idct_put for compilers/architectures that can not align stack variables that much.
This is also consistent with similar code in eatgq.c
Originally committed as revision 18927 to svn://svn.ffmpeg.org/ffmpeg/trunk
Might avoid crashes in unlikely cases, but mostly avoids ugly artefacts
for partial frames.
Originally committed as revision 18925 to svn://svn.ffmpeg.org/ffmpeg/trunk
for idct_put on architectures/compilers that have problems aligning on the stack.
Originally committed as revision 18924 to svn://svn.ffmpeg.org/ffmpeg/trunk
This ensures that the MMX loop filter is always bitexact with the C version.
Patch by Haruhiko Yamagata <h.yamagata _a_ nifty com>
Originally committed as revision 18923 to svn://svn.ffmpeg.org/ffmpeg/trunk
changeing calls to sub_left_prediction such that
the source frame data pointers are no longer offset to skip the initial
elements. This keeps them properly aligned for the subsequent call to diff_bytes.
Changes encoding offset to compensate.
Mailing list thread:
https://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-May/069952.html
Originally committed as revision 18919 to svn://svn.ffmpeg.org/ffmpeg/trunk
in the source data array to start encoding.
Change all calls to pass zero for this new argument for equivalent behavior.
This is a restructure to support a forthcoming bug fix.
Originally committed as revision 18918 to svn://svn.ffmpeg.org/ffmpeg/trunk
MLP DSP functions x86-optimized.
12.59% overall speedup in x86_32
9.98% overall speedup in x86_64
compared to gcc 4.3.3
It breaks on x86_64 with PIC because the MANGLE macro appends (%%rip), which
is not wanted for labels.
Originally committed as revision 18904 to svn://svn.ffmpeg.org/ffmpeg/trunk
12.59% overall speedup in x86_32
9.98% overall speedup in x86_64
compared to gcc 4.3.3
Originally committed as revision 18903 to svn://svn.ffmpeg.org/ffmpeg/trunk
it is aligned as necessary for DSPContext's idct_put.
Just aligning it on the stack would have been possible but less reliable
and without any real benefit.
Originally committed as revision 18896 to svn://svn.ffmpeg.org/ffmpeg/trunk
Patch by Martin Storsjö: martin (remove that) at martin (oh and this too) st
Originally committed as revision 18880 to svn://svn.ffmpeg.org/ffmpeg/trunk
Now the sign of audio samples in ffvorbis output is the same as in original
uncompressed audio file and this also allows the use of tiny_psnr to compare
ffvorbis with libvorbis/tremor.
Originally committed as revision 18878 to svn://svn.ffmpeg.org/ffmpeg/trunk
Rename ff_mpeg1_decode_block_intra to mpeg1_decode_block_intra and
make it static. Add ff_mpeg1_decode_block_intra as plain extern
function calling mpeg1_decode_block_intra.
Originally committed as revision 18859 to svn://svn.ffmpeg.org/ffmpeg/trunk
Scaling (i)MDCT output has no runtime overhead and can be used to improve
performance of audio codecs. All the changes are only needed in
'ff_mdct_init' function and slow down initialization a bit.
Originally committed as revision 18855 to svn://svn.ffmpeg.org/ffmpeg/trunk
Vitor Sessak
Reimar Döffinger
Haruhiko Yamagata
Michael Niedermayer
Jeff Downs
David Conrad
Baptiste Coudurier
Ramiro Polla
Diego Biurrun
Justin Ruggles
Måns Rullgård
Martin Storsjö
Siarhei Siamashka
Jason Garrett-Glaser
Alex Converse
Benjamin Larsson
Kostya Shishkov