This should fix a segfault, also it might be faster on systems where the
+52 wasnt free.
Originally committed as revision 21406 to svn://svn.ffmpeg.org/ffmpeg/trunk
loop filter. This removes one obstacle of getting ff_h264_filter_mb_fast()
bitexact. code is maybe 0.1% faster
Originally committed as revision 21280 to svn://svn.ffmpeg.org/ffmpeg/trunk
Run loop filter per row instead of per MB, this also should make it
much easier to switch to per frame filtering and also doing so in a
seperate thread in the future if some volunteer wants to try.
Overall decoding speedup of 1.7% (single thread on pentium dual / cathedral sample)
This change also allows some optimizations to be tried that would not have
been possible before.
Originally committed as revision 21270 to svn://svn.ffmpeg.org/ffmpeg/trunk
Seems to speed the code up a little...
The placement of many generic functions between h264.c and h264.h is still open
Currently they are a little randomly placed between them.
Originally committed as revision 21178 to svn://svn.ffmpeg.org/ffmpeg/trunk
called once per MB in worst case and doesnt seem to benefit from static inline.
Actually the code might be a hair faster now (0.1% according to my benchmark but
this could be random noise)
Originally committed as revision 21173 to svn://svn.ffmpeg.org/ffmpeg/trunk
no speedloss meassured, also its really not touching anything that is speed relevant.
Originally committed as revision 21169 to svn://svn.ffmpeg.org/ffmpeg/trunk
No speedloss meassured (its slightly faster here but that may be random fluctuations)
Originally committed as revision 21165 to svn://svn.ffmpeg.org/ffmpeg/trunk
functions called more than per mb are moved into the header, scan8 is also
as it must be known at compiletime.
The code after this patch duplicates h264data.h, this has been done to minimize
the changes in this step and allow more fine grained benchmarking.
Speedwise this is 1% faster on my pentium dual core with diegos cursed cathedral
sample.
Originally committed as revision 21157 to svn://svn.ffmpeg.org/ffmpeg/trunk
decoder which allows their usage without checking profile_idc.
Patch by Laurent Aimar (fenrir (AT) videolan org)
Originally committed as revision 21107 to svn://svn.ffmpeg.org/ffmpeg/trunk
Files with invalid VUI are now rejected like
other invalid SPS are.
Fixes issue1231.
Originally committed as revision 19335 to svn://svn.ffmpeg.org/ffmpeg/trunk
Before, the decoder could interpret a corrupt frame
as a NAL_DPA and NAL_DPC, and then start decoding
even if decode_slice_header() returned an error.
This frequently caused crashes.
Fixes issue1228, issue1229, and partially issue1238.
Originally committed as revision 19328 to svn://svn.ffmpeg.org/ffmpeg/trunk
First, reverted one was r19239.
Patch by Haruhiko Yamagata, h D yamagata A nifty D com
Originally committed as revision 19258 to svn://svn.ffmpeg.org/ffmpeg/trunk
Alexander Strange
Michael Niedermayer
Laurent Aimar
David Conrad
Laurent Aimar
Andreas Öman
Reimar Döffinger
Ronald S. Bultje
Mike Scheutzow
Carl Eugen Hoyos
Ramiro Polla
Måns Rullgård
Haruhiko Yamagata