FFmpeg

Commit Graph

Author	SHA1	Message	Date
Andreas Rheinhardt	abf1a4f05c	avcodec/intrax8: Reduce the size of tables used to initialize VLCs By switching from ff_init_vlc_sparse() to ff_init_vlc_from_lengths() one can replace an array of codes of type uint16_t with an array of symbols of type uint8_t, saving space. Also remove some more code duplication while at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	d1a1f11712	avcodec/intrax8: Avoid code duplication when initializing VLCs Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	ba69ee8801	avcodec/intrax8: Remove VLC offsets table Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	b1af617f51	avcodec/intrax8: Make ff_intrax8_common_init() thread-safe In particular, don't reinitialize VLCs every time an IntraX8Context is initialized. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	802baf212d	avcodec/intrax8: Replace always-false check by assert Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Michael Niedermayer	0a9ccc2514	avcodec/intrax8: Check for end of bitstream in ff_intrax8_decode_picture() Fixes: Timeout (105sec -> 1sec) Fixes: 20479/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5769846937878528 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	5 years ago
Diego Biurrun	dcc39ee10e	lavc: Remove deprecated XvMC support hacks Deprecated in 11/2013.	8 years ago
Diego Biurrun	ee59f05408	intrax8: Have function signature match across declaration and definition libavcodec/intrax8.c(776) : warning C4028: formal parameter 1 different from declaration	8 years ago
Diego Biurrun	3281d823cd	intrax8: Change type of array stride parameters to ptrdiff_t ptrdiff_t is the correct type for array strides and similar. Also rename all such parameters to "stride" for consistency.	8 years ago
Carl Eugen Hoyos	db8e8c9731	lavc/intrax8: Use correct printf specifier for size_t on Windows.	8 years ago
Vittorio Giovara	41ed7ab45f	cosmetics: Fix spelling mistakes Signed-off-by: Diego Biurrun <diego@biurrun.de>	9 years ago
Michael Niedermayer	76d0209db4	avcodec/intrax8: Remove duplicated chunk from `ba5bcf9612` Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Vittorio Giovara	ca8c759173	intrax8: Remove mpegvideo dependency	9 years ago
Diego Biurrun	6ebd06a9b2	intrax8: Drop lots of pointless parentheses Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	9b57995cdd	intrax8: Drop MB emulation code This is already performed in init_context_frame().	9 years ago
Vittorio Giovara	9fa888c028	intrax8: Keep a reference to the decoder blocks	9 years ago
Vittorio Giovara	c2084ffcbf	intrax8: Use the generic horizband function This is assuming that intrax8 has no support for interlacing Carry over lowdelay value in ff_intrax8_decode_picture.	9 years ago
Vittorio Giovara	b1268e0f03	intrax8: Pass macroblock coordinates to ff_intrax8_decode_picture These values need to be updated with the last macroblock position, so keep them as pointers.	9 years ago
Vittorio Giovara	d0540fd021	intrax8: Pass macroblock size to ff_intrax8_common_init Helps in decoupling this code from mpegvideo.	9 years ago
Vittorio Giovara	159323897f	intrax8: Add a local BlockDSPContext and initialize it Helps in decoupling this code from mpegvideo.	9 years ago
Vittorio Giovara	1eaae7abb8	intrax8: Reference the current AVCodecContext It will be needed to initialize BlockDSP in the next commit.	9 years ago
Vittorio Giovara	8072345e9f	intrax8: Keep a reference to the GetBitContext reader Helps in decoupling this code from mpegvideo.	9 years ago
Vittorio Giovara	65f14128c4	intrax8: Use a constant buffer instead of a ScratchpadContext The size of the block is fixed (8x8 plus padding).	9 years ago
Vittorio Giovara	eaeba6f241	intrax8: Pass the output frame to the decoding function Helps in decoupling this code from mpegvideo.	9 years ago
Vittorio Giovara	577393321c	intrax8: Carry over the loopfilter value in ff_intrax8_decode_picture Helps in decoupling this code from mpegvideo.	9 years ago
Vittorio Giovara	68127e1bf8	intrax8: Keep a reference to the context idctdsp Use it instead of the embedded mpegvideo one. Update init function signature to load it directly from the callers.	9 years ago
Vittorio Giovara	65127450ad	intrax8: Make x8_init_block_index not use mpegvideo fields	9 years ago
Vittorio Giovara	922b7e6d86	intrax8: Use local destination buffers These buffers are just a way to store frame pointers and be able to modify them without touching the original ones. The two dependent decoders (WMV2 and VC1) do not need special care for these fields: the former does not seem to use the dest buffers, while the latter reinits them every time to the current frame data buffers. So only keep a local copy rather than the one from mpegvideo.	9 years ago
Diego Biurrun	8dead2aaca	Move const qualifier before type name	9 years ago
Vittorio Giovara	0372e73f91	intrax8: Check and propagate errors from ff_intrax8_common_init This allows dropping an afterwards redundant assert.	9 years ago
Vittorio Giovara	ad8aa8e6c6	intrax8: Move documentation from implementation to header file	9 years ago
Vittorio Giovara	2ade1cdafb	intrax8: K&R formatting cosmetics	9 years ago
Diego Biurrun	6f5ff559db	intrax8: Adjust printf conversion specifier for sizeof expression	9 years ago
Vittorio Giovara	42244ce07a	intrax8: Move a comment to the place it corresponds	9 years ago
Vittorio Giovara	750562549c	intrax8: Wrap multiline macros in do{}while(0) clauses These macros are treated like functions, the wrapping simplifies error checking and avoids deeply nested ifs in the following commit.	9 years ago
Vittorio Giovara	0c6a70873f	intrax8: Move error resilience out of intrax8 The intrax8 decoding process does not imply any kind of error resilience, and the only call present is more related to how mpegvideo works rather than anything else. Therefore have the parent decoders carry out er when actually needed.	9 years ago
Vittorio Giovara	da0c8664b4	mpegvideo: Move various temporary buffers to a separate context	10 years ago
Diego Biurrun	835f798c7d	mpegvideo: cosmetics: Lowercase ugly uppercase MPV_ function name prefixes	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
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
Diego Biurrun	c591d4575a	avcodec: Replace local extern declarations for tables with header #includes	11 years ago
Michael Niedermayer	9a0aa8d02a	avcodec/intrax8: fix regression with wmv3 This also decreases dependancies between intrax8 and the outside 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
Anton Khirnov	1d0feb5d1a	mpegvideo: split ff_draw_horiz_band(). Split out dependency on MpegEncContext.	12 years ago
Anton Khirnov	54974c6298	error_resilience: decouple ER from MpegEncContext	12 years ago
Mans Rullgard	15616eb042	intrax8: move functions from dsputil to own context Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Michael Niedermayer	aee675a326	intrax8: asserts cleanup Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	5e50a5724b	Revert "removing lowres support" There have been multiple user complaints about loosing this feature while its not clear the 3% speedloss claims where real or fabricated. My own testing indicates no statistically significant speed difference both with mpeg2 and mpeg4, and if at all the code with lowres support is a tiny bit faster than without. This reverts commit `92ef4be4ab`, reversing changes made to `2e07f42957`. Conflicts: cmdutils.c libavcodec/arm/vp8dsp_init_arm.c libavcodec/mpegvideo.c libavcodec/mpegvideo.h libavutil/arm/Makefile Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago

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118 Commits (30539394bb8b98ab6f7418e837006ef4c61d79f9)