FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	5cd57e8758	avcodec/jpeg2000dec: check sample sepration for validity Fixes division by 0 Fixes Ticket2841 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	bff371e34c	jpeg2000dec: simplify jpeg2000_read_bitstream_packets() 23 lines less less error prone as theres no more need to update *_size on every read Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	1434df3b93	jpeg2000dec: Support non subsampled 9-16bit planar pixel formats This applies changes similar to `fc6de70c44` to the >8bit codepath Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	db33010483	jpeg2000dec: silence unused variable warning Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	fc6de70c44	jpeg2000dec: Support non subsampled 8bit planar pixel formats Fixes file2.jp2 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	99de97cabf	jpeg2000dec: parse CDEF Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Conflicts: libavcodec/jpeg2000dec.c Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Carl Eugen Hoyos	b39a6bbe7f	Fix pix_fmt detection in the native jpeg2000 decoder. Based on `b7a928b` by Michael Bradshaw. Fixes ticket #2683. Reviewed-by: Nicolas Bertrand	12 years ago
Nicolas Bertrand	f56fe04de3	jpeg2000: Initialize only once mqc arrays Improves decoding speed. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 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
Nicolas Bertrand	dd1382ac95	jpeg2000: Initialize only once mqc arrays Increases encoding and decoding speed Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	95a57d26d8	jpeg2000: Use the matching coding style struct for transform selection Fixes a null pointer dereference. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	22e18ea39e	jpeg2000: Optimize output sample conversion 67935 -> 29984 kcycles Reviewed-by: Nicolas BERTRAND <nicoinattendu@gmail.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	f0552e63a6	jpeg2000: Reset s->numX/Ytiles on tile deallocation Keep the structure fields more consistent after cleanup. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	d57c737ac3	jpeg2000: Simplify jpeg2000_decode_packets() Raise PATCHWELCOME error in case of non-implemented progression order. 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
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	e11099db20	jpeg2000: Optimize dequantization Float: 4700 -> 2700 cycles Integer: 4400 -> 2800 cycles (sandybridge i7) Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	09d5929f37	jpeg2000: Do not crash on NULL node in tag_tree_decode Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	c1dcbc590d	jpeg2000: Do not assume a single tile In preparation of supporting multiple tiles. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	aa16bbaf9b	jpeg2000: Refactor SOT marker parsing Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	53d5d89c1b	jpeg2000: Speed up jpeg2000_decode_tile() Skip processing bands with dimension set to 0. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	64f6570c6e	jpeg2000: Use EBCOT's CAUSAL and BYPASS mode in decode_cblk() Speed it up a bit. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	589e5b52f6	jpeg2000: Use the correct sizeof in memset for T1 data 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	f9581f1414	jpeg2000: Improve reduced resolution decoding Correctly scale down the component coordinates and clean up some redundant code. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	5b73916d34	jpeg2000: Simplify init_tile() Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	a458b91cf4	jpeg2000: Split int/float codepaths depending on the DWT DWT53 is always int, DWT97 is always float. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	33e665a6ab	jpeg2000: Update pixel format support Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	b564784a20	jpeg2000: Check that there is a SOT before SOD Avoid overreads. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	ef35d6dbc6	jpeg2000: Propagate error code from get_cox() 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	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	cf04af2086	jpeg2000: Check that we have enough components for MCT Avoid overread. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	86a2602e16	jpeg2000: Drop unused and writeonly fields Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	fd54dd028b	jpeg2000: check len before parsing header Avoid overread. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	17e5d614a8	jpeg2000: Check zero bit-plane validity Prevent integer overflows. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Luca Barbato	7e201d575d	jpeg2000: Validate block lengthinc Currently we are using an array with a static data size. Similar to a patch with the same purpose by Michael Niedermayer. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	278a923c51	jpeg2000: Validate SIZ parsing Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	d3cb302b88	jpeg2000: Validate SOT parsing Avoid some overreads. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	ac921338a4	jpeg2000: Correctly calculate sgnd Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	eae63e3c15	jpeg2000: Check component number in get_coc() and get_qcc() Avoid overreads. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Nicolas Bertrand <nicoinattendu@gmail.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	1a3598aae7	jpeg2000: Use bytestream2 Prevent a number of overreads. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Luca Barbato	5efadcb8cd	jpeg2000: Clean up return paths and error messages Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Luca Barbato	be3271009e	jpeg2000: Define the maximum decomposition levels And define the resolution levels according. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Michael Niedermayer	fbcc03db8f	jpeg2000: Check code-block size 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
Luca Barbato	5650e331a7	jpeg2000: Validate resolution levels There are 32 maximum decomposition levels, thus 33 resolution levels. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Carl Eugen Hoyos	0915b531bc	Rename "AVClass class" as "AVClass component_class". The aix header math.h defines "extern int class()" for C.	12 years ago
Michael Niedermayer	32fc8d6db6	avcodec/jpeg2000dec: check that tp_end is after the start Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	582f53349e	jpeg2000dec: make cblk->length(inc)/data use consistent Fixes Ticket2612 Reviewed-by: Nicolas BERTRAND <nicoinattendu@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	3b86174290	avcodec/jpeg2000dec: move bpno check to a earlier place This prevents additional integer overflows Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	69e4d8e6a4	avcodec/jpeg2000dec: check len before parsing header Fixes out of array read Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago

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243 Commits (e34a3468f294f21878875e0f6ad5564cd52af70e)