diff options
Diffstat (limited to 'voctocore/lib/video/mix.py')
| -rw-r--r-- | voctocore/lib/video/mix.py | 63 |
1 files changed, 47 insertions, 16 deletions
diff --git a/voctocore/lib/video/mix.py b/voctocore/lib/video/mix.py index 8bb7036..a9e1513 100644 --- a/voctocore/lib/video/mix.py +++ b/voctocore/lib/video/mix.py @@ -1,19 +1,30 @@ #!/usr/bin/python3 import logging from gi.repository import Gst +from enum import Enum from lib.config import Config +class ComposteModes(Enum): + fullscreen = 0 + class VideoMix(object): log = logging.getLogger('VideoMix') mixingPipeline = None + caps = None + names = [] + + compositeMode = ComposteModes.fullscreen + sourceA = 0 + sourceB = 1 + def __init__(self): - caps = Config.get('mix', 'videocaps') + self.caps = Config.get('mix', 'videocaps') - names = Config.getlist('sources', 'video') - self.log.info('Configuring Mixer for %u Sources', len(names)) + self.names = Config.getlist('sources', 'video') + self.log.info('Configuring Mixer for %u Sources', len(self.names)) pipeline = """ videomixer name=mix ! @@ -21,10 +32,10 @@ class VideoMix(object): textoverlay text=mixer halignment=left valignment=top ypad=175 ! intervideosink channel=video_mix """.format( - caps=caps + caps=self.caps ) - for idx, name in enumerate(names): + for idx, name in enumerate(self.names): pipeline += """ intervideosrc channel=video_{name}_mixer ! {caps} ! @@ -33,22 +44,42 @@ class VideoMix(object): mix. """.format( name=name, - caps=caps, + caps=self.caps, idx=idx ) - self.log.debug('Launching Mixing-Pipeline:\n%s', pipeline) + self.log.debug('Creating Mixing-Pipeline:\n%s', pipeline) self.mixingPipeline = Gst.parse_launch(pipeline) + + self.log.debug('Initializing Mixer-State') + self.updateMixerState() + + self.log.debug('Launching Mixing-Pipeline:\n%s', pipeline) self.mixingPipeline.set_state(Gst.State.PLAYING) - mixerpad = self.mixingPipeline.get_by_name('mix').get_static_pad('sink_0') - mixerpad.set_property('alpha', 0.5) - mixerpad.set_property('xpos', 64) - mixerpad.set_property('ypos', 64) + def updateMixerState(self): + if self.compositeMode == ComposteModes.fullscreen: + self.updateMixerStateFullscreen() + + def updateMixerStateFullscreen(self): + self.log.info('Updating Mixer-State for Fullscreen-Composition') + for idx, name in enumerate(self.names): + alpha = int(idx == self.sourceA) + + self.log.debug('Setting Mixerpad %u to x/y=0 and alpha=%u', idx, alpha) + mixerpad = self.mixingPipeline.get_by_name('mix').get_static_pad('sink_%u' % idx) + mixerpad.set_property('alpha', alpha ) + mixerpad.set_property('xpos', 0) + mixerpad.set_property('ypos', 0) + + self.log.debug('Resetting Scaler %u to non-scaling', idx) + capsfilter = self.mixingPipeline.get_by_name('caps_%u' % idx) + capsfilter.set_property('caps', Gst.Caps.from_string(self.caps)) - mixerpad = self.mixingPipeline.get_by_name('mix').get_static_pad('sink_1') - mixerpad.set_property('alpha', 0.2) + def setVideoA(self, source): + self.sourceA = source + self.updateMixerState() - capsilter = self.mixingPipeline.get_by_name('caps_1') - capsilter.set_property('caps', Gst.Caps.from_string( - 'video/x-raw,width=320,height=180')) + def setVideoB(self, source): + self.sourceN = source + self.updateMixerState() |