From c752709208522a5a04416e0d033aa32f8c0dc8c0 Mon Sep 17 00:00:00 2001
From: MaZderMind <github@mazdermind.de>
Date: Tue, 29 Jul 2014 22:50:17 +0200
Subject: setting stuff up with a launch-string is far more easy
---
voctocore/videomix.py | 78 +++++++++++++--------------------------------------
1 file changed, 20 insertions(+), 58 deletions(-)
diff --git a/voctocore/videomix.py b/voctocore/videomix.py
index 895a25f..1426cb4 100644
--- a/voctocore/videomix.py
+++ b/voctocore/videomix.py
@@ -7,63 +7,25 @@ class Videomix:
mixerpads = []
def __init__(self):
- self.pipeline = Gst.Pipeline()
-
- self.videomixer = Gst.ElementFactory.make('videomixer', 'videomixer')
- self.pipeline.add(self.videomixer)
-
- for uri in ("http://video.blendertestbuilds.de/download.blender.org/ED/ED_1280.avi", "http://download.blender.org/durian/trailer/sintel_trailer-720p.mp4",):
- decoder = Gst.ElementFactory.make('uridecodebin', 'uridecoder('+uri+')')
- decoder.set_property("uri", uri)
- decoder.connect("pad-added", self.OnDynamicPad)
- self.pipeline.add(decoder)
- self.decoder.append(decoder)
-
- self.monitorvideosink = Gst.ElementFactory.make('autovideosink', 'monitorvideosink')
- self.pipeline.add(self.monitorvideosink)
- self.videomixer.link(self.monitorvideosink)
-
- self.monitoraudiosink = Gst.ElementFactory.make('autoaudiosink', 'monitoraudiosink')
- self.pipeline.add(self.monitoraudiosink)
+ self.pipeline = Gst.parse_launch("""
+ videomixer name=livevideo ! autovideosink
+ input-selector name=liveaudio ! autoaudiosink
+
+ uridecodebin name=cam0 uri=file:///home/peter/122.mp4
+ uridecodebin name=cam1 uri=file:///home/peter/10025.mp4
+
+ cam0. ! videoconvert ! videoscale ! videorate ! video/x-raw,width=1024,height=576,framerate=25/1 ! livevideo.
+ cam1. ! videoconvert ! videoscale ! videorate ! video/x-raw,width=1024,height=576,framerate=25/1 ! livevideo.
+
+ cam0. ! audioconvert ! liveaudio.
+ cam1. ! audioconvert ! liveaudio.
+ """)
+
+ liveaudio = self.pipeline.get_by_name('liveaudio')
+ liveaudio.set_property('active-pad', liveaudio.get_static_pad('sink_0'))
+
+ livevideo = self.pipeline.get_by_name('livevideo')
+ pad = livevideo.get_static_pad('sink_1')
+ pad.set_property('alpha', 0.5)
self.pipeline.set_state(Gst.State.PLAYING)
-
- GLib.io_add_watch(sys.stdin, GLib.IO_IN, self.Input)
-
- def Input(self, fd, condition):
- if condition == GLib.IO_IN:
- char = fd.readline()
- try:
- i = int(char.rstrip())
- print("settinh pad {0} to alpha=1".format(i))
- self.mixerpads[i].set_property('alpha', 1)
- for idx, pad in enumerate(self.mixerpads):
- if idx != i:
- print("settinh pad {0} to alpha=0".format(idx))
- pad.set_property('alpha', 0)
- except:
- pass
-
- return True
- else:
- return False
-
- def OnDynamicPad(self, uridecodebin, src_pad):
- caps = src_pad.query_caps(None).to_string()
- srcname = uridecodebin.get_name()
- print("{0}-source of {1} online".format(caps.split(',')[0], srcname))
-
- if caps.startswith('audio/'):
- sinkpad = self.monitoraudiosink.get_static_pad("sink")
-
- # link the first audio-stream and be done
- if not sinkpad.is_linked():
- src_pad.link(sinkpad)
-
- else:
- sinkpad = Gst.Element.get_request_pad(self.videomixer, "sink_%u")
- src_pad.link(sinkpad)
- self.mixerpads.append(sinkpad)
- print('add', sinkpad)
- sinkpad.set_property('alpha', 0.7)
-
--
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