[FFmpeg-user] Always merge audio all streams?

[Francois Visagie]

> -----Original Message-----
> From: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of
> Moritz Barsnick
> Sent: 02 February 2016 11:25
> To: FFmpeg user discussions
> Subject: Re: [FFmpeg-user] Always merge audio all streams?
> 
> On Tue, Feb 02, 2016 at 10:29:54 +0300, Francois Visagie wrote:
> > > I've tried to use the amerge filter but it requires the number of
> > > audio streams provided manually...
> 
> > Have you tried something like '-af aformat=channel_layouts=mono'
> > (guessing, documentation does not mention mono)?
> 
> That merges channels of a stream, not streams.
> 
> BTW, see "ffmpeg -layouts" for supported channel layouts. That does
> mention "mono".
> 
> > Or '-ac 1'?
> 
> Same here, this forces the merging of channels, not of streams like "amerge"
> does.
> 
> That said, I don't think that what Robert desires can be done right now with
> standard ffmpeg means.

Sorry for misreading the request, and thanks for setting things straight.

> 
> Moritz
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