[Libav-user] what is "fltp" for audio when using ffmpeg

Jean-Yves Avenard jyavenard at gmail.com
Mon Aug 12 05:36:56 CEST 2013

On 31 July 2013 17:43, Soho Soho123 <soho123.2012 at gmail.com> wrote:
> Hi All,
> I got the problem when I try to capture audio + video from USB web cam by
> ffmepg.
> the problem is audio can not play when I use VLC to play the stream that
> ffserver output.
> the question is :
> I use ffmepg the encode audio to "wmav1" but, I can see the log that is
> output by audio filter.
> the audio format is "fltp".
> What is "fltp"? Does anyone have idea?

32 bits floats, planar (as opposed in interleaved)

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