gst-trick-mode.py: pass the speed rate as a command line argument

[experiments/gstreamer.git] / python / gst-trick-mode.py

diff --git a/python/gst-trick-mode.py b/python/gst-trick-mode.py
index e50e252..45e7af2 100755 (executable)
--- a/python/gst-trick-mode.py
+++ b/python/gst-trick-mode.py
@@ -1,5 +1,7 @@
 #!/usr/bin/env python
-
+#
+# A simple "trick-mode" player to play a file at a given speed rate.
+#
 # Get a test sample with:
 # youtube-dl -t http://www.youtube.com/watch?v=yWa-YXiSk2Y
 
@@ -15,12 +17,11 @@ GObject.threads_init()
 
 
 class Player:
-    def __init__(self, filename, rate):
-        self._filename = filename
+    def __init__(self, uri, rate):
         self._rate = rate
 
         self._player = Gst.ElementFactory.make("playbin", "player")
-        self._player.set_property("uri", filename)
+        self._player.set_property("uri", uri)
 
         bus = self._player.get_bus()
         bus.add_signal_watch()
@@ -71,17 +72,16 @@ class Player:
 
 def main(args):
     def usage():
-        sys.stdout.write("usage: %s <URI-OF-MEDIA-FILE>\n" % args[0])
+        sys.stdout.write("usage: %s <filename> <speedrate>\n" % args[0])
 
-    if len(args) != 2:
+    if len(args) != 3:
         usage()
         sys.exit(1)
 
-    if not Gst.uri_is_valid(args[1]):
-        sys.stderr.write("Error: Invalid URI: %s\n" % args[1])
-        sys.exit(1)
+    uri = Gst.filename_to_uri(args[1])
+    rate = float(args[2])
 
-    player = Player(args[1], 3.0)
+    player = Player(uri, rate)
     player.run()
 
 if __name__ == '__main__':