ffmpeg

Commit Graph

Author	SHA1	Message	Date
Måns Rullgård	cc078b5d8f	PPC: check for x-form asm constraint support Originally committed as revision 18606 to svn://svn.ffmpeg.org/ffmpeg/trunk	2009-04-18 13:57:30 +00:00
Måns Rullgård	9f5ff83f2a	PPC asm for AV_RL*() PPC is normally big endian but has special little endian load/store instructions. Using these avoids a separate byteswap. This makes the vorbis decoder about 5% faster. Not much else uses little-endian read/write extensively. GCC generates horrible PPC code for the default AV_[RW]B64 (which uses a packed struct), so we override it with a plain pointer cast. Originally committed as revision 18602 to svn://svn.ffmpeg.org/ffmpeg/trunk	2009-04-18 00:00:31 +00:00

Author

SHA1

Message

Date

Måns Rullgård

cc078b5d8f

PPC: check for x-form asm constraint support

Originally committed as revision 18606 to svn://svn.ffmpeg.org/ffmpeg/trunk

2009-04-18 13:57:30 +00:00

Måns Rullgård

9f5ff83f2a

PPC asm for AV_RL*()

PPC is normally big endian but has special little endian load/store
instructions.  Using these avoids a separate byteswap.  This makes the
vorbis decoder about 5% faster.  Not much else uses little-endian
read/write extensively.

GCC generates horrible PPC code for the default AV_[RW]B64 (which uses
a packed struct), so we override it with a plain pointer cast.

Originally committed as revision 18602 to svn://svn.ffmpeg.org/ffmpeg/trunk

2009-04-18 00:00:31 +00:00

2 Commits