diff options
Diffstat (limited to 'voctocore/lib/audiomix.py')
| -rw-r--r-- | voctocore/lib/audiomix.py | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/voctocore/lib/audiomix.py b/voctocore/lib/audiomix.py index 24c34a9..e307527 100644 --- a/voctocore/lib/audiomix.py +++ b/voctocore/lib/audiomix.py @@ -18,15 +18,46 @@ class AudioMix(object): def __init__(self): self.caps = Config.get('mix', 'audiocaps') + self.names = Config.getlist('mix', 'sources') + self.log.info('Configuring Mixer for %u Sources', len(self.names)) + pipeline = """ - interaudiosrc channel=audio_cam1_mixer ! + audiomixer name=mix ! {caps} ! - queue ! interaudiosink channel=audio_mix """.format( caps=self.caps ) + for idx, name in enumerate(self.names): + pipeline += """ + interaudiosrc channel=audio_{name}_mixer ! + {caps} ! + mix. + """.format( + name=name, + caps=self.caps + ) + 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') self.mixingPipeline.set_state(Gst.State.PLAYING) + + def updateMixerState(self): + self.log.info('Updating Mixer-State') + + for idx, name in enumerate(self.names): + volume = int(idx == self.selectedSource) + + self.log.debug('Setting Mixerpad %u to volume=%0.2f', idx, volume) + mixerpad = self.mixingPipeline.get_by_name('mix').get_static_pad('sink_%u' % idx) + mixerpad.set_property('volume', volume) + + def setAudioSource(self, source): + self.selectedSource = source + self.updateMixerState() |