FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	6a92598e14	avcodec/mpeg12dec: Redesign index checks for mpeg2_fast_decode_block_intra This fixes the speed regression from `20626f53e9` and still checks sufficiently to prevent out of allocated memory accesses due to the index Before: 1681 decicycles in mpeg2_fast_decode_block_intra, 4194238 runs, 66 skips After: 1658 decicycles in mpeg2_fast_decode_block_intra, 4194248 runs, 56 skips Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Janne Grunau	6d93307f8d	mpeg12: check scantable indices in all decode_block functions Add checks to the fast functions used with CODEC_FLAGS2_FAST and move the check for all other functions to before the invalid memory is accessed. Fixes https://trac.videolan.org/vlc/ticket/9713 with CODEC_FLAGS2_FAST. CC: libav-stable@libav.org	11 years ago
Michael Niedermayer	934bb11ad7	avcodec/mpeg12dec: fix mis-indented line Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	5f54756f7e	avcodec/mpeg12dec: Disable the checked bitstream reader Mpeg1/2 should not need it Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	76b5e99ce9	avcodec/mpeg12dec: Check for overread in mpeg_decode_slice() This is needed in case the checked bitstream reader is disabled Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	d82eccea2b	avcodec/mpeg12dec: check block index in mpeg2_fast_decode_block_non_intra() Prevents some overreads at the cost of 1 cpu cycle Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	0c8e5fb211	avcodec/mpeg12dec: Optimize mpeg1_decode_block_intra() sandybridge i7 274->260 cycles Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	0a59055167	avcodec/mpeg12dec: check for overread in mpeg1_fast_decode_block_inter() No speedloss meassured Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	746350ea0f	avcodec/mpeg12dec: Make mpeg2_fast_decode_block_intra() more robust by breaking out on invalid vlcs Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Carl Eugen Hoyos	c892621577	Fix compilation with --disable-hwaccel=mpeg1_xvmc,mpeg2_xvmc	11 years ago
Ivan Kalvachev	1c63aed232	Convert XvMC to hwaccel v3 Signed-off-by: Ivan Kalvachev <ikalvachev@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Tomer Barletz	fe285b04bb	avcodec/mpeg12dec: Don't create side data when current picture ptr is NULL. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Vittorio Giovara	bacc2869f3	mpeg12dec: parse frame packing arrangement user_data and save relevant stereo3d information	11 years ago
Anton Khirnov	a097f0049b	mpeg12dec: move first_slice from MpegEncContext to Mpeg1Context	11 years ago
John Stebbins	1eaac1d6f7	mpeg12dec: Extract CC user data into frame side data Signed-off-by: Anton Khirnov <anton@khirnov.net>	11 years ago
Diego Biurrun	ad1161799e	mpeg12dec: Remove outdated UV swapping code for VCR2	11 years ago
Diego Biurrun	7b9780e7bf	mpeg12dec: Remove unused swap_uv member from Mpeg1Context	11 years ago
Diego Biurrun	3215140425	mpeg12dec: Remove incomplete and wrong UV swapping code for VCR2 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	19e30a58fc	Deprecate obsolete XvMC hardware decoding support XvMC has long ago been superseded by newer acceleration APIs, such as VDPAU, and few downstreams still support it. Furthermore XvMC is not implemented within the hwaccel framework, but requires its own specific code in the MPEG-1/2 decoder, which is a maintenance burden.	11 years ago
Luca Barbato	08303d7741	hwaccel: Simplify ff_find_hwaccel It is always called by passing fields from an AVCodecContext.	11 years ago
Anton Khirnov	6c7254722a	mpeg12dec: stop using deprecated avcodec_set_dimensions	11 years ago
Michael Niedermayer	18802942d1	avcodec/mpeg12dec: Use skip_1stop_8data_bits() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	e1848aa469	avcodec/mpeg12dec: forward errors when EXPLODE is set Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Clément Bœsch	b46f19100b	cosmetics: group remaining .name and .long_name. See `b2bed9325`.	12 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	12 years ago
Michael Niedermayer	108b91c3fe	avcodec/mpeg12dec: clear mpeg_enc_ctx_allocated when contexts are deallocated Fixes Ticket2950 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	70967a60df	mpeg12dec: also print progressive seq and chroma format Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	a0c6c8e53e	Revert "Merge commit of 'vdpau: remove old-style decoders'" This reverts commit `bf36dc50ea`, reversing changes made to `b7fc2693c7`. Conflicts: libavcodec/h264.c Keeping support for the old VDPAU API has been requested by our VDPAU maintainer Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	38f64c0330	mpeg12decdata.h: Move all tables to the only place they are used	12 years ago
Michael Niedermayer	9706401927	avcodec/mpeg12dec: check slice size before trying to decode it Fixes assertion failure Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Rémi Denis-Courmont	578ea75a9e	vdpau: remove old-style decoders Signed-off-by: Anton Khirnov <anton@khirnov.net>	12 years ago
Rémi Denis-Courmont	93a51984a2	mpeg12: Ignore slice threading if hwaccel is active Slice threading does not work with hardware acceleration, as decoding is per-picture. This fixes Bugzilla #542. Signed-off-by: Diego Biurrun <diego@biurrun.de>	12 years ago
Michael Niedermayer	101c7ea906	avcodec/mpeg12dec: remove commented out assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	970c8df735	mpeg12dec: avoid reinitializtation on PS changes when possible. Fixes Ticket2574 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Janne Grunau	bf20cdbd86	mpeg12: skip frames consistently The decoder did not start predicted frames with missing references but called the end of frame handling on them anyway. This caused an assertion in the VA API HW accelorator since it tried to render a picture with uninitialized buffers.	12 years ago
Diego Biurrun	2832ea26f3	Remove commented-out debug #define cruft	12 years ago
Diego Biurrun	bd8ac88214	avcodec: Add av_cold attributes to end functions missing them	12 years ago
Rainer Hochecker	fe1f36547d	register AV_PIX_FMT_VDPAU for hwaccel	12 years ago
Reimar Döffinger	c10d498bfd	Add thread-safe wrapper for get_format(). Just like get_buffer, get_format should not be called from a different thread if thread_safe_callbacks is not set. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	12 years ago
Diego Biurrun	e557584aa7	mpeg12: Move Mpeg1Context declaration to the only place it is used	12 years ago
Diego Biurrun	1b6d66745a	Split MPEG-1/2 decoder code off from MPEG-1/2 common code	12 years ago
Janne Grunau	757d85868b	vdpau: fix obsolete mpeg1 vdpau decoder when mpeg2 is disabled	12 years ago
Martin Storsjö	f1e9398621	lavc: Rename avpriv_mpv_find_start_code after moving out from mpegvideo Also move the declaration to internal.h, and add restrict qualifiers to the declaration (as in the implementation). Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	0163ad66e1	mpeg2: 12LSB w/h of 0 is not allowed in compliant videos thus this also needs AV_EF_COMPLIANT Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	ce0124acac	mpeg12: do not fail on zero dimensions in the sequence header. The total frame size is a combination of the 12 bits in the sequence header and 2 more bits in the the sequence extension. While the specification explicitly forbids the dimensions from the sequence header from being 0 (thus ruling out multiples of 4096), such videos apparrently exist in the wild so we should attempt to decode them. Based on a patch by Michael Niedermayer <michaelni@gmx.at> Fixes Bug 416.	12 years ago
Reimar Döffinger	23426987fa	mpeg12: reduce hwaccel-related code duplication. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	12 years ago
Michael Niedermayer	64308941d4	mpegvideo: Fix exported qp table offest Found-by: wm4 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	fa80967a73	mpeg1/2: export qp table Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	53fd4f5594	avcodec: fix motion vector vissualization was broken by the buffer ref stuff Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago

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290 Commits (32538dafca37cadad143ca28ceae39b3ea64bb5f)