FFmpeg

Commit Graph

Author	SHA1	Message	Date
Luca Barbato	825c7c62bb	mpegvideo: Move 8x8 in a separate function	11 years ago
Luca Barbato	95587859cc	mpegvideo: Move obmc in a separate function	11 years ago
Luca Barbato	a84616b736	mpegvideo: K&R formatting cosmetics	11 years ago
Ronald S. Bultje	93f305473f	lavc: Convert some remaining strides to ptrdiff_t	11 years ago
Ronald S. Bultje	face578d56	Rewrite emu_edge functions to have separate src/dst_stride arguments. This allows supporting files for which the image stride is smaller than the max. block size + number of subpel mc taps, e.g. a 64x64 VP9 file or a 16x16 VP8 file with -fflags +emu_edge.	11 years ago
Ronald S. Bultje	c341f734e5	Convert multiplier for MV from int to ptrdiff_t. This prevents emulated_edge_mc from not undoing mvy*stride-related integer overflows. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	2ffead98dd	avcodec: add emuedge_linesize_type Currently all uses of the emu edge code as well as the code itself assume int linesize changing some but not changing all would introduce a security issue once all use this typedef a simple search and replace can be done to switch them all to ptrdiff_t Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Martin Storsjö	a711a2cb47	mpegvideo: Avoid 32-bit wrapping of linesize multiplications This makes sure that linesize * start_y doesn't overflow, so that emulated_edge_mc can get back the original value if needed. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Ronald S. Bultje	f4fed5a2f9	mpegvideo: Use hpeldsp instead of dsputil for half-pel functions This also converts vc1, since that is mpegvideo-based. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	42bcc4082d	avcodec/mpegvideo_motion: Use a field from the current frame if the last is unavailable in DMV & 16x8 Fixes null pointer dereference Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	23daee0dcc	avcodec/mpegvideo_motion: Check P field references If a reference is unavailable use a field from the current picture Fixes null pointer dereference Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	66ac3dbf1e	h261: Move function declarations to h261.h	12 years ago
Michael Niedermayer	3969b4b861	gmc: Always use edge emu The gmc functions access more pixels than there is allocated memory. Fixes out of array reads Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Ronald S. Bultje	4ba5dbc0e4	mpegvideo: use hpeldsp instead of dsputil for half-pel functions. This also converts vc1, since that is mpegvideo-based.	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Diego Biurrun	218aefce44	dsputil: Move LOCAL_ALIGNED macros to libavutil	12 years ago
Ronald S. Bultje	8c53d39e7f	lavc: introduce VideoDSPContext Move some functions from dsputil. The idea is that videodsp contains functions that are useful for a large and varied set of video decoders. Currently, it contains emulated_edge_mc() and prefetch(). Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Mans Rullgard	5e39bb073a	mpegvideo: simplify dxy calculation in hpel_motion() Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Janne Grunau	154ff81870	h263: avoid memcpys over array bound in motion vector caching for obmc Fixes CID602232.	12 years ago
Mans Rullgard	2568646abb	mpegvideo: drop unnecessary arguments to hpel_motion() These arguments are either constants or copies of MpegEncContext fields just as easily accessed within the function. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	66f5a6b419	mpegvideo: drop 'inline' from some functions These functions do not benefit from being inlined. They are large, and there are no opportunities for constant propagation. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	f69f4036f8	mpegvideo: reduce excessive inlining of mpeg_motion() The main benefit of inlining this function is from constant propagation for the 'field_based' argument. Instead of inlining all calls, create two versions of the function for field_based values of 0 and 1. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	7a851153d3	mpegvideo: convert mpegvideo_common.h to a .c file This file defines a single, huge function, MPV_motion(), which although being declared inline is not actually inlined by the compiler (for good reason). There is thus no sense in defining this function in a header file, resulting in multiple copies of it in the final library. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	13 years ago
Mans Rullgard	87cf481aa8	mpegvideo: remove unnecessary inclusions of faandct.h Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Michael Niedermayer	18f2d5cb9c	mpegvideo: Don't use ff_mspel_motion() for vc1 Using ff_mspel_motion assumes that s (a MpegEncContext poiinter) really is a Wmv2Context. This fixes crashes in error resilience on vc1/wmv3 videos. CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Michael Niedermayer	3000074495	mpegvideo_common.h: use av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Martin Storsjö	efd29844eb	mpegvideo: Add ff_ prefix to nonstatic functions Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Martin Storsjö	99560a4caa	libavcodec: Add ff_ prefix to some nonstatic symbols Prefix the functions atrac_generate_tables, atrac_iqmf, dct_quantize_c. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Martin Storsjö	a082ac4125	mpegvideo: Remove a leftover function declaration Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
John Brooks	9b6aafba6c	mpegvideo: fix invalid memory access for small video dimensions When either video dimension is only one macroblock, subtractions based on v_edge_pos and the macroblock size may be negative. In that situation, an unsigned comparison isn't sufficent to test for MV overruns, because a limit of (unsigned)-1 will let any other value pass. Signed-off-by: Anton Khirnov <anton@khirnov.net>	13 years ago
Diego Biurrun	58c42af722	doxygen: misc consistency, spelling and wording fixes	13 years ago
Diego Biurrun	ee41963f19	cosmetics: drop some completely pointless parentheses	13 years ago
Michael Niedermayer	50d6f81956	mpegvideo: dont use ff_mspel_motion() for vc1 Fixes Ticket655 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Diego Biurrun	657ccb5ac7	Eliminate FF_COMMON_FRAME macro. FF_COMMON_FRAME holds the contents of the AVFrame structure and is also copied to struct Picture. Replace by an embedded AVFrame structure in struct Picture.	14 years ago
Stefano Sabatini	ce5e49b0c2	replace deprecated FF__TYPE symbols with AV_PICTURE_TYPE_	14 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
Ronald S. Bultje	d23e3e5fea	Move ff_emulated_edge_mc() into DSPContext. (cherry picked from commit `2e27959879`)	14 years ago
Ronald S. Bultje	2e27959879	Move ff_emulated_edge_mc() into DSPContext.	14 years ago
Diego Elio Pettenò	295edc7794	Make denoise_dct_c and dct_quantize_trellis_c static. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `1d4da6a460`)	14 years ago
Diego Elio Pettenò	1d4da6a460	Make denoise_dct_c and dct_quantize_trellis_c static. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Diego Biurrun	9a58234fea	Fix misspelled parameter names in Doxygen documentation. This fixes one Doxygen warning each. Originally committed as revision 23970 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Eli Friedman	99267eb702	Fix strict-aliasing violations in MPV_motion_internal. Patch by Eli Friedman, eli D friedman A gmail Originally committed as revision 23894 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Jason Garrett-Glaser	c31a25e79c	Use right-shift instead of division by two. Patch by Dark Shikari Originally committed as revision 23723 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
Diego Biurrun	d702a2e6c6	Get rid of pointless CONFIG_WMV2 definition. Originally committed as revision 20971 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	078cdecf9e	Set mb_y in mpeg2 field pictures like h264 does. This fixes -vismv & -debug 16384 with field pictures. Originally committed as revision 20670 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	22d4f21331	Make ""MPEG motion vector out of boundary" message more verbose. Originally committed as revision 20669 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Jeff Downs	81b44c42d5	Cosmetic: Reindent after last commit Originally committed as revision 19576 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

35 Commits (2cf94485de9aa0e8f4552fd9477e0d4bc5cb84bc)