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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/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>
* 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/fmvc: avoid copying uninitialized dataMichael Niedermayer2021-02-14
| | | | | | | | Fixes: Timeout Fixes: 30049/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FMVC_fuzzer-5986909455253504 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/fmvc: Check if header fields are available before allocating the imageMichael Niedermayer2019-06-21
| | | | | | | | | Fixes: Timeout (15sec -> 0.5sec) Fixes: 14846/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FMVC_fuzzer-5068322120400896 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/fmvc: use correct pixel format on big-endian for 16 bppPaul B Mahol2018-09-08
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* Merge commit '95a8a03a191204c3ca5c8cf6b69ab166765d5ff3'James Almer2017-10-27
|\ | | | | | | | | | | | | * commit '95a8a03a191204c3ca5c8cf6b69ab166765d5ff3': Add FM Screen Capture Codec decoder Merged-by: James Almer <jamrial@gmail.com>
| * Add FM Screen Capture Codec decoderPaul B Mahol2017-04-13
| | | | | Signed-off-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Diego Biurrun <diego@biurrun.de>
* avcodec/fmvc: Fix use of uninitialized memory when the first frame is not a ↵Max Justicz2017-05-23
| | | | | | | | keyframe Fixes: fmvc-poc.avi Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/fmvc: Fix off by 1 errorMichael Niedermayer2017-05-17
| | | | | | | | Fixes: out of array access Fixes: 1643/clusterfuzz-testcase-minimized-6117573403869184 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/fmvc: Check nb_blocksMichael Niedermayer2017-05-13
| | | | | | | | Fixes: out of array read Fixes: 1508/clusterfuzz-testcase-minimized-5011336327069696 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/fmvc: small refactoring in decode_type1()Diego Biurrun2017-03-21
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* avcodec/fmvc: initialize opcode to 0Paul B Mahol2017-02-24
| | | | | | It shouldn't really matter but it doesn't hurt. Signed-off-by: Paul B Mahol <onemda@gmail.com>
* avcodec/fmvc: fix decoding of odd size videosPaul B Mahol2017-02-17
| | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* avcodec: add FM Screen Capture Codec decoderPaul B Mahol2017-02-12
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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