FFmpeg

Commit Graph

Author	SHA1	Message	Date
Anton Khirnov	fe80fa53bc	4xm: replace forcing EMU_EDGE by a copy The decoder currently sets CODEC_FLAG_EMU_EDGE and relies on get_buffer2() to always provide buffers with linesize == 2 * width. This is wrong, since we place no such restriction on get_buffer2() implementations. Fix this by decoding into internal buffers and copying them to output frames. Since this is a very obscure decoder, the performance hit should not be an issue.	11 years ago
Anton Khirnov	fffca3d278	4xm: return a proper error code.	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Luca Barbato	2f034f255c	4xm: Reject not a multiple of 16 dimension Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	11 years ago
Luca Barbato	59d7bb99b6	4xm: check bitstream_size boundary before using it Prevent buffer overread. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	fbd0dacc8d	4xm: refactor decode_p_block Directly return from code 1, 2 and 6 codepaths and simplify the remaining one to have a single overflow check and a single call to mcdc.	12 years ago
Luca Barbato	94aefb1932	4xm: do not overread the source buffer in decode_p_block Check for out of picture macroblocks before calling mcdc. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	be373cb50d	4xm: do not overread the prestream buffer Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	de2e5777e2	4xm: validate the buffer size before parsing it Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	145023f572	4xm: reject frames not compatible with the declared version Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	1f0c607560	4xm: drop pointless assert Make sure the value of wlog2 is always between 0 and 3.	12 years ago
Luca Barbato	b8b809908e	4xm: forward errors from decode_p_block Partially mitigate out of memory writes. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	50ec1db62d	4xm: fold last_picture lazy allocation in decode_p_frame	12 years ago
Luca Barbato	e7a44f87d0	4xm: refactor fourxm_read_header Split sound and video tag parsing in separate functions.	12 years ago
Luca Barbato	08859d19b4	4xm: use the correct logging context	12 years ago
Diego Biurrun	2832ea26f3	Remove commented-out debug #define cruft	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Anton Khirnov	8097fc9a2d	4xm: check the return value of read_huffman_tables(). CC:libav-stable@libav.org	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	f7d15d2f42	4xm: operate with pointers to AVFrames instead of whole structs. This is more correct and avoids breaking extended_data.	12 years ago
Anton Khirnov	85383d139a	4xm: eliminate a pointless indirection	12 years ago
Anton Khirnov	aa15afb7ce	4xm: simplify code with FFSWAP	12 years ago
Anton Khirnov	10c26e928a	4xm: return meaningful error codes	12 years ago
Anton Khirnov	b047c68783	4xm: don't rely on get_buffer() initializing the frame.	12 years ago
Diego Biurrun	511cf612ac	miscellaneous typo fixes	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
Anton Khirnov	594d4d5df3	lavc: add a wrapper for AVCodecContext.get_buffer(). It will be useful in the upcoming transition to refcounted AVFrames.	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Mans Rullgard	acb2c79c21	4xm: fix invalid array indexing Indexing outside arrays is invalid and breaks with gcc 4.8. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Diego Biurrun	a92be9b856	Replace memset(0) by zero initializations. Also remove one pointless zero initialization in rangecoder.c.	13 years ago
Martin Storsjö	9cf0841ef3	dsputil: Add ff_ prefix to the dsputil_init functions Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Martin Storsjö	e96b4a53df	vlc/rl: Add ff_ prefix to the nonstatic symbols Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Yordan Makariev	0c5d78a898	4xm, timefilter: K&R formatting cosmetics Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
Alex Converse	7181c4edee	cosmetics: Remove extra newlines at EOF	13 years ago
Aneesh Dogra	9b55b4bb3a	4xm: Prevent buffer overreads. 4xm decoder while decoding i2 frames can overread the buffer if proper checks are not made. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	3fa646e859	Revert "4xm: Prevent buffer overreads." This reverts commit `295a7c0238`. The patch breaks decoding of regular files (e.g. fate-4xm-2).	13 years ago
Aneesh Dogra	295a7c0238	4xm: Prevent buffer overreads. 4xm decoder while decoding i2 frames can overread the buffer if proper checks are not made. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Aneesh Dogra	4b84f68223	4xm: pass the correct remaining buffer size to decode_i2_frame(). frame_size is the number of bytes left in the packet, so if we are passing buf-4 we can safely read frame_size+4 bytes. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Aneesh Dogra	893f137679	4xm: fix calculation of the next output line position in decode_i2_frame(). The current code doesn't work unless width is an exact multiple of 16. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Anton Khirnov	d09298f0d6	4xm: remove unused variables.	13 years ago
Shitiz Garg	355d917c0b	4xm: Add a check in decode_i_frame to prevent buffer overreads Fixes bugzilla #135 Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Aneesh Dogra	1443ea93d9	4xm: Use bytestream2 functions to prevent overreads Fixes Bug 110. Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	13 years ago
Justin Ruggles	bc78ceec2b	4xm: remove unneeded check for remaining unused data. This is unnecessary complication that only prints a message and does not affect decoding.	13 years ago
Laurent Aimar	1b1182ce97	4xm: prevent NULL dereference with invalid huffman table Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Laurent Aimar	8d518a9c4f	4xm: clear FF_INPUT_BUFFER_PADDING_SIZE bytes in temporary buffers Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Mans Rullgard	84dda40762	4xm: fix signed overflow Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Anton Khirnov	ec6402b7c5	lavc: use designated initialisers for all codecs. It's more readable and less prone to breakage.	13 years ago
Stefano Sabatini	975a1447f7	Replace deprecated FF__TYPE symbols with AV_PICTURE_TYPE_. Signed-off-by: Diego Biurrun <diego@biurrun.de>	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago

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118 Commits (982b596ea6640bfe218a31f6c3fc542d9fe61c31)