[Gambas-user] Problem with MediaPipeline

[vuott at tutanota.com]

Hello,
using in terminal pipe with gst-launch-1.0, reported by you, it does "not" work for me.




14 apr 2023, 22:00 da claus.dietrich at freenet.de:

>
> Hi
>
>
> I am trying to record audio from the pulse monitor device. The      GStreamer pipe
>
>
> $ gst-launch-1.0 -v pulsesrc      device="alsa_output.pci-0000_00_1b.0.analog-stereo.monitor" !      audio/x-raw,rate=44100,channels=2 ! lamemp3enc quality=0      target=bitrate bitrate=192 cbr=true ! id3v2mux ! filesink      location="/home/$USER/output.mp3"
>
>
> works, but I failed to setup an equivalent as Gambas      MediaPipeline. The following code is causing an error in line      enc["target"] = bitrate and when I uncomment the line I get an      error "Cannot set status" at pl.play.
>
>
>
>
> ' Gambas class file
>  Private pl As MediaPipeline
>  Private src As MediaControl
>  Private fmt As MediaControl
>  Private enc As MediaControl
>  Private met As MediaControl
>  Private snk As MediaControl
>  
>  Public Sub Form_Open()
>  
>    pl = New MediaPipeline 
>    src = New MediaControl(pl, "pulsesrc")
>    src["device"] =      "alsa_output.pci-0000_00_1b.0.analog-stereo.monitor"
>    fmt = New MediaControl(pl, "audio/x-raw,rate=44100,channels=2") 
>    enc = New MediaControl(pl, "lamemp3enc")
>    enc["quality"] = 0
>    'enc["target"] = bitrate
>    enc["bitrate"] = 192
>    enc["cbr"] = True
>    met = New MediaControl(pl, "id3v2mux")
>    snk = New MediaControl(pl, "filesink")
>    snk["location"] = "/home/$USER/output.mp3"
>    
>    src.LinkTo(fmt)
>    fmt.LinkTo(enc)
>    enc.LinkTo(met)
>    met.LinkTo(snk)
>    
>  End
>  
>  Public Sub Button1_Click()
>  
>    pl.play
>  
>  End
>
>
>
>
> Can someone help?
>
>
> Best regards
>
>
> Claus
>
>

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