[FFmpeg-devel] [HOWTO] Building FFmpeg for iPhone

Måns Rullgård mans
Sat Oct 3 18:12:27 CEST 2009

Mahmut Akcay <mahakcay at gmail.com> writes:

>> Mahmut Akcay <mahakcay at gmail.com> writes:
>> > I've just tried the build instructions for iphone. It's working fine.
>> >
>> > There was a discussion about problems with decoding some codec on iphone
>> > earlier this week. It was due to the patch from ffmpeg4iphone.
>> > It seems that gas-preprocessor has the same issue. I've tried to
>> > play a flv file and only got green screen with moving
>> > shadows. However, it's playing well when compiled with
>> > "--arch=cc" flag.
>> Can you provide a sample file and ffmpeg command line to reproduce the
>> problem?  Is your iPhone a 3GS or something older?
> You can use the following sample:
> http://klaus.geekserver.net/ming-video/test.flv
> I'm not using ffmpeg command line for test, however, you should be
> able to reproduce it by converting the video into bmp files.  I've
> tested it on both 3GS and 3G with iPhone OS 3.1

Does it work with the recommended configure line for 3GS?  What if you
use --cpu=arm926ej-s?

M?ns Rullg?rd
mans at mansr.com

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