From: Antonio Ospite <ao2@ao2.it>
Date: Wed, 17 Sep 2014 10:54:56 +0000 (+0200)
Subject: gst-trick-mode.py: port to GStreamer 1.0
X-Git-Url: https://git.ao2.it/experiments/gstreamer.git/commitdiff_plain/d6c6f1da71c2d875f82a829c63af0a6131b83932?ds=inline

gst-trick-mode.py: port to GStreamer 1.0
---

diff --git a/python/gst-trick-mode.py b/python/gst-trick-mode.py
index a4e063f..e50e252 100755
--- a/python/gst-trick-mode.py
+++ b/python/gst-trick-mode.py
@@ -5,10 +5,13 @@
 
 import sys
 
-import gobject
-gobject.threads_init()
+import gi
+gi.require_version('Gst', '1.0')
+from gi.repository import Gst
+Gst.init(None)
 
-import gst
+from gi.repository import GObject
+GObject.threads_init()
 
 
 class Player:
@@ -16,7 +19,7 @@ class Player:
         self._filename = filename
         self._rate = rate
 
-        self._player = gst.element_factory_make("playbin2", "player")
+        self._player = Gst.ElementFactory.make("playbin", "player")
         self._player.set_property("uri", filename)
 
         bus = self._player.get_bus()
@@ -24,8 +27,8 @@ class Player:
         bus.connect('message::state-changed', self.on_state_changed)
 
     def run(self):
-        self._player.set_state(gst.STATE_PLAYING)
-        loop = gobject.MainLoop()
+        self._player.set_state(Gst.State.PLAYING)
+        loop = GObject.MainLoop()
         loop.run()
 
     def on_state_changed(self, bus, msg):
@@ -35,35 +38,35 @@ class Player:
         print 'on_state_changed'
         old_state, new_state, pending = msg.parse_state_changed()
         print "%s -> %s" % (old_state, new_state)
-        if old_state == gst.STATE_READY and new_state == gst.STATE_PAUSED:
+        if old_state == Gst.State.READY and new_state == Gst.State.PAUSED:
             self.set_rate(self._rate)
 
     def set_rate(self, rate):
         self._rate = rate
         try:
-            position, format = self._player.query_position(gst.FORMAT_TIME)
+            position, fmt = self._player.query_position(Gst.Format.TIME)
         except:
             position = 0
 
         # Create the seek event
         if rate > 0:
-            seek_event = gst.event_new_seek(rate,
-                    gst.FORMAT_TIME,
-                    gst.SEEK_FLAG_FLUSH | gst.SEEK_FLAG_ACCURATE,
-                    gst.SEEK_TYPE_SET, position,
-                    gst.SEEK_TYPE_NONE, 0)
+            seek_event = Gst.Event.new_seek(rate,
+                    Gst.Format.TIME,
+                    Gst.SeekFlags.FLUSH | Gst.SeekFlags.ACCURATE,
+                    Gst.SeekType.SET, position,
+                    Gst.SeekType.NONE, 0)
         else:
-            seek_event = gst.event_new_seek(rate,
-                    gst.FORMAT_TIME,
-                    gst.SEEK_FLAG_FLUSH | gst.SEEK_FLAG_ACCURATE,
-                    gst.SEEK_TYPE_SET, 0,
-                    gst.SEEK_TYPE_SET, position)
+            seek_event = Gst.Event.new_seek(rate,
+                    Gst.Format.TIME,
+                    Gst.SeekFlags.FLUSH | Gst.SeekFlags.ACCURATE,
+                    Gst.SeekType.SET, 0,
+                    Gst.SeekType.SET, position)
 
         if seek_event:
             self._player.send_event(seek_event)
-            gst.info("rate set to %s" % rate)
+            Gst.info("rate set to %s" % rate)
         else:
-            gst.warining("change rate failed")
+            Gst.warining("change rate failed")
 
 
 def main(args):
@@ -74,7 +77,7 @@ def main(args):
         usage()
         sys.exit(1)
 
-    if not gst.uri_is_valid(args[1]):
+    if not Gst.uri_is_valid(args[1]):
         sys.stderr.write("Error: Invalid URI: %s\n" % args[1])
         sys.exit(1)