FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	710600077d	h264_cavlc: switch forgotten assert to av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	506ffa793f	h264_cabac: switch to av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	39f0a45a1a	h264_cavlc: check prefix before using it. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Diego Biurrun	0becb07842	h264: Factorize declaration of mb_sizes array.	13 years ago
Ronald S. Bultje	45b7bd7c53	h264: disallow constrained intra prediction modes for luma. Conversion of the luma intra prediction mode to one of the constrained ("alzheimer") ones can happen by crafting special bitstreams, causing a crash because we'll call a NULL function pointer for 16x16 block intra prediction, since constrained intra prediction functions are only implemented for chroma (8x8 blocks). Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Alex Converse	7181c4edee	cosmetics: Remove extra newlines at EOF	13 years ago
Michael Niedermayer	38331d2036	h264: disable checking reader, overreads are not possible in ffmpegs h264 decoder. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Diego Biurrun	58c42af722	doxygen: misc consistency, spelling and wording fixes	13 years ago
Baptiste Coudurier	76741b0e56	h264: 4:2:2 intra decoding support Signed-off-by: Diego Biurrun <diego@biurrun.de> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Mans Rullgard	8babfc033e	h264: fix invalid shifts in init_cavlc_level_tab() The level_code expression includes a shift which is invalid in those cases where the value is not used. Moving the calculation to the branch where the result is used avoids these. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Laurent Aimar	a4fd95b5d5	h264: fix intra 16x16 mode check when using mbaff and constrained_intra_pred. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Baptiste Coudurier	231a6df9ea	h264dec: h264: 4:2:2 intra decoding 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
Jason Garrett-Glaser	3b7ebeb4d5	H.264: faster write_back_* Avoid aliasing, unroll loops, and inline more functions.	14 years ago
Jason Garrett-Glaser	c90b94424c	4:4:4 H.264 decoding support Note: this is 4:4:4 from the 2007 spec revision, not the previous (now deprecated) 4:4:4 mode in H.264.	14 years ago
Jason Garrett-Glaser	504811baea	Roll back 4:4:4 H.264 for now Needs some ARM/PPC asm modifications.	14 years ago
Jason Garrett-Glaser	c9c493872c	4:4:4 H.264 decoding support Note: this is 4:4:4 from the 2007 spec revision, not the previous (now deprecated) 4:4:4 mode in H.264.	14 years ago
Oskar Arvidsson	fcc0224e4f	Add support for higher QP values in h264. In high bit depth, the QP values may now be up to (51 + 6*(bit_depth-8)). Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Oskar Arvidsson	6e3ef511d7	Add the notion of pixel size in h264 related functions. In high bit depth the pixels will not be stored in uint8_t like in the normal case, but in uint16_t. The pixel size is thus 1 in normal bit depth and 2 in high bit depth. Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Stefano Sabatini	ce5e49b0c2	replace deprecated FF__TYPE symbols with AV_PICTURE_TYPE_	14 years ago
Stefano Sabatini	301183d9be	replace deprecated av_get_pict_type_char() with av_get_picture_type_char()	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
Stefano Sabatini	6209669de4	Replace deprecated av_get_pict_type_char() with av_get_picture_type_char(). Signed-off-by: Diego Biurrun <diego@biurrun.de>	14 years ago
Michael Niedermayer	e7077f5e7b	H264: replace pixel_size by pixel_shift Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Oskar Arvidsson	d268bed209	Add support for higher QP values in h264. In high bit depth, the QP values may now be up to (51 + 6*(bit_depth-8)). Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Oskar Arvidsson	dc172ecc6e	Add the notion of pixel size in h264 related functions. In high bit depth the pixels will not be stored in uint8_t like in the normal case, but in uint16_t. The pixel size is thus 1 in normal bit depth and 2 in high bit depth. Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	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	7f8c11b005	Set gray (128) U/V planes for chroma-less samples. Fixes two fate samples when played with -flags emu_edge. (cherry picked from commit `8bcfe7f7fd`)	14 years ago
Ronald S. Bultje	772225c041	Revert `2a1f431d38`, it broke H264 lossless. (cherry picked from commit `66c6b5e2a5`)	14 years ago
Ronald S. Bultje	66c6b5e2a5	Revert `2a1f431d38`, it broke H264 lossless.	14 years ago
Ronald S. Bultje	8bcfe7f7fd	Set gray (128) U/V planes for chroma-less samples. Fixes two fate samples when played with -flags emu_edge.	14 years ago
Jason Garrett-Glaser	2a1f431d38	H.264/SVQ3: make chroma DC work the same way as luma DC No speed improvement, but necessary for some future stuff. Also opens up the possibility of asm chroma dc idct/dequant. Originally committed as revision 26349 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Jason Garrett-Glaser	5657d14094	H.264: switch to x264-style tracking of luma/chroma DC NNZ Useful so that we don't have to run the hierarchical DC iDCT if there aren't any coefficients. Opens up some future opportunities for optimization as well. Originally committed as revision 26337 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Jason Garrett-Glaser	19fb234e4a	H.264: split luma dc idct out and implement MMX/SSE2 versions About 2.5x the speed. NOTE: the way that the asm code handles large qmuls is a bit suboptimal. If x264-style dequant was used (separate shift and qmul values), it might be possible to get some extra speed. Originally committed as revision 26336 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Jason Garrett-Glaser	b70c95e05a	H.264: 8% faster CAVLC zero-run decoding Originally committed as revision 24736 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 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
Michael Niedermayer	9885284c22	Check level_prefix a bit (this just checks the max our bitreader can handle, as i did nt find a limit in the spec) This should stop cavlc_decode_residual() on a zero bitstream Originally committed as revision 22429 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	8897b247a5	Remove some unneeded fill_rectangle() for 16x16 blocks. Originally committed as revision 22124 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	69cc31832f	Move check for and call of predict_field_decoding_flag() from the mb code to the row code. This function would only be needed on a MB basis for MBAFF+FMO Originally committed as revision 21860 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	c1bb66ac19	Split setting neighboring MBs from fill_decode_caches() no speed change. Originally committed as revision 21842 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	996b099a0f	Branchless setting of MB_TYPE_8x8DCT. Not benchmarked as i failed to find a sample that uses this one. But it should be faster. Originally committed as revision 21435 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	81afcf1fae	Remove cruft. Originally committed as revision 21434 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	449d1442a6	a[b-1] -> (a-1)[b]. Helps gcc not to add seperate -1 instructions. Originally committed as revision 21432 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	7abc860323	Optimize suffix_length computation, 1 cpu cycle speedup. Originally committed as revision 21431 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	eeb1e92feb	Simplify suffix_length computation, same speed. Originally committed as revision 21430 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	c78295ad1b	Optimize level_code computation, 6cpu cycles speedup. Originally committed as revision 21428 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	8ba436171f	1 cpu cycle faster suffix_length calculation. Originally committed as revision 21425 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	1f445f5473	Move dquant check into qscale overflow check. This should be faster (couldnt meassue a difference), and its less picky on slightly out of spec dquant. Originally committed as revision 21373 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	87df989ee3	Merge multiple IS_* macro uses where possible. Originally committed as revision 21340 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	2b3649f656	Fix compilation with -O0. Originally committed as revision 21308 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago

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65 Commits (d48ebfbdea50d7f3a4e61e772b92960ff7b8d4ea)