FFmpeg

Commit Graph

Author	SHA1	Message	Date
David Conrad	f50dafa8fc	vp3: avoid buffer overread in coeff decode I couldn't measure it to be slower for normal interframe videos. For the worst case, high-bitrate intra-only videos, it can be 0.7% slower. Originally committed as revision 22416 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	d63a718764	vp3: correctly clip vp3_draw_horiz_band call Originally committed as revision 22377 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	ff65969fd8	vp3: Set pict_type Originally committed as revision 22361 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	7a4e8b5913	vp3: Allocate a dummy reference frame if we have no keyframe Originally committed as revision 22360 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	0c9afacbf5	vp3: use FF_BUFFER_TYPE_COPY Originally committed as revision 22359 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	e72d2d1221	vp3: Don't leak buffers on errors Originally committed as revision 22358 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	739b5090af	vp3: Simplify buffer management Originally committed as revision 22357 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	01f9640b21	vp3: be less spammy on broken files Originally committed as revision 22356 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	84dc2d8afa	Remove DECLARE_ALIGNED_{8,16} macros These macros are redundant. All uses are replaced with the generic DECLARE_ALIGNED macro instead. Originally committed as revision 22233 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	e2720b6b1e	Really fix 2.95 Originally committed as revision 22204 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	0448ef7788	Maybe fix gcc 2.95 Originally committed as revision 22203 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	c72625f299	Delay translating DCT tokens into coefficients until immediately before IDCT This is generally around 12% faster than the prior method of creating a linked list for each block as tokens are read, but can be anywhere from 8% to 28% faster depending on file and CPU. Originally committed as revision 22190 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	7a095ea6fb	Do MC and IDCT in coding (hilbert) order This increases the slice size to 64 pixels, due to having to decode an entire chroma superblock row per slice. This can be up to 6% slower depending on clip and CPU, but is necessary for future optimizations that gain significantly more than was lost. Originally committed as revision 22189 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	35c28d23cb	Explictly separate decoding whether fragments are coded by plane Originally committed as revision 22188 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Carl Eugen Hoyos	770128c448	Remove declaration of unused variables. Originally committed as revision 22102 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	6cb35b45e6	Simplify determing whether fragments are coded No measurable speed difference Originally committed as revision 21931 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	a89264761f	Handle Theora's continued runs in superblock coding. This doesn't really matter yet since 4:2:0 1080p has only 3060 superblocks, but larger resolutions or 4:4:4 1080p could hit this case. Originally committed as revision 21930 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	855c720c86	Decode fully coded superblocks in the same manner as partial superblocks and qpi No speed difference, but it will simplify the special 4129 case. Originally committed as revision 21929 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	ecb51b25bb	Make the special 4129 case for long-run bit strings a #define and explain it Originally committed as revision 21928 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	33dbc1b7ca	Use memset to set the runs partially coded superblocks Much faster for long runs (e.g. nearly uncoded frames), slightly faster for the general case. Originally committed as revision 21927 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	40d1122752	Use LOCAL_ALIGNED macro for local arrays Originally committed as revision 21866 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	161e8cf42c	Move CODEC_FLAG_GRAY check to outer loop Originally committed as revision 21805 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	7c2e31d1f0	Move branch based on custom mode outside the loop Originally committed as revision 21804 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	eb691ef219	Directly check whether a fragment is coded for 4MV mode instead of iterating through the entire coded fragment list. Originally committed as revision 21803 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	15675ce609	Eliminate fragment -> macroblock mapping array Originally committed as revision 21802 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	ea67614457	Eliminate macroblock -> fragment mapping array Originally committed as revision 21801 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	19cd517dbf	Eliminate superblock <-> macroblock mapping array Originally committed as revision 21800 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	735acf567c	Don't pre-calculate first_pixel 3.6% faster on Elephants_Dream_HD-q7-aq7.ogg on my penryn Originally committed as revision 21781 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	a8de390163	Implement CODEC_CAP_DRAW_HORIZ_BAND for VP3 decoder Originally committed as revision 21780 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	621f9a40b1	Cosmetics: reindent Originally committed as revision 21779 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	256c0662ef	Do loop filter per-row rather than per-frame 3% faster on Elephants_Dream_HD-q7-aq7.ogg on my penryn Originally committed as revision 21778 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	fe3135564a	Move apply_loop_filter above render_slice, it'll be used by the latter soon Originally committed as revision 21777 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	ea3c2d5393	Export Theora colorspace info if present Originally committed as revision 21776 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	337f5c6e30	Theora 3.4 doesn't exist; these fields were misunderstandings of the spec Originally committed as revision 21775 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	45c3c92576	Remove unused code that's moved elsewhere Originally committed as revision 21774 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	c67278098d	Move array specifiers outside DECLARE_ALIGNED() invocations Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Mike Melanson	da8af9388c	Cosmetic: indent after last change. Originally committed as revision 20896 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Mike Melanson	e6e32bdc5f	Optimize unpack_vectors() by not shuffling around redundant vectors. Inspired by guidance from Dark Shikari. On a Core 2 Duo 2.0 GHz, this change decodes the 10-minute Big Buck Bunny 1080p short about 2 seconds faster. Originally committed as revision 20895 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Carl Eugen Hoyos	08f1960588	Cosmetics: Fix indentation after r20751. Originally committed as revision 20752 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Jason Garrett-Glaser	bfb5a8cec6	Simplified deblocking checks. Patch by Dark Shikari Originally committed as revision 20751 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Jason Garrett-Glaser	50ba3fd713	Faster checks in reverse_dc_prediction. Patch by Dark Shikari Originally committed as revision 20750 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Jason Garrett-Glaser	c11cb37520	Check transform==15 first, since it's more common than 13. Patch by Dark Shikari Originally committed as revision 20749 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Carl Eugen Hoyos	306a61b33e	Revert r20747: It mixed functional and cosmetical changes. Originally committed as revision 20748 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Jason Garrett-Glaser	63c0b3d920	Various VP3 optimizations. Faster checks in reverse_dc_prediction. Simplified deblocking checks. Check transform==15 first, since it's more common than 13. Originally committed as revision 20747 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Mike Melanson	9d8bb0318a	Small refactoring: Instead of 4 loops for decoding AC coefficients based on their grouping, create one loop that indexes into a table of AC VLC tables. There is also a small optimization here: Do not call unpack_vlcs() if there are no fragments in the list with outstanding coefficients. My profiling indicates that this can save upwards of 1 million dezicycles per frame throughout the course of unpack_dct_coeffs(). Originally committed as revision 20699 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Mike Melanson	098523eb28	Use a list to track which fragments coded in this frame still have outstanding coefficients yet to be decoded from the bitstream. Once a fragment reaches end-of-block, remove it from this new list. This change makes the VP3/Theora entropy decode process dramatically faster due to not having to iterate incessantly over fragments which have already been fully decoded. Originally committed as revision 20698 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Mike Melanson	0efbd068e7	Make sure that all memory allocations succeed. Based on 28_theora_malloc_checks.patch from the Google Chrome team. Originally committed as revision 20008 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Google Chrome	310afddfe0	Fix >= vs > check of coded_fragment_list_index. 22_fix_theora_frag_fencepost.patch by chrome Originally committed as revision 19995 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Google Chrome	fa6f27517b	Fix init_get_bits() buffer size. 18_fix_theora_header_bit_len.patch by chrome Originally committed as revision 19993 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Mike Melanson	428984b041	Another micro-optimization for unpack_vlcs(): Eliminate a possible branch and save around 45k-55k dezicycles per function run. Originally committed as revision 19974 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago

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225 Commits (9a894c48ae5dcb8cfc247d9085b35bc0da848421)