[Gambas-user] media component syntax and the gstreamer filesink

[Dominique Michel]

Le Fri, 14 Feb 2014 19:37:53 +0100,
Fabien Bodard <gambas.fr at ...626...> a écrit :

> and ? it's?

It's to add
  $hOutput["location"] = "wavegenerator.flac"


  $hPlayer = New MediaPipeline
  $hAudio = New MediaControl($hPlayer, "audiotestsrc")
  $hConv = New MediaControl($hPlayer, "flacenc")
  $hOutput = New MediaControl($hPlayer, "filesink"])
  $hOutput["location"] = "wavegenerator.flac"
  ' Set the pipeline 
  $hAudio.LinkTo($hConv)
  $hConv.LinkTo($hOutput)



But I get another issue now. MediaPipeline have 4 methods: Play, Pause,
Stop and Quit. 

Play is used to start the playing, and when I click on
the Play button, I get the file. 

When I click on the Play button a second time, GStreamer pause and the
file is still here and I can play it with mplayer and alsaplayer. aplay
play it but give garbage at the output. mplayer sound is the best, but
it never stop the playing. Alsaplayer sound is a little bit choppy and
the duration display is lost.

And when I quit the wavegenerator, the file is still here, but its
content is erased and give a 0 bit file. I googled a lot, but didn't
find nothing that helped.

In the play/pause function, I try to replace
  $hPlayer.Pause
by
  $hPlayer.Stop
but the issue remain the same.

When quitting, $hPlayer.Quit is called, and that's what reinitialize the
file to a 0 length file. Another issue is it look like to be no
duration information in the file before its reinitialization to 0.

I googled a lot, but didn't find nothing that helped.

Dominique

 
> 
> 2014-02-14 16:33 GMT+01:00 Dominique Michel
> <dominique.michel at ...3298...>:
> > Le Fri, 14 Feb 2014 11:51:08 +0100,
> > Dominique Michel <dominique.michel at ...3298...> a écrit :
> >
> >> I am adding a preference system to the WaveGenerator for the audio
> >> sink. It work for all sinks I try but one, the filesink.
> >>
> >> It is something like
> >>
> >>   $hPlayer = New MediaPipeline
> >>   $hAudio = New MediaControl($hPlayer, "audiotestsrc")
> >>   $hConv = New MediaControl($hPlayer, "audioconvert")
> >>   ' Set the output sink
> >>   $hOutput = New MediaControl($hPlayer, Settings["OutputSink",
> >>   "autoaudiosink"])
> >>   ' Set the pipeline
> >>   $hAudio.LinkTo($hConv)
> >>   $hConv.LinkTo($hOutput)
> >>
> >> When the output sink is filesink, the preference key look like
> >>   OutputSink="filesink location=/home/dom/wavegenerator.ogg"
> >>
> >> And when running it, it fail with
> >>   Unable to create mediacontrol dans FMain:50
> >>
> >> which is
> >>   $hOutput = New MediaControl($hPlayer, Settings["OutputSink",
> >>   "autoaudiosink"])
> >>
> >> I try without the location=.., or without the path with just
> >> location=wavegenerator.ogg, and get the same result.
> >>
> >> Is it something I can do to get this to work?
> >
> > Never mind, I find it.
> >
> >>
> >> Dominique
> >>
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