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40 lines
1.3 KiB
40 lines
1.3 KiB
#!/usr/bin/env python3 |
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# |
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# Copyright 2019 Jack Humbert |
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# |
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# This program is free software: you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation, either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# 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 |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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# |
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import wave, struct, sys |
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waveFile = wave.open(sys.argv[1], 'r') |
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length = waveFile.getnframes() |
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out = "#define DAC_WAVETABLE_CUSTOM_LENGTH " + str(int(length / 256)) + "\n\n" |
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out += "static const dacsample_t dac_wavetable_custom[" + str(int(length / 256)) + "][256] = {" |
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for i in range(0,length): |
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if (i % 8 == 0): |
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out += "\n " |
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if (i % 256 == 0): |
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out = out[:-2] |
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out += "{\n " |
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waveData = waveFile.readframes(1) |
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data = struct.unpack("<h", waveData) |
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out += str(int((int(data[0]) + 0x8000) / 16)) + ", " |
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if (i % 256 == 255): |
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out = out[:-2] |
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out += "\n }," |
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out = out[:-1] |
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out += "\n};" |
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print(out)
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