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* 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/g2meet: Cleanup generically on init failureAndreas Rheinhardt2022-02-11
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/jpegtables: Unavpriv MJPEG-tablesAndreas Rheinhardt2022-01-04
| | | | | | | | | | | | | | | | There are seven MJPEG-tables, five small (1x12, 4x17) and two not small (2x162). These are all avpriv, despite this not being worthwhile due to the overhead of exporting a symbol: The total overhead for each symbol consists of two entries in .dynsym (24B each), one entry in the importing library's .rela.dyn (24B) and one in .got (8B) as well as 2x2B for symbol versions and 4B for symbol hashes in the exporting library; in addition to that, the name of the symbol is included in both exporting and importing libraries, using 2x210 bytes in this case. (The above numbers are for a x64 Elf/Linux/GNU system. Other platforms will give different numbers.) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* Replace all occurences of av_mallocz_array() by av_calloc()Andreas Rheinhardt2021-09-20
| | | | | | | They do the same. Reviewed-by: Paul B Mahol <onemda@gmail.com> 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/g2meet: Fix undefined NULL + 0Andreas Rheinhardt2021-04-01
| | | | | | Affected the g2m4 FATE-test. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/g2meet, mjpegdec: Factor out common VLC initialization codeAndreas Rheinhardt2021-02-23
| | | | | | | | | While just at it, remove the nb_codes parameter: It is redundant (the number of codes is implicitly contained in the array containing how many entries of a specific size there are) and for this reason it might even be wrong, so it is better to check what is actually used instead. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@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/g2meet: Use least max_depth in get_vlc2()Andreas Rheinhardt2020-11-24
| | | | | | | | The longest AC codes of the standard JPEG tables are 16 bits long; for the DC tables, the maximum is 11, so using max_depth of two is sufficient. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* lavc, lavf: Remove newlines from calls to avpriv_request_sample().Carl Eugen Hoyos2020-10-11
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* avcodec/g2meet: Check tile_width in epic_jb_decode_tile()Michael Niedermayer2020-05-10
| | | | | | | | | | Fixes: out of array access Fixes: 21469/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-5199357982015488 Alternatively the arrays can be made bigger or the index can be clipped. In case a real file with such huge tiles exist we ask the user to upload it. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/g2meet: Check for end of input in jpg_decode_block()Michael Niedermayer2019-10-02
| | | | | | | | Fixes: Timeout (100sec -> 0.7sec) Fixes: 8668/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-5174143888130048 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/g2meet: Check if adjusted pixel was on the stackMichael Niedermayer2019-10-02
| | | | | | | | | | | | | This basically checks if a pixel that was coded with prediction and residual could have been stored using a previous case. This avoids basically a string of 0 symbols stored in less than 50 bytes to hit a O(n²) codepath. Fixes: Timeout (too slow to wait -> immediately) Fixes: 8668/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-4895946310680576 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/g2meet: ask for sample with overflowing RGBMichael Niedermayer2018-05-17
| | | | | | Suggested-by: Tomas Härdin <tjoppen@acc.umu.se> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/g2meet: Check RGB upper limitMichael Niedermayer2018-05-17
| | | | | | | | Fixes: runtime error: left shift of 1876744317 by 16 places cannot be represented in type 'int' Fixes: 6799/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-5115274731716608 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/g2meet: Change order of operations to avoid undefined behaviorMichael Niedermayer2018-05-06
| | | | | | | | Fixes: signed integer overflow: 65280 * 196032 cannot be represented in type 'int' Fixes: 7279/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-5977332473921536 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/elsdec: Fix memleaksMichael Niedermayer2018-04-25
| | | | | | | Fixes: 6798/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-5135899701542912 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/g2meet: Check tile dimensions with av_image_check_size2()Michael Niedermayer2018-02-27
| | | | | | | | Fixes: OOM Fixes: 6216/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-4983807968018432 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* libavcodec/blockdsp : add AVX versionMartin Vignali2017-10-03
| | | | | | | Also modify the required alignment, to 32 instead of 16 for several codecs Signed-off-by: James Almer <jamrial@gmail.com>
* Merge commit '67deba8a416d818f3d95aef0aa916589090396e2'Clément Bœsch2017-03-31
|\ | | | | | | | | | | | | * commit '67deba8a416d818f3d95aef0aa916589090396e2': Use avpriv_report_missing_feature() where appropriate Merged-by: Clément Bœsch <cboesch@gopro.com>
| * Use avpriv_report_missing_feature() where appropriateDiego Biurrun2016-11-08
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* | Use correct msvc type specifiers for ptrdiff_t and size_t.Carl Eugen Hoyos2016-03-09
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* | avcodec/g2meet: Check for ff_els_decode_bit() failure in ↵Michael Niedermayer2016-01-10
| | | | | | | | | | | | | | | | | | | | epic_decode_run_length() Fixes invalid shift Fixes: g2m_left_shift_2.wmv Found-by: Piotr Bandurski <ami_stuff@o2.pl> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | Merge commit '3a4d369ea4ded91b1178ae6e2ff0ab9ea470e344'Hendrik Leppkes2015-10-10
|\| | | | | | | | | | | | | * commit '3a4d369ea4ded91b1178ae6e2ff0ab9ea470e344': g2m: Relax resolution change constraints Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
| * g2m: Relax resolution change constraintsVittorio Giovara2015-10-07
| | | | | | | | | | | | | | Do not fail when original resolution is smaller than current one, as the frame buffer is resized automatically. Signed-off-by: Vittorio Giovara <vittorio.giovara at gmail.com>
* | avcodec/g2meet: Also clear tile dimensions on header_failMichael Niedermayer2015-09-04
| | | | | | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avcodec/g2meet: Fix potential overflow in tile dimensions checkMichael Niedermayer2015-09-04
| | | | | | | | | | | | Fixes CID1322351 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | Merge commit '059a934806d61f7af9ab3fd9f74994b838ea5eba'Michael Niedermayer2015-07-27
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit '059a934806d61f7af9ab3fd9f74994b838ea5eba': lavc: Consistently prefix input buffer defines Conflicts: doc/examples/decoding_encoding.c libavcodec/4xm.c libavcodec/aac_adtstoasc_bsf.c libavcodec/aacdec.c libavcodec/aacenc.c libavcodec/ac3dec.h libavcodec/asvenc.c libavcodec/avcodec.h libavcodec/avpacket.c libavcodec/dvdec.c libavcodec/ffv1enc.c libavcodec/g2meet.c libavcodec/gif.c libavcodec/h264.c libavcodec/h264_mp4toannexb_bsf.c libavcodec/huffyuvdec.c libavcodec/huffyuvenc.c libavcodec/jpeglsenc.c libavcodec/libxvid.c libavcodec/mdec.c libavcodec/motionpixels.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo.c libavcodec/noise_bsf.c libavcodec/nuv.c libavcodec/nvenc.c libavcodec/options.c libavcodec/parser.c libavcodec/pngenc.c libavcodec/proresenc_kostya.c libavcodec/qsvdec.c libavcodec/svq1enc.c libavcodec/tiffenc.c libavcodec/truemotion2.c libavcodec/utils.c libavcodec/utvideoenc.c libavcodec/vc1dec.c libavcodec/wmalosslessdec.c libavformat/adxdec.c libavformat/aiffdec.c libavformat/apc.c libavformat/apetag.c libavformat/avidec.c libavformat/bink.c libavformat/cafdec.c libavformat/flvdec.c libavformat/id3v2.c libavformat/isom.c libavformat/matroskadec.c libavformat/mov.c libavformat/mpc.c libavformat/mpc8.c libavformat/mpegts.c libavformat/mvi.c libavformat/mxfdec.c libavformat/mxg.c libavformat/nutdec.c libavformat/oggdec.c libavformat/oggparsecelt.c libavformat/oggparseflac.c libavformat/oggparseopus.c libavformat/oggparsespeex.c libavformat/omadec.c libavformat/rawdec.c libavformat/riffdec.c libavformat/rl2.c libavformat/rmdec.c libavformat/rtpdec_latm.c libavformat/rtpdec_mpeg4.c libavformat/rtpdec_qdm2.c libavformat/rtpdec_svq3.c libavformat/sierravmd.c libavformat/smacker.c libavformat/smush.c libavformat/spdifenc.c libavformat/takdec.c libavformat/tta.c libavformat/utils.c libavformat/vqf.c libavformat/westwood_vqa.c libavformat/xmv.c libavformat/xwma.c libavformat/yop.c Merged-by: Michael Niedermayer <michael@niedermayer.cc>
| * lavc: Consistently prefix input buffer definesVittorio Giovara2015-07-27
| | | | | | | | Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* | 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>
| * lavc: AV-prefix all codec capabilitiesVittorio Giovara2015-07-27
| | | | | | | | | | | | Express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* | avcodec/g2meet: Check R/G/B values in epic_decode_pixel_pred()Michael Niedermayer2015-07-10
| | | | | | | | | | | | | | Fixes: asan_double-free_d34593_861_smp3.wmv Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avcodec/g2meet: Clear pointers after deallocationMichael Niedermayer2015-07-08
| | | | | | | | | | | | | | Fixes double free Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit '9eec23b8a7fd0f91827bbc3ed0792c39a8cc9a8a'Michael Niedermayer2015-07-01
|\| | | | | | | | | | | | | * commit '9eec23b8a7fd0f91827bbc3ed0792c39a8cc9a8a': g2meet: use av_ceil_log2 instead of a custom function Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * g2meet: use av_ceil_log2 instead of a custom functionJanne Grunau2015-07-01
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* | Merge commit '4ccccd6c40a6d0ce85e96a6e37f558236e2a6a75'Michael Niedermayer2015-07-01
|\| | | | | | | | | | | | | * commit '4ccccd6c40a6d0ce85e96a6e37f558236e2a6a75': g2meet: use an unsigned type for the djb hash Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * g2meet: use an unsigned type for the djb hashJanne Grunau2015-07-01
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* | Merge commit '08c2d8f0aa679c2f060721d1d0d4f33d2ae32368'Michael Niedermayer2015-07-01
|\| | | | | | | | | | | | | | | | | | | | | | | * commit '08c2d8f0aa679c2f060721d1d0d4f33d2ae32368': Go2Meeting decoder Conflicts: Changelog libavcodec/g2meet.c libavcodec/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * Go2Meeting decoderKostya Shishkov2015-07-01
| | | | | | | | | | | | | | | | ELS and ePIC decoder courtesy of Maxim Poliakovski, cleanup and integration by Diego Biurrun. Signed-off-by: Diego Biurrun <diego@biurrun.de> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
| * g2meet: Support G2M5 codec variantEric Zimmerman2015-04-19
| | | | | | | | Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* | avcodec/g2meet: Check init_get_bits8() return valueMichael Niedermayer2015-05-07
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avcodec/g2meet: Use init_get_bits8()Michael Niedermayer2015-05-07
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit 'bb815dfc38b8ef7a89d6b9684ce0cdc296385d6d'Michael Niedermayer2015-04-08
|\| | | | | | | | | | | | | * commit 'bb815dfc38b8ef7a89d6b9684ce0cdc296385d6d': g2meet: K&R formatting cosmetics Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * g2meet: K&R formatting cosmeticsDiego Biurrun2015-04-08
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* | Merge commit '4978850ca2cb1ec6908f5bc79cc592ca454d11e8'Michael Niedermayer2015-03-31
|\| | | | | | | | | | | | | | | | | | | * commit '4978850ca2cb1ec6908f5bc79cc592ca454d11e8': build: Split JPEG-related tables off into a separate component Conflicts: configure Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * build: Split JPEG-related tables off into a separate componentDiego Biurrun2015-03-30
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| * g2meet: check ff_set_dimensions return valueVittorio Giovara2014-11-13
| | | | | | | | | | CC: libav-stable@libav.org Bug-Id: CID 1135739
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