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path: root/libavcodec/huffyuvdec.c
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2019-07-13avcodec/huffyuvdec: Check vertical subsampling in hymtMichael Niedermayer
Fixes: out of array access Fixes: 15484/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5765377054736384 Fixes: 15559/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5710295743332352 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>
2019-07-13avcodec/huffyuv: remove gray8a (the format is listed but not supported by ↵Michael Niedermayer
the implementation) Fixes: null pointer dereference Fixes: 15464/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5681391150301184 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>
2019-01-28avcodec/huffyuvdec: Check slice_offset/sizeMichael Niedermayer
Fixes: out of array access Fixes: 12447/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5201623956062208 Fixes: 12458/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5705567736168448 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-01-06avcodec/huffyuvdec: Check that slices do not exceed frame heightMichael Niedermayer
Fixes: Out of array access Fixes: 12367/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5662313959391232 Fixes: 12370/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5670984961490944 Fixes: 12376/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5644026183680000 Fixes: 12383/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5722087214284800 Fixes: 12390/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5696653095337984 Fixes: 12408/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5729689379799040 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>
2019-01-06avcodec/huffyuvdec: Check that slice height is non negative.Michael Niedermayer
Fixes: out of array access Fixes: 12381/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5705474280783872 Fixes: 12384/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5725303345774592 Fixes: 12389/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5704033050820608 Fixes: 12391/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5707284146028544 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>
2018-12-31avcodec: add HYMT decoderPaul B Mahol
2018-02-09avcodec/huffyuvdec: Check input buffer sizeMichael Niedermayer
Fixes: Timeout Fixes: 5487/clusterfuzz-testcase-4696837035393024 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>
2017-04-05huffyuv: assign correct per-thread avctx pointer to HYuvContext::avctx.Ronald S. Bultje
Fixes the following tsan warning when running fate-vsynth_lena-ffvhuff: WARNING: ThreadSanitizer: data race (pid=6484) Write of size 8 at 0x7d64000154b8 by main thread (mutexes: write M1331): #0 update_context_from_user src/libavcodec/pthread_frame.c:331 (ffmpeg+0x000000dca887) [..] Previous read of size 8 at 0x7d64000154b8 by thread T2 (mutexes: write M1334): #0 draw_slice src/libavcodec/huffyuvdec.c:857 (ffmpeg+0x000000bcc86f)
2017-03-22lavc/huffyuvdsp: only transmit the pix_fmt instead of the whole avctxClément Bœsch
Only the pixel format is required in that init function. This will also simplify the incoming merge.
2017-01-13lossless_videodsp: rename add_hfyu_left_pred_int16 to add_left_pred_int16James Almer
Signed-off-by: James Almer <jamrial@gmail.com>
2017-01-13huffyuvdsp: move functions only used by huffyuv from lossless_videodspJames Almer
Signed-off-by: James Almer <jamrial@gmail.com>
2017-01-13huffyuvencdsp: move functions only used by huffyuv from lossless_videodspJames Almer
Signed-off-by: James Almer <jamrial@gmail.com>
2017-01-13lossless_videodsp: move shared functions from huffyuvdspJames Almer
Several codecs other than huffyuv use them. Signed-off-by: James Almer <jamrial@gmail.com>
2015-10-04avcodec: use HAVE_THREADS header guards to silence -Wunused-functionGanesh Ajjanagadde
When compiled with --disable-pthreads, e.g http://fate.ffmpeg.org/report.cgi?time=20150917015044&slot=alpha-debian-qemu-gcc-4.7, a bunch of -Wunused-functions are reported due to missing header guards around threading related functions. This patch should silence such warnings. Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-07-28Merge commit '059a934806d61f7af9ab3fd9f74994b838ea5eba'Michael Niedermayer
* 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>
2015-07-27Merge commit 'def97856de6021965db86c25a732d78689bd6bb0'Michael Niedermayer
* 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>
2015-07-27Merge commit '7c6eb0a1b7bf1aac7f033a7ec6d8cacc3b5c2615'Michael Niedermayer
* commit '7c6eb0a1b7bf1aac7f033a7ec6d8cacc3b5c2615': lavc: AV-prefix all codec flags Conflicts: doc/examples/muxing.c ffmpeg.c ffmpeg_opt.c ffplay.c libavcodec/aacdec.c libavcodec/aacenc.c libavcodec/ac3dec.c libavcodec/ac3enc_float.c libavcodec/atrac1.c libavcodec/atrac3.c libavcodec/atrac3plusdec.c libavcodec/dcadec.c libavcodec/ffv1enc.c libavcodec/h264.c libavcodec/h264_loopfilter.c libavcodec/h264_mb.c libavcodec/imc.c libavcodec/libmp3lame.c libavcodec/libtheoraenc.c libavcodec/libtwolame.c libavcodec/libvpxenc.c libavcodec/libxavs.c libavcodec/libxvid.c libavcodec/mpeg12dec.c libavcodec/mpeg12enc.c libavcodec/mpegaudiodec_template.c libavcodec/mpegvideo.c libavcodec/mpegvideo_enc.c libavcodec/mpegvideo_motion.c libavcodec/nellymoserdec.c libavcodec/nellymoserenc.c libavcodec/nvenc.c libavcodec/on2avc.c libavcodec/options_table.h libavcodec/opus_celt.c libavcodec/pngenc.c libavcodec/ra288.c libavcodec/ratecontrol.c libavcodec/twinvq.c libavcodec/vc1_block.c libavcodec/vc1_loopfilter.c libavcodec/vc1_mc.c libavcodec/vc1dec.c libavcodec/vorbisdec.c libavcodec/vp3.c libavcodec/wma.c libavcodec/wmaprodec.c libavcodec/x86/hpeldsp_init.c libavcodec/x86/me_cmp_init.c Merged-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-27lavc: Consistently prefix input buffer definesVittorio Giovara
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-07-27lavc: AV-prefix all codec capabilitiesVittorio Giovara
Express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-07-27lavc: AV-prefix all codec flagsVittorio Giovara
Convert doxygen to multiline and express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-06-28huffyuvdec: validate image sizeAndreas Cadhalpun
Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
2014-11-25avcodec/huffyuvdec: apply vertical filter in steps of 1 line for interlaced BGRAMichael Niedermayer
Fixes out of array read Fixes: signal_sigsegv_3287332_2301_cov_2994954934_huffyuv.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-24lavc/huffyuvdec: fix mem leak in case of init failureLukasz Marek
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
2014-09-06huffyuvdec: avoid large stack use.Reimar Döffinger
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2014-08-26huffyuvdec: decode the last odd sampleChristophe Gisquet
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-21huffyuvdec: fix old (v1) rgbaChristophe Gisquet
Commit deadcf5e misplaced a hunk. Fixes ticket #3877. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-15Merge commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39'Michael Niedermayer
* commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39': cosmetics: Write NULL pointer equality checks more compactly Conflicts: cmdutils.c ffmpeg_opt.c ffplay.c libavcodec/dvbsub.c libavcodec/dvdsubdec.c libavcodec/dvdsubenc.c libavcodec/dxa.c libavcodec/libxvid_rc.c libavcodec/mpegvideo.c libavcodec/mpegvideo_enc.c libavcodec/rv10.c libavcodec/tiffenc.c libavcodec/utils.c libavcodec/vc1dec.c libavcodec/zmbv.c libavdevice/v4l2.c libavformat/matroskadec.c libavformat/movenc.c libavformat/sdp.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-15cosmetics: Write NULL pointer equality checks more compactlyGabriel Dume
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2014-08-11avcodec/huffyuvdec: fix overread checksMichael Niedermayer
Fixes: ffvhuff_f.avi Found-by: Piotr Bandurski <ami_stuff@o2.pl> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-06Merge commit 'a7153444df9040bf6ae103e0bbf6104b66f974cb'Michael Niedermayer
* commit 'a7153444df9040bf6ae103e0bbf6104b66f974cb': huffyuvdec: check width size for yuv422p Conflicts: libavcodec/huffyuvdec.c See: 6abb9a901fca27da14d4fffbb01948288b5da3ba Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-06huffyuvdec: check width size for yuv422pMichael Niedermayer
Avoid out of array accesses. CC: libav-stable@libav.org Bug-Id: CVE-2013-0848 Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net>
2014-08-04Merge commit 'd0393d79bc3d61c9f2ff832c0e273b7774ff0269'Michael Niedermayer
* commit 'd0393d79bc3d61c9f2ff832c0e273b7774ff0269': huffyuv: Check and propagate function return values Conflicts: libavcodec/huffyuvdec.c See: f67a0d115254461649470452058fa3c28c0df294 Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-04Merge commit '6234058148d6e1ee765913b678a22385a87bffac'Michael Niedermayer
* commit '6234058148d6e1ee765913b678a22385a87bffac': huffyuv: Return proper error codes Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-04Merge commit 'b7616f5716dce68c749d5dfeab19cf595a11807c'Michael Niedermayer
* commit 'b7616f5716dce68c749d5dfeab19cf595a11807c': huffyuv: Eliminate some pointless casts Conflicts: libavcodec/huffyuvdec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-04Merge commit 'c065f4a0c652cc569c927c95148111b3aa2962dc'Michael Niedermayer
* commit 'c065f4a0c652cc569c927c95148111b3aa2962dc': huffyuv: K&R formatting cosmetics Conflicts: libavcodec/huffyuvdec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-04huffyuv: Check and propagate function return valuesDiego Biurrun
Bug-Id: CVE-2013-0868 inspired by a patch from Michael Niedermayer <michaelni@gmx.at> Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Diego Biurrun <diego@biurrun.de> CC: libav-stable@libav.org
2014-08-04huffyuv: Return proper error codesDiego Biurrun
2014-08-04huffyuv: Eliminate some pointless castsDiego Biurrun
2014-08-04huffyuv: K&R formatting cosmeticsDiego Biurrun
2014-08-04huffyuv: Use avpriv_report_missing_feature() where appropriateDiego Biurrun
2014-06-23Merge commit 'c67b449bebbe0b35c73b203683e77a0a649bc765'Michael Niedermayer
* commit 'c67b449bebbe0b35c73b203683e77a0a649bc765': dsputil: Split bswap*_buf() off into a separate context Conflicts: configure libavcodec/4xm.c libavcodec/ac3dec.c libavcodec/ac3dec.h libavcodec/apedec.c libavcodec/eamad.c libavcodec/flacenc.c libavcodec/fraps.c libavcodec/huffyuv.c libavcodec/huffyuvdec.c libavcodec/motionpixels.c libavcodec/truemotion2.c libavcodec/x86/Makefile libavcodec/x86/dsputil_init.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23dsputil: Split bswap*_buf() off into a separate contextDiego Biurrun
2014-06-18avcodec/huffyuvdec: do not leave alpha values uninitializedMichael Niedermayer
fixes fate failure under valgrind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-16avcodec/huffyuvdec: Fix fill value for truncated bitstreamsMichael Niedermayer
Found-by: Christophe Gisquet <christophe.gisquet@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-16huffyuvdec: use unsafe bitstream readerChristophe Gisquet
The reader reads in chunks of 11 bits at most, and at most 3 times. The unsafe reader therefore may read 6 chunks instead of 1 in worst case, ie 8 bytes, which is within the padding tolerance. The reader ends up being ~10% faster. Cumulative effect of unsafe reading and code block swapping on 3 sequences is for 1 thread, decoding time goes from 23.3s to 19.0s. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-15huffyuvdec: remove somewhat deprecated codeChristophe Gisquet
The old code was reserving the 0xFFFF entry to represent an inexisting entry/codeword. These entries are now detected through their length being <= 0. As this entry is often used for the residuals (-1,-1), which should be among the most frequent, it is particularly important to not reserve it. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-15avcodec/huffyuvdec: assume vlcs can be 32 instead of 31 bits maxMichael Niedermayer
This should avoid a division as well Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-15huffyuvdec: swap code blocksChristophe Gisquet
The effect is not really deterministic, as it seems to be a combination on x86_64 of fewer registers used, different jump offsets and, for all archs, of likely branches. Speedup is around 15%. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-06huffyuvdec: trick for plane decoding <= 14bitsChristophe Gisquet
Refactor the code to minimize code duplication. Before: 130870 decicycles in g, 1048139 runs, 437 skips 10bits: 9.048 12bits: 10.733 After: 126960 decicycles in g, 1048136 runs, 440 skips 10bits: 8.642 12bits: 9.656 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-05huffyuvdec: remove superfluous check in BGR codeChristophe Gisquet
Before: 154861 decicycles After: 152912 decicycles Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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