[Libav-user] Efficient AAC decoding on ARM with FFmpeg 1.1.x

Carl Eugen Hoyos cehoyos at ag.or.at
Tue Apr 9 23:41:43 CEST 2013

Reuben Scratton <reuben.scratton at ...> writes:

> I maintain a video player app on Android and recently had 
> occasion to upgrade it's FFmpeg from 0.8.6 to 1.1.3.

Please update to 1.2 which is binary compatible and contains 
many bug fixes and features not present in 1.1.

> It seems that the 1.1 AAC decoder only outputs samples as 
> AV_SAMPLE_FMT_FLTP. I therefore need to convert these to 
> AV_SAMPLE_FMT_S16 before they can be played

Please use either libswresample or the aconvert audio 
filter (which uses libswresample) for the conversion.

Carl Eugen

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