[FFmpeg-cvslog] r26033 - trunk/libavcodec/ac3enc.c

Justin Ruggles justin.ruggles
Tue Dec 21 20:39:29 CET 2010

On 12/20/2010 05:44 PM, Justin Ruggles wrote:

> On 12/20/2010 05:33 PM, Ronald S. Bultje wrote:
>> Hi,
>> On Mon, Dec 20, 2010 at 5:30 PM, Justin Ruggles
>> <justin.ruggles at gmail.com> wrote:
>>> All of the configurations which failed after this revision are x86.
>> Is it possible that one of the optimized functions on these platforms,
>> which isn't tested otherwise, is causing this? E.g. consider that
>> float-to-int routines require different float values depending on
>> optimization level...
> I tried all x86 versions of sad[0] (C, MMX, MMX2, SSE2) and they passed
> on my system, so I don't think there is anything fundamentally wrong
> with how ac3enc is using sad[0].

I was able to duplicate the test failures using OpenBSD 4.8 i386 in
VirtualBox.  Now I'm trying to see if I can track down the specific problem.


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