[gst-devel] Simple

[Stefan Kost]

hi,

Frédéric Gaudy schrieb:
> Hello,
> 
> I try to create a program that just read a audio file using [filesrc !
> decodebin ! autoaudiosink] pipe.
> 
> But when playing I've got this error :
> Error ! Internal data flow error.
> Debug ! gstbasesrc.c(2240): gst_base_src_loop (): /convert/filesrc:
> streaming task paused, reason not-linked (-1)
> 
> But I've linked filesrc to decodebin, so I don't understand the meaning
> of this error

Read in the docs about sometimes pads. Decodebin will create pads when analyzing
the media and fire signal when the pads are created. Then you can link from the
callback. This is an faq and if you would have checked the return code of
element.link() you would have noticed.

Stefan

> 
> I hope you could help me.
> 
> Code :
> public void read() {
>         File source      = File.new_for_uri(this.source);
>         File destination = File.new_for_uri(this.destination);
>        
>         Element filesrc = ElementFactory.make("filesrc", "filesrc");
>         filesrc.set("location", source..get_path() );
>        
>         Element decodebin = ElementFactory.make("decodebin", "decodebin");
>        
>         Element filesink = ElementFactory.make("autoaudiosink", "filesink");
>        
>         this.pipeline = new Pipeline("convert");
>         pipeline.add_many(filesrc, decodebin, filesink);
>         var bus = pipeline.get_bus();
>         bus.add_signal_watch();
>         bus.message += this.message_bus_callback;
>        
>         filesrc.link(decodebin);
>         decodebin.link(filesink);
>        
>         this.pipeline.set_state( Gst.State.PLAYING );
> }
> 
> 
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