2009-09-13 15:14:45 +00:00
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# audio/video sync test
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# by: Andrew Lok
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# 2009-06-22
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#
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# This code is part of OpenLP's testsuite
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# OpenLP - Open Source Lyrics Projection
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# Copyright (c) 2009 Andrew Lok
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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# Place, Suite 330, Boston, MA 02111-1307 USA
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#
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function SyncClip(float framerate, int audiorate)
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{
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frames=30
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seconds=frames/framerate
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silence = Tone(seconds, 440, audiorate, 1, "silence", 1.0)
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tone = Tone(seconds, 440, audiorate, 1, "sine", 1.0)
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silence2 = MonoToStereo(silence, silence)
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left = MonoToStereo(tone, silence)
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right = MonoToStereo(silence, tone)
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leftvid=ImageSource("left-720.png",end = frames, fps=framerate, use_DevIL=true)
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rightvid=ImageSource("right-720.png",end = frames, fps=framerate, use_DevIL=true)
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normalvid=ImageSource("normal-720.png",end = frames, fps=framerate, use_DevIL=true)
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cycle = AudioDub(leftvid,left) ++ AudioDub(normalvid,silence2) ++ AudioDub(rightvid,right) ++ AudioDub(normalvid,silence2)
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final = loop(cycle,times=5)
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final = final.ConvertToYV12()
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final = final.info()
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return final
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}
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