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GStreamer bindings - proof of concept

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This commit is contained in:
Alexander Kojevnikov 2010-04-30 20:49:40 +10:00
parent 2a679d6d9d
commit bfc0a505a2
2 changed files with 37 additions and 3 deletions
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37
src/spek-window.vala
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@ -1,3 +1,4 @@
using Gst;
using Gtk;
namespace Spek {
@ -28,8 +29,40 @@ namespace Spek {
STOCK_CANCEL, ResponseType.CANCEL,
STOCK_OPEN, ResponseType.ACCEPT, null);
if (chooser.run () == ResponseType.ACCEPT) {
// TODO
open (chooser.get_filename ());
}
chooser.destroy ();
}
private void open (string name) {
var pipeline = new Pipeline ("pipeline");
var filesrc = ElementFactory.make ("filesrc", "filesrc");
var decodebin = ElementFactory.make ("decodebin", "decodebin");
pipeline.add_many (filesrc, decodebin);
filesrc.link (decodebin);
filesrc.set ("location", name);
Signal.connect (decodebin, "new-decoded-pad", (GLib.Callback) on_new_decoded_pad, pipeline);
pipeline.set_state (State.PAUSED);
pipeline.get_state (null, null, -1);
unowned Iterator it = decodebin.iterate_src_pads ();
void *data;
while (it.next (out data) == IteratorResult.OK) {
var pad = (Pad) data;
var caps = pad.get_caps ();
var structure = caps.get_structure (0);
stdout.printf ("structure=%s\n", structure.to_string ());
}
}
private static void on_new_decoded_pad (
Element decodebin, Pad new_pad, bool last, Pipeline pipeline) {
var fakesink = ElementFactory.make ("fakesink", null);
pipeline.add (fakesink);
var sinkpad = fakesink.get_static_pad ("sink");
new_pad.link (sinkpad);
fakesink.set_state (State.PAUSED);
}
}
}
}

3
src/spek.vala
View File

@ -7,7 +7,8 @@ int main (string[] args) {
Gtk.init (ref args);
Gst.init (ref args);
new Spek.Window ();
var window = new Spek.Window ();
Gtk.main ();
window.destroy ();
return 0;
}