626 lines
23 KiB
Python
626 lines
23 KiB
Python
import json
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import subprocess
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import tempfile
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import unittest
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from concurrent.futures import Future
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from pathlib import Path
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from yt_dlp import YoutubeDL
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from controller.config import ControllerConfig, DownloadConfig, StorageConfig
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from controller.downloads import (
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DownloadManager,
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mp4_export_format_selector,
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safe_export_filename,
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)
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from controller.store import ControllerStore
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class ImmediateExecutor:
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def submit(self, function, *args, **kwargs):
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future = Future()
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try:
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future.set_result(function(*args, **kwargs))
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except BaseException as exc:
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future.set_exception(exc)
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return future
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class QueuedExecutor:
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def __init__(self):
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self.calls = []
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def submit(self, function, *args, **kwargs):
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future = Future()
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self.calls.append((future, function, args, kwargs))
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return future
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class FakeExportRunner:
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def __init__(
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self,
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*,
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video_codec="h264",
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audio_codec="aac",
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pixel_format="yuv420p",
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container="mp4",
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height=1080,
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playlist_items=1,
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fail_download=False,
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):
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self.video_codec = video_codec
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self.audio_codec = audio_codec
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self.pixel_format = pixel_format
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self.container = container
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self.height = height
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self.playlist_items = playlist_items
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self.fail_download = fail_download
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self.calls = []
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def __call__(self, arguments, **kwargs):
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arguments = list(arguments)
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self.calls.append((arguments, dict(kwargs)))
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program = Path(arguments[0]).name
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if program == "yt-dlp-test":
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if self.fail_download:
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raise subprocess.CalledProcessError(9, arguments)
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template = Path(arguments[arguments.index("-o") + 1])
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template.parent.mkdir(parents=True, exist_ok=True)
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if "--audio-format" in arguments:
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extension = "." + arguments[arguments.index("--audio-format") + 1]
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else:
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extension = {
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"mp4": ".mp4",
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"matroska": ".mkv",
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"webm": ".webm",
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}[self.container]
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for index in range(1, self.playlist_items + 1):
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(template.parent / f"{index:03d} - Tést Item {index} [id{index}]{extension}").write_bytes(
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f"source-{index}".encode()
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)
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return subprocess.CompletedProcess(arguments, 0, stdout="", stderr="")
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if program == "ffmpeg":
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Path(arguments[-1]).write_bytes(b"converted")
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return subprocess.CompletedProcess(arguments, 0, stdout="", stderr="")
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if program == "ffprobe":
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path = Path(arguments[-1])
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converted = path.is_file() and path.read_bytes() == b"converted"
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if path.suffix == ".m4a":
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payload = {
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"streams": [{"codec_type": "audio", "codec_name": "aac"}],
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"format": {"format_name": "mov,mp4,m4a,3gp,3g2,mj2"},
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}
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elif path.suffix == ".mp3":
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payload = {
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"streams": [{"codec_type": "audio", "codec_name": "mp3"}],
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"format": {"format_name": "mp3"},
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}
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else:
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payload = {
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"streams": [
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{
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"codec_type": "video",
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"codec_name": "h264" if converted else self.video_codec,
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"pix_fmt": "yuv420p" if converted else self.pixel_format,
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"width": 1920 if self.height == 1080 else 1280,
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"height": self.height,
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},
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{
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"codec_type": "audio",
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"codec_name": "aac" if converted else self.audio_codec,
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},
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],
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"format": {
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"format_name": "mov,mp4,m4a,3gp,3g2,mj2"
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if converted or self.container == "mp4"
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else self.container
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},
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}
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return subprocess.CompletedProcess(
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arguments,
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0,
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stdout=json.dumps(payload),
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stderr="",
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)
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raise AssertionError(f"unexpected command: {arguments!r}")
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@property
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def yt_dlp_calls(self):
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return [arguments for arguments, _ in self.calls if Path(arguments[0]).name == "yt-dlp-test"]
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@property
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def ffmpeg_calls(self):
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return [arguments for arguments, _ in self.calls if Path(arguments[0]).name == "ffmpeg"]
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class UtilityExportTests(unittest.TestCase):
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def setUp(self):
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self.tempdir = tempfile.TemporaryDirectory()
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base = Path(self.tempdir.name)
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self.media = base / "media"
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self.data = base / "data"
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self.config = ControllerConfig(
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storage=StorageConfig(media_base=self.media, data_base=self.data),
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downloads=DownloadConfig(
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yt_dlp_binary="yt-dlp-test",
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cookie_path=None,
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max_workers=1,
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process_timeout_seconds=30,
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max_height=1080,
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export_directory=Path("exports"),
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export_max_height=1080,
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max_queued_exports=5,
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),
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)
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self.store = ControllerStore(self.config.storage).open()
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def tearDown(self):
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self.store.close()
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self.tempdir.cleanup()
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def manager(self, runner, events=None):
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return DownloadManager(
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self.config,
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self.store,
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runner=runner,
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executor=ImmediateExecutor(),
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export_executor=ImmediateExecutor(),
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on_event=(events if events is not None else []).append,
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)
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def assert_player_slots_empty(self):
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self.assertTrue(
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all(slot.media_state == "empty" for slot in self.store.list_slots())
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)
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def test_compatible_mp4_exports_without_slot_or_transcode(self):
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events = []
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runner = FakeExportRunner()
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result = self.manager(runner, events).enqueue_export(
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"https://www.youtube.com/watch?v=one", "mp4", "Alice", "Slides"
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)
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self.assertEqual(result.status, "queued")
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job = self.store.get_export_job(result.job_id)
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self.assertEqual(job.status, "completed")
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self.assertEqual(len(job.output_paths), 1)
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self.assertTrue(job.output_paths[0].startswith(f"exports/video/{result.job_id}/"))
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self.assertTrue(job.output_paths[0].endswith(".mp4"))
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self.assertTrue((self.media / job.output_paths[0]).is_file())
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self.assertEqual(events, [])
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self.assertEqual(runner.ffmpeg_calls, [])
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self.assert_player_slots_empty()
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arguments = runner.yt_dlp_calls[0]
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self.assertIn("--yes-playlist", arguments)
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self.assertIn("--windows-filenames", arguments)
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self.assertIn("--no-overwrites", arguments)
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self.assertEqual(
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arguments[arguments.index("-f") + 1],
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"bv*[height<=1080]+ba/b[height<=1080]",
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)
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self.assertEqual(
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arguments[arguments.index("-S") + 1],
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"res:1080,vcodec:h264,acodec:aac",
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)
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def test_incompatible_mp4_transcodes_only_incompatible_codecs(self):
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runner = FakeExportRunner(
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video_codec="vp9",
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audio_codec="opus",
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pixel_format="yuv420p",
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container="webm",
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)
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result = self.manager(runner).enqueue_export(
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"https://www.youtube.com/watch?v=vp9", "mp4", None, None
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)
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self.assertEqual(self.store.get_export_job(result.job_id).status, "completed")
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self.assertEqual(len(runner.ffmpeg_calls), 1)
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arguments = runner.ffmpeg_calls[0]
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self.assertIn("libx264", arguments)
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self.assertIn("-crf", arguments)
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self.assertEqual(arguments[arguments.index("-crf") + 1], "18")
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self.assertIn("yuv420p", arguments)
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self.assertIn("aac", arguments)
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self.assertIn("192k", arguments)
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self.assertNotIn("-vf", arguments)
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self.assertNotIn("scale", " ".join(arguments))
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self.assert_player_slots_empty()
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def test_compatible_h264_aac_in_other_container_is_remuxed_only(self):
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runner = FakeExportRunner(container="matroska")
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result = self.manager(runner).enqueue_export(
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"https://www.youtube.com/watch?v=mkv", "mp4", None, None
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)
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self.assertEqual(self.store.get_export_job(result.job_id).status, "completed")
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arguments = runner.ffmpeg_calls[0]
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self.assertEqual(arguments[arguments.index("-c:v") + 1], "copy")
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self.assertEqual(arguments[arguments.index("-c:a") + 1], "copy")
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self.assertNotIn("libx264", arguments)
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def test_lower_resolution_mp4_is_preserved_without_scaling(self):
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runner = FakeExportRunner(height=720)
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result = self.manager(runner).enqueue_export(
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"https://www.youtube.com/watch?v=720", "mp4", None, None
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)
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self.assertEqual(self.store.get_export_job(result.job_id).status, "completed")
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self.assertEqual(runner.ffmpeg_calls, [])
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def test_over_height_mp4_is_rejected_even_if_downloader_misbehaves(self):
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runner = FakeExportRunner(height=2160)
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result = self.manager(runner).enqueue_export(
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"https://www.youtube.com/watch?v=2160", "mp4", None, None
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)
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job = self.store.get_export_job(result.job_id)
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self.assertEqual(job.status, "failed")
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self.assertIn("maximum height", job.error)
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self.assertFalse((self.media / "exports" / "video" / result.job_id).exists())
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self.assert_player_slots_empty()
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def test_audio_exports_use_intentional_audio_only_strategies(self):
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for mode, expected_selector in (
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("m4a", "ba/b"),
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("mp3", "ba/b"),
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):
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with self.subTest(mode=mode):
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events = []
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runner = FakeExportRunner()
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result = self.manager(runner, events).enqueue_export(
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f"https://www.youtube.com/watch?v={mode}", mode, None, None
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)
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job = self.store.get_export_job(result.job_id)
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self.assertEqual(job.status, "completed")
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self.assertEqual(len(job.output_paths), 1)
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self.assertTrue(job.output_paths[0].endswith(f".{mode}"))
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arguments = runner.yt_dlp_calls[0]
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self.assertEqual(arguments[arguments.index("-f") + 1], expected_selector)
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self.assertIn("-x", arguments)
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self.assertEqual(
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arguments[arguments.index("--audio-format") + 1], mode
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)
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self.assertEqual(
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arguments[arguments.index("--audio-quality") + 1], "0"
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)
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if mode == "m4a":
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self.assertEqual(
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arguments[arguments.index("-S") + 1],
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"abr,acodec:aac",
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)
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self.assertEqual(runner.ffmpeg_calls, [])
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self.assertEqual(events, [])
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self.assert_player_slots_empty()
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def test_playlist_items_publish_as_individual_collision_safe_files(self):
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runner = FakeExportRunner(playlist_items=3)
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result = self.manager(runner).enqueue_export(
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"https://www.youtube.com/playlist?list=three", "m4a", None, None
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)
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job = self.store.get_export_job(result.job_id)
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self.assertEqual(job.status, "completed")
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self.assertEqual(len(job.output_paths), 3)
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self.assertEqual(len(set(job.output_paths)), 3)
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self.assertTrue(all((self.media / path).is_file() for path in job.output_paths))
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def test_export_failure_and_expiry_never_mutate_player_or_export_files(self):
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slot_one = self.media / "slot1"
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slot_one.mkdir(parents=True)
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protected_file = slot_one / "active.mp4"
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protected_file.write_bytes(b"active")
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failed = self.manager(FakeExportRunner(fail_download=True)).enqueue_export(
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"https://www.youtube.com/watch?v=fail", "mp3", None, None
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)
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self.assertEqual(self.store.get_export_job(failed.job_id).status, "failed")
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self.assertEqual(protected_file.read_bytes(), b"active")
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self.assert_player_slots_empty()
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completed = self.manager(FakeExportRunner()).enqueue_export(
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"https://www.youtube.com/watch?v=keep", "m4a", None, None
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)
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export_path = self.media / self.store.get_export_job(completed.job_id).output_paths[0]
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self.manager(FakeExportRunner()).expire_due_slots()
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self.assertTrue(export_path.is_file())
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self.assertEqual(protected_file.read_bytes(), b"active")
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def test_symlinked_export_root_cannot_redirect_into_player_slot(self):
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slot_one = self.media / "slot1"
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slot_one.mkdir(parents=True)
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protected_file = slot_one / "active.mp4"
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protected_file.write_bytes(b"active")
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(self.media / "exports").symlink_to(slot_one, target_is_directory=True)
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result = self.manager(FakeExportRunner()).enqueue_export(
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"https://www.youtube.com/watch?v=escape", "m4a", None, None
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)
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self.assertEqual(self.store.get_export_job(result.job_id).status, "failed")
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self.assertIn("unsafe export directory", self.store.get_export_job(result.job_id).error)
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self.assertEqual(protected_file.read_bytes(), b"active")
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def test_export_work_uses_dedicated_executor_capacity(self):
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player_executor = QueuedExecutor()
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export_executor = QueuedExecutor()
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manager = DownloadManager(
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self.config,
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self.store,
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runner=FakeExportRunner(),
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executor=player_executor,
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export_executor=export_executor,
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)
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manager.enqueue_export(
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"https://www.youtube.com/watch?v=export", "mp4", None, None
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)
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manager.enqueue(
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"https://www.youtube.com/watch?v=player", None, None
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)
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self.assertEqual(len(export_executor.calls), 1)
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self.assertEqual(len(player_executor.calls), 1)
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def test_restart_reconciles_published_export_and_cleans_manifest(self):
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runner = FakeExportRunner()
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manager = self.manager(runner)
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job_id = "a" * 32
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self.store.reserve_export_job(
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"https://www.youtube.com/watch?v=recover",
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"mp4",
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None,
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None,
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max_active=5,
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job_id=job_id,
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)
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self.store.mark_export_running(job_id)
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self.store.fail_export_job(job_id, "database completion failed")
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work = self.media / "exports" / ".work" / job_id
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published = self.media / "exports" / "video" / job_id
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work.mkdir(parents=True)
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published.mkdir(parents=True)
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filename = "Recovered.mp4"
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(published / filename).write_bytes(b"compatible")
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manager._write_export_manifest(
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work,
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job_id=job_id,
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mode="mp4",
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filenames=[filename],
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)
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manager.reconcile_export_artifacts()
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job = self.store.get_export_job(job_id)
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self.assertEqual(job.status, "completed")
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self.assertEqual(
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job.output_paths,
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(f"exports/video/{job_id}/{filename}",),
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)
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self.assertFalse(work.exists())
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self.assertTrue((published / filename).is_file())
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def test_restart_atomically_publishes_manifested_ready_export(self):
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runner = FakeExportRunner()
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manager = self.manager(runner)
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job_id = "b" * 32
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self.store.reserve_export_job(
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"https://www.youtube.com/watch?v=staged",
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"m4a",
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None,
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None,
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max_active=5,
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job_id=job_id,
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)
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self.store.mark_export_running(job_id)
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self.store.fail_export_job(job_id, "interrupted after conversion")
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work = self.media / "exports" / ".work" / job_id
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ready = work / "ready"
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ready.mkdir(parents=True)
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filename = "Recovered.m4a"
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(ready / filename).write_bytes(b"aac")
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manager._write_export_manifest(
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work,
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job_id=job_id,
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mode="m4a",
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filenames=[filename],
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)
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manager.reconcile_export_artifacts()
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job = self.store.get_export_job(job_id)
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output = self.media / job.output_paths[0]
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self.assertEqual(job.status, "completed")
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self.assertTrue(output.is_file())
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self.assertFalse(work.exists())
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def test_restart_discards_only_known_incomplete_export_staging(self):
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manager = self.manager(FakeExportRunner())
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job_id = "c" * 32
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self.store.reserve_export_job(
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"https://www.youtube.com/watch?v=incomplete",
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"mp3",
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None,
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None,
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max_active=5,
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job_id=job_id,
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)
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self.store.fail_export_job(job_id, "interrupted download")
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work = self.media / "exports" / ".work" / job_id
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work.mkdir(parents=True)
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(work / "partial.part").write_bytes(b"partial")
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unknown = self.media / "exports" / ".work" / ("d" * 32)
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unknown.mkdir()
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(unknown / "operator-file").write_bytes(b"keep")
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manager.reconcile_export_artifacts()
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self.assertFalse(work.exists())
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self.assertTrue((unknown / "operator-file").is_file())
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def test_safe_filename_blocks_traversal_preserves_unicode_and_deduplicates(self):
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used = set()
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first = safe_export_filename(
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"../../slot1/CON:Tést\x00?", ".mp4", used_casefolded=used
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)
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second = safe_export_filename(
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"../../slot1/CON:Tést\x00?", ".mp4", used_casefolded=used
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)
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long_name = safe_export_filename("🎬" * 500, ".mp3")
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self.assertNotIn("/", first)
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self.assertNotIn("\\", first)
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self.assertNotIn("..", Path(first).parts)
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self.assertIn("Tést", first)
|
|
self.assertNotEqual(first.casefold(), second.casefold())
|
|
self.assertTrue(second.endswith(" (2).mp4"))
|
|
self.assertLessEqual(len(Path(long_name).stem.encode("utf-8")), 180)
|
|
|
|
def test_mp4_sorting_keeps_resolution_ahead_of_codec_preference(self):
|
|
formats = [
|
|
{
|
|
"format_id": "av1-1080",
|
|
"url": "https://example.test/av1",
|
|
"ext": "webm",
|
|
"height": 1080,
|
|
"width": 1920,
|
|
"vcodec": "av01.0.08M.08",
|
|
"acodec": "none",
|
|
"tbr": 4000,
|
|
"filesize": 1,
|
|
},
|
|
{
|
|
"format_id": "h264-720",
|
|
"url": "https://example.test/h264",
|
|
"ext": "mp4",
|
|
"height": 720,
|
|
"width": 1280,
|
|
"vcodec": "avc1.64001f",
|
|
"acodec": "none",
|
|
"tbr": 3000,
|
|
"filesize": 1,
|
|
},
|
|
{
|
|
"format_id": "aac",
|
|
"url": "https://example.test/aac",
|
|
"ext": "m4a",
|
|
"vcodec": "none",
|
|
"acodec": "mp4a.40.2",
|
|
"tbr": 128,
|
|
"filesize": 1,
|
|
},
|
|
]
|
|
with YoutubeDL(
|
|
{
|
|
"quiet": True,
|
|
"format_sort": ["res:1080", "vcodec:h264", "acodec:aac"],
|
|
}
|
|
) as ydl:
|
|
info = {"formats": formats}
|
|
ydl.sort_formats(info)
|
|
selector = ydl.build_format_selector(mp4_export_format_selector(1080))
|
|
selected = list(ydl._select_formats(info["formats"], selector))
|
|
|
|
self.assertEqual(selected[0]["height"], 1080)
|
|
self.assertEqual(selected[0]["requested_formats"][0]["format_id"], "av1-1080")
|
|
|
|
def test_mp4_sorting_prefers_native_h264_aac_at_equal_quality(self):
|
|
formats = [
|
|
{
|
|
"format_id": "vp9-1080",
|
|
"url": "https://example.test/vp9",
|
|
"ext": "webm",
|
|
"height": 1080,
|
|
"width": 1920,
|
|
"vcodec": "vp9",
|
|
"acodec": "none",
|
|
"tbr": 4200,
|
|
"filesize": 1,
|
|
},
|
|
{
|
|
"format_id": "h264-1080",
|
|
"url": "https://example.test/h264",
|
|
"ext": "mp4",
|
|
"height": 1080,
|
|
"width": 1920,
|
|
"vcodec": "avc1.640028",
|
|
"acodec": "none",
|
|
"tbr": 4000,
|
|
"filesize": 1,
|
|
},
|
|
{
|
|
"format_id": "opus",
|
|
"url": "https://example.test/opus",
|
|
"ext": "webm",
|
|
"vcodec": "none",
|
|
"acodec": "opus",
|
|
"tbr": 160,
|
|
"filesize": 1,
|
|
},
|
|
{
|
|
"format_id": "aac",
|
|
"url": "https://example.test/aac",
|
|
"ext": "m4a",
|
|
"vcodec": "none",
|
|
"acodec": "mp4a.40.2",
|
|
"tbr": 128,
|
|
"filesize": 1,
|
|
},
|
|
]
|
|
with YoutubeDL(
|
|
{
|
|
"quiet": True,
|
|
"format_sort": ["res:1080", "vcodec:h264", "acodec:aac"],
|
|
}
|
|
) as ydl:
|
|
info = {"formats": formats}
|
|
ydl.sort_formats(info)
|
|
selector = ydl.build_format_selector(mp4_export_format_selector(1080))
|
|
selected = list(ydl._select_formats(info["formats"], selector))
|
|
|
|
self.assertEqual(
|
|
[item["format_id"] for item in selected[0]["requested_formats"]],
|
|
["h264-1080", "aac"],
|
|
)
|
|
|
|
def test_m4a_sorting_keeps_audio_quality_ahead_of_native_aac_preference(self):
|
|
formats = [
|
|
{
|
|
"format_id": "aac-low",
|
|
"url": "https://example.test/aac-low",
|
|
"ext": "m4a",
|
|
"vcodec": "none",
|
|
"acodec": "mp4a.40.2",
|
|
"abr": 48,
|
|
"tbr": 48,
|
|
"filesize": 1,
|
|
},
|
|
{
|
|
"format_id": "opus-high",
|
|
"url": "https://example.test/opus-high",
|
|
"ext": "webm",
|
|
"vcodec": "none",
|
|
"acodec": "opus",
|
|
"abr": 160,
|
|
"tbr": 160,
|
|
"filesize": 1,
|
|
},
|
|
]
|
|
with YoutubeDL(
|
|
{"quiet": True, "format_sort": ["abr", "acodec:aac"]}
|
|
) as ydl:
|
|
info = {"formats": formats}
|
|
ydl.sort_formats(info)
|
|
selected = list(
|
|
ydl._select_formats(
|
|
info["formats"],
|
|
ydl.build_format_selector("ba/b"),
|
|
)
|
|
)
|
|
|
|
self.assertEqual(selected[0]["format_id"], "opus-high")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|