FFmpeg

Commit Graph

Author	SHA1	Message	Date
Anton Khirnov	15baa0c1ac	lavc/mjpegdec: cosmetics, org->orig	4 years ago
Anton Khirnov	e15371061d	lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump They are not properly namespaced and not intended for public use.	4 years ago
Anton Khirnov	19ce064239	smvjpegdec: merge into mjpegdec SMVJPEG stores frames as slices of a big JPEG image. The decoder is implemented as a wrapper that instantiates a full internal MJPEG decoder, then forwards the decoded frames with offset data pointers. This is unnecessarily complex and fragile, not supporting useful decoder capabilities like direct rendering. Re-implement the decoder inside the MJPEG decoder, which is accomplished by returning each decoded frame multiple times, setting cropping information appropriately on each instance. One peculiar aspect of the previous design is that since - the smvjpeg decoder returns one frame per input packet - there are multiple frames in each packets (the aformentioned slices) the demuxer needs to return each packet multiple times. This is now also eliminated - the demuxer now returns each packet exactly once, with the duration set to the number of frames it decodes to. This also removes one of the last remaining internal uses of the old video decoding API.	4 years ago
Anton Khirnov	e9a2a87773	mjpegdec: convert to receive_frame() This will be useful in the following commit.	4 years ago
Nick Renieris	40abff05d2	lavc/mjpegdec: Decode Huffman-coded lossless JPEGs embedded in DNGs Main image data in DNGs is usually comprised of tiles, each of which is a Huffman-encoded lossless JPEG. Tested for ljpeg regressions with: `ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi` `ffmpeg test.avi out.avi` The modified code in ljpeg_decode_rgb_scan runs without issues. Signed-off-by: Nick Renieris <velocityra@gmail.com>	6 years ago
Michael Niedermayer	8d381b57fd	avcodec/mjpegdec: Check input buffer size. Fixes: Timeout Fixes: 6381/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-5665032743419904 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
Mark Thompson	6c0bfa30c0	mjpegdec: Add hwaccel hooks Also adds some extra fields to the main context structure that may be needed by a hwaccel decoder.	7 years ago
Mateusz	149268b47c	fix MSVC compilation errors After commit `3701d49` 'error_resilience: remove avpriv_atomic usage' we have included windows.h in much more files and we should avoid conflicts with defines/function declarations. Signed-off-by: Mateusz Brzostek <mateuszb@poczta.onet.pl> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Martin Vignali	cbbec68847	libavcodec/blockdsp : add AVX version Also modify the required alignment, to 32 instead of 16 for several codecs Signed-off-by: James Almer <jamrial@gmail.com>	8 years ago
Derek Buitenhuis	9e02f35f6a	mjpeg: Add support for ICC side data JPEGs store embedded profiles under the APP2 marker, signified with a "ICC_PROFILE" null-terminated string header, and can be split across multiple APP2 markers, out of order. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	8 years ago
Michael Niedermayer	23f3f92361	avcodec/mjpegdec: quant_matrixes can be up to 65535, use uint16_t Fixes invalid shift Fixes: 870/clusterfuzz-testcase-5649105424482304 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Vittorio Giovara	41ed7ab45f	cosmetics: Fix spelling mistakes Signed-off-by: Diego Biurrun <diego@biurrun.de>	9 years ago
Michael Niedermayer	dde6b2a355	avcodec/mjpegdec: dont try to combine fields for decimated multiscope 2 material Fixes Ticket4535 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	e15455891b	avcodec/mjpegdec: Change upscale_* to an array instead of a bitmask This allows storing integer factors instead of just 0 and 1 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	d5a3a20d1e	avcodec/mjpegdec: simplify chroma_height calculation Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Diego Biurrun	e3fcb14347	dsputil: Split off IDCT bits into their own context	11 years ago
Diego Biurrun	e74433a8e6	dsputil: Split clear_block/fill_block off into a separate context	11 years ago
Michael Niedermayer	254f653b24	avcodec/jpeglsdec: add PAL8 support Fixes Ticket3478 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	681e72a668	avcodec/mjpegdec: parse adobe_transform Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	2884688bd5	avcodec/mjpegdec: pass into ff_mjpeg_decode_sos() and check bitmask size Fixes: heap array overread Fixes: asan_heap-oob_149b2bc_6577_m1.mxg Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Kirill Gavrilov	e9e7e68516	mjpegdec: parse JPS extension and save relevant stereo3d information Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Anton Khirnov	d48132b7de	mjpegdec: apply flipping after decoding, not before This is simpler and removes a silly restriction on edges being present.	11 years ago
Anton Khirnov	e2274aa555	mjpegdec: use the AVFrame API properly.	11 years ago
Thilo Borgmann	bb4e1b4cf9	avcodec/mjpegdec: Read EXIF metadata in JPEG input. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	96747e6cbe	mjpegdec: parse app-xfrm Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	7afa68d37d	mjpegdec: parse app-colr Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	15cee5e562	mjpegdec: Fix used quant index for gbr Fixes Ticket1651 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Ronald S. Bultje	28bc406c84	mjpeg: Use hpeldsp instead of dsputil for half-pel functions Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Ronald S. Bultje	e0a8f31591	mjpeg: use hpeldsp instead of dsputil for half-pel functions.	12 years ago
Diego Biurrun	88bd7fdc82	Drop DCTELEM typedef It does not help as an abstraction and adds dsputil dependencies. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	12 years ago
Anton Khirnov	df9b956751	lavc: fix decode_frame() third parameter semantics for video decoders It's got_frame, not data size	12 years ago
Lou Logan	6851130fd6	cosmetics: minor libavcodec spelling errors Also update some common misspelled words in patcheck Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Carl Eugen Hoyos	d185278c36	Support decoding of some unusual jpeg samples. Avoid unsupported pix_fmts by upscaling chroma. Fixes ticket #878.	13 years ago
Carl Eugen Hoyos	387d86077f	Support decoding yuv442 and yuv421 jpeg images. Fixes ticket #787.	13 years ago
Anton Khirnov	1f0c7020a1	mjpegdec: add 'extern_huff' private option. Deprecate CODEC_FLAG_EXTERN_HUFF	14 years ago
anatoly	dd1e5bfd5e	Add support for picture_ptr field in MJpegDecodeContext Signed-off-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
anatoly	7e6a9e6444	Move MJPEG's input buffer preprocessing in separate public function Signed-off-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
anatoly	34686566f3	Support reference picture defined by bitmask in MJPEG's SOS decoder With cleanup & simplification by me Signed-off-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
anatoly	e0e3b8b297	Add support for picture_ptr field in MJpegDecodeContext Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
anatoly	f16055eedf	Move MJPEG's input buffer preprocessing in separate public function Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
anatoly	8f0bd2c07d	Support reference picture defined by bitmask in MJPEG's SOS decoder Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Michael Niedermayer	5675a11f92	Add a seperate VLC table for progressive jpeg so we dont have to subtract 16 in the inner loop. Originally committed as revision 25545 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Diego Biurrun	ba87f0801d	Remove explicit filename from Doxygen @file commands. Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	84dc2d8afa	Remove DECLARE_ALIGNED_{8,16} macros These macros are redundant. All uses are replaced with the generic DECLARE_ALIGNED macro instead. Originally committed as revision 22233 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	c67278098d	Move array specifiers outside DECLARE_ALIGNED() invocations Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	ad9feac9fb	Avoid huge array for rgb ljpeg on the stack. Code tested with an ljpeg i had laying around. Originally committed as revision 20433 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Carl Eugen Hoyos	643fc8f107	Flip (M)JPEG frames encoded by Intel JPEG library. Fixes issues 1464 and 1468. Originally committed as revision 20312 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Reimar Döffinger	643fd8a198	Add a got_picture flag to MJpegDecodeContext which indicates if its picture element is valid. Skip the code handling SOS and EOI if not, since it can not work without a valid AVPicture. This fixes a crash with mjpeg/smclockmjpeg.avi.1.0 from issue 1240 where the decoder returned an invalid AVPicture. Originally committed as revision 19342 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Stefano Sabatini	9106a698e7	Rename bitstream.h to get_bits.h. Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

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68 Commits (b2bbcede5e44e4c71d761ac28f3a5c1e653c3cb6)