patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30
Originally committed as revision 10660 to svn://svn.ffmpeg.org/ffmpeg/trunk
patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30
Originally committed as revision 10659 to svn://svn.ffmpeg.org/ffmpeg/trunk
PAFF support disabled until implementation complete.
patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30
Originally committed as revision 10658 to svn://svn.ffmpeg.org/ffmpeg/trunk
in a library.
Should not change anything for PPC, the autodetection is currently pointless due
to other code being compiled with -maltivec as well (and detection for OSX and
AmigaOS remains in place).
SPARC binaries built with VIS support can now only run on systems with VIS.
Originally committed as revision 10648 to svn://svn.ffmpeg.org/ffmpeg/trunk
patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30
Originally committed as revision 10646 to svn://svn.ffmpeg.org/ffmpeg/trunk
patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30
Originally committed as revision 10645 to svn://svn.ffmpeg.org/ffmpeg/trunk
optimizations and no general PPC optimizations. Instead make the file be
compiled conditional to HAVE_ALTIVEC.
Originally committed as revision 10637 to svn://svn.ffmpeg.org/ffmpeg/trunk
3x faster decode_subframe_fixed().
overall flac decoding: 10% faster if file was encoded with fixed predictors.
Originally committed as revision 10626 to svn://svn.ffmpeg.org/ffmpeg/trunk
1.5x faster encode_residual_fixed().
overall flac encoding: 3% faster at compression_levels 0-2.
Originally committed as revision 10625 to svn://svn.ffmpeg.org/ffmpeg/trunk
4x faster order 2, 3.5x order 3, 3x order 4.
overall flac encoding: 35% faster at compression_levels 0-2, no effect at higher levels.
Originally committed as revision 10624 to svn://svn.ffmpeg.org/ffmpeg/trunk
4x faster than c (somehow, even though doubles only allow 2x simd).
overal flac encoding: 15-50% faster on core2, 4-11% on k8, 3-13% on p4.
Originally committed as revision 10621 to svn://svn.ffmpeg.org/ffmpeg/trunk
overall flac encoding: 4-15% faster.
output is not identical to the previous algorithm due to occasional rounding
errors, but the differece is less than .0005% bitrate.
Originally committed as revision 10612 to svn://svn.ffmpeg.org/ffmpeg/trunk
overall flac encoding: 15-50% faster on core2, 8-30% on k8, 2-20% on p4 (depending on compression_level)
Originally committed as revision 10606 to svn://svn.ffmpeg.org/ffmpeg/trunk
patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30
Originally committed as revision 10592 to svn://svn.ffmpeg.org/ffmpeg/trunk
50%/67%/43% faster on core2/k8/p4, making flac decoding overall 24%/25%/11% faster
Originally committed as revision 10586 to svn://svn.ffmpeg.org/ffmpeg/trunk
37%/45%/90% faster on core2/k8/p4, making flac encoding overall 15%/17%/40% faster at compression_level>=8 (less at low levels).
Originally committed as revision 10585 to svn://svn.ffmpeg.org/ffmpeg/trunk
