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examples: Fix Python coding style

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This commit is contained in:
Roland Dobai
2018-12-04 08:32:48 +01:00
parent a36d714d1a
commit 57c54f96f1
36 changed files with 645 additions and 561 deletions
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15
examples/peripherals/i2s_adc_dac/tools/generate_audio_file.py
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@@ -4,6 +4,7 @@ import os
import wave
import struct
def get_wave_array_str(filename, target_bits):
wave_read = wave.open(filename, "r")
array_str = ""
@@ -13,28 +14,30 @@ def get_wave_array_str(filename, target_bits):
val, = struct.unpack("<H", wave_read.readframes(1))
scale_val = (1 << target_bits) - 1
cur_lim = (1 << sampwidth) - 1
#scale current data to 8-bit data
# scale current data to 8-bit data
val = val * scale_val / cur_lim
val = int(val + ((scale_val + 1) // 2)) & scale_val
array_str += "0x%x, "%(val)
array_str += "0x%x, " % (val)
if (i + 1) % 16 == 0:
array_str += "\n"
return array_str
def gen_wave_table(wav_file_list, target_file_name, scale_bits = 8):
def gen_wave_table(wav_file_list, target_file_name, scale_bits=8):
with open(target_file_name, "w") as audio_table:
print('#include <stdio.h>', file=audio_table)
print('const unsigned char audio_table[] = {', file=audio_table)
for wav in wav_file_list:
print("processing: {}".format(wav))
print(get_wave_array_str(filename = wav, target_bits = scale_bits), file=audio_table)
print(get_wave_array_str(filename=wav, target_bits=scale_bits), file=audio_table)
print('};\n', file=audio_table)
print("Done...")
if __name__=='__main__':
if __name__ == '__main__':
print("Generating audio array...")
wav_list = []
for filename in os.listdir("./"):
if filename.endswith(".wav"):
wav_list.append(filename)
gen_wave_table(wav_file_list = wav_list, target_file_name = "audio_example_file.h")
gen_wave_table(wav_file_list=wav_list, target_file_name="audio_example_file.h")