Implementing a Video-Switching-Server is easy … if you know what your're doing

1 files changed, 0 insertions, 190 deletions

diff --git a/voctocore/lib/quadmix.py b/voctocore/lib/quadmix.py
deleted file mode 100644
index 8d69304..0000000
--- a/voctocore/lib/quadmix.py
+++ /dev/null
@@ -1,190 +0,0 @@
-#!/usr/bin/python3
-import math, logging
-from gi.repository import GLib, Gst
-
-from lib.helper import iteratorHelper
-from lib.config import Config
-
-class QuadMix(Gst.Bin):
-	log = logging.getLogger('QuadMix')
-	previewbins = []
-	mixerpads = []
-
-	def __init__(self):
-		super().__init__()
-
-		caps = Gst.Caps.from_string(Config.get('mix', 'monitorcaps'))
-		self.log.debug('parsing monitorcaps from config: %s', caps.to_string())
-		struct = caps.get_structure(0)
-
-		self.monitorSize = [struct.get_int('width')[1], struct.get_int('height')[1]]
-
-		self.bgsrc = Gst.ElementFactory.make('videotestsrc', 'bgsrc')
-		self.mixer = Gst.ElementFactory.make('videomixer', 'mixer')
-		self.scale = Gst.ElementFactory.make('videoscale', 'scale')
-
-		self.add(self.bgsrc)
-		self.add(self.mixer)
-		self.add(self.scale)
-
-		self.bgsrc.link_filtered(self.mixer, caps)
-		self.mixer.link_filtered(self.scale, caps)
-		
-		self.bgsrc.set_property('pattern', 'solid-color')
-		self.bgsrc.set_property('foreground-color', 0x808080)
-
-		self.add_pad(
-			Gst.GhostPad.new('src', self.scale.get_static_pad('src'))
-		)
-
-	def request_mixer_pad(self):
-		previewbin = QuadMixPreview()
-		self.add(previewbin)
-		self.previewbins.append(previewbin)
-
-		srcpad = previewbin.get_static_pad('src')
-		sinkpad = previewbin.get_static_pad('sink')
-
-		mixerpad = self.mixer.get_request_pad('sink_%u')
-		self.mixerpads.append(mixerpad)
-		srcpad.link(mixerpad)
-
-		self.log.info('requested mixerpad %u (named %s)', len(self.mixerpads) - 1, mixerpad.get_name())
-		ghostpad = Gst.GhostPad.new(mixerpad.get_name(), sinkpad)
-		self.add_pad(ghostpad)
-		return ghostpad
-
-	def finalize(self):
-		self.log.debug('all sources linked, calculating layout')
-
-		# number of placed sources
-		count = len(self.previewbins)
-
-		# coordinate of the cell where we place the next video
-		place = [0, 0]
-		
-		# number of cells in the quadmix-monitor
-		grid = [0, 0]
-		grid[0] = math.ceil(math.sqrt(count))
-		grid[1] = math.ceil(count / grid[0])
-
-		# size of each cell in the quadmix-monitor
-		cellSize = (
-			self.monitorSize[0] / grid[0],
-			self.monitorSize[1] / grid[1]
-		)
-
-		# report calculation results
-		self.log.info('showing %u videosources in a %u×%u grid in a %u×%u px window, which gives cells of %u×%u px per videosource',
-			count, grid[0], grid[1], self.monitorSize[0], self.monitorSize[1], cellSize[0], cellSize[1])
-
-		# iterate over all previewbins
-		for idx, previewbin in enumerate(self.previewbins):
-			# request srcpad to query videosize and aspect from it
-			srcpad = previewbin.get_static_pad('src')
-
-			# select the mixerpad responsible for this previewbin from the videomixer 
-			mixerpad = self.mixerpads[idx]
-
-			# query the video-source caps and extract its size
-			caps = srcpad.query_caps(None)
-			capsstruct = caps.get_structure(0)
-			srcSize = (
-				capsstruct.get_int('width')[1],
-				capsstruct.get_int('height')[1],
-			)
-
-			# calculate the ideal scale factor and scale the sizes
-			f = max(srcSize[0] / cellSize[0], srcSize[1] / cellSize[1])
-			scaleSize = (
-				srcSize[0] / f,
-				srcSize[1] / f,
-			)
-
-			# calculate the top/left coordinate
-			coord = (
-				place[0] * cellSize[0] + (cellSize[0] - scaleSize[0]) / 2,
-				place[1] * cellSize[1] + (cellSize[1] - scaleSize[1]) / 2,
-			)
-
-			self.log.info('placing mixerpad %u of size %u×%u scaled by %u to %u×%u in a cell %u×%u px cell (%u/%u) at position (%u/%u)', 
-				idx, srcSize[0], srcSize[1], f, scaleSize[0], scaleSize[1], cellSize[0], cellSize[1], place[0], place[1], coord[0], coord[1])
-
-			# request a pad from the quadmixer and configure x/y position
-			mixerpad.set_property('xpos', round(coord[0]))
-			mixerpad.set_property('ypos', round(coord[1]))
-
-			previewbin.set_size(scaleSize)
-			previewbin.set_idx(idx)
-
-			# increment grid position
-			place[0] += 1
-			if place[0] >= grid[0]:
-				place[1] += 1
-				place[0] = 0
-
-	def set_active(self, target):
-		self.log.info('setting videosource %u active, disabling other', target)
-		for idx, previewbin in enumerate(self.previewbins):
-			previewbin.set_active(target == idx)
-
-class QuadMixPreview(Gst.Bin):
-	log = logging.getLogger('QuadMixPreview')
-	strokeWidth = 5
-
-	def __init__(self):
-		super().__init__()
-
-		self.scale = Gst.ElementFactory.make('videoscale', 'scale')
-		self.caps = Gst.ElementFactory.make('capsfilter', 'caps')
-		self.cropbox = Gst.ElementFactory.make('videobox', 'cropbox')
-		self.strokebox = Gst.ElementFactory.make('videobox', 'strokebox')
-		self.textoverlay = Gst.ElementFactory.make('textoverlay', 'textoverlay')
-
-		self.add(self.scale)
-		self.add(self.caps)
-		self.add(self.cropbox)
-		self.add(self.strokebox)
-		self.add(self.textoverlay)
-
-		self.strokebox.set_property('fill', 'green')
-
-		self.textoverlay.set_property('color', 0xFFFFFFFF)
-		self.textoverlay.set_property('halignment', 'left')
-		self.textoverlay.set_property('valignment', 'top')
-		self.textoverlay.set_property('xpad', 10)
-		self.textoverlay.set_property('ypad', 5)
-		self.textoverlay.set_property('font-desc', 'sans 35')
-
-		self.scale.link(self.caps)
-		self.caps.link(self.cropbox)
-		self.cropbox.link(self.strokebox)
-		self.strokebox.link(self.textoverlay)
-
-		self.set_active(False)
-
-		# Add Ghost Pads
-		self.add_pad(
-			Gst.GhostPad.new('sink', self.scale.get_static_pad('sink'))
-		)
-		self.add_pad(
-			Gst.GhostPad.new('src', self.textoverlay.get_static_pad('src'))
-		)
-
-	def set_size(self, scaleSize):
-		caps = Gst.Caps.new_empty_simple('video/x-raw')
-		caps.set_value('width', round(scaleSize[0]))
-		caps.set_value('height', round(scaleSize[1]))
-		self.caps.set_property('caps', caps)
-
-	def set_idx(self, idx):
-		self.textoverlay.set_property('text', str(idx))
-
-	def set_active(self, active):
-		self.log.info("switching active-state to %u", active)
-		for side in ('top', 'left', 'right', 'bottom'):
-			self.cropbox.set_property(side, self.strokeWidth if active else 0)
-			self.strokebox.set_property(side, -self.strokeWidth if active else 0)
-
-	def set_color(self, color):
-		self.strokebox.set_property('fill', color)