| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Approximately 3% faster on Cortex-A8.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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Grab from the bitstream in 16-bit chunks instead of 8-bit chunks.
TODO: grab in 32-bit chunks on 64-bit systems.
Originally committed as revision 24783 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Create a custom table for VP5/6/8's renorm to avoid depending on H.264's.
Saves one instruction in the arithmetic decoder as well.
Originally committed as revision 24701 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 24684 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Always inline the arithmetic coder, except in the case of header-parsing stuff,
in which case don't inline it at all to save code size.
Originally committed as revision 24677 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 24562 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 24561 to svn://svn.ffmpeg.org/ffmpeg/trunk
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This is a lot more reliable to get cmov rather than trying to trick gcc into
generating it, useful since it's 2% faster overall.
Patch by Eli Friedman <eli.friedman at gmail>
Originally committed as revision 24471 to svn://svn.ffmpeg.org/ffmpeg/trunk
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on the huffman tree, instead of traversing the tree in a while loop.
Based on the similar optimization in libvpx's detokenize.c
10% faster at normal bitrates, and 30% faster for high-bitrate intra-only
Originally committed as revision 24468 to svn://svn.ffmpeg.org/ffmpeg/trunk
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No difference at the moment, but allows a future branchy variant
of vp56_rac_get_prob to be significantly faster
Originally committed as revision 24467 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 24466 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 24465 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 24412 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Saves nothing except a bit of memory/cache now, but will allow future
optimizations.
Originally committed as revision 24411 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 23938 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Necessary because of this GCC bug:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44474
To do this, convert some, but not all (!) of the variables in VP56RangeCoder
into local variables.
If we convert c->high into a local variable, gcc gets the stupids and refuses
to use a conditional move for the unpredictable main branch.
TODO: dispense with this bullshit and write an asm version.
Originally committed as revision 23924 to svn://svn.ffmpeg.org/ffmpeg/trunk
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This incantation causes gcc 4.3 to generate cmov on x86, a vastly better option
than a completely unpredictable branch.
Hopefully this carries over to newer versions and other CPUs with conditionals.
~5 cycles saved per call on a Core i7.
Originally committed as revision 23921 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Negate "bits" to eliminate a negate in cache refilling.
Originally committed as revision 23920 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 23915 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Patch by David Conrad <lessen42 gmail com> and myself.
Originally committed as revision 23719 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 23718 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Using macro templates allows the vp[56]_adjust functions to be
inlined instead of called through function pointers. The new
function pointers enable optimised implementations of the filters.
4% faster VP6 decoding on Cortex-A8.
Originally committed as revision 22992 to svn://svn.ffmpeg.org/ffmpeg/trunk
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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
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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
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post-processing, and add a new FF_QSCALE_TYPE_VP56 for this.
Originally committed as revision 21529 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 19348 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 18352 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 16073 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 16069 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 16068 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.' to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".
Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 12321 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 11791 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk
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closes issue 104
Originally committed as revision 10737 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 10574 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 10571 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 10568 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 9795 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 9169 to svn://svn.ffmpeg.org/ffmpeg/trunk
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This ensure get_buffer() won't be confused with an AVFrame pointer
which looks like it wasn't released.
Originally committed as revision 8124 to svn://svn.ffmpeg.org/ffmpeg/trunk
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with block coeffs coded separatly from other parts of the frame
Originally committed as revision 7484 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 7329 to svn://svn.ffmpeg.org/ffmpeg/trunk
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libavutil/common.h for platforms with no inttypes.h.
patch by Steve Lhomme, slhomme divxcorp com
Originally committed as revision 6790 to svn://svn.ffmpeg.org/ffmpeg/trunk
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and fix GPL/LGPL version mismatches.
Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
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