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py3ize pcm

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This commit is contained in:
Eevee (Lexy Munroe) 2016-08-24 16:15:40 -07:00
parent 39c0d6d94b
commit 82f9226df7
1 changed files with 7 additions and 4 deletions
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11
pokemontools/pcm.py
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@ -1,5 +1,8 @@
# pcm.py # pcm.py
# Converts between .wav files and 1-bit pcm data. (pcm = pulse-code modulation) # Converts between .wav files and 1-bit pcm data. (pcm = pulse-code modulation)
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import argparse import argparse
import os import os
@ -72,7 +75,7 @@ def convert_to_pcm(filenames=[]):
# Pack the 1-bit samples together. # Pack the 1-bit samples together.
packed_samples = bytearray() packed_samples = bytearray()
for i in xrange(0, len(clamped_samples), 8): for i in range(0, len(clamped_samples), 8):
# Read 8 pcm values to pack one byte. # Read 8 pcm values to pack one byte.
packed_value = 0 packed_value = 0
for j in range(8): for j in range(8):
@ -103,7 +106,7 @@ def get_wav_samples(filename):
# Unpack the values based on the sample byte width. # Unpack the values based on the sample byte width.
unpacked_samples = [] unpacked_samples = []
for i in xrange(0, len(samples), sample_width): for i in range(0, len(samples), sample_width):
if sample_width == 1: if sample_width == 1:
fmt = 'B' fmt = 'B'
elif sample_width == 2: elif sample_width == 2:
@ -122,7 +125,7 @@ def get_wav_samples(filename):
# Also find the average amplitude of the samples. # Also find the average amplitude of the samples.
resampled_samples = [] resampled_samples = []
total_value = 0 total_value = 0
interval = float(sample_rate) / BASE_SAMPLE_RATE interval = sample_rate / BASE_SAMPLE_RATE
index = 0 index = 0
while index < sample_count: while index < sample_count:
sample = unpacked_samples[int(index)] sample = unpacked_samples[int(index)]
@ -131,7 +134,7 @@ def get_wav_samples(filename):
resampled_samples.append(sample) resampled_samples.append(sample)
index += interval index += interval
average_sample = float(total_value) / len(resampled_samples) average_sample = total_value / len(resampled_samples)
return resampled_samples, average_sample return resampled_samples, average_sample