FFmpeg

Commit Graph

Author	SHA1	Message	Date
Andreas Rheinhardt	39b60359db	avcodec/j2kenc: Fix undefined shifts of negative numbers Also add parentheses to some lines to make the operator precedence clearer. This affected the FATE-tests vsynth-jpeg2000 and vsynth-jpeg2000-97 (where * ranges over { 1, 2, 3, _lena }) as well as ticket #7983. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	5 years ago
Carl Eugen Hoyos	7b51b8020c	lavc/j2kenc: Support AV_PIX_FMT_PAL8.	7 years ago
Michael Niedermayer	b5587fd2c6	avcodec/jpeg2000: Only allocate Jpeg2000Pass for the encoder Reduces memory needed. Fixes: OOM Fixes: 4427/clusterfuzz-testcase-minimized-5106919271301120 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	0674087004	avcodec/j2kenc: Fix out of array access in encode_cblk() Fixes: 4427/clusterfuzz-testcase-minimized-5106919271301120 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	7c191dfba7	avcodec/j2kenc: Only allocate cblk.data once Fixes: memleak Found-by: <jamrial> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	3d5822d9cf	avcodec/jpeg2000: Dynamically allocate codeblock data 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>	7 years ago
Martin Vignali	4ada428aae	avcodec: remove remaining uses of avcodec_get_chroma_sub_sample Replace them with av_pix_fmt_get_chroma_sub_sample. Signed-off-by: James Almer <jamrial@gmail.com>	7 years ago
Aaron Boxer	b6b4b0a65e	avcodec/j2kenc: Add attribution to OpenJPEG project: http://ghostscript.com/~tor/gs-browse/gs/openjpeg/libopenjpeg/t1.c Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Carl Eugen Hoyos	f253c34175	lavc/j2kenc: Remove experimental flag. The encoder produces valid and - if requested - lossless files.	9 years ago
Michael Niedermayer	e36db49b7b	avcodec: Add a min size parameter to ff_alloc_packet2() This parameter can be used to inform the allocation code about how much downsizing might occur, and can be used to optimize how to allocate the packet Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	d759f7f1d0	avcodec/j2kenc: remove unused variable Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Carl Eugen Hoyos	97fa0f37fe	lavc/j2kenc: Enable yuv42x and yuv41x encoding. Fixes ticket #535. Fixes ticket #4524.	10 years ago
Michael Niedermayer	9f653e6d36	avcodec/j2kenc: Support user specified tile dimensions Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Carl Eugen Hoyos	0f5b996531	lavc/j2kenc: Make jp2 output compatible with Kakadu. Fixes ticket #4689.	10 years ago
Michael Niedermayer	5c047f3ad4	avcodec/j2kenc: store libavcodec ident in a comment unless bitexact mode is used 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	7e2bdea764	avcodec/j2kenc: Use JP2 format by default Without the JP2 fields its not possible to identify the colorspace Fixes Ticket538 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	9a2fc170b1	avcodec/j2kenc: Support writing JP2 encapsulation The added option matches openjpeg Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	bb3703a4c3	avcodec/j2kenc: YUV should not use the ICT Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	4624656797	avcodec/j2kenc: Properly flush the end of the truncated AC stream Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	2580bae54a	avcodec/j2kenc: Use ret < 0 instead of ret != 0 for error checks This is how most code in FFmpeg checks for failures Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Himangi Saraogi	b020a25df2	avcodec/j2kenc: Initialize variable to silence compiler warnings Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	2daf580284	avcodec/j2kenc: use av_malloc(z)_array() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	8443b27072	avcodec/j2kenc: drop dependancy on sizeof(AVFrame) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Clément Bœsch	b46f19100b	cosmetics: group remaining .name and .long_name. See `b2bed9325`.	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
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	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	8bedbb82ce	j2k/jpeg2000: split data pointer in int & float. This fixes a TODO item and unifies both decoders structures It also fixes undefined behavior due to aliasing violations I choose 2 fields instead of a union because mistakely using the wrong type with a union will lead to hard to debug "wrong output" while with 2 fields mistakely using the wrong type will crash with a null pointer derefernce which is much easier to debug Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	83fd377c94	j2k/jpeg2000: merge float DWT and related code the float conditions are largely changed to check the DWT instead of the bitexact flag, which previously was wrong (DWT53 is always int) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	fe7136ef82	j2k/jpeg2000: split stepsize in float & int variables This is more clear and less prone to mistakes. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	9c66da517f	j2kenc: Zero DWT struct on allocation Should fix fate Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	8cf57efdd7	j2k/jpeg2000: merge lowres code This also fixes lowres use with ffplay Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	d4a4661342	j2k/jpeg2000: merge j2k & jpeg2000 dwts, drop j2k dwt Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	ee189701a6	j2kenc: Allow encoding with the 9/7 wavelet Also add a fate test that tests 9/7 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	243cc38d94	j2k: change fixed point of stepsize to 16.16 This seems more natural and matches jpeg2000 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	1b5cb6c00a	j2k/jpeg2000: Partially merge quantization code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	c2e942099a	j2k: drop cblknx/y from Jpeg2000Band Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	8c2e201c4f	j2k/jpeg2000: drop xi/yi0/1 from Jpeg2000Prec Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	cbaa0871c2	j2kenc: switch to cblk in prec Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	bd89b2b22a	j2k/jpeg2000: log2_prec size cleanup This also changes the cblk size storage method to what jpeg2000 uses Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	b4013899e2	j2k: s/ff_j2k_getsigctxno/ff_jpeg2000_getsigctxno/g Also add a related comment Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	e66faf71eb	j2k: merge ff_j2k_init_tier1_luts() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	69b9773980	j2k: s/getnbctxno/getsigctxno/g Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	5157ec89ef	j2k: redesign vert_causal_ctx_csty implementation The old implementation was incomplete and could not have worked This also fixes some warnings New code is untested as i dont seem to have a sample file that uses this. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	d42106c3ac	j2k: rename a few inline functions and data tables to match jpeg2000 also inlcudes some other cosmetics Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	78c7bff04a	avcodec/j2k: rename J2K_ constants to JPEG2000_ This should simplify merging the 2 decoders Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	0ab0ed2b86	j2k: Rename structs to be more similar to jpeg2000dec This should simplify merging Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	c1c2b0b339	avcodec: rename jpeg2000 decoder to j2k Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago

1 2

81 Commits (df08db07110dc00f7dc0ca8bc5162fffcb9008c7)