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

Murat Sudan murat.sudan at argela.com.tr
Thu Apr 25 10:30:42 CEST 2013

> Well, first of all: Mans Rullgard is the author of gas-preprocessor and
> deserves all the credit. Secondly the ffmeg version of gas-preprocesso is
> manually copied from Mans repo github.com/mansr/gas-preprocessor to
> ffmpeg's repo github.com/yuvi/gas-preprocessor thus it may fall behind. In
> fact, if you have problems with arm optimization i would recommend to check
> Mans repo from time to time just to be sure there are no new updates that
> hasn't been brought into ffmpeg.

Thanks Julian, Carl and Lars,

The problem is gone with the configure options that Lars wrote with
the latest gas-processor which is same with mansr's one.

Now, I can use asm optimizations without distortion on sound when
decoding any mpx codec.

- MG
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