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#!/usr/bin/env python3
import argparse
import os
import struct
import subprocess
import sys
import wave
from pathlib import Path
UTF8_STEM = "\u00e9-\u5165\u529b-\u0442\u0435\u0441\u0442"
def write_wav(path, samples=2048):
path.parent.mkdir(parents=True, exist_ok=True)
with wave.open(str(path), "wb") as wav:
wav.setnchannels(1)
wav.setsampwidth(2)
wav.setframerate(44100)
wav.writeframes(struct.pack("<{}h".format(samples), *([0] * samples)))
def run_command(args):
return subprocess.run(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
def decode(data):
return data.decode("utf-8", errors="replace")
def fail(message, proc=None):
print(message, file=sys.stderr)
if proc is not None:
print("exit code: {}".format(proc.returncode), file=sys.stderr)
print("stdout:\n{}".format(decode(proc.stdout)), file=sys.stderr)
print("stderr:\n{}".format(decode(proc.stderr)), file=sys.stderr)
sys.exit(1)
def require_output_file(path, proc, message):
if not path.exists() or os.path.getsize(str(path)) == 0:
fail(message, proc)
def encode(exe, in_file, out_file, codec, container=None):
args = [
str(exe),
"-e", codec,
"--nostdout",
"-i", str(in_file),
"-o", str(out_file),
]
if container is not None:
args.extend(["--container", container])
return run_command(args)
def decode_atrac1(exe, in_file, out_file):
return run_command([
str(exe),
"-d",
"--nostdout",
"-i", str(in_file),
"-o", str(out_file),
])
def check_missing_input(exe, work_dir):
missing = work_dir / "missing-input.wav"
out_file = work_dir / "missing-output.oma"
proc = encode(exe, missing, out_file, "atrac3")
if proc.returncode == 0:
fail("encoding unexpectedly succeeded with a missing input file", proc)
combined = decode(proc.stdout) + decode(proc.stderr)
combined_lower = combined.lower()
if "unsupported sample rate" in combined_lower:
fail("missing input file was reported as unsupported sample rate", proc)
if "unable to open input file" not in combined_lower:
fail("missing input file error does not explain open failure", proc)
if missing.name not in combined:
fail("missing input file error does not include the input path", proc)
def check_utf8_input(exe, work_dir):
in_file = work_dir / ("utf8-input-" + UTF8_STEM + ".wav")
out_file = work_dir / "utf8-output.oma"
write_wav(in_file)
proc = encode(exe, in_file, out_file, "atrac3")
if proc.returncode != 0:
fail("encoding failed with a UTF-8 input filename", proc)
require_output_file(out_file, proc, "encoding with a UTF-8 input filename did not create output")
def check_utf8_atrac1_input(exe, work_dir):
in_file = work_dir / ("utf8-input-atrac1-" + UTF8_STEM + ".wav")
out_file = work_dir / "utf8-input-atrac1-output.aea"
write_wav(in_file, samples=8192)
proc = encode(exe, in_file, out_file, "atrac1")
if proc.returncode != 0:
fail("ATRAC1 encoding failed with a UTF-8 input filename", proc)
require_output_file(out_file, proc, "ATRAC1 encoding with a UTF-8 input filename did not create output")
def check_utf8_output(exe, work_dir, suffix):
in_file = work_dir / "utf8-output-input.wav"
out_file = work_dir / ("utf8-output-" + UTF8_STEM + suffix)
write_wav(in_file)
proc = encode(exe, in_file, out_file, "atrac3")
if proc.returncode != 0:
fail("encoding failed with a UTF-8 output filename ({})".format(suffix), proc)
require_output_file(
out_file,
proc,
"encoding with a UTF-8 output filename ({}) did not create output".format(suffix))
def check_utf8_atrac1_output(exe, work_dir):
in_file = work_dir / "utf8-output-atrac1-input.wav"
out_file = work_dir / ("utf8-output-atrac1-" + UTF8_STEM + ".aea")
write_wav(in_file, samples=8192)
proc = encode(exe, in_file, out_file, "atrac1")
if proc.returncode != 0:
fail("ATRAC1 encoding failed with a UTF-8 output filename", proc)
require_output_file(out_file, proc, "ATRAC1 encoding with a UTF-8 output filename did not create output")
def create_atrac1_file(exe, in_file, encoded_file):
write_wav(in_file, samples=8192)
proc = encode(exe, in_file, encoded_file, "atrac1")
if proc.returncode != 0:
fail("failed to create ATRAC1 fixture", proc)
require_output_file(encoded_file, proc, "ATRAC1 fixture was not created")
def check_utf8_decode_input(exe, work_dir):
wav_file = work_dir / "utf8-decode-input-source.wav"
encoded_file = work_dir / ("utf8-decode-input-" + UTF8_STEM + ".aea")
out_file = work_dir / "utf8-decode-input-output.wav"
create_atrac1_file(exe, wav_file, encoded_file)
proc = decode_atrac1(exe, encoded_file, out_file)
if proc.returncode != 0:
fail("ATRAC1 decoding failed with a UTF-8 input filename", proc)
require_output_file(out_file, proc, "ATRAC1 decoding with a UTF-8 input filename did not create output")
def check_utf8_decode_output(exe, work_dir):
wav_file = work_dir / "utf8-decode-output-source.wav"
encoded_file = work_dir / "utf8-decode-output-input.aea"
out_file = work_dir / ("utf8-decode-output-" + UTF8_STEM + ".wav")
create_atrac1_file(exe, wav_file, encoded_file)
proc = decode_atrac1(exe, encoded_file, out_file)
if proc.returncode != 0:
fail("ATRAC1 decoding failed with a UTF-8 output filename", proc)
require_output_file(out_file, proc, "ATRAC1 decoding with a UTF-8 output filename did not create output")
def check_explicit_container(exe, work_dir):
in_file = work_dir / "explicit-container-input.wav"
write_wav(in_file, samples=8192)
riff_out = work_dir / "explicit-riff-output.oma"
proc = encode(exe, in_file, riff_out, "atrac3", container="riff")
if proc.returncode != 0:
fail("ATRAC3 encoding failed with explicit RIFF container", proc)
require_output_file(riff_out, proc, "explicit RIFF container did not create output")
with riff_out.open("rb") as stream:
if stream.read(4) != b"RIFF":
fail("explicit RIFF container did not override the .oma extension", proc)
raw_out = work_dir / "explicit-raw-output.aea"
proc = encode(exe, in_file, raw_out, "atrac1", container="raw")
if proc.returncode != 0:
fail("ATRAC1 encoding failed with explicit RAW container", proc)
require_output_file(raw_out, proc, "explicit RAW container did not create output")
invalid_atrac1 = work_dir / "invalid-atrac1.oma"
proc = encode(exe, in_file, invalid_atrac1, "atrac1", container="oma")
if proc.returncode == 0:
fail("ATRAC1 encoding unexpectedly accepted OMA container", proc)
if "container oma is not supported for atrac1" not in (decode(proc.stdout) + decode(proc.stderr)).lower():
fail("ATRAC1 invalid container error did not explain the rejected combination", proc)
invalid_atrac3plus = work_dir / "invalid-atrac3plus.rm"
proc = encode(exe, in_file, invalid_atrac3plus, "atrac3plus", container="rm")
if proc.returncode == 0:
fail("ATRAC3PLUS encoding unexpectedly accepted RM container", proc)
if "container rm is not supported for atrac3plus" not in (decode(proc.stdout) + decode(proc.stderr)).lower():
fail("ATRAC3PLUS invalid container error did not explain the rejected combination", proc)
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--exe", required=True)
parser.add_argument("--work-dir", required=True)
parser.add_argument("--case", required=True, choices=[
"missing-input",
"utf8-input",
"utf8-input-atrac1",
"utf8-output-oma",
"utf8-output-at3",
"utf8-output-rm",
"utf8-output-aea",
"utf8-decode-input",
"explicit-container",
"utf8-decode-output",
])
args = parser.parse_args()
exe = Path(args.exe)
work_dir = Path(args.work_dir)
work_dir.mkdir(parents=True, exist_ok=True)
if args.case == "missing-input":
check_missing_input(exe, work_dir)
elif args.case == "utf8-input":
check_utf8_input(exe, work_dir)
elif args.case == "utf8-input-atrac1":
check_utf8_atrac1_input(exe, work_dir)
elif args.case == "utf8-output-oma":
check_utf8_output(exe, work_dir, ".oma")
elif args.case == "utf8-output-at3":
check_utf8_output(exe, work_dir, ".at3")
elif args.case == "utf8-output-rm":
check_utf8_output(exe, work_dir, ".rm")
elif args.case == "utf8-output-aea":
check_utf8_atrac1_output(exe, work_dir)
elif args.case == "utf8-decode-input":
check_utf8_decode_input(exe, work_dir)
elif args.case == "utf8-decode-output":
check_utf8_decode_output(exe, work_dir)
elif args.case == "explicit-container":
check_explicit_container(exe, work_dir)
if __name__ == "__main__":
main()
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