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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: Make FFCodec.decode use AVFrame*Andreas Rheinhardt2022-04-05
| | | | | | | | This increases type-safety by avoiding conversions from/through void*. It also avoids the boilerplate "AVFrame *frame = data;" line for non-subtitle decoders. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/mathops: Move bitswap_32() to its only userAndreas Rheinhardt2022-03-21
| | | | | | | | Effectively reverts eaff1aa09e90e2711207c9463db8bf8e8dec8178 given that bitswap_32 is no longer used outside of bitstream.c since 03008c2811ec26cf338780a89b6b2b849b399e3c. 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>
* dst: convert to new channel layout APIAnton Khirnov2022-03-15
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* Remove unnecessary avassert.h inclusionsAndreas Rheinhardt2021-07-22
| | | | 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>
* lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bumpAnton Khirnov2021-01-01
| | | | They are not properly namespaced and not intended for public use.
* avcodec/dsd: Make initializing DSD tables thread-safeAndreas Rheinhardt2020-12-08
| | | | | | | This automatically makes the DSD formats as well as DST and WavPack init-threadsafe. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/dstdec: Replace AC overread check by sample rate checkMichael Niedermayer2020-07-02
| | | | | | | | | | | | | Real files do skip coding 0 bits at the end, thus this kind of check does not work reliable. Fixes: Ticket 8770 Fixes: dst-256fs44-6ch-refdstencoder.dff The samplerate is specified in ISO/IEC 14496-3:2005(E) as one of 3 fixed values, this also can be used to limit the duration and avoid the timeout This reverts commit f6df99dba1ae64b05d08fba8160d13eb9795042f.
* avcodec/dstdec: Check sample rateMichael Niedermayer2020-05-10
| | | | | | | | | Fixes: out of array access Fixes: 20659/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5735812071424000 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>
* avcodec/dstdec: Fix integer overflow in read_table()Michael Niedermayer2020-05-02
| | | | | | | | Fixes: signed integer overflow: -16 * 134217879 cannot be represented in type 'int' Fixes: 20492/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5639509530378240 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/dstdec: Use local channels variableMichael Niedermayer2020-02-14
| | | | | Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/dstdec: Use get_ur_golomb_jpegls()Michael Niedermayer2019-12-15
| | | | | | | | | Fixes: shift exponent -4 is negative Fixes: 17793/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5766088435957760 Fixes: 18989/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5175008116867072 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/dstdec: Check that AC probabilities are within rangeMichael Niedermayer2019-11-09
| | | | | | | | | | | ISO/IEC 14496-3:2005(E): "Each entry of P_one[ ][ ] is in the range of 1 to 128, corresponding to a probability of 1/256 to 128/256 of the next error bit (bit E, See Figure 10.5)..." Fixes: Timeout (42sec ->1sec) Fixes: 18181/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5736646250594304 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/dstdec: Check read_table() for failureMichael Niedermayer2019-11-09
| | | | | | | | Fixes: Timeout (too long -> 42sec) Fixes: 18181/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5736646250594304 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/dstdec: Check for input exhaustionMichael Niedermayer2019-10-10
| | | | | | | | | Fixes: Timeout (239sec -> 16sec) Fixes: 17811/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5715508149616640 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>
* avcodec/dstdec: Fix integer overflow in samples_per_frame computationMichael Niedermayer2019-09-26
| | | | | | | | | Fixes: Timeout (? -> 2ms) Fixes: 17616/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5198057947267072 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>
* avcodec/dstdec: use appropriate alignmentPeter Ross2019-01-12
| | | | | | | this was a typo in my original dst decoder. there is no requirement for 64-byte alignment here. the change does not affect decoder performance. Signed-off-by: Peter Ross <pross@xvid.org>
* dstdec: big-endian compatiblityPeter Ross2019-01-11
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* avcodec/dstdec: Fix "warning: initialization from incompatible pointer type ↵Michael Niedermayer2016-05-15
| | | | | | [enabled by default]" Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec: add Direct Stream Transfer (DST) decoderPeter Ross2016-05-15
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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