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* avcodec: Make init-threadsafety the defaultAndreas Rheinhardt2022-07-18
| | | | | | | | | | | and remove FF_CODEC_CAP_INIT_THREADSAFE All our native codecs are already init-threadsafe (only wrappers for external libraries and hwaccels are typically not marked as init-threadsafe yet), so it is only natural for this to also be the default state. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/codec_internal: Use union for FFCodec decode/encode callbacksAndreas Rheinhardt2022-04-05
| | | | | | | | | | | This is possible, because every given FFCodec has to implement exactly one of these. Doing so decreases sizeof(FFCodec) and therefore decreases the size of the binary. Notice that in case of position-independent code the decrease is in .data.rel.ro, so that this translates to decreased memory consumption. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/codec_internal: Add FFCodec, hide internal part of AVCodecAndreas Rheinhardt2022-03-21
| | | | | | | | | | | | | | | | Up until now, codec.h contains both public and private parts of AVCodec. This exposes the internals of AVCodec to users and leads them into the temptation of actually using them and forces us to forward-declare structures and types that users can't use at all. This commit changes this by adding a new structure FFCodec to codec_internal.h that extends AVCodec, i.e. contains the public AVCodec as first member; the private fields of AVCodec are moved to this structure, leaving codec.h clean. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/internal: Move FF_CODEC_CAP_* to a new header codec_internal.hAndreas Rheinhardt2022-03-21
| | | | | | | | | | Also move FF_CODEC_TAGS_END as well as struct AVCodecDefault. This reduces the amount of files that have to include internal.h (which comes with quite a lot of indirect inclusions), as e.g. most encoders don't need it. It is furthemore in preparation for moving the private part of AVCodec out of the public codec.h. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* ac3: convert to new channel layout APIVittorio Giovara2022-03-15
| | | | | | Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec: Remove the FFT_FIXED_32 defineAndreas Rheinhardt2021-08-05
| | | | | | | | Since the removal of the 16-bit FFT said define is unnecessary as FFT_FIXED_32 is always !FFT_FLOAT. But one wouldn't believe it when looking at the code. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec: Constify AVCodecsAndreas Rheinhardt2021-04-27
| | | | | | | | | | 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>
* avcodec/ac3dec: Make decoders init-threadsafeAndreas Rheinhardt2021-01-09
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/ac3dec: Check operations that can failAndreas Rheinhardt2021-01-09
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec: Set AV_CODEC_CAP_CHANNEL_CONF in more decodersMichael Niedermayer2020-11-28
| | | | | | Suggested-by: Paul B Mahol <onemda@gmail.com> See: [FFmpeg-devel] [PATCH 1/3] avcodec/fastaudio: Check channels Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/ac3dec_fixed: Remove some temporary variables from scale_coefs()Michael Niedermayer2020-06-08
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/ac3dec_fixed: Fix several invalid left shifts in scale_coefs()Michael Niedermayer2020-04-16
| | | | | | | | Fixes: left shift of negative value -14336 Fixes: 20298/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AC3_FIXED_fuzzer-5675484201615360 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/ac3dec_fixed: Fix integer overflow in scale_coefs()Michael Niedermayer2018-01-15
| | | | | | | | Fixes: runtime error: signed integer overflow: 2147483520 + 128 cannot be represented in type 'int' Fixes: 4800/clusterfuzz-testcase-minimized-6110372403609600 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/ac3dec_fixed: Fix multiple runtime error: signed integer overflow: ↵Michael Niedermayer2017-06-08
| | | | | | | | | -39271008 * 59 cannot be represented in type 'int' Fixes: 2113/clusterfuzz-testcase-minimized-6510704959946752 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/ac3dec_fixed: Fix runtime error: left shift of 419 by 23 places ↵Michael Niedermayer2017-06-04
| | | | | | | | | cannot be represented in type 'int' Fixes: 1352/clusterfuzz-testcase-minimized-5757565017260032 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* Merge commit '43717469f9daa402f6acb48997255827a56034e9'Clément Bœsch2017-03-22
| | | | | | | * commit '43717469f9daa402f6acb48997255827a56034e9': ac3dsp: Reverse matrix in/out order in downmix() Merged-by: Clément Bœsch <u@pkh.me>
* avcodec/ac3dec: add consistent noise generation option.Jonathan Campbell2017-01-22
| | | | | | | 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>
* avcodec: use AV_OPT_TYPE_BOOL in a bunch of placesClément Bœsch2015-12-04
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* Merge commit 'def97856de6021965db86c25a732d78689bd6bb0'Michael Niedermayer2015-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
* ac3dec_fixed: always use the USE_FIXED=1 variant of the AC3DecodeContextAndreas Cadhalpun2015-03-14
| | | | | | | | | | | | | | | | | | | The AC3DecodeContext has a float (USE_FIXED=0) and an integer (USE_FIXED=1) variant, both of which can be present in the same binary. This is not only very confusing, but it also breaks horribly, when one variant is used by code expecting the other. This currently happens, because eac3dec.c is only compiled for the float variant, but also used from ac3dec_fixed.c, which uses the integer variant. The result is memory corruption, leading to crashes. So compile eac3dec.c once for each variant and adapt it, so that it works with the integer variant. A loss of precission and scaling bug has been fixed by the committer Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/ac3dec_fixed: remove unused arraysMichael Niedermayer2014-09-08
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* ac3dec_fixed: add missing "static const".Reimar Döffinger2014-08-31
| | | | Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
* Improved AC3 decoder level support (heavy drc, dialnorm)Jean-Francois Thibert2014-08-27
| | | | | | | | | 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>
* avcodec/ac3dec_fixed: add missingAVprefix to CODEC_IDMichael Niedermayer2014-04-01
| | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Nedeljko Babic <nbabic@mips.com>
* avcodec/ac3: rename identifier used to select the fixed point variantMichael Niedermayer2014-04-01
| | | | | | | | 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>
* libavcodec: Implementation of AC3 fixedpoint decoderNedeljko Babic2014-04-01
Signed-off-by: Nedeljko Babic <nbabic@mips.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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