.57
new: 62320536 libavcodec/libavcodec.so.57

Thus, it always make sense to statically allocate this.

Tested with FATE with/without --enable-hardcoded-tables.

Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
 2015-11-30 18:29:57 -05:00
Andreas Cadhalpun
957f92729a avcodec: drop 2 suffix from avpriv_ac3_parse_header2 
avpriv_ac3_parse_header was removed in commit 3dfb643.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-10-22 00:34:54 +02:00
Hendrik Leppkes
b27ddffbfb Merge commit 'dc70c19476e76f1118df73b5d97cc76f0e5f6f6c' 
* commit 'dc70c19476e76f1118df73b5d97cc76f0e5f6f6c':
  lavc: Drop deprecated request_channels related functions

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2015-09-05 16:42:44 +02:00
Vittorio Giovara
dc70c19476 lavc: Drop deprecated request_channels related functions 
Deprecated in 04/2011.
 2015-08-28 16:01:16 +02:00
Michael Niedermayer
94d68a41fa Merge commit '7c6eb0a1b7bf1aac7f033a7ec6d8cacc3b5c2615' 
* commit '7c6eb0a1b7bf1aac7f033a7ec6d8cacc3b5c2615':
  lavc: AV-prefix all codec flags

Conflicts:
	doc/examples/muxing.c
	ffmpeg.c
	ffmpeg_opt.c
	ffplay.c
	libavcodec/aacdec.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/ac3enc_float.c
	libavcodec/atrac1.c
	libavcodec/atrac3.c
	libavcodec/atrac3plusdec.c
	libavcodec/dcadec.c
	libavcodec/ffv1enc.c
	libavcodec/h264.c
	libavcodec/h264_loopfilter.c
	libavcodec/h264_mb.c
	libavcodec/imc.c
	libavcodec/libmp3lame.c
	libavcodec/libtheoraenc.c
	libavcodec/libtwolame.c
	libavcodec/libvpxenc.c
	libavcodec/libxavs.c
	libavcodec/libxvid.c
	libavcodec/mpeg12dec.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegaudiodec_template.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/nellymoserdec.c
	libavcodec/nellymoserenc.c
	libavcodec/nvenc.c
	libavcodec/on2avc.c
	libavcodec/options_table.h
	libavcodec/opus_celt.c
	libavcodec/pngenc.c
	libavcodec/ra288.c
	libavcodec/ratecontrol.c
	libavcodec/twinvq.c
	libavcodec/vc1_block.c
	libavcodec/vc1_loopfilter.c
	libavcodec/vc1_mc.c
	libavcodec/vc1dec.c
	libavcodec/vorbisdec.c
	libavcodec/vp3.c
	libavcodec/wma.c
	libavcodec/wmaprodec.c
	libavcodec/x86/hpeldsp_init.c
	libavcodec/x86/me_cmp_init.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 22:10:35 +02:00
Vittorio Giovara
7c6eb0a1b7 lavc: AV-prefix all codec flags 
Convert doxygen to multiline and express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +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
Michael Niedermayer
71258e5d87 avcodec/ac3dec: Put CONFIG* first in if() 
This may fix build failures with EAC3 disabled and is more consistent

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-03-26 15:41:27 +01:00
James Almer
bf2bd5b807 avcodec/ac3dec_fixed: fix compilation when ac3dec is disabled 
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
 2015-03-17 19:25:55 -03:00
Michael Niedermayer
94ccbad488 avcodec/ac3dec: Fix undefined shifts 
Found-by: Clang -fsanitize=shift
Reported-by: Thierry Foucu <tfoucu@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-03-15 04:30:41 +01:00
Christophe Gisquet
73ebbfdff0 ac3dec: cosmetics 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-03-14 15:25:42 +01:00
Christophe Gisquet
c4bf3833f4 ac3_fixed: fix computation of spx_noise_blend 
It was set to 1 instead of sqrt(3)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-03-14 14:05:22 +01:00
Christophe Gisquet
b083440060 ac3_fixed: fix out-of-bound read 
Should also improve decoding, but actually doesn't...

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-03-14 14:05:18 +01:00
Michael Niedermayer
a94eba6f0c Merge commit '7f9f771eac0d37a632e0ed9bd89961d57fcfb7e0' 
* commit '7f9f771eac0d37a632e0ed9bd89961d57fcfb7e0':
  avcodec: Don't anonymously typedef structs

Conflicts:
	libavcodec/alac.c
	libavcodec/cinepak.c
	libavcodec/cscd.c
	libavcodec/dcadec.c
	libavcodec/g723_1.c
	libavcodec/gif.c
	libavcodec/iff.c
	libavcodec/kgv1dec.c
	libavcodec/libopenjpegenc.c
	libavcodec/libspeexenc.c
	libavcodec/ra288.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-02-14 21:18:17 +01:00
Diego Biurrun
7f9f771eac avcodec: Don't anonymously typedef structs 2015-02-14 10:13:49 -08:00
Paul B Mahol
c93a7b264f avcodec/ac3dec: use init_get_bits8() 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2015-02-04 09:45:41 +00:00
Michael Niedermayer
8bce5c8e74 avcodec/ac3dec: Use avpriv_float_dsp_alloc() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-20 22:30:48 +01:00
Jean-Francois Thibert
12df9b9a15 Improved AC3 decoder level support (heavy drc, dialnorm) 
Added support for AC3 heavy dynamic range compression used
to restrict the output range and added a setting to specify
the output target level and use the dialog normalization
field to apply it in the digital domain.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-27 14:31:39 +02:00
Michael Niedermayer
35bb74900b Merge commit 'c67b449bebbe0b35c73b203683e77a0a649bc765' 
* commit 'c67b449bebbe0b35c73b203683e77a0a649bc765':
  dsputil: Split bswap*_buf() off into a separate context

Conflicts:
	configure
	libavcodec/4xm.c
	libavcodec/ac3dec.c
	libavcodec/ac3dec.h
	libavcodec/apedec.c
	libavcodec/eamad.c
	libavcodec/flacenc.c
	libavcodec/fraps.c
	libavcodec/huffyuv.c
	libavcodec/huffyuvdec.c
	libavcodec/motionpixels.c
	libavcodec/truemotion2.c
	libavcodec/x86/Makefile
	libavcodec/x86/dsputil_init.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-23 13:31:26 +02:00
Diego Biurrun
c67b449beb dsputil: Split bswap*_buf() off into a separate context 2014-06-22 18:22:31 -07:00
Michael Niedermayer
c00f368caa avcodec/ac3dec: use av_freep() for saftey 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-02 04:38:16 +02:00
Michael Niedermayer
91b105ce5b avcodec/ac3dec: avoid #if, use if() instead, its cleaner and shorter 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Nedeljko Babic <nbabic@mips.com>
 2014-04-01 19:58:47 +02:00
Michael Niedermayer
b219142921 avcodec/ac3: rename identifier used to select the fixed point variant 
the CONFIG_ prefix is used by configure, using it for other things
is potentially confusing to the reader

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Nedeljko Babic <nbabic@mips.com>
 2014-04-01 19:58:31 +02:00
Nedeljko Babic
696e34a6e1 libavcodec: Implementation of AC3 fixedpoint decoder 
Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-01 19:01:57 +02:00
Michael Niedermayer
eadc21cfe7 avcodec/ac3_parser: add avpriv_ac3_parse_header2() and use it in libavcodec 
The new function has the ability to allocate the structure, allowing it to grow
without needing major bumps

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-03-01 01:51:01 +01:00
Michael Niedermayer
1db87da351 Merge commit '9cd4bc41760f8ad879e248920eacbe1e7757152c' 
* commit '9cd4bc41760f8ad879e248920eacbe1e7757152c':
  ac3dec: set AV_FRAME_DATA_DOWNMIX_INFO side data.

Conflicts:
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-16 02:18:58 +01:00
Tim Walker
9cd4bc4176 ac3dec: set AV_FRAME_DATA_DOWNMIX_INFO side data. 2014-02-15 22:25:00 +01:00
Michael Niedermayer
3c7195a969 Merge commit '23d461fe8714a20ee5e6929f22c61512fdda568e' 
* commit '23d461fe8714a20ee5e6929f22c61512fdda568e':
  ac3dec: Allow asymmetric application of DRC when drc_scale > 1

Conflicts:
	libavcodec/ac3dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-01-30 14:55:03 +01:00