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2017-11-22avcodec/jpeg2000: Dynamically allocate codeblock dataMichael Niedermayer
Fixes: OOM Fixes: 3541/clusterfuzz-testcase-minimized-6469958596820992 Adds support for decoding codeblock data larger than 8kb Reduces decoder memory consumption Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-10-01avcodec/jpeg2000: Check that codsty->log2_prec_widths/heights has been ↵Michael Niedermayer
initialized Fixes: OOM Fixes: 2225/clusterfuzz-testcase-minimized-5505632079708160 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-06-21Merge commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb'Clément Bœsch
* commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb': cosmetics: Fix spelling mistakes Merged-by: Clément Bœsch <u@pkh.me>
2016-05-04cosmetics: Fix spelling mistakesVittorio Giovara
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2015-12-16lavc: move exp2fi to ff_exp2fi in internal.hGanesh Ajjanagadde
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-12-09avcodec/jpeg2000: replace naive pow call with smarter exp2fiGanesh Ajjanagadde
pow is a very wasteful function for this purpose. A low hanging fruit would be simply to replace with exp2f, and that does yield some speedup. However, there are 2 drawbacks of this: 1. It does not exploit the integer nature of the argument. 2. (minor) Some platforms lack a proper exp2f routine, making benefits available only to non broken libm. 3. exp2f does not solve the same issue that plagues pow, namely terrible worst case performance. This is a fundamental issue known as the "table-maker's dilemma" recognized by Prof. Kahan himself and subsequently elaborated and researched by many others. All this is clear from benchmarks below. This exploits the IEEE-754 format to get very good performance even in the worst case for integer powers of 2. This solves all the issues noted above. Function tested with clang usan over [-1000, 1000] (beyond range of relevance for this, which is [-255, 255]), patch itself with FATE. Benchmarks obtained on x86-64, Haswell, GNU-Linux via 10^5 iterations of the pow call, START/STOP, and command ffplay ~/samples/jpeg2000/chiens_dcinema2K.mxf. Low number of runs also given to prove the point about worst case: pow: 216270 decicycles in pow, 1 runs, 0 skips 110175 decicycles in pow, 2 runs, 0 skips 56085 decicycles in pow, 4 runs, 0 skips 29013 decicycles in pow, 8 runs, 0 skips 15472 decicycles in pow, 16 runs, 0 skips 8689 decicycles in pow, 32 runs, 0 skips 5295 decicycles in pow, 64 runs, 0 skips 3599 decicycles in pow, 128 runs, 0 skips 2748 decicycles in pow, 256 runs, 0 skips 2304 decicycles in pow, 511 runs, 1 skips 2072 decicycles in pow, 1022 runs, 2 skips 1963 decicycles in pow, 2044 runs, 4 skips 1894 decicycles in pow, 4091 runs, 5 skips 1860 decicycles in pow, 8184 runs, 8 skips exp2f: 134140 decicycles in pow, 1 runs, 0 skips 68110 decicycles in pow, 2 runs, 0 skips 34530 decicycles in pow, 4 runs, 0 skips 17677 decicycles in pow, 8 runs, 0 skips 9175 decicycles in pow, 16 runs, 0 skips 4931 decicycles in pow, 32 runs, 0 skips 2808 decicycles in pow, 64 runs, 0 skips 1747 decicycles in pow, 128 runs, 0 skips 1208 decicycles in pow, 256 runs, 0 skips 952 decicycles in pow, 512 runs, 0 skips 822 decicycles in pow, 1024 runs, 0 skips 765 decicycles in pow, 2047 runs, 1 skips 722 decicycles in pow, 4094 runs, 2 skips 693 decicycles in pow, 8190 runs, 2 skips exp2fi: 2740 decicycles in pow, 1 runs, 0 skips 1530 decicycles in pow, 2 runs, 0 skips 955 decicycles in pow, 4 runs, 0 skips 622 decicycles in pow, 8 runs, 0 skips 477 decicycles in pow, 16 runs, 0 skips 368 decicycles in pow, 32 runs, 0 skips 317 decicycles in pow, 64 runs, 0 skips 291 decicycles in pow, 128 runs, 0 skips 277 decicycles in pow, 256 runs, 0 skips 268 decicycles in pow, 512 runs, 0 skips 265 decicycles in pow, 1024 runs, 0 skips 263 decicycles in pow, 2048 runs, 0 skips 263 decicycles in pow, 4095 runs, 1 skips 260 decicycles in pow, 8191 runs, 1 skips Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-12-03avcodec/jpeg2000: fix type of arguments of tag_tree_sizeMichael Niedermayer
Fixes: out of array read Fixes: 36b8096fefab16c4c9326a508053e95c/signal_sigsegv_1d9ce18_3233_1a55196b018106dfabeace071a432d9e.r3d Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-11-16avcodec/jpeg2000: Change coord to 32bit to support larger than 32k width or ↵Michael Niedermayer
height Fixes: 03e0abe721b1174856d41a1eb5d6a896/signal_sigabrt_7ffff6ae7cc9_3813_e71bf3541abed3ccba031cd5ba0269a4.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-11-15avcodec/jpeg2000: Check comp coords to be within the supported sizeMichael Niedermayer
Fixes assertion failure Fixes: 03e0abe721b1174856d41a1eb5d6a896/signal_sigabrt_7ffff6ae7cc9_3813_e71bf3541abed3ccba031cd5ba0269a4.avi This fix is choosen to be simple to backport, better solution for master is planed Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-11-15avcodec/jpeg2000: Use av_image_check_size() in ff_jpeg2000_init_component()Michael Niedermayer
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-09-16Merge commit '570fcaf3326aef9313b10863e2f6e6ae664d9dae'Hendrik Leppkes
* commit '570fcaf3326aef9313b10863e2f6e6ae664d9dae': jpeg2000: Factor out prec init Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-09-16Merge commit '95a41311ac3a44773cc4dc407408aca35b1f8e26'Hendrik Leppkes
* commit '95a41311ac3a44773cc4dc407408aca35b1f8e26': jpeg2000: Factor out band stepsize initialization Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-09-16Merge commit '7fb93eae43cc89bd7c1c275344e1cdbadab7155b'Hendrik Leppkes
* commit '7fb93eae43cc89bd7c1c275344e1cdbadab7155b': jpeg2000: Factor out band initialization Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-09-14jpeg2000: Factor out prec initLuca Barbato
Makes debugging a little simpler.
2015-09-14jpeg2000: Factor out band stepsize initializationLuca Barbato
2015-09-14jpeg2000: Factor out band initializationLuca Barbato
2015-08-21avcodec/jpeg2000: comment out unused variableGanesh Ajjanagadde
Fixes -Wunused-const-variable from http://fate.ffmpeg.org/report.cgi?time=20150820031140&slot=arm64-darwin-clang-apple-5.1 Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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>
2015-06-28avcodec/jpeg2000dec: Merge i_stepsize/2 decoder special case into dequantMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-28avcodec/jpeg2000: Support 32 decomposition levelsMichael Niedermayer
Fixes Ticket4680 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-26avcodec/jpeg2000dec: Support progression order changesMichael Niedermayer
Fixes Ticket4657 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-26avcodec/jpeg2000: Remove CBLK limitMichael Niedermayer
This also reduces the amount of memory needed Fixes Ticket4672 The new code seems slightly faster as well, probably due to better cache usage Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-25avcodec/jpeg2000: Improve right bottom precinct positionsMichael Niedermayer
Fixes Ticket4656 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-22avcodec/jpeg2000: Move L band scaling from the 9/7f wavelet to quantization ↵Michael Niedermayer
stage This reduces the number of operations Its not done for 9/7i as that would overflow thanks to JPEG2000 allowing 32 decomposition levels Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-22avcodec/jpeg2000: Move H band scaling from wavelet into quantization codeMichael Niedermayer
This reduces the number of operations done and is equivalent except for rounding Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-22avcodec/jpeg2000: Move gainb handling into the quantization codeMichael Niedermayer
thats how the specification defines it, this also improves numerical accuracy of the integer wavelet implementation. It otherwise should be equivalent, in case of overflows this can be reverted. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-14avcodec/jpeg2000: Fix regression with multiple tilesMichael Niedermayer
Fixes Ticket 4624 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-14avcodec/jpeg2000: Change codeblock coords to same origin as bandsMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-14avcodec/jpeg2000: Change precinct coords to same origin as bandsMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-14avcodec/jpeg2000: Fix band coordsMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-13avcodec/jpeg200dsp: add ff_rct_int_{sse2,avx2}James Almer
Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-06-13avcodec/jpeg200dsp: add ff_ict_float_{sse,avx}James Almer
Original intrinsics version by Nicolas Bertrand. Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-06-12avcodec/jpeg2000dec: Fix Selective arithmetic coding bypass and Multiple ↵Michael Niedermayer
codeword segments These 2 are highly related so they are in the same commit Fixes part of Ticket4605 Fixes p0_04.j2k Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-09avcodec/jpeg2000: remove unused variableMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-09avcodec/jpeg2000: Disable special case for JPEG2000_QSTY_SIMichael Niedermayer
The code gave apparently completely wrong values Fixes Ticket2872 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-09avcodec/jpeg2000dec: Fix subsampled decodingMichael Niedermayer
Fixes part of Ticket3619 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-13Merge commit 'a2448cfe167a4cd4eb631318550d4eef38fca24a'Michael Niedermayer
* commit 'a2448cfe167a4cd4eb631318550d4eef38fca24a': jpeg2000: do not compute the same value twice Conflicts: libavcodec/jpeg2000.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-13jpeg2000: do not compute the same value twiceVittorio Giovara
CC: libav-stable@libav.org Bug-Id: CID 1026771 / CID 1026772 / CID 1026773
2014-06-24Merge commit '10306e9c5fcc28bd9310a9b38f21540e9e1433e9'Michael Niedermayer
* commit '10306e9c5fcc28bd9310a9b38f21540e9e1433e9': jpeg2000: fix dereferencing invalid pointers during cleanup Conflicts: libavcodec/jpeg2000.c See: 09927f3eaa93e31dd90ab8ee66dc1ad867b3365f See: 912ce9dd2080c5837285a471d750fa311e09b555 See: 9e477a37703318cb86d8ed1d426929235aa02b67 Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-24jpeg2000: fix dereferencing invalid pointers during cleanupVittorio Giovara
CC: libav-stable@libav.org Found-by: Laurent Butti <laurentb@gmail.com> Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2014-06-17Merge commit 'fe4d5fe9361162f9033ff1bd84bfc1b2091ba785'Michael Niedermayer
* commit 'fe4d5fe9361162f9033ff1bd84bfc1b2091ba785': jpeg2000: Mark static data init functions as av_cold Conflicts: libavcodec/jpeg2000.c libavcodec/jpeg2000dec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-17jpeg2000: Mark static data init functions as av_coldDiego Biurrun
2014-06-03fix various typosLou Logan
Signed-off-by: Lou Logan <lou@lrcd.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-10-13avcodec/jpeg2000: zero i/f_dataMichael Niedermayer
Fixes uninitialized use of variables Fixes part of Ticket2921 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-23jpeg2000: fix null pointer dereference in case of malloc failureMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-23jpeg2000: zero reslevel array on allocationMichael Niedermayer
prevent use of uninitialized values Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-23jpeg2000: fix dereferencing invalid pointersMichael Niedermayer
Found-by: Laurent Butti <laurentb@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-13jpeg2000: fix overflow in dequantizationMichael Niedermayer
Fixes decoding of file generated with: ffmpeg -f lavfi -i smptehdbars=hd720 -pix_fmt rgb48 /tmp/o.jp2 Reviewed-by: Nicolas BERTRAND <nicoinattendu@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-03Merge commit 'daeb4e3042f2ecae2d41aaa4cae0bed932539788'Michael Niedermayer
* commit 'daeb4e3042f2ecae2d41aaa4cae0bed932539788': jpeg2000: Proper cleanup on failure in decode_frame() Conflicts: libavcodec/jpeg2000.c See: 9d56ccf5 Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-03Merge commit '5bf208f659703895df7926238dcfa8a8175de36b'Michael Niedermayer
* commit '5bf208f659703895df7926238dcfa8a8175de36b': jpeg2000: Use separate fields for int and float codepaths jpeg2000: Split int/float codepaths depending on the DWT Conflicts: libavcodec/jpeg2000.c libavcodec/jpeg2000dec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
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