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2022-09-03avcodec/codec_internal: Add macro to set AVCodec.long_nameAndreas Rheinhardt
It reduces typing: Before this patch, there were 105 codecs whose long_name-definition exceeded the 80 char line length limit. Now there are only nine of them. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-08-27avcodec/internal: Move ff_get_buffer() to decode.hAndreas Rheinhardt
Only used by decoders (encoders have ff_encode_alloc_frame()). Also clean up the other headers a bit while removing now redundant internal.h inclusions. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-07-18avcodec: Make init-threadsafety the defaultAndreas Rheinhardt
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>
2022-04-05avcodec/codec_internal: Use union for FFCodec decode/encode callbacksAndreas Rheinhardt
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>
2022-04-05avcodec/codec_internal: Make FFCodec.decode use AVFrame*Andreas Rheinhardt
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>
2022-03-21avcodec/codec_internal: Add FFCodec, hide internal part of AVCodecAndreas Rheinhardt
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>
2022-03-21avcodec/internal: Move FF_CODEC_CAP_* to a new header codec_internal.hAndreas Rheinhardt
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>
2021-07-22Remove unnecessary mem.h inclusionsAndreas Rheinhardt
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-05-02avcodec/arbc: Mark decoder as init-threadsafeAndreas Rheinhardt
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-04-27avcodec: Constify AVCodecsAndreas Rheinhardt
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>
2019-06-04avcodec/arbc: Skip tiles in fill_tileX() which are completely outsideMichael Niedermayer
Fixes: signed integer overflow: 2052526848 + 147237888 cannot be represented in type 'int' Fixes: 14441/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5717632944177152 Fixes: 14453/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5739679254577152 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-04-24avcodec/arbc: Try to correct keyframe/frame typeMichael Niedermayer
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-04-24avcodec/arbc: Skip unchanged framesMichael Niedermayer
Fixes: Timeout (16sec -> 5sec) Fixes: 14128/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5767365721063424 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-03-20avcodec/arbc: Check nb_segments before allocating and copying frameMichael Niedermayer
Fixes: Timeout (30sec -> 2sec) Fixes: 13578/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5685625527730176 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-03-20lavc/arbc: Use AV_WB24() where applicable.Carl Eugen Hoyos
2019-02-25avcodec/arbc: Check nb_tiles against dimensionsMichael Niedermayer
Fixes: Timeout Fixes: 12967/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5639021454163968 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-01-29avcodec/arbc: clear decoder state when seekingJames Almer
Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
2019-01-27avcodec: add ARBC decoderPaul B Mahol
Thanks Kostya for great help in reversing binary.
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