[Ffmpeg-devel] AMR encoding on Linux

Benjamin Larsson banan
Thu May 11 04:07:51 CEST 2006

Stephen Tonna wrote:

> I work on the QuickTime team at Apple and it was brought to my 
> attention that there might be an issue with a bad AMR bit stream 
> generated by FFMPEG on linux. Specifically, the bit stream returns a 
> value of 10 frames per sample when the value should be 1.
> This is causing the file to not playback in QuickTime on Mac OS X or 
> Windows.
> Has anyone else seen this?
> Thanks in advance,
> Stephen Tonna
> QuickTime, Apple Computer

Does this depend on the amr codecdata or the 3gp container ? And as
usual please provide a sample file that we can examine.

Benjamin Larsson

"incorrect information" is an oxymoron. Information is, by definition, factual, correct.

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