__init__.py

#!/usr/bin/python3

import subprocess
from renderlib import *
from easing import *


def pauseFrames(params):

        # 2 sec Fadein Text1
        frames = 2*fps
        for i in range(0, frames):
                yield (
                        ('text1', 'style', 'opacity', "%.4f" % easeOutCubic(i, 0, 1, frames)),
                        ('text2', 'style', 'opacity', 0)
                )

	# 2 sec Text1
        frames = 2*fps
        for i in range(0, frames):
                yield (
                        ('text1', 'style', 'opacity', 1),
                        ('text2', 'style', 'opacity', 0)
                )

        # 2 sec Fadeout Text1
        frames = 2*fps
        for i in range(0, frames):
            yield (
                        ('text1', 'style', 'opacity', "%.4f" % (1-easeOutCubic(i, 0, 1, frames))),
                        ('text2', 'style', 'opacity', 0)
                )

        # 2 sec blank
        frames = 2*fps
        for i in range(0, frames):
                yield (
                        ('text1', 'style', 'opacity', 0),
                        ('text2', 'style', 'opacity', 0)
                )

        # 2 sec Fadein Text2
        frames = 2*fps
        for i in range(0, frames):
                yield (
                        ('text2', 'style', 'opacity', "%.4f" % easeOutCubic(i, 0, 1, frames)),
                        ('text1', 'style', 'opacity', 0)
                )


        # 2 sec Text2
        frames = 2*fps
        for i in range(0, frames):
                yield (
                        ('text2', 'style', 'opacity', 1),
                        ('text1', 'style', 'opacity', 0)
                )

        # 2 sec Fadeout Text2
        frames = 2*fps
        for i in range(0, frames):
                yield (
                        ('text2', 'style', 'opacity', "%.4f" % (1-easeOutCubic(i, 0, 1, frames))),
                        ('text1', 'style', 'opacity', 0)
                )

        # 2 sec blank
        frames = 2*fps
        for i in range(0, frames):
                yield (
                        ('text1', 'style', 'opacity', 0),
                        ('text2', 'style', 'opacity', 0)
                )

def tasks(queue, args, idlist, skiplist):
	# place the pause-sequence into the queue
	queue.put(Rendertask(
		infile = 'pause.svg',
		outfile = 'pause.ts',
		sequence = pauseFrames
	))