Audio coding/encoding conversions

Audio coding/encoding conversions

[Wynfield Henman]

Has anybody had any success building --> ffmpeg
on cygwin.   It has a rich set of codecs it can convert to and from.

My main concern is to convert .3gp audio files into .wav,  or .mp3 formats

regards

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RE: Audio coding/encoding conversions

[Dave Korn]

On 13 December 2007 12:46, Wynfield Henman wrote:

> Has anybody had any success building --> ffmpeg
> on cygwin.   It has a rich set of codecs it can convert to and from.

  ffmpeg requires an llrintf() implementation to compile.  newlib doesn't
currently have one, but I'm in the process of sending a patch, so it might get a
lot easier once I've done that and there's a fresh cygwin snapshot been
generated.


    cheers,
      DaveK
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Re: Audio coding/encoding conversions

[Victor Paesa]

Hi,

Dave Korn writes:
> 
> On 13 December 2007 12:46, Wynfield Henman wrote:
> 
> > Has anybody had any success building --> ffmpeg
> > on cygwin.   It has a rich set of codecs it can convert to and from.
> 
>   ffmpeg requires an llrintf() implementation to compile.  newlib doesn't
> currently have one, but I'm in the process of sending a patch, so it might get
> a lot easier once I've done that and there's a fresh cygwin snapshot been
> generated.

Until that very welcomed patch is applied, you may choose among three ways 
(not so correct) to get ffmpeg on cygwin:

a) Inline llrintf()
http://article.gmane.org/gmane.comp.video.ffmpeg.devel/37442

b) Leverage MinGW's implementation:
http://ffmpeg.mplayerhq.hu/general.html#SEC16

c) Get the binaries from Cygwin Ports:
http://cygwinports.dotsrc.org/

Regards,
Víctor


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Re: Audio coding/encoding conversions

[wynfield]

Thanks Victor and Dave, for the information regarding ffmpeg, both about the future of it for cygwin and how to get by for now.

Regards, 
   Wynfield

----------------

Victor Paesa <wzrlpy@arsystel.com> wrote:

> Hi,
> 
> Dave Korn writes:
> > 
> > On 13 December 2007 12:46, Wynfield Henman wrote:
> > 
> > > Has anybody had any success building --> ffmpeg
> > > on cygwin.   It has a rich set of codecs it can convert to and from.
> > 
> >   ffmpeg requires an llrintf() implementation to compile.  newlib doesn't
> > currently have one, but I'm in the process of sending a patch, so it might get
> > a lot easier once I've done that and there's a fresh cygwin snapshot been
> > generated.
> 
> Until that very welcomed patch is applied, you may choose among three ways 
> (not so correct) to get ffmpeg on cygwin:
> 
> a) Inline llrintf()
> http://article.gmane.org/gmane.comp.video.ffmpeg.devel/37442
> 
> b) Leverage MinGW's implementation:
> http://ffmpeg.mplayerhq.hu/general.html#SEC16
> 
> c) Get the binaries from Cygwin Ports:
> http://cygwinports.dotsrc.org/
> 
> Regards,
> Víctor
> 
> 
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