[Ffmpeg-devel] iWMMXt support

[Tim Chick]

Hi List,

In libavcodec/armv4l/dsputil_iwmmxt.c

The function:

int mm_support(void)
{
    return 0; /* TODO, implement proper detection */
}

Only ever returns 0. This means the iwmmxt code never gets installed.

Perhaps it should read:

int mm_support(void)
{
    return MM_IWMMXT; /* TODO, implement proper detection */
}

This file is only compiled if HAVE_IWMMXT is defined, so it would seem 
to make sense to use the IWMMXT features when asked?

I had a look into checking for IWMMXT support, and could not see any 
sane way of doing it, especially as it needs support from the OS. 
Anyone got any ideas?

Thanks,
Tim