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annotate bin/musicPad @ 2418:9bb0eb587d5b

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640x480 camera res
author drewp@bigasterisk.com
date Tue, 21 May 2024 11:58:13 -0700
parents 64eeba960168
children
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d8202a0a7fd5 fix up musicpad and wavecurve. ascoltami2 can now use relative paths in the config
Drew Perttula <drewp@bigasterisk.com>
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1 #!bin/python
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2 """
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3 rewrite all the songs with silence at the start and end
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4 """
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5 import sys, wave, logging, os
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6 sys.path.append(".")
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drewp@bigasterisk.com
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7 from light9 import showconfig
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94039df5cdd9 create Playlist class which is now used in wavecurve, musicPad, and ascoltami2.
David McClosky <dmcc@bigasterisk.com>
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8 from light9.ascoltami.playlist import Playlist
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9 logging.basicConfig(level=logging.INFO)
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10 log = logging.getLogger()
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11
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12 introPad = 4
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13 postPad = 9 # 5 + autostop + 4
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14
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15 playlist = Playlist.fromShow(showconfig.getGraph(), showconfig.showUri())
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16 for p in playlist.allSongPaths():
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17 log.info("read %s", p)
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18 inputWave = wave.open(p, 'rb')
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19
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20 outputDir = os.path.join(os.path.dirname(p), "pad")
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21 try:
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22 os.makedirs(outputDir)
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23 except OSError:
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24 pass # exists
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25 outputPath = os.path.join(outputDir, os.path.basename(p))
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26 outputWave = wave.open(outputPath, 'wb')
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27 outputWave.setparams(inputWave.getparams())
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28
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29 bytesPerSecond = (inputWave.getnchannels() * inputWave.getsampwidth() *
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30 inputWave.getframerate())
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31
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32 outputWave.writeframesraw(b"\x00" * (bytesPerSecond * introPad))
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33 outputWave.writeframesraw(inputWave.readframes(inputWave.getnframes()))
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34 outputWave.writeframesraw(b"\x00" * (bytesPerSecond * postPad))
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35 outputWave.close()
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36 log.info("wrote %s", outputPath)