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Diffstat (limited to 'voctocore/lib/video/mix.py')
| -rw-r--r-- | voctocore/lib/video/mix.py | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/voctocore/lib/video/mix.py b/voctocore/lib/video/mix.py deleted file mode 100644 index bcac7d2..0000000 --- a/voctocore/lib/video/mix.py +++ /dev/null @@ -1,167 +0,0 @@ -#!/usr/bin/python3 -import logging -from gi.repository import Gst -from enum import Enum - -from lib.config import Config - -class CompositeModes(Enum): - fullscreen = 0 - side_by_side_equal = 1 - -class VideoMix(object): - log = logging.getLogger('VideoMix') - - mixingPipeline = None - - caps = None - names = [] - - compositeMode = CompositeModes.fullscreen - sourceA = 0 - sourceB = 1 - - def __init__(self): - self.caps = Config.get('mix', 'videocaps') - - self.names = Config.getlist('sources', 'video') - self.log.info('Configuring Mixer for %u Sources', len(self.names)) - - pipeline = """ - videomixer name=mix ! - {caps} ! - textoverlay text=mixer halignment=left valignment=top ypad=175 ! - intervideosink channel=video_mix - """.format( - caps=self.caps - ) - - for idx, name in enumerate(self.names): - pipeline += """ - intervideosrc channel=video_{name}_mixer ! - {caps} ! - videoscale ! - capsfilter name=caps_{idx} ! - mix. - """.format( - name=name, - caps=self.caps, - idx=idx - ) - - 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) - - def updateMixerState(self): - if self.compositeMode == CompositeModes.fullscreen: - self.updateMixerStateFullscreen() - - if self.compositeMode == CompositeModes.side_by_side_equal: - self.updateMixerStateSideBySideEqual() - - def updateMixerStateFullscreen(self): - self.log.info('Updating Mixer-State for Fullscreen-Composition') - - noScaleCaps = Gst.Caps.from_string('video/x-raw') - - for idx, name in enumerate(self.names): - alpha = int(idx == self.sourceA) - - self.log.debug('Setting Mixerpad %u to x/y=0 and alpha=%0.2f', 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', noScaleCaps) - - def getInputVideoSize(self): - caps = Gst.Caps.from_string(self.caps) - struct = caps.get_structure(0) - _, width = struct.get_int('width') - _, height = struct.get_int('height') - - return width, height - - def updateMixerStateSideBySideEqual(self): - self.log.info('Updating Mixer-State for Side-by-side-Equal-Composition') - - width, height = self.getInputVideoSize() - gutter = int(width / 100) - - self.log.debug('Video-Size parsed as %u/%u, Gutter calculated to %upx', width, height, gutter) - - targetWidth = int((width - gutter) / 2) - targetHeight = int(targetWidth / width * height) - - ycenter = (height - targetHeight) / 2 - xa = 0 - xb = width - targetWidth - - scaleCaps = Gst.Caps.from_string('video/x-raw,width=%u,height=%u' % (targetWidth, targetHeight)) - noScaleCaps = Gst.Caps.from_string('video/x-raw') - - for idx, name in enumerate(self.names): - mixerpad = self.mixingPipeline.get_by_name('mix').get_static_pad('sink_%u' % idx) - - if idx == self.sourceA: - x = xa - y = ycenter - caps = scaleCaps - alpha = 1 - - self.log.debug('Setting Mixerpad %u to x/y=%u/%u and alpha=%0.2f', idx, x, y, alpha) - self.log.debug('Setting Scaler %u to %u/%u', idx, targetWidth, targetHeight) - - elif idx == self.sourceB: - x = xb - y = ycenter - caps = scaleCaps - alpha = 1 - - self.log.debug('Setting Mixerpad %u to x/y=%u/%u and alpha=%0.2f', idx, x, y, alpha) - self.log.debug('Setting Scaler %u to %u/%u', idx, targetWidth, targetHeight) - - else: - x = 0 - y = 0 - caps = noScaleCaps - alpha = 0 - - self.log.debug('Setting Mixerpad %u to x/y=%u/%u and alpha=%0.2f', idx, x, y, alpha) - self.log.debug('Resetting Scaler %u to non-scaling', idx) - - mixerpad.set_property('alpha', alpha) - mixerpad.set_property('xpos', x) - mixerpad.set_property('ypos', y) - - capsfilter = self.mixingPipeline.get_by_name('caps_%u' % idx) - capsfilter.set_property('caps', caps) - - def setVideoA(self, source): - # swap if required - if self.sourceB == source: - self.sourceB = self.sourceA - - self.sourceA = source - self.updateMixerState() - - def setVideoB(self, source): - # swap if required - if self.sourceA == source: - self.sourceA = self.sourceB - - self.sourceB = source - self.updateMixerState() - - def setCompositeMode(self, mode): - self.compositeMode = mode - self.updateMixerState() |