FFmpeg

Commit Graph

Author	SHA1	Message	Date
Luca Barbato	570fcaf332	jpeg2000: Factor out prec init Makes debugging a little simpler.	9 years ago
Luca Barbato	95a41311ac	jpeg2000: Factor out band stepsize initialization	9 years ago
Luca Barbato	7fb93eae43	jpeg2000: Factor out band initialization	9 years ago
Ganesh Ajjanagadde	36f7a37895	avcodec/jpeg2000: comment out unused variable 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>	9 years ago
Michael Niedermayer	96e73fa649	avcodec/jpeg2000dec: Merge i_stepsize/2 decoder special case into dequant Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	317be53ca6	avcodec/jpeg2000: Support 32 decomposition levels Fixes Ticket4680 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	c72a831931	avcodec/jpeg2000dec: Support progression order changes Fixes Ticket4657 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	f1e173049e	avcodec/jpeg2000: Remove CBLK limit 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>	10 years ago
Michael Niedermayer	67fc898243	avcodec/jpeg2000: Improve right bottom precinct positions Fixes Ticket4656 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	4e926fb969	avcodec/jpeg2000: Move L band scaling from the 9/7f wavelet to quantization 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>	10 years ago
Michael Niedermayer	6c7b1597c7	avcodec/jpeg2000: Move H band scaling from wavelet into quantization code This reduces the number of operations done and is equivalent except for rounding Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	1c495b0bf6	avcodec/jpeg2000: Move gainb handling into the quantization code 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>	10 years ago
Michael Niedermayer	ec5164aa31	avcodec/jpeg2000: Fix regression with multiple tiles Fixes Ticket 4624 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	a206c13289	avcodec/jpeg2000: Change codeblock coords to same origin as bands Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	d9841e53e2	avcodec/jpeg2000: Change precinct coords to same origin as bands Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	59c107292c	avcodec/jpeg2000: Fix band coords Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
James Almer	9f815bc2c2	avcodec/jpeg200dsp: add ff_rct_int_{sse2,avx2} Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>	10 years ago
James Almer	7912a6830d	avcodec/jpeg200dsp: add ff_ict_float_{sse,avx} Original intrinsics version by Nicolas Bertrand. Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>	10 years ago
Michael Niedermayer	dc73c7adc0	avcodec/jpeg2000dec: Fix Selective arithmetic coding bypass and Multiple 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>	10 years ago
Michael Niedermayer	dbbb31e5bb	avcodec/jpeg2000: remove unused variable Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	44327cbc9a	avcodec/jpeg2000: Disable special case for JPEG2000_QSTY_SI The code gave apparently completely wrong values Fixes Ticket2872 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	074159ed70	avcodec/jpeg2000dec: Fix subsampled decoding Fixes part of Ticket3619 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Vittorio Giovara	a2448cfe16	jpeg2000: do not compute the same value twice CC: libav-stable@libav.org Bug-Id: CID 1026771 / CID 1026772 / CID 1026773	10 years ago
Vittorio Giovara	10306e9c5f	jpeg2000: fix dereferencing invalid pointers during cleanup CC: libav-stable@libav.org Found-by: Laurent Butti <laurentb@gmail.com> Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	11 years ago
Diego Biurrun	fe4d5fe936	jpeg2000: Mark static data init functions as av_cold	11 years ago
Lou Logan	88f2586adb	fix various typos Signed-off-by: Lou Logan <lou@lrcd.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	e54f4510aa	avcodec/jpeg2000: zero i/f_data Fixes uninitialized use of variables Fixes part of Ticket2921 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	9e477a3770	jpeg2000: fix null pointer dereference in case of malloc failure Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	09927f3eaa	jpeg2000: zero reslevel array on allocation prevent use of uninitialized values Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	912ce9dd20	jpeg2000: fix dereferencing invalid pointers Found-by: Laurent Butti <laurentb@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	f57119b8e5	jpeg2000: fix overflow in dequantization 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>	12 years ago
Luca Barbato	daeb4e3042	jpeg2000: Proper cleanup on failure in decode_frame() Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	db13e02c6f	jpeg2000: Compute corrections of sub-band coordinates Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	5bf208f659	jpeg2000: Use separate fields for int and float codepaths Split stepsize and data into int and float variants. Eliminates a number of casts and simplifies spotting errors. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	690c8af97b	jpeg2000: Remove unneeded variable initialization Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	4cbd5ed11b	jpeg2000: Fix compute precedence error in lut_gain index Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	952f7ed3c0	jpeg2000: Compute quantization for 'scalar derived' in the correct case. Scalar derived case is represented by the JPEG2K_QSTY_SI define. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	b44925ae6b	jpeg2000: Initialize code blocks structures in precincts to 0 Prevent use of uninitialized memory / valgrind failure. Found-by: ubitux Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	2c3901b2c3	jpeg2000: Remove unneeded returns Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	78962d3df4	jpeg2000: Check that nreslevels2decode has been initialized before use Avoid buffer overread. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	4e11b15534	jpeg2000: Calculate code-block coord in ff_jpeg2000_init_component() Signed-off-by: Luca Barbato <lu_zero@gentoo.org> Signed-off-by: Nicolas Bertrand <nicoinattendu@gmail.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	ffb1051b9b	jpeg2000: Zero prec->cblk Prevent use of uninitialized memory / valgrind failure Found-by: ubitux Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	6e9bfc19bd	jpeg2000: check that nreslevels2decode has been initialized before use Fixes out of array accesses Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	234f76ae7d	jpeg2000: Fix unintended sign extension in malloc arguments of prec Fixes: CID1026772/3 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	d8c10324ed	jpeg2000: Fix Unintended sign extension in malloc arguments of cblk. Fixes CID1026770 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	9d56ccf5af	j2k/jpeg2000dec: merge Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	62d00aa22f	jpeg2000/j2k: merge j2k/jpeg2000.c/h Now only j2kdec / jpeg2000dec.c remain Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	c2ac389bba	jpeg2000: remove unneeded casts Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	09e03a8467	jpeg2000: merges quantization fixes from j2k Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	efc2df2e27	jpeg2000: remove unneeded variable initialization Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago

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73 Commits (77f359670fdbfcd7ac2a464b3bc000b1ceb54763)