DRMLab/Vinetrimmer/scripts/netflix_hidden_subs_example.py
2026-02-07 19:39:32 +02:00

145 lines
6.6 KiB
Python

from vinetrimmer.objects.tracks import Tracks
from vinetrimmer.utils.widevine.device import LocalDevice
def _hydrate_hidden_tracks(self, title, manifest, tracks, license_url):
"""
Hydrate hidden audio and subtitle tracks.
Netflix does not include all download URLs for audio/subtitle tracks in the initial manifest for performance optimization.
This method sequentially requests these hidden tracks.
"""
from itertools import zip_longest
# Collect unhydrated audio tracks
unavailable_audio_tracks = []
for audio in manifest.get("audio_tracks", []):
if len(audio.get("streams", [])) == 0:
# Audio is available but has no stream information
self.log.info(f"Found hidden audio track: {audio.get('languageDescription', 'Unknown')}")
unavailable_audio_tracks.append((
audio.get("new_track_id"),
audio.get("id")
))
# Collect unhydrated subtitle tracks
unavailable_subtitle_tracks = []
for subtitle in manifest.get("timedtexttracks", []):
if subtitle.get("isNoneTrack"):
continue
if subtitle.get("hydrated") == False:
# Subtitle is not hydrated
# self.log.info(f"Found hidden subtitle track: {subtitle.get('languageDescription', 'Unknown')}")
unavailable_subtitle_tracks.append((
subtitle.get("new_track_id"),
subtitle.get("id")
))
if not unavailable_audio_tracks and not unavailable_subtitle_tracks:
self.log.info("No hidden audio or subtitle tracks found")
return
self.log.info(f"Fetching {len(unavailable_audio_tracks)} hidden audio track(s) and {len(unavailable_subtitle_tracks)} hidden subtitle track(s)...")
# Hydrate hidden tracks one by one
for audio_info, subtitle_info in zip_longest(
unavailable_audio_tracks,
unavailable_subtitle_tracks,
fillvalue=(None, None)
):
audio_track_id, audio_id = audio_info if audio_info[0] else (None, None)
subtitle_track_id, subtitle_id = subtitle_info if subtitle_info[0] else (None, None)
try:
# Request specific hidden track
hydrated_manifest = self.get_manifest(
title,
self.profiles,
required_audio_track_id=audio_track_id,
required_text_track_id=subtitle_track_id
)
# Parse hydrated tracks
hydrated_tracks = self.manifest_as_tracks(hydrated_manifest)
# Add audio track
if audio_track_id:
for audio in manifest.get("audio_tracks", []):
if audio.get("id") == audio_id:
for track in hydrated_tracks.audio:
if track.encrypted:
track.extra["license_url"] = license_url
tracks.add(track, warn_only=True)
# self.log.info(f"Added hidden audio track: {track.language}")
break
# Add subtitle track
if subtitle_track_id:
for subtitle in manifest.get("timedtexttracks", []):
if subtitle.get("id") == subtitle_id:
for track in hydrated_tracks.subtitles:
tracks.add(track, warn_only=True)
# self.log.info(f"Added hidden subtitle track: {track.language}")
break
except Exception as e:
self.log.warning(f"Error hydrating hidden track: {e}")
continue
def get_tracks(self, title):
if self.vcodec == "H264":
# If H.264, get both MPL and HPL tracks as they alternate in terms of bitrate
tracks = Tracks()
self.config["profiles"]["video"]["H264"]["MPL+HPL+QC"] = (
self.config["profiles"]["video"]["H264"]["MPL"] + self.config["profiles"]["video"]["H264"]["HPL"] +
self.config["profiles"]["video"]["H264"]["QC"]
)
if self.audio_only or self.subs_only or self.chapters_only:
profiles = ["MPL+HPL+QC"]
else:
profiles = self.profile.split("+")
for profile in profiles:
try:
manifest = self.get_manifest(title, self.config["profiles"]["video"]["H264"][profile])
except:
manifest = self.get_manifest(title, self.config["profiles"]["video"]["H264"]["MPL"] +
self.config["profiles"]["video"]["H264"]["HPL"])
manifest_tracks = self.manifest_as_tracks(manifest)
license_url = manifest["links"]["license"]["href"]
if self.cdm.device.security_level == 3 and self.cdm.device.type == LocalDevice.Types.CHROME:
self.cdm.uuid = self.cdm.chrome_uuid
self.cdm.urn = f"urn:uuid:{self.cdm.uuid}"
max_quality = max(x.height for x in manifest_tracks.videos)
# if profile == "MPL" and max_quality >= 720:
# manifest_sd = self.get_manifest(title, self.config["profiles"]["video"]["H264"]["BPL"])
# license_url_sd = manifest_sd["links"]["license"]["href"]
# if "SD_LADDER" in manifest_sd["video_tracks"][0]["streams"][0]["tags"]:
# # SD manifest is new encode encrypted with different keys that won't work for HD
# continue
# license_url = license_url_sd
if profile == "HPL" and max_quality >= 1080:
if "SEGMENT_MAP_2KEY" in manifest["video_tracks"][0]["streams"][0]["tags"]:
# 1080p license restricted from Android L3, 720p license will work for 1080p
manifest_720 = self.get_manifest(
title, [x for x in self.config["profiles"]["video"]["H264"]["HPL"] if "l40" not in x]
)
license_url = manifest_720["links"]["license"]["href"]
else:
# Older encode, can't use 720p keys for 1080p
continue
for track in manifest_tracks:
if track.encrypted:
track.extra["license_url"] = license_url
# Fix PSSH with correct KID
# track.pssh.init_data = b'\x08\x01\x12\x10' + bytes.fromhex(track.kid)
tracks.add(manifest_tracks, warn_only=True)
# Hydrate hidden audio and subtitle tracks (using the last manifest)
_hydrate_hidden_tracks(title, manifest, tracks, license_url)
return tracks
else:
pass