From: Einar Jørgen Haraldseid <einar.haraldseid@ntnu.no>
Date: Wed, 7 Jun 2017 09:30:22 +0000 (+0200)
Subject: gst-fractions the bane of my existence
X-Git-Url: https://git.slaskete.net/python-gstreamer-examples/commitdiff_plain/a94ae2ba254f9d57eb22a38a998a90e417f0b6d9?ds=sidebyside;hp=cff7d2b533afd93201d316a24d34137f55714cc0

gst-fractions the bane of my existence
---

diff --git a/example4.py b/example4.py
index 12e10aa..b39d175 100755
--- a/example4.py
+++ b/example4.py
@@ -38,7 +38,7 @@ class Main:
         # Add a videotestsrc element, set it to pattern "ball" and some other properties
         self.ball = Gst.ElementFactory.make("videotestsrc", "ball")
         self.ball.set_property("pattern", "ball")
-        self.ball.set_property("flip", True)
+        #self.ball.set_property("flip", True)
 
         # Add a capsfilter that we want to apply to our ball
         self.ballcaps = Gst.ElementFactory.make("capsfilter", "ballcaps")
diff --git a/example5.py b/example5.py
index f2aa4ea..b775398 100755
--- a/example5.py
+++ b/example5.py
@@ -8,7 +8,7 @@ gi.require_version('Gst', '1.0')
 gi.require_version('GstVideo', '1.0')
 from gi.repository import Gtk, Gst, GdkX11, GstVideo
 
-stream1="http://192.168.0.90/video/mjpg.cgi"
+stream1="rtmp://matuku.hig.no/live/planet.stream"
 
 class Main:
     def __init__(self):
@@ -52,17 +52,25 @@ class Main:
         self.src1dec = Gst.ElementFactory.make("decodebin", "src1dec")
 
         # src2
-        self.src2 = Gst.ElementFactory.make("v4l2src", "src2")
-        self.src2.set_property("device", "/dev/video1")
+        self.src2 = Gst.ElementFactory.make("videotestsrc", "src2")
+        self.src2.set_property("pattern", "ball")
         self.src2caps = Gst.ElementFactory.make("capsfilter", "src2caps")
-        self.src2caps.set_property("caps", jpegcaps)
+        self.src2caps.set_property("caps", xrawcaps)
         self.src2dec = Gst.ElementFactory.make("decodebin", "src2dec")
 
         # src3
-        self.src3 = Gst.ElementFactory.make("videotestsrc", "src3")
-        self.src3caps = Gst.ElementFactory.make("capsfilter", "src3caps")
-        self.src3caps.set_property("caps", xrawcaps)
+        self.src3 = Gst.ElementFactory.make("rtmpsrc", "src3")
+        self.src3.set_property("location", stream1)
+#        self.src3caps = Gst.ElementFactory.make("capsfilter", "src3caps")
+#        self.src3caps.set_property("caps", xrawcaps)
         self.src3dec = Gst.ElementFactory.make("decodebin", "src3dec")
+        self.src3crop = Gst.ElementFactory.make("aspectratiocrop", "src3crop")
+        self.src3crop.set_property("aspect-ratio", Gst.Fraction(16, 9))
+        self.src3crop.set_property("async-handling", True)
+        self.src3croppad = self.src3crop.get_static_pad("sink")
+        self.src3scale = Gst.ElementFactory.make("videoscale")
+        self.src3scalecaps = Gst.ElementFactory.make("capsfilter", "src3scalecaps")
+        self.src3scalecaps.set_property("caps", Gst.Caps.from_string("width=1280,height=720"))
 
         # Video mix
         self.videomix = Gst.ElementFactory.make("videomixer", "videomix")
@@ -81,17 +89,19 @@ class Main:
         self.pipeline.add(self.src1)
         self.pipeline.add(self.src1caps)
         self.pipeline.add(self.src1dec)
-        self.src1dec.connect("pad-added", self.OnPadAdded, self.src1pad)
+        self.src1dec.connect("pad-added", self.OnPadAdded, self.src1pad, self.videomix)
 
         self.pipeline.add(self.src2)
         self.pipeline.add(self.src2caps)
         self.pipeline.add(self.src2dec)
-        self.src2dec.connect("pad-added", self.OnPadAdded, self.src2pad)
+        self.src2dec.connect("pad-added", self.OnPadAdded, self.src2pad, self.videomix)
 
         self.pipeline.add(self.src3)
-        self.pipeline.add(self.src3caps)
+#        self.pipeline.add(self.src3caps)
         self.pipeline.add(self.src3dec)
-        self.src3dec.connect("pad-added", self.OnPadAdded, self.src3pad)
+        self.src3dec.connect("pad-added", self.OnPadAdded, self.src3croppad, self.src3scale)
+        self.pipeline.add(self.src3scale)
+        self.pipeline.add(self.src3scalecaps)
 
         self.pipeline.add(self.videomix)
         self.pipeline.add(self.videosink)
@@ -109,10 +119,18 @@ class Main:
         if not self.src2caps.link(self.src2dec):
             print("Failed to link src2caps to src2dec")
 
-        if not self.src3.link(self.src3caps):
-            print("Failed to link src3 to src3caps")
-        if not self.src3caps.link(self.src3dec):
-            print("Failed to link src3caps to src3dec")
+#        if not self.src3.link(self.src3caps):
+#            print("Failed to link src3 to src3caps")
+        if not self.src3.link(self.src3dec):
+            print("Failed to link src3 to src3dec")
+        if not self.src3scale.link(self.src3scalecaps):
+            print("Failed to link src3scale to src3scalecaps")
+	if not self.src3scalecaps.link(self.src3crop):
+	    print("Failed to link src3scalecaps to src3crop")
+	if not self.src3crop.link(self.src3cropcaps):
+	    print("Failed to link src3crop to src3cropcaps")
+	if not self.src3cropcaps.link(self.videomix):
+	    print("Failed to link src3cropcaps to videomix")
 
         # Set up a bus to our pipeline to get notified when the video is ready
         self.bus = self.pipeline.get_bus()
@@ -140,10 +158,10 @@ class Main:
             print("prepare-window-handle")
             message.src.set_window_handle(self.win_id)
 
-    def OnPadAdded(self, element, pad, sink):
-        print("Dynamic pad added")
-        print(pad.link(sink))
-        print(element.link(self.videomix))
+    def OnPadAdded(self, element, pad, sink, target):
+        print("Dynamic pad for " + element.name + " added, linking to " + target.name)
+        pad.link(sink)
+        element.link(target)
 
     def SetInput1(self, widget):
         print("Switch to input 1")