[Libav-user] ffmpeg configure for ios - using asm options causes MPx (mp1, mp2, mp3) codecs sound problems

Mert Gedik gedikmert89 at gmail.com
Sat Apr 20 14:47:08 CEST 2013

I think, using --disable-neon option makes performance low, doesn't it?

As I said I am working on slow devices such as iPad 1 and iPhone 3GS, and I
need anything that improves performance...

The sound problem happens on device only when configure ffmpeg with
--enable-asm optimization parameter, no sound problem exists on simulator
with same configuration...

On Sat, Apr 20, 2013 at 2:44 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:

> Mert Gedik <gedikmert89 at ...> writes:
> > But when I configure with --enable-asm, the audio stream
> > which using mpx(mp1,mp2,mp) codec sounds squeaky.
> Did you test --disable-thumb and --disable-neon?
> Please try to find the function that is
> responsible for the problem.
> Carl Eugen
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> Libav-user mailing list
> Libav-user at ffmpeg.org
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