Commit Graph

11 Commits

Author SHA1 Message Date
Kostya Shishkov
53b04467ae Warn when WVC1 cannot be decoded
Originally committed as revision 20201 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-11 05:36:59 +00:00
Andrew Dennison
95ce961d88 Since some junk may be or may be not present before actual VC-1 extradata,
search for real extradata start instead of always skipping one byte.

Patch by Andrew Dennison gmailify(${name}d, lists)
Thread: [PATCH] Fix VC1 "Incomplete extradata" for mkv files generated by eac3to

Originally committed as revision 20178 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-06 15:30:08 +00:00
Reimar Döffinger
c05df6895f Use ff_msmpeg4_decode_init to initialize ff_msmp4_mb_i_vlc since static
VLC tables should only be initialized from one place.
This initializes/calculates more VLC tables than necessary for VC1 decoding,
but this is only done once and only a small overhead in time and space (maybe
30 kB) it seems not worth adding a separate function.

Originally committed as revision 20010 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-24 10:49:47 +00:00
Reimar Döffinger
2ba8301769 Mark all pix_fmts and supported_framerates compound literals as const.
Makes no difference for gcc but at least icc can put them in .rodata then.

Originally committed as revision 19789 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-06 16:09:21 +00:00
Diego Biurrun
700363afe7 Only enable WMV3 decoder when it has been turned on in the build system.
Originally committed as revision 19534 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-29 11:31:52 +00:00
Diego Biurrun
e0f58e39c4 Do not check for both CONFIG_VC1_VDPAU_DECODER and CONFIG_WMV3_VDPAU_DECODER,
the former depends upon the latter.

Originally committed as revision 19532 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-29 09:54:00 +00:00
Kostya Shishkov
74a30595b2 Edge emulation should be used in B-frame MC in mspel mode with
mv_x < 1 or mv_y < 1.

Originally committed as revision 19255 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-23 07:41:38 +00:00
Jason Garrett-Glaser
351653a51e VC-1/WMV: Remove redundant ff_init_block_index() calls.
These are only supposed to be called once per row, not once per macroblock.
~1.5% faster according to oprofile.

Originally committed as revision 19213 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-17 05:54:42 +00:00
Jason Garrett-Glaser
010f98f96a VC-1/WMV3 decoding: don't clear blocks unless they're actually used.
~8% faster VC-1 decoding.
Possible future optimization: clear blocks after use instead of before, and for
DC-only blocks, only clear the DC coefficient.

Originally committed as revision 19205 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-16 09:09:03 +00:00
Jason Garrett-Glaser
4f717c69ed idct_dc for VC-1/WMV3 decoder; ~11% faster decoding overall.
Includes mmx2 asm for the various functions.
Note that the actual idct still does not have an x86 SIMD implemtation.
For wmv3 files using regular idct, the decoder just falls back to simple_idct,
since simple_idct_dc doesn't exist (yet).

Originally committed as revision 19204 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-16 09:00:55 +00:00
Diego Biurrun
b761659bef Split decoder-specific code off from vc1.c into vc1dec.c and keep code
shared between decoder and parser in vc1.c.

Originally committed as revision 19152 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-11 09:31:31 +00:00