FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	fa5358f07d	avcodec/rv34: Delay failure return for B frames with a missing reference Failing earlier causes the context to be insufficiently initialized which can break decoding future frames with threads Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	3197c0aa87	avcodec/rv34: Clear pointers in ff_rv34_decode_init_thread_copy() Avoids leaving stale pointers Fixes: signal_sigabrt_7ffff70eccc9_819_sabtriple.rm with memlimit 536870912 Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Vittorio Giovara	da0c8664b4	mpegvideo: Move various temporary buffers to a separate context	10 years ago
Michael Niedermayer	4dee4a4470	avcodec/mpegvideo: Factor ff_mpv_decode_init() out Reviewed-by: Benoit Fouet <benoit.fouet@free.fr> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Janne Grunau	dc4b2e7d33	rv34: use ff_mpeg_update_thread_context only when decoder is fully initialized MpegEncContext based decoders are only fully initialized after the first ff_thread_get_buffer() call. The RV30/40 decoders may fail before a frame buffer was requested. ff_mpeg_update_thread_context() fails on half initialized MpegEncContexts. Since this can only happen before a the first frame was decoded there is no need to call ff_mpeg_update_thread_context(). Based on patches by John Stebbins and tested by John Stebbins. CC: libav-stable@libav.org	10 years ago
Gabriel Dume	4b1f5e5090	cosmetics: Write NULL pointer inequality checks more compactly Signed-off-by: Diego Biurrun <diego@biurrun.de>	10 years ago
Diego Biurrun	835f798c7d	mpegvideo: cosmetics: Lowercase ugly uppercase MPV_ function name prefixes	10 years ago
John Stebbins	998c9f15d1	idct: remove call to ff_idctdsp_init from ff_MPV_common_init One step in untangling the mpegvideo code and fixing some problems in the order that initialization is being done in h263dec and h261dec.	10 years ago
Michael Niedermayer	9195c26d45	avcodec/rv34: fix crash while seeking on very damaged file Fixes null pointer dereference Fixes Ticket2093 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	7b9ef8d701	mpeg: Split error resilience bits off into a separate file	11 years ago
Michael Niedermayer	4a0ec85b85	avcodec/rv34: fix edge emu with uv stride <= 25 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	368f50359e	dsputil: Split off quarterpel bits into their own context	11 years ago
Michael Niedermayer	9f50d3b944	avcodec/rv34: Fix () in GET_PTS_DIFF() macro Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
wm4	f6774f905f	mpegvideo: operate with pointers to AVFrames instead of whole structs The most interesting parts are initialization in ff_MPV_common_init() and uninitialization in ff_MPV_common_end(). ff_mpeg_unref_picture and ff_thread_release_buffer have additional NULL checks for Picture.f, because these functions can be called on uninitialized or partially initialized Pictures. NULL pointer checks are added to ff_thread_release_buffer() stub function. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	11 years ago
Vittorio Giovara	e0c16e4e32	mpegvideo: move mpegvideo formats-related defines to mpegutils.h	11 years ago
Anton Khirnov	ebfe622bb1	mpegvideo: drop support for real (non-emulated) edges Several decoders disable those anyway and they are not measurably faster on x86. They might be somewhat faster on other platforms due to missing emu edge SIMD, but the gain is not large enough (and those decoders relevant enough) to justify the added complexity.	11 years ago
Michael Niedermayer	ea1e630c47	vcodec/rv34: use av_mallocz() to allocate tables Fixes use of uninitialized memory Fixes: msan_uninit-mem_7f75e2a55b88_4146_brokenaudio.rmvb Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Ronald S. Bultje	458446acfa	lavc: Edge emulation with dst/src linesize Allow supporting files for which the image stride is smaller than the maximum 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
Anton Khirnov	1d389e2a80	rv34: stop using deprecated avcodec_set_dimensions	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
Martin Storsjö	fdbd924b84	rv34: Fix a memory leak on errors Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Diego Biurrun	2832ea26f3	Remove commented-out debug #define cruft	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	46728338b0	rv34: 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
Diego Biurrun	5f401b7b71	Add missing error_resilience includes to files that use ER	12 years ago
Michael Niedermayer	d210e9741e	rv34: fix aspect ratio Fixes part of Ticket1550 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	54974c6298	error_resilience: decouple ER from MpegEncContext	12 years ago
Diego Biurrun	218aefce44	dsputil: Move LOCAL_ALIGNED macros to libavutil	12 years ago
Diego Biurrun	82bd04b170	rv34: Drop now unnecessary dsputil dependencies	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
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
Clément Bœsch	8b63744f48	Fix "bistream" typo and add a check in tools/patcheck.	12 years ago
Michael Niedermayer	68def00a63	rv34: check image size before using it fixes assertion failure Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Janne Grunau	b16d001b62	rv34: use ff_MPV_common_frame_size_change() Specialised functionality for size changes with the advantage of supporting frame size changes during frame-based multithreading.	12 years ago
Piotr Bandurski	53241b5dc7	lavc: add missing new line to some messages Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Ronald S. Bultje	774b681b80	rv34: remove inline keyword from rv34_decode_block(). Force-inlining increases object size by 8kB and causes a 2% slowdown.	13 years ago
Christophe Gisquet	0195ab5f5f	rv40: change a logical test into a bitwise one. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Christophe Gisquet	8802799991	rv34: remove constant parameter is_block2 was always 0, so just remove it, and change accordingly the code. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Christophe GISQUET	272b252c01	rv40dsp: implement prescaled versions for biweight. Quite often, the original weights are multiple of 512. By prescaling them by 1/512 when they are computed (once per frame), no intermediate shifting is needed, and no prescaling on each call either. The x86 code already used that trick. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Michael Niedermayer	2d0b4bc4cf	rv34: Fix check_slice_end() handling of 0 bits left case Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Diego Biurrun	a92be9b856	Replace memset(0) by zero initializations. Also remove one pointless zero initialization in rangecoder.c.	13 years ago
Ronald S. Bultje	5484170ac7	rv34: set mb_num_left to 0 after finishing a frame Prevents running error resilience on a previous frame which will write to the pic->mb_type[] array of the previous image. The array might already be re-used for a new image in a subsequent thread, thus cause two threads to write to the same pic->mb_type[] array, causing a race condition which can crash in rv34_decode_cbp(), called by rv34_decode_inter_mb_header() (which accesses mb_type[] twice, assuming values are maintained, which the race condition breaks). Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Janne Grunau	cb7190cd2c	rv34: error out on size changes with frame threading	13 years ago
Janne Grunau	73ad4471a4	rv34: Handle only complete frames in frame-mt. Correct handling of errors to prevent hags or crashes is very complex otherwise. The frame initializing is also moved from decode_slice() to decode_frame() for clarity.	13 years ago
Christophe GISQUET	294c05ce8a	rv34: remove dead code in intra availability check This was an incorrect copy-and-paste to a code not needing the original code. Spotted by Jason in a previous review but forgotten in the commit. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Christophe GISQUET	7104c23bd1	rv34: clean a bit availability checks. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago

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225 Commits (b966a403dd80604bb7dbb9ee6ec331ade0e84953)