summaryrefslogtreecommitdiff
path: root/util/wavetable_parser.py
diff options
context:
space:
mode:
Diffstat (limited to 'util/wavetable_parser.py')
-rwxr-xr-xutil/wavetable_parser.py40
1 files changed, 40 insertions, 0 deletions
diff --git a/util/wavetable_parser.py b/util/wavetable_parser.py
new file mode 100755
index 0000000000..be0f01f7b4
--- /dev/null
+++ b/util/wavetable_parser.py
@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019 Jack Humbert
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import wave, struct, sys
+
+waveFile = wave.open(sys.argv[1], 'r')
+
+length = waveFile.getnframes()
+out = "#define DAC_WAVETABLE_CUSTOM_LENGTH " + str(int(length / 256)) + "\n\n"
+out += "static const dacsample_t dac_wavetable_custom[" + str(int(length / 256)) + "][256] = {"
+for i in range(0,length):
+ if (i % 8 == 0):
+ out += "\n "
+ if (i % 256 == 0):
+ out = out[:-2]
+ out += "{\n "
+ waveData = waveFile.readframes(1)
+ data = struct.unpack("<h", waveData)
+ out += str(int((int(data[0]) + 0x8000) / 16)) + ", "
+ if (i % 256 == 255):
+ out = out[:-2]
+ out += "\n },"
+out = out[:-1]
+out += "\n};"
+print(out)