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

[Dominique Michel]

Le Fri, 14 Feb 2014 23:42:51 +0100,
Dominique Michel <dominique.michel at ...3298...> a écrit :

> 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")

That solve the duration issue with mplayer and alsaplayer:
    $hAudio["is-live"] = "1"
but not the 0 length file issue.

>   $hConv = New MediaControl($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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> > 
> > 
> 
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> Android apps run on BlackBerry 10
> Introducing the new BlackBerry 10.2.1 Runtime for Android apps.
> Now with support for Jelly Bean, Bluetooth, Mapview and more.
> Get your Android app in front of a whole new audience.  Start now.
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