[FFmpeg-devel] [PATCH] Add asink_anullsink - Null audio sink

Stefano Sabatini stefano.sabatini-lala
Sat Sep 25 03:58:27 CEST 2010


On date Friday 2010-09-24 22:39:50 +0200, Michael Niedermayer encoded:
> On Fri, Sep 24, 2010 at 10:33:13PM +0200, Stefano Sabatini wrote:
> > On date Wednesday 2010-09-15 19:49:07 +0200, Michael Niedermayer encoded:
> > > On Wed, Sep 15, 2010 at 04:31:07PM +0200, Stefano Sabatini wrote:
> > > > On date Wednesday 2010-09-15 14:07:40 +0200, Michael Niedermayer encoded:
> > > > > On Wed, Sep 15, 2010 at 12:53:37AM +0200, Stefano Sabatini wrote:
> > > > > > On date Thursday 2010-08-19 17:06:53 +0200, Stefano Sabatini encoded:
> > > > > > > On date Thursday 2010-08-19 06:11:12 -0700, S.N. Hemanth Meenakshisundaram encoded:
> > > > > > > > Renamed, updated doc.
> > > > > > > > 
> > > > > > > > ---
> > > > > > > >  doc/filters.texi              |   13 +++++++++++++
> > > > > > > >  libavfilter/Makefile          |    2 ++
> > > > > > > >  libavfilter/allfilters.c      |    2 ++
> > > > > > > >  libavfilter/asink_anullsink.c |   40 ++++++++++++++++++++++++++++++++++++++++
> > > > > > > >  4 files changed, 57 insertions(+), 0 deletions(-)
> > > > > > > >  create mode 100644 libavfilter/asink_anullsink.c
> > > > > > > 
> > > > > > > Looks fine.
> > > > > > 
> > > > > > I'll apply in three days if I see no objections.
> > > > > 
> > > > > Does this filter work?
> > > > > Does it consume audio or does it never read a single sample? 
> > > > 
> > > > Consume audio, but input samples are completely ignored (but that's
> > > > not the point of the filter, which is to help testing/debuggging
> > > > filterchain setup), and is the equivalent of the video nullsink.
> > > 
> > > iam not so sure if this filter actually works
> > > the thing is that nothing seems to ever call request_frame and so nothing
> > > will ever be pushed towards this sink. its like ffmpeg will wait at frame
> > > 1 for ever.
> > 
> > That's the point of a sink. It will never be requested of frames as
> > it is a null sink.
> > 
> > Of course you can have other sinks which currently sucks data like
> > here:
> > asrc, anull, anull, asplit [A1][A2]; [A1] anullsink; [A2] asink
> > 
> > Patch updated.
> > 
> > Regards.
> > -- 
> > FFmpeg = Frenzy & Furious Muttering Porno Exuberant Geek
> 
> >  doc/filters.texi              |   13 +++++++++++++
> >  libavfilter/Makefile          |    2 ++
> >  libavfilter/allfilters.c      |    2 ++
> >  libavfilter/asink_anullsink.c |   38 ++++++++++++++++++++++++++++++++++++++
> >  4 files changed, 55 insertions(+)
> > f692c56b1865d4d6f70f32eba786678d6b73f4f0  0002-Add-asink_anullsink-null-audio-sink.patch
> > From c6c56badb5e219a0fe9f7118ed36eef652756884 Mon Sep 17 00:00:00 2001
> > From: Stefano Sabatini <stefano.sabatini-lala at poste.it>
> > Date: Fri, 24 Sep 2010 21:46:31 +0200
> > Subject: [PATCH 2/2] Add asink_anullsink - null audio sink.
> > 
> > Patch by "S.N. Hemanth Meenakshisundaram" /smeenaks/ucsd/edu.
> 
> ok

Applied.
-- 
FFmpeg = Funny and Foolish Mysterious Pacific Erroneous God



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