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181 Commits

Author SHA1 Message Date
Andreas Rheinhardt
a247ac640d avcodec: Constify AVCodecs 
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2021-04-27 10:43:15 -03:00
Anton Khirnov
e15371061d lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 
They are not properly namespaced and not intended for public use.
 2021-01-01 14:14:57 +01:00
Andreas Rheinhardt
11fd96c1dc avcodec/atrac3: Make decoders init-threadsafe 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-12-08 17:51:47 +01:00
Andreas Rheinhardt
5d503c91f3 avcodec/atrac3: Use symbols table 
Expressions like array[get_vlc2()] can be optimized by using a symbols
table if the array is always the same for a given VLC. This requirement
is fulfilled for several VLCs used by ATRAC3, therefore this commit
implements this. This comes without any additional costs when using
ff_init_vlc_from_lengths() as one can then remove the codes tables.

While at it, remove the arrays of pointers to the individual arrays and
put all lengths+symbol pairs in one big array.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-12-08 17:51:47 +01:00
Paul B Mahol
d29a9b8891 avcodec/atrac3: increase max block align size 
Fixes decoding of lossy part of advanced lossless atrac3.
Regression since f09151fff9
 2020-11-21 22:13:10 +01:00
Andreas Rheinhardt
38afc6858c avcodec/atrac3: Use least max_depth for get_vlc2() 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-10-27 10:31:16 +01:00
Andreas Rheinhardt
2d4f878626 avcodec/atrac3: Inline constants 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-10-27 10:30:28 +01:00
Andreas Rheinhardt
e4eeb851fd avcodec/atrac3: Don't use too big VLC tables 
The longest code of any of the VLC tables used is eight bits long, so
using nine bits long VLC tables is wasteful. Furthermore, there are only
seven VLC tables used, yet the code up until now made it look like there
should be eight. This has been corrected, too.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-10-27 10:19:38 +01:00
Andreas Rheinhardt
0b7474a591 avcodec/atrac3: Avoid indirection when calling float dsp function 
Do this by only keeping the only function pointer from
the AVFloatDSPContext that is needed lateron.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-09-18 02:51:15 +02:00
Andreas Rheinhardt
f9ff4b252f avcodec/atrac3: Cleanup generically after init failure 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-09-18 02:51:10 +02:00
Michael Niedermayer
f09151fff9 avcodec/atrac3: Check for huge block aligns 
The largest documented frame size = block align is 1024 bytes
(https://wiki.multimedia.cx/index.php/ATRAC3)

Without a limit this can allocate arbitrary memory and trigger OOM
Fixes: OOM
Fixes: 18337/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC3_fuzzer-5763861478637568
Fixes: 18556/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC3AL_fuzzer-5646183334936576

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-11-20 15:50:15 +01:00
Michael Niedermayer
2acbbe2623 avcodec/atrac3: Check block_align 
Fixes: Infinite loop
Fixes: 17620/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC3_fuzzer-5086123012915200

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-09-26 21:02:34 +02:00
Michael Niedermayer
e976e68fc5 avcodec/atrac3: Check init_get_bits8() for failure 
This is more for correctness than actually fixing a missing error path

Fixes CID1399967

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-03-30 22:13:38 +02:00
Carl Eugen Hoyos
b47582f43a lavc/atrac3: Constify a pointer declaration. 
Silences an "assignment discards ‘const’ qualifier" warning.
 2017-02-11 16:35:22 +01:00
Paul B Mahol
280a40dd27 avcodec: add ATRAC Advanced Lossless decoders 
Only lossy part is decoded for now.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2017-02-11 12:00:38 +01:00
bnnm
c61b28e042 avcodec/atrac3: Add multichannel joint stereo ATRAC3 
Multichannel joint stereo simply interleaves stereo pairs (6ch: 2ch + 2ch + 2ch), so each pair is decoded separatedly.

***

To test my changes, I converted examples to wav with ffmpeg.exe (old and new), and compared them to see they are byte-exact.

Regular 2ch files (JS and normal) were straightforward to test.

For multichannel, to check each JS pair is correctly decoded separatedly I did:
- manually demux 6ch.msf into 3 pairs and convert them (2ch_1.wav + 2ch_2.wav + 2ch_3.wav)
- convert the 6ch.msf file to wav (with my changes)
- manually demux the 6ch.wav into 3 pairs (6ch_d1.wav + 6ch_d2.wav + 6ch_d3.wav)
- compare each pair (ex. 2ch_3.wav vs 6ch_d3.wav): all pairs are byte-exact.

The new code just processes each JS pair separatedly, there are no algorithm changes.
It could be improved a bit but I'm not sure about typical styles.
I've only seen 6ch .MSF (probably the AT3 spec only supports 2ch audio).

Signed-off-by: bnnm <bananaman255@gmail.com>
 2017-02-01 19:14:12 +01:00
bnnm
cab0f3abc5 avcodec/atrac3: allow 6 channels (non-joint stereo) 
Raises max channels to 6 (for non joint-stereo only),
there is no difference decoding 1 or N discrete channels.
Fixes trac issue #5840

Signed-off-by: bnnm <bananaman255@gmail.com>
 2017-01-20 12:53:57 +01:00
Paul B Mahol
c9fb81ff41 avcodec/atrac3: pass AVCodecContext to av_log if available 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-04-14 18:47:57 +02:00
Michael Niedermayer
29d147c94d Merge commit '059a934806d61f7af9ab3fd9f74994b838ea5eba' 
* commit '059a934806d61f7af9ab3fd9f74994b838ea5eba':
  lavc: Consistently prefix input buffer defines

Conflicts:
	doc/examples/decoding_encoding.c
	libavcodec/4xm.c
	libavcodec/aac_adtstoasc_bsf.c
	libavcodec/aacdec.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.h
	libavcodec/asvenc.c
	libavcodec/avcodec.h
	libavcodec/avpacket.c
	libavcodec/dvdec.c
	libavcodec/ffv1enc.c
	libavcodec/g2meet.c
	libavcodec/gif.c
	libavcodec/h264.c
	libavcodec/h264_mp4toannexb_bsf.c
	libavcodec/huffyuvdec.c
	libavcodec/huffyuvenc.c
	libavcodec/jpeglsenc.c
	libavcodec/libxvid.c
	libavcodec/mdec.c
	libavcodec/motionpixels.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/noise_bsf.c
	libavcodec/nuv.c
	libavcodec/nvenc.c
	libavcodec/options.c
	libavcodec/parser.c
	libavcodec/pngenc.c
	libavcodec/proresenc_kostya.c
	libavcodec/qsvdec.c
	libavcodec/svq1enc.c
	libavcodec/tiffenc.c
	libavcodec/truemotion2.c
	libavcodec/utils.c
	libavcodec/utvideoenc.c
	libavcodec/vc1dec.c
	libavcodec/wmalosslessdec.c
	libavformat/adxdec.c
	libavformat/aiffdec.c
	libavformat/apc.c
	libavformat/apetag.c
	libavformat/avidec.c
	libavformat/bink.c
	libavformat/cafdec.c
	libavformat/flvdec.c
	libavformat/id3v2.c
	libavformat/isom.c
	libavformat/matroskadec.c
	libavformat/mov.c
	libavformat/mpc.c
	libavformat/mpc8.c
	libavformat/mpegts.c
	libavformat/mvi.c
	libavformat/mxfdec.c
	libavformat/mxg.c
	libavformat/nutdec.c
	libavformat/oggdec.c
	libavformat/oggparsecelt.c
	libavformat/oggparseflac.c
	libavformat/oggparseopus.c
	libavformat/oggparsespeex.c
	libavformat/omadec.c
	libavformat/rawdec.c
	libavformat/riffdec.c
	libavformat/rl2.c
	libavformat/rmdec.c
	libavformat/rtpdec_latm.c
	libavformat/rtpdec_mpeg4.c
	libavformat/rtpdec_qdm2.c
	libavformat/rtpdec_svq3.c
	libavformat/sierravmd.c
	libavformat/smacker.c
	libavformat/smush.c
	libavformat/spdifenc.c
	libavformat/takdec.c
	libavformat/tta.c
	libavformat/utils.c
	libavformat/vqf.c
	libavformat/westwood_vqa.c
	libavformat/xmv.c
	libavformat/xwma.c
	libavformat/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 23:15:19 +02:00
Michael Niedermayer
444e9874a7 Merge commit 'def97856de6021965db86c25a732d78689bd6bb0' 
* commit 'def97856de6021965db86c25a732d78689bd6bb0':
  lavc: AV-prefix all codec capabilities

Conflicts:
	cmdutils.c
	ffmpeg.c
	ffplay.c
	libavcodec/8svx.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/adpcm.c
	libavcodec/alac.c
	libavcodec/atrac3plusdec.c
	libavcodec/bink.c
	libavcodec/dnxhddec.c
	libavcodec/dvdec.c
	libavcodec/dvenc.c
	libavcodec/ffv1dec.c
	libavcodec/ffv1enc.c
	libavcodec/fic.c
	libavcodec/flacdec.c
	libavcodec/flacenc.c
	libavcodec/flvdec.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/gifdec.c
	libavcodec/h261dec.c
	libavcodec/hevc.c
	libavcodec/iff.c
	libavcodec/imc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libvo-aacenc.c
	libavcodec/libvorbisenc.c
	libavcodec/libvpxdec.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec_float.c
	libavcodec/msmpeg4dec.c
	libavcodec/mxpegdec.c
	libavcodec/nvenc_h264.c
	libavcodec/nvenc_hevc.c
	libavcodec/pngdec.c
	libavcodec/qpeg.c
	libavcodec/ra288.c
	libavcodec/rv10.c
	libavcodec/s302m.c
	libavcodec/sp5xdec.c
	libavcodec/takdec.c
	libavcodec/tiff.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/vp6.c
	libavcodec/vp9.c
	libavcodec/wavpack.c
	libavcodec/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 22:50:18 +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
059a934806 lavc: Consistently prefix input buffer defines 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:59 +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
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
Michael Niedermayer
e82b0e6126 Merge commit 'ee964145b5d229571e00bf6883a44189d02babe2' 
* commit 'ee964145b5d229571e00bf6883a44189d02babe2':
  lavc: remove unused traces of fmtconvert usage

Conflicts:
	libavcodec/aac.h
	libavcodec/aacdec.c
	libavcodec/atrac3.c
	libavcodec/vorbisdec.c
	libavcodec/wma.c
	libavcodec/wma.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-02-28 23:41:36 +01:00
Anton Khirnov
ee964145b5 lavc: remove unused traces of fmtconvert usage 
Those decoders have been switched to float output and so do not use
fmtconvert anymore.
 2015-02-28 21:51:24 +01:00
Michael Niedermayer
93f959b672 avcodec/atrac3: Use avpriv_float_dsp_alloc() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-30 11:23:34 +01:00
Michael Niedermayer
ea77d3b889 avcodec/atrac3: use av_freep(), do not leave stale pointers in memory 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-10-10 17:10:02 +02:00
Michael Niedermayer
fb33bff990 Merge commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39' 
* commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39':
  cosmetics: Write NULL pointer equality checks more compactly

Conflicts:
	cmdutils.c
	ffmpeg_opt.c
	ffplay.c
	libavcodec/dvbsub.c
	libavcodec/dvdsubdec.c
	libavcodec/dvdsubenc.c
	libavcodec/dxa.c
	libavcodec/libxvid_rc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/rv10.c
	libavcodec/tiffenc.c
	libavcodec/utils.c
	libavcodec/vc1dec.c
	libavcodec/zmbv.c
	libavdevice/v4l2.c
	libavformat/matroskadec.c
	libavformat/movenc.c
	libavformat/sdp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-15 21:00:50 +02:00
Gabriel Dume
f929ab0569 cosmetics: Write NULL pointer equality checks more compactly 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2014-08-15 03:18:18 -07:00
Michael Niedermayer
606a49d2e6 avcodec/atrac3: Use av_mallocz_array() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-05-21 15:59:56 +02:00
Maxim Poliakovski
2d52834910 atrac3: Better name for imdct window initialization 
Patch by Diego Biurrun.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-10 18:33:16 +02:00
Maxim Poliakovski
4fb8de08e1 atrac3: Remove unused gain compensation tables 
Patch by Diego Biurrun.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-10 18:33:07 +02:00
Maxim Poliakovski
ed796fba76 atrac3: Better name for IMDCT window initialization 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-10-10 14:29:54 +02:00
Maxim Poliakovski
be76415047 atrac3: Remove unused gain compensation tables 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-10-10 14:26:13 +02:00
Maxim Poliakovski
79cbac8cd4 atrac3: Generalize gain compensation code 
Move it to the ATRAC common code, to reuse in the upcoming ATRAC3+ decoder.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-10-03 18:20:01 +02:00
Diego Biurrun
5ce04c14dd Use correct Doxygen syntax 2013-10-03 17:53:51 +02:00
Diego Biurrun
be0b4c70ec atrac3: Replace a silly counter variable name with plain 'j' 2013-10-03 17:53:51 +02:00
Michael Niedermayer
4a63c69faa Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  atrac3: Generalize gain compensation code

Conflicts:
	libavcodec/atrac.c
	libavcodec/atrac.h
	libavcodec/atrac3.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-03 21:46:42 +02:00
Michael Niedermayer
c2df95978b Merge commit 'be0b4c70ec40d7f9ac8e416a4379d4a387421184' 
* commit 'be0b4c70ec40d7f9ac8e416a4379d4a387421184':
  atrac3: Replace a silly counter variable name with plain 'j'

Conflicts:
	libavcodec/atrac3.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-03 21:14:54 +02:00
Maxim Poliakovski
d49f3fa579 atrac3: Generalize gain compensation code 
Move it to the ATRAC common code, so it can be reused
in the umpcoming ATRAC3+ decoder.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-02 10:44:02 +02:00
Maxim Poliakovski
4fa2484067 atrac3/decode_gain_control: cosmetics 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-02 10:42:12 +02:00
Maxim Poliakovski
4978be2bc6 atrac3: rename num_gain_data to num_points 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-02 10:37:38 +02:00
Maxim Poliakovski
dc80e250fc atrac3: Rename GainInfo to AtracGainInfo 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-02 10:37:05 +02:00
Michael Niedermayer
4cfe3b7405 Merge commit '7df9e693a34c84c698da60426c78140c950f95ed' 
* commit '7df9e693a34c84c698da60426c78140c950f95ed':
  cosmetics: Fix ATRAC codec name spelling

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-09-03 15:05:18 +02:00
Diego Biurrun
7df9e693a3 cosmetics: Fix ATRAC codec name spelling 2013-09-02 21:38:57 +02:00
Michael Niedermayer
a3d9a21683 Merge commit 'bbf6a4aa20bfe3d7869b2218e66063602dfb8aa7' 
* commit 'bbf6a4aa20bfe3d7869b2218e66063602dfb8aa7':
  imc: Catch a division by zero
  atrac3: Error on impossible encoding/channel combinations

See: 13451f5520

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-10 12:28:07 +02:00
Luca Barbato
5eaed6d336 atrac3: fix error handling 
decode_tonal_components returns a proper AVERROR.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-10 02:15:43 +02:00
Luca Barbato
50cf5a7fb7 atrac3: Error on impossible encoding/channel combinations 
Joint stereo encoded mono is impossible.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-09 10:49:29 +02:00
Luca Barbato
22e76ec635 atrac3: set the getbits context the right buffer_end 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-09 10:49:29 +02:00