[FFmpeg-devel] MPEG decoding on the iPhone is buggy

Måns Rullgård mans
Thu Oct 1 18:43:06 CEST 2009

Yoni Levy <yonilevy at gmail.com> writes:

> 2009/10/1 Ronald S. Bultje <rsbultje at gmail.com>
>> The rule is to use plain vanilla SVN.
>> I recommend to turn off optimizations and asm while compiling ffmpeg,
>> so as to turn off any of the code produced by ffmpeg4iphone. then, try
>> to reproduce it using plain ffmpeg in a terminal on your iphone.
>> Yes this is complicated, but right now you're essentially asking us to
>> look into a bug that is likely produced by a patch that didn't even
>> originate from us, you're unlikely to findan easy solution. :-).
> Hi Ronald,
> I've checked out the latest SVN build and tried to compile with this config
> line (notice arm optimizations are now off):
> ./configure --enable-cross-compile --target-os=darwin
> [...]
> --disable-armv6 --disable-debug --disable-stripping --arch=arm

You still have generic ARM optimisations enabled.  Pass --arch=c for a
pure C build.

M?ns Rullg?rd
mans at mansr.com

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