search for: flac__lpc_restore_signal_asm

Displaying 2 results from an estimated 2 matches for "flac__lpc_restore_signal_asm".

2004 Sep 10
4
Altivec Optimizations
Hi, I have been playing with Altivec, and I rewrote a couple of the routines in assembly. Looking at the archives, I noticed that there may already be some effort on this. Anyways... Right now, I have two routines working. They need to be cleaned up, made relocatable, and documented; otherwise, they seem to work fairly well. I see an overall ~27% speed improvement when encoding with the
2004 Sep 10
0
Altivec Optimizations
...ady come up with. As for alignment, there are routines in memory.c to allocate aligned memory at 32-byte boundaries. It is turned on with a #define FLAC__ALIGN_MALLOC_DATA. Currently this is only turned on in configure.in for x86 cpu's but you can easily do it for powerpc. An asm version of FLAC__lpc_restore_signal_asm should also give a pretty good bang for the buck on the decoding side. Josh __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com