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* avcodec/intrax8: Remove unused IDCTDSPContextAndreas Rheinhardt2022-08-03
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* 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/vc1: Introduce fast path for unescaping bitstream bufferBen Avison2022-04-01
| | | | | | | Includes a checkasm test. Signed-off-by: Ben Avison <bavison@riscosopen.org> Signed-off-by: Martin Storsjö <martin@martin.st>
* 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>
* configure: Use a separate config_components.h header for $ALL_COMPONENTSMartin Storsjö2022-03-16
| | | | | | | | This avoids unnecessary rebuilds of most source files if only the list of enabled components has changed, but not the other properties of the build, set in config.h. Signed-off-by: Martin Storsjö <martin@martin.st>
* avcodec/msmpeg4dec: Make initializing VLCs thread-safeAndreas Rheinhardt2022-02-18
| | | | | | | | | | | This automatically makes the remaining mpegvideo-decoders (namely msmpeg4v[1-3], mss2, VC-1, VC-1 Image, WMV-[1-3] and WMV-3 Image) init-threadsafe. These were the last native codecs that were not init-threadsafe; only wrappers for external libraries and for hardware accelerations are now not init-threadsafe. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/mpegvideo: Move decoder-only stuff to a new headerAndreas Rheinhardt2022-02-13
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/msmpeg4.h: Move decoder-only parts to a new headerAndreas Rheinhardt2022-02-13
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/mpegvideo, svq3: Remove unused next_p_frame_damagedAndreas Rheinhardt2022-01-13
| | | | | | Always zero since 4d2858deac5213eaddfdc06f98379b6325d7b953. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/mpegvideo_enc, vc1dec: Remove always-false checkAndreas Rheinhardt2021-12-17
| | | | | | Mpeg1EncContext.droppable is only nonzero for the FLV decoder. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/vc1dec: return value check for init_get_bitsmaryam ebrahimzadeh2021-08-26
| | | | | | As the second argument for init_get_bits(avctx and buf) can be crafted, a return value check for this function call is necessary, so replace init_get_bits with init_get_bits8 and add return value check.
* avcodec/vc1dec: ff_print_debug_info() does not support WMV3 field_modeMichael Niedermayer2021-08-22
| | | | | | | | Fixes: out of array read Fixes: 36331/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3_fuzzer-5140494328922112.fuzz Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1dec: Disable error concealment for *IMAGEMichael Niedermayer2021-08-10
| | | | | | | | | | | | | | The existing error concealment makes no sense for the image formats, they use transformed source images which is different from keyframe + MC+difference for which the error concealment is designed. Of course feel free to re-enable this if you have a case where it works and improves vissual results Fixes: Timeout Fixes: 36234/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-6300306743885824 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* 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/vc1: Remove unused hrd fieldsAndreas Rheinhardt2021-04-12
| | | | | | Unused since be3492ec7eb2dbb0748c123af911a06c125c90db. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/vc1: Don't pretend ff_vc1_init_common() can failAndreas Rheinhardt2021-04-12
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/vc1dec: Fix memleak upon allocation errorAndreas Rheinhardt2021-04-08
| | | | | | | | | | ff_vc1_decode_init_alloc_tables() had one error path that forgot to free already allocated buffers; these would then be overwritten on the next allocation attempt (or they would just not be freed in case this happened during init, as the decoders for which it is used do not have the FF_CODEC_CAP_INIT_CLEANUP set). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/vc1dec: Postpone allocating sprite frame to avoid segfaultAndreas Rheinhardt2021-03-25
| | | | | | | | | | | | | | Up until now, the VC-1 decoders allocated an AVFrame for usage with sprites during vc1_decode_init(); yet said AVFrame can be freed if (re)initializing the context (which happens ordinarily during decoding) fails. The AVFrame does not get allocated again lateron in this case, leading to segfaults. Fix this by moving the allocation of said frame immediately before it is used (this also means that said frame won't be allocated at all any more in case of a regular (i.e. non-image) stream). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* Mark some pointers as constAndreas Rheinhardt2021-01-01
| | | | | Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* lavc: Rename hwaccel.h to hwconfig.hMark Thompson2020-04-26
| | | | | This already applied to decoders as well as hwaccels, and adding encoder support was going to make the name even more inaccurate.
* avcodec/vc1dec: Allocate only as much space as is unescapedMichael Niedermayer2020-01-18
| | | | | | | | | Fixes: OOM Fixes: 18137/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5723834900021248 Fixes: 20037/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5683758976204800 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* libavcodec/vc1: Remove bits variableMichael Niedermayer2020-01-11
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1dec: Check field_mode for spritesMichael Niedermayer2020-01-11
| | | | | | | | Fixes: Out of array read Fixes: 19263/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5389219325542400 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1dec: Limit bits by the actual bitstream sizeMichael Niedermayer2020-01-11
| | | | | | | | Fixes: Timeout (350 ->19sec) Fixes: 19249/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-6566896438870016 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1dec: Fix "return -1" casesMichael Niedermayer2019-12-28
| | | | | Reviewed-by: "mypopy@gmail.com" <mypopy@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1dec: Free sprite_output_frame on errorMichael Niedermayer2019-12-28
| | | | | | | | Fixes: memleaks Fixes: 19471/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5688035714269184 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1dec: remove the unneeded ()Limin Wang2019-12-26
| | | | | Signed-off-by: Limin Wang <lance.lmwang@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1dec: Require res_sprite for wmv3imagesMichael Niedermayer2019-08-31
| | | | | | | | | | | non res_sprite leads to decoder delay which leads to assertion failure Fixes: Assertion failure Fixes: 16402/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5704510034411520 Fixes: left shift of 1073741824 by 1 places cannot be represented in type 'int' Fixes: 16425/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5692858838810624 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1: fix check for missing CBPTABJerome Borsboom2018-06-29
| | | | | | CBPTAB must be present in (non skipped) P and B pictures. Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
* avcodec/vc1: support multi-slice field interlaced pictures with hwaccelJerome Borsboom2018-06-17
| | | | | | | | | When using hardware accelerated decoding for multi-slice field interlaced pictures, only the first slice was decoded. This patch adds the neccesary looping over the remaining slices that may exist in field interlaced pictures. Additionally, we align the calculation of mby_start for the second field with the method given in VC-1 spec. Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
* avcodec/vc1: fix calculation of the last line of a sliceJerome Borsboom2018-05-20
| | | | | | | | Only for the last slice of the first field is the last line of the slice equal to the height of the field. Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/vc1: store additional bitstream elements during MB decodingJerome Borsboom2018-04-25
| | | | | | | The new loop filter needs additional MB properties to make its filtering decisions. Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
* avcodec/vc1dec: fix preprocessor checks and hw_configs lists for the hwaccelsJames Almer2017-11-26
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* lavc: Add hardware config metadata for decoders supporting hardware outputMark Thompson2017-11-26
| | | | | | | | | This includes a pointer to the associated hwaccel for decoders using hwaccels - these will be used later to implement the hwaccel setup without needing a global list. Also added is a new file listing all hwaccels as external declarations - this will be used later to generate the hwaccel list at configure time.
* avcodec: Implement vc1 nvdec hwaccelPhilip Langdale2017-11-14
| | | | | This hwaccel is interesting because it also works for wmv3/9 content, which is not supported by the nvidia parser used by cuviddec.
* Merge commit 'dd343fd986459f467a2d1d70c26101dff1d47d68'James Almer2017-10-23
|\ | | | | | | | | | | | | * commit 'dd343fd986459f467a2d1d70c26101dff1d47d68': lavu: Drop deprecated VDPAU pixel formats Merged-by: James Almer <jamrial@gmail.com>
| * lavc: Remove deprecated XvMC support hacksDiego Biurrun2017-03-23
| | | | | | | | Deprecated in 11/2013.
* | Merge commit '7b917041184874e7d7cba4450813de7e0bb28a33'James Almer2017-10-21
|\| | | | | | | | | | | | | * commit '7b917041184874e7d7cba4450813de7e0bb28a33': lavc: Drop deprecated VDPAU codec capability Merged-by: James Almer <jamrial@gmail.com>
| * vc1: check that slices have a positive heightAnton Khirnov2016-08-18
| | | | | | | | | | | | | | Fixes possible invalid reads. CC: libav-stable@libav.org Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
* | dxva: add support for new dxva2 and d3d11 hwaccel APIswm42017-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This also adds support to avconv (which is trivial due to the new hwaccel API being generic enough). The new decoder setup code in dxva2.c is significantly based on work by Steve Lhomme <robux4@gmail.com>, but with heavy changes/rewrites. Merges Libav commit f9e7a2f95a7194a8736cc1416a03a1a0155a3e9f. Also adds untested VP9 support. The check for DXVA2 COBJs is removed. Just update your MinGW to something newer than a 5 year old release. Signed-off-by: Diego Biurrun <diego@biurrun.de>
* | vc1dec: support multiple slices in frame coded images with hwaccelHendrik Leppkes2016-11-26
| | | | | | | | Based on a patch by Jun Zhao <mypopydev@gmail.com>
* | Merge commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb'Clément Bœsch2016-06-21
|\| | | | | | | | | | | | | * commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb': cosmetics: Fix spelling mistakes Merged-by: Clément Bœsch <u@pkh.me>
| * cosmetics: Fix spelling mistakesVittorio Giovara2016-05-04
| | | | | | | | Signed-off-by: Diego Biurrun <diego@biurrun.de>
* | Merge commit 'ca8c7591735c0f80cc29e31e2e92cb10228e14c7'Derek Buitenhuis2016-05-07
|\| | | | | | | | | | | | | * commit 'ca8c7591735c0f80cc29e31e2e92cb10228e14c7': intrax8: Remove mpegvideo dependency Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
| * intrax8: Remove mpegvideo dependencyVittorio Giovara2016-03-29
| |
* | Merge commit '9fa888c02801fff2e8817c24068f5296bbe60000'Derek Buitenhuis2016-05-07
|\| | | | | | | | | | | | | * commit '9fa888c02801fff2e8817c24068f5296bbe60000': intrax8: Keep a reference to the decoder blocks Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
| * intrax8: Keep a reference to the decoder blocksVittorio Giovara2016-03-29
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