def decode_at3(input, sample_rate, channels):
data = bytearray(open(input, "rb").read())
wav_header = bytearray()
wav_header += bytearray("RIFF", "ascii")
wav_header += int.to_bytes(len(data) + 0x3c, length=4, byteorder="little")
wav_header += bytearray("WAVE", "ascii")
wav_header += bytearray("fmt ", "ascii")
wav_header += int.to_bytes(0x20, length=4, byteorder="little")
format_id = 0x270
byte_rate = 0x4099
block_align = 0x180
bits_per_sample = 0
wav_header += int.to_bytes(format_id, length=2, byteorder="little")
wav_header += int.to_bytes(channels, length=2, byteorder="little")
wav_header += int.to_bytes(sample_rate, length=4, byteorder="little")
wav_header += int.to_bytes(byte_rate, length=4, byteorder="little")
wav_header += int.to_bytes(block_align, length=2, byteorder="little")
wav_header += int.to_bytes(bits_per_sample, length=2, byteorder="little")
wav_header += int.to_bytes(0x0e, length=2, byteorder="little")
wav_header += int.to_bytes(0x01, length=2, byteorder="little")
wav_header += int.to_bytes(0x1000, length=2, byteorder="little")
wav_header += int.to_bytes(0x00, length=2, byteorder="little")
wav_header += int.to_bytes(0x00, length=4, byteorder="little")
wav_header += int.to_bytes(0x01, length=4, byteorder="little")
wav_header += bytearray("data", "ascii")
wav_header += int.to_bytes(len(data), length=4, byteorder="little")
wav_header += data
tmp_filename = tmpfile.mkstemp(suffix=".at3")
with open(tmp_filename, "wb") as outfile:
outfile.write(wav_header)
sound = audio.get_audio_file(tmp_filename)
tmpfile.tmpcleanup()
return sound
bgms = [x for x in filenames_bgm if x.endswith("d__k.bin")]
if len(bgms) == 0:
bgms = [x for x in filenames_bgm if x.endswith("d_bk.bin")]
drum_bgm = bgms[0] if len(bgms) > 0 else None
drum_bgm_out = drum_bgm.replace(".bin", ".wav") if len(bgms) > 0 else None
# Get guitar+bass BGM
bgms = [x for x in filenames_bgm if x.endswith("_gbk.bin")]
guitar_bgm = bgms[0] if len(bgms) > 0 else None
guitar_bgm_out = guitar_bgm.replace(".bin", ".wav") if len(bgms) > 0 else None
if args.mix_phase and not base_bgm:
print("Couldn't find base BGM")
tmpfile.tmpcleanup()
exit(1)
if not drum_bgm:
print("Couldn't find drum BGM")
tmpfile.tmpcleanup()
exit(1)
if not guitar_bgm:
print("Couldn't find guitar BGM")
tmpfile.tmpcleanup()
exit(1)
tmpfile.add_temp_file(drum_bgm_out)
tmpfile.add_temp_file(guitar_bgm_out)