[MPlayer-dev-eng] [PATCH] [TEST AFILTER] Encode ac3 at runtime using lavc

[Ulion]

2007/11/20, Diego Biurrun <diego at biurrun.de>:
> On Tue, Nov 20, 2007 at 07:23:46PM +0800, Ulion wrote:
> > 2007/11/20, Diego Biurrun <diego at biurrun.de>:
> > > >
> > > > Sorry for my mistake in Makefile, fix again.
> > > >
> > > > --- DOCS/man/en/mplayer.1     (revision 25106)
> > > > +++ DOCS/man/en/mplayer.1     (working copy)
> > > > @@ -4695,6 +4695,30 @@
> > > > +.B lavcac3enc[=tospdif[:bitrate[:minchn]]]
> > > > +Encode multi-channel audio to AC-3 at runtime using libavcodec.
> > > > +Supports input 16-bit little-endian or big-endian format, max 6 channels.
> > >
> > > input formats
> > >
> > > > --- libaf/af_lavcac3enc.c     (revision 0)
> > > > +++ libaf/af_lavcac3enc.c     (revision 0)
> > > > @@ -0,0 +1,289 @@
> > > > +/*
> > > > + * Audio filter for encoding AC-3 stream at runtime using libavcodec.
> > >
> > > Audio filter for runtime AC-3 encoding with libavcodec
> > >
> > --- DOCS/man/en/mplayer.1     (revision 25118)
> > +++ DOCS/man/en/mplayer.1     (working copy)
> > @@ -4695,6 +4695,31 @@
> > +.B lavcac3enc[=tospdif[:bitrate[:minchn]]]
> > +Encode multi-channel audio to AC-3 at runtime using libavcodec.
> > +Supports input 16-bit little-endian or big-endian formats, maximum 6 channels.
>
> input formats

I'm not sure, check whether current fix is what you want.

>
> > +You need to specify '\-channels N' to make the decoder decode audio into
> > +N channels, then the filter can encode the N channels input to AC-3.
>
> N-channel input
>
> > +Either set it to 384 or 384000 to get 384kbits.
>
> Set it to either
>
> > +.IPs <minchn>
> > +Minimum channel number of the input audio to use this filter (default: 5).
> > +If the input channel number is less than <minchn>, the filter will
> > +detach itself.
>
> I think the first sentence is completely redundant.  The following
> should do as well:
>
>   If the input channel number is less than <minchn>, the filter will
>   detach itself (default: 5).
>
> > --- libaf/af_lavcac3enc.c     (revision 0)
> > +++ libaf/af_lavcac3enc.c     (revision 0)
> > @@ -0,0 +1,289 @@
> > +/*
> > + * Audio filter for runtime AC-3 encoding with libavcodec.
>
> audio filter for runtime AC-3 encoding with libavcodec
>
> There are some awfully long lines in there.  Keeping them below 80
> characters would be a plus.
>

Fixed version is here.

-- 
Ulion
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