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210 Commits

Author SHA1 Message Date
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
 2010-02-21 00:11:01 +00:00
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
 2010-02-21 00:10:58 +00:00
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
 2010-02-21 00:10:54 +00:00
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
 2010-02-21 00:10:51 +00:00
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
 2010-02-21 00:10:47 +00:00
Måns Rullgård
40d1122752 Use LOCAL_ALIGNED macro for local arrays 
Originally committed as revision 21866 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-17 20:36:20 +00:00
David Conrad
161e8cf42c Move CODEC_FLAG_GRAY check to outer loop 
Originally committed as revision 21805 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-13 18:59:25 +00:00
David Conrad
7c2e31d1f0 Move branch based on custom mode outside the loop 
Originally committed as revision 21804 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-13 18:59:21 +00:00
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
 2010-02-13 18:55:27 +00:00
David Conrad
15675ce609 Eliminate fragment -> macroblock mapping array 
Originally committed as revision 21802 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-13 18:55:24 +00:00
David Conrad
ea67614457 Eliminate macroblock -> fragment mapping array 
Originally committed as revision 21801 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-13 18:55:21 +00:00
David Conrad
19cd517dbf Eliminate superblock <-> macroblock mapping array 
Originally committed as revision 21800 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-13 18:55:17 +00:00
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
 2010-02-12 22:01:38 +00:00
David Conrad
a8de390163 Implement CODEC_CAP_DRAW_HORIZ_BAND for VP3 decoder 
Originally committed as revision 21780 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-12 22:01:35 +00:00
David Conrad
621f9a40b1 Cosmetics: reindent 
Originally committed as revision 21779 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-12 22:01:32 +00:00
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
 2010-02-12 22:01:29 +00:00
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
 2010-02-12 22:01:25 +00:00
David Conrad
ea3c2d5393 Export Theora colorspace info if present 
Originally committed as revision 21776 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-12 22:01:22 +00:00
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
 2010-02-12 22:01:18 +00:00
David Conrad
45c3c92576 Remove unused code that's moved elsewhere 
Originally committed as revision 21774 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-12 22:00:29 +00:00
Måns Rullgård
c67278098d Move array specifiers outside DECLARE_ALIGNED() invocations 
Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-22 03:25:11 +00:00
Mike Melanson
da8af9388c Cosmetic: indent after last change. 
Originally committed as revision 20896 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-12-19 07:34:11 +00:00
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
 2009-12-19 07:33:10 +00:00
Carl Eugen Hoyos
08f1960588 Cosmetics: Fix indentation after r20751. 
Originally committed as revision 20752 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-12-06 15:39:25 +00:00
Jason Garrett-Glaser
bfb5a8cec6 Simplified deblocking checks. 
Patch by Dark Shikari

Originally committed as revision 20751 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-12-06 15:38:05 +00:00
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
 2009-12-06 15:33:48 +00:00
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
 2009-12-06 15:31:58 +00:00
Carl Eugen Hoyos
306a61b33e Revert r20747: It mixed functional and cosmetical changes. 
Originally committed as revision 20748 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-12-06 15:30:53 +00:00
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
 2009-12-06 12:48:09 +00:00
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
 2009-12-02 04:06:27 +00:00
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
 2009-12-02 02:30:15 +00:00
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
 2009-09-24 06:33:16 +00:00
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
 2009-09-23 12:42:12 +00:00
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
 2009-09-23 12:27:10 +00:00
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
 2009-09-23 05:38:12 +00:00
Mike Melanson
138fe83215 Perform the DC prediction reversal immediately after decoding all of 
the DC coefficients. This has a greater probability of leveraging the
coefficients while they are still cached.

When testing with the Big Buck Bunny 1080p video, I consistently saw
improvements of 500k-600k dezicycles per run (through
reverse_dc_prediction()) thanks to this move.

Originally committed as revision 19966 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-22 15:58:08 +00:00
Mike Melanson
ee3d7f5852 Modify unpack_vlcs() so that there are fewer dereferences through the 
main (heavily iterated) loop.

Originally committed as revision 19934 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-21 01:37:50 +00:00
Reimar Döffinger
b8791583e7 compatible_frame array can be static const, too. 
Originally committed as revision 19779 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-06 08:27:23 +00:00
Reimar Döffinger
bb99108775 Make vp3 arrays static const where possible. 
Originally committed as revision 19771 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-05 17:28:20 +00:00
Måns Rullgård
3aab27b459 Remove useless #include <unistd.h> from many files 
Originally committed as revision 19499 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-22 23:37:53 +00:00
Reimar Döffinger
c79c960ade Remove useless ret variable added in last revision again. 
Originally committed as revision 19357 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-06 10:28:58 +00:00
Reimar Döffinger
7cda815044 100l, theora_decode_init must pass on errors from vp3_decode_init 
Originally committed as revision 19356 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-06 09:35:00 +00:00
Reimar Döffinger
c4b7b8bf9c Make decode_init fail if the huffman tables are invalid and thus init_vlc fails. 
Otherwise this will crash during decoding because the vlc tables are NULL.
Partially fixes ogv/smclock.ogv.1.101.ogv from issue 1240.

Originally committed as revision 19355 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-06 09:22:39 +00:00
Reimar Döffinger
e13cca4b14 Ensure that the filter limit values do not exceed the maximum allowed value of 127. 
Originally committed as revision 19351 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-05 18:27:39 +00:00
Reimar Döffinger
7fa5f9990b Extend init_loop_filter to work for filter limit values up to 127 instead 
of only up to 64. 127 is the maximum value allowed by the theora specification.

Originally committed as revision 19350 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-05 18:25:58 +00:00
Baptiste Coudurier
7f57905d55 vp3 and theora decoders use get_buffer, set CODEC_CAP_DR1 
Originally committed as revision 19107 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-05 08:44:26 +00:00
David Conrad
f2264fa531 Support block-level quantization in Theora 
Originally committed as revision 18986 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-29 21:43:22 +00:00
David Conrad
ef516f7377 Move ALIGN macro to libavutil/common.h and use it in various places 
Originally committed as revision 18898 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-22 21:32:13 +00:00
David Conrad
0a8dedc9e1 Use skip_bits_long() for large skips 
This fixes ogg/theora on ARM (more generally the A32 bitstream reader)

Originally committed as revision 18819 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-14 00:02:07 +00:00
David Conrad
580a7465fb Add a chroma_sample_location field to define positioning of chroma samples 
Originally committed as revision 18795 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-11 04:34:23 +00:00