chore: bump version to 1.4.8

Revert the warnings filter added in 2d5e807 as it didn't work as expected to suppress the tinycss SyntaxWarning. Also fix isort order in prd.py for pyplayready imports.

CHANGELOG.md

@@ -5,6 +5,80 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.4.8] - 2025-10-08
+
+### Added
+
+- **Exact Language Matching**: New `--exact-lang` flag for precise language matching
+  - Enables strict language code matching without fallbacks
+- **No-Mux Flag**: New `--no-mux` flag to skip muxing tracks into container files
+  - Useful for keeping individual track files separate
+- **DecryptLabs API Integration for HTTP Vault**: Enhanced vault support
+  - Added DecryptLabs API support to HTTP vault for improved key retrieval
+- **AC4 Audio Codec Support**: Enhanced audio format handling
+  - Added AC4 codec support in Audio class with updated mime/profile handling
+- **pysubs2 Subtitle Conversion**: Extended subtitle format support
+  - Added pysubs2 subtitle conversion with extended format support
+  - Configurable conversion method in configuration
+
+### Changed
+
+- **Audio Track Sorting**: Optimized audio track selection logic
+  - Improved audio track sorting by grouping descriptive tracks and sorting by bitrate
+  - Better identification of ATMOS and DD+ as highest quality for filenaming
+- **pyplayready Update**: Upgraded to version 0.6.3
+  - Updated import paths to resolve compatibility issues
+  - Fixed lxml constraints for better dependency management
+- **pysubs2 Conversion Method**: Moved from auto to manual configuration
+  - pysubs2 no longer auto-selected during testing phase
+
+### Fixed
+
+- **Remote CDM**: Fixed curl_cffi compatibility
+  - Added curl_cffi to instance checks in RemoteCDM
+- **Temporary File Handling**: Improved encoding handling
+  - Specified UTF-8 encoding when opening temporary files
+
+### Reverted
+
+- **tinycss SyntaxWarning Suppression**: Removed ineffective warning filter
+  - Reverted warnings filter that didn't work as expected for suppressing tinycss warnings
+
+## [1.4.7] - 2025-09-25
+
+### Added
+
+- **curl_cffi Session Support**: Enhanced anti-bot protection with browser impersonation
+  - Added new session utility with curl_cffi support for bypassing anti-bot measures
+  - Browser impersonation support for Chrome, Firefox, and Safari user agents
+  - Full backward compatibility with requests.Session maintained
+  - Suppressed HTTPS proxy warnings for improved user experience
+- **Download Retry Functionality**: Configurable retry mechanism for failed downloads
+  - Added retry count option to download function for improved reliability
+- **Subtitle Requirements Options**: Enhanced subtitle download control
+  - Added options for required subtitles in download command
+  - Better control over subtitle track selection and requirements
+- **Quality Selection Enhancement**: Improved quality selection options
+  - Added best available quality option in download command for optimal track selection
+- **DecryptLabs API Integration**: Enhanced remote CDM configuration
+  - Added decrypt_labs_api_key to Config initialization for better API integration
+
+### Changed
+
+- **Manifest Parser Updates**: Enhanced compatibility across all parsers
+  - Updated DASH, HLS, ISM, and M3U8 parsers to accept curl_cffi sessions
+  - Improved cookie handling compatibility between requests and curl_cffi
+- **Logging Improvements**: Reduced log verbosity for better user experience
+  - Changed duplicate track log level to debug to reduce console noise
+  - Dynamic CDM selection messages moved to debug-only output
+
+### Fixed
+
+- **Remote CDM Reuse**: Fixed KeyError in dynamic CDM selection
+  - Prevents KeyError when reusing remote CDMs in dynamic selection process
+  - Creates copy of CDM dictionary before modification to prevent configuration mutation
+  - Allows same CDM to be selected multiple times within session without errors
+
 ## [1.4.6] - 2025-09-13
 
 ### Added

CONFIG.md

@@ -656,11 +656,12 @@ Control subtitle conversion and SDH (hearing-impaired) stripping behavior.
   - `subby`: Always use subby with CommonIssuesFixer.
   - `subtitleedit`: Prefer SubtitleEdit when available; otherwise fallback to standard conversion.
   - `pycaption`: Use only the pycaption library (no SubtitleEdit, no subby).
+  - `pysubs2`: Use pysubs2 library (supports SRT, SSA, ASS, WebVTT, TTML, SAMI, MicroDVD, MPL2, TMP formats).
 
 - `sdh_method`: How to strip SDH cues. Default: `auto`.
   - `auto`: Try subby for SRT first, then SubtitleEdit, then filter-subs.
-  - `subby`: Use subby’s SDHStripper (SRT only).
-  - `subtitleedit`: Use SubtitleEdit’s RemoveTextForHI when available.
+  - `subby`: Use subby's SDHStripper (SRT only).
+  - `subtitleedit`: Use SubtitleEdit's RemoveTextForHI when available.
   - `filter-subs`: Use the subtitle-filter library.
 
 Example:

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "unshackle"
-version = "1.4.6"
+version = "1.4.8"
 description = "Modular Movie, TV, and Music Archival Software."
 authors = [{ name = "unshackle team" }]
 requires-python = ">=3.10,<3.13"
@@ -33,7 +33,7 @@ dependencies = [
     "crccheck>=1.3.0,<2",
     "jsonpickle>=3.0.4,<4",
     "langcodes>=3.4.0,<4",
-    "lxml>=5.2.1,<6",
+    "lxml>=5.2.1,<7",
     "pproxy>=2.7.9,<3",
     "protobuf>=4.25.3,<5",
     "pycaption>=2.2.6,<3",
@@ -54,10 +54,11 @@ dependencies = [
     "urllib3>=2.2.1,<3",
     "chardet>=5.2.0,<6",
     "curl-cffi>=0.7.0b4,<0.8",
-    "pyplayready>=0.6.0,<0.7",
+    "pyplayready>=0.6.3,<0.7",
     "httpx>=0.28.1,<0.29",
     "cryptography>=45.0.0",
     "subby",
+    "pysubs2>=1.7.0,<2",
 ]
 
 [project.urls]
@@ -113,4 +114,4 @@ no_implicit_optional = true
 
 [tool.uv.sources]
 unshackle = { workspace = true }
-subby = { git = "https://github.com/vevv/subby.git" }
+subby = { git = "https://github.com/vevv/subby.git", rev = "5a925c367ffb3f5e53fd114ae222d3be1fdff35d" }

unshackle/commands/dl.py

@@ -173,7 +173,19 @@ class dl:
         help="Language wanted for Audio, overrides -l/--lang for audio tracks.",
     )
     @click.option("-sl", "--s-lang", type=LANGUAGE_RANGE, default=["all"], help="Language wanted for Subtitles.")
+    @click.option(
+        "--require-subs",
+        type=LANGUAGE_RANGE,
+        default=[],
+        help="Required subtitle languages. Downloads all subtitles only if these languages exist. Cannot be used with --s-lang.",
+    )
     @click.option("-fs", "--forced-subs", is_flag=True, default=False, help="Include forced subtitle tracks.")
+    @click.option(
+        "--exact-lang",
+        is_flag=True,
+        default=False,
+        help="Use exact language matching (no variants). With this flag, -l es-419 matches ONLY es-419, not es-ES or other variants.",
+    )
     @click.option(
         "--proxy",
         type=str,
@@ -207,7 +219,7 @@ class dl:
     @click.option(
         "--sub-format",
         type=SubtitleCodecChoice(Subtitle.Codec),
-        default="srt",
+        default=None,
         help="Set Output Subtitle Format, only converting if necessary.",
     )
     @click.option("-V", "--video-only", is_flag=True, default=False, help="Only download video tracks.")
@@ -252,6 +264,7 @@ class dl:
     @click.option(
         "--no-source", is_flag=True, default=False, help="Disable the source tag from the output file name and path."
     )
+    @click.option("--no-mux", is_flag=True, default=False, help="Do not mux tracks into a container file.")
     @click.option(
         "--workers",
         type=int,
@@ -263,6 +276,13 @@ class dl:
     @click.option(
         "--reset-cache", "reset_cache", is_flag=True, default=False, help="Clear title cache before fetching."
     )
+    @click.option(
+        "--best-available",
+        "best_available",
+        is_flag=True,
+        default=False,
+        help="Continue with best available quality if requested resolutions are not available.",
+    )
     @click.pass_context
     def cli(ctx: click.Context, **kwargs: Any) -> dl:
         return dl(ctx, **kwargs)
@@ -322,6 +342,16 @@ class dl:
                 vault_copy = vault.copy()
                 del vault_copy["type"]
 
+                if vault_type.lower() == "api" and "decrypt_labs" in vault_name.lower():
+                    if "token" not in vault_copy or not vault_copy["token"]:
+                        if config.decrypt_labs_api_key:
+                            vault_copy["token"] = config.decrypt_labs_api_key
+                        else:
+                            self.log.warning(
+                                f"No token provided for DecryptLabs vault '{vault_name}' and no global "
+                                "decrypt_labs_api_key configured"
+                            )
+
                 if vault_type.lower() == "sqlite":
                     try:
                         self.vaults.load_critical(vault_type, **vault_copy)
@@ -442,7 +472,9 @@ class dl:
         v_lang: list[str],
         a_lang: list[str],
         s_lang: list[str],
+        require_subs: list[str],
         forced_subs: bool,
+        exact_lang: bool,
         sub_format: Optional[Subtitle.Codec],
         video_only: bool,
         audio_only: bool,
@@ -460,8 +492,10 @@ class dl:
         no_proxy: bool,
         no_folder: bool,
         no_source: bool,
+        no_mux: bool,
         workers: Optional[int],
         downloads: int,
+        best_available: bool,
         *_: Any,
         **__: Any,
     ) -> None:
@@ -469,6 +503,10 @@ class dl:
         self.search_source = None
         start_time = time.time()
 
+        if require_subs and s_lang != ["all"]:
+            self.log.error("--require-subs and --s-lang cannot be used together")
+            sys.exit(1)
+
         # Check if dovi_tool is available when hybrid mode is requested
         if any(r == Video.Range.HYBRID for r in range_):
             from unshackle.core.binaries import DoviTool
@@ -678,7 +716,9 @@ class dl:
                             else:
                                 if language not in processed_video_lang:
                                     processed_video_lang.append(language)
-                        title.tracks.videos = title.tracks.by_language(title.tracks.videos, processed_video_lang)
+                        title.tracks.videos = title.tracks.by_language(
+                            title.tracks.videos, processed_video_lang, exact_match=exact_lang
+                        )
                         if not title.tracks.videos:
                             self.log.error(f"There's no {processed_video_lang} Video Track...")
                             sys.exit(1)
@@ -703,8 +743,14 @@ class dl:
                                 res_list = ", ".join([f"{x}p" for x in missing_resolutions[:-1]]) + " or "
                             res_list = f"{res_list}{missing_resolutions[-1]}p"
                             plural = "s" if len(missing_resolutions) > 1 else ""
-                            self.log.error(f"There's no {res_list} Video Track{plural}...")
-                            sys.exit(1)
+
+                            if best_available:
+                                self.log.warning(
+                                    f"There's no {res_list} Video Track{plural}, continuing with available qualities..."
+                                )
+                            else:
+                                self.log.error(f"There's no {res_list} Video Track{plural}...")
+                                sys.exit(1)
 
                     # choose best track by range and quality
                     if any(r == Video.Range.HYBRID for r in range_):
@@ -740,17 +786,35 @@ class dl:
                         title.tracks.videos = selected_videos
 
                     # filter subtitle tracks
-                    if s_lang and "all" not in s_lang:
+                    if require_subs:
+                        missing_langs = [
+                            lang
+                            for lang in require_subs
+                            if not any(is_close_match(lang, [sub.language]) for sub in title.tracks.subtitles)
+                        ]
+
+                        if missing_langs:
+                            self.log.error(f"Required subtitle language(s) not found: {', '.join(missing_langs)}")
+                            sys.exit(1)
+
+                        self.log.info(
+                            f"Required languages found ({', '.join(require_subs)}), downloading all available subtitles"
+                        )
+                    elif s_lang and "all" not in s_lang:
+                        from unshackle.core.utilities import is_exact_match
+
+                        match_func = is_exact_match if exact_lang else is_close_match
+
                         missing_langs = [
                             lang_
                             for lang_ in s_lang
-                            if not any(is_close_match(lang_, [sub.language]) for sub in title.tracks.subtitles)
+                            if not any(match_func(lang_, [sub.language]) for sub in title.tracks.subtitles)
                         ]
                         if missing_langs:
                             self.log.error(", ".join(missing_langs) + " not found in tracks")
                             sys.exit(1)
 
-                        title.tracks.select_subtitles(lambda x: is_close_match(x.language, s_lang))
+                        title.tracks.select_subtitles(lambda x: match_func(x.language, s_lang))
                         if not title.tracks.subtitles:
                             self.log.error(f"There's no {s_lang} Subtitle Track...")
                             sys.exit(1)
@@ -814,7 +878,7 @@ class dl:
                         elif "all" not in processed_lang:
                             per_language = 1
                             title.tracks.audio = title.tracks.by_language(
-                                title.tracks.audio, processed_lang, per_language=per_language
+                                title.tracks.audio, processed_lang, per_language=per_language, exact_match=exact_lang
                             )
                             if not title.tracks.audio:
                                 self.log.error(f"There's no {processed_lang} Audio Track, cannot continue...")
@@ -880,7 +944,7 @@ class dl:
                             self.service, self.profile, drm="widevine", quality=highest_quality
                         )
                         if quality_based_cdm and quality_based_cdm != self.cdm:
-                            self.log.info(
+                            self.log.debug(
                                 f"Pre-selecting Widevine CDM based on highest quality {highest_quality}p across all video tracks"
                             )
                             self.cdm = quality_based_cdm
@@ -891,7 +955,7 @@ class dl:
                             self.service, self.profile, drm="playready", quality=highest_quality
                         )
                         if quality_based_cdm and quality_based_cdm != self.cdm:
-                            self.log.info(
+                            self.log.debug(
                                 f"Pre-selecting PlayReady CDM based on highest quality {highest_quality}p across all video tracks"
                             )
                             self.cdm = quality_based_cdm
@@ -1090,7 +1154,12 @@ class dl:
 
                 muxed_paths = []
 
-                if isinstance(title, (Movie, Episode)):
+                if no_mux:
+                    # Skip muxing, handle individual track files
+                    for track in title.tracks:
+                        if track.path and track.path.exists():
+                            muxed_paths.append(track.path)
+                elif isinstance(title, (Movie, Episode)):
                     progress = Progress(
                         TextColumn("[progress.description]{task.description}"),
                         SpinnerColumn(finished_text=""),
@@ -1209,19 +1278,65 @@ class dl:
                     # dont mux
                     muxed_paths.append(title.tracks.audio[0].path)
 
-                for muxed_path in muxed_paths:
-                    media_info = MediaInfo.parse(muxed_path)
+                if no_mux:
+                    # Handle individual track files without muxing
                     final_dir = config.directories.downloads
-                    final_filename = title.get_filename(media_info, show_service=not no_source)
-
                     if not no_folder and isinstance(title, (Episode, Song)):
-                        final_dir /= title.get_filename(media_info, show_service=not no_source, folder=True)
+                        # Create folder based on title
+                        # Use first available track for filename generation
+                        sample_track = title.tracks.videos[0] if title.tracks.videos else (
+                            title.tracks.audio[0] if title.tracks.audio else (
+                                title.tracks.subtitles[0] if title.tracks.subtitles else None
+                            )
+                        )
+                        if sample_track and sample_track.path:
+                            media_info = MediaInfo.parse(sample_track.path)
+                            final_dir /= title.get_filename(media_info, show_service=not no_source, folder=True)
 
                     final_dir.mkdir(parents=True, exist_ok=True)
-                    final_path = final_dir / f"{final_filename}{muxed_path.suffix}"
 
-                    shutil.move(muxed_path, final_path)
-                    tags.tag_file(final_path, title, self.tmdb_id)
+                    for track_path in muxed_paths:
+                        # Generate appropriate filename for each track
+                        media_info = MediaInfo.parse(track_path)
+                        base_filename = title.get_filename(media_info, show_service=not no_source)
+
+                        # Add track type suffix to filename
+                        track = next((t for t in title.tracks if t.path == track_path), None)
+                        if track:
+                            if isinstance(track, Video):
+                                track_suffix = f".{track.codec.name if hasattr(track.codec, 'name') else 'video'}"
+                            elif isinstance(track, Audio):
+                                lang_suffix = f".{track.language}" if track.language else ""
+                                track_suffix = f"{lang_suffix}.{track.codec.name if hasattr(track.codec, 'name') else 'audio'}"
+                            elif isinstance(track, Subtitle):
+                                lang_suffix = f".{track.language}" if track.language else ""
+                                forced_suffix = ".forced" if track.forced else ""
+                                sdh_suffix = ".sdh" if track.sdh else ""
+                                track_suffix = f"{lang_suffix}{forced_suffix}{sdh_suffix}"
+                            else:
+                                track_suffix = ""
+
+                            final_path = final_dir / f"{base_filename}{track_suffix}{track_path.suffix}"
+                        else:
+                            final_path = final_dir / f"{base_filename}{track_path.suffix}"
+
+                        shutil.move(track_path, final_path)
+                        self.log.debug(f"Saved: {final_path.name}")
+                else:
+                    # Handle muxed files
+                    for muxed_path in muxed_paths:
+                        media_info = MediaInfo.parse(muxed_path)
+                        final_dir = config.directories.downloads
+                        final_filename = title.get_filename(media_info, show_service=not no_source)
+
+                        if not no_folder and isinstance(title, (Episode, Song)):
+                            final_dir /= title.get_filename(media_info, show_service=not no_source, folder=True)
+
+                        final_dir.mkdir(parents=True, exist_ok=True)
+                        final_path = final_dir / f"{final_filename}{muxed_path.suffix}"
+
+                        shutil.move(muxed_path, final_path)
+                        tags.tag_file(final_path, title, self.tmdb_id)
 
                 title_dl_time = time_elapsed_since(dl_start_time)
                 console.print(
@@ -1515,6 +1630,9 @@ class dl:
 
     @staticmethod
     def save_cookies(path: Path, cookies: CookieJar):
+        if hasattr(cookies, 'jar'):
+            cookies = cookies.jar
+
         cookie_jar = MozillaCookieJar(path)
         cookie_jar.load()
         for cookie in cookies:
@@ -1583,31 +1701,31 @@ class dl:
                 for key in quality_keys:
                     if key.isdigit() and quality == int(key):
                         quality_match = cdm_name[key]
-                        self.log.info(f"Selected CDM based on exact quality match {quality}p: {quality_match}")
+                        self.log.debug(f"Selected CDM based on exact quality match {quality}p: {quality_match}")
                         break
                     elif key.startswith(">="):
                         threshold = int(key[2:])
                         if quality >= threshold:
                             quality_match = cdm_name[key]
-                            self.log.info(f"Selected CDM based on quality {quality}p >= {threshold}p: {quality_match}")
+                            self.log.debug(f"Selected CDM based on quality {quality}p >= {threshold}p: {quality_match}")
                             break
                     elif key.startswith(">"):
                         threshold = int(key[1:])
                         if quality > threshold:
                             quality_match = cdm_name[key]
-                            self.log.info(f"Selected CDM based on quality {quality}p > {threshold}p: {quality_match}")
+                            self.log.debug(f"Selected CDM based on quality {quality}p > {threshold}p: {quality_match}")
                             break
                     elif key.startswith("<="):
                         threshold = int(key[2:])
                         if quality <= threshold:
                             quality_match = cdm_name[key]
-                            self.log.info(f"Selected CDM based on quality {quality}p <= {threshold}p: {quality_match}")
+                            self.log.debug(f"Selected CDM based on quality {quality}p <= {threshold}p: {quality_match}")
                             break
                     elif key.startswith("<"):
                         threshold = int(key[1:])
                         if quality < threshold:
                             quality_match = cdm_name[key]
-                            self.log.info(f"Selected CDM based on quality {quality}p < {threshold}p: {quality_match}")
+                            self.log.debug(f"Selected CDM based on quality {quality}p < {threshold}p: {quality_match}")
                             break
 
                 if quality_match:
@@ -1630,20 +1748,33 @@ class dl:
                 if not cdm_name:
                     return None
 
-        cdm_api = next(iter(x for x in config.remote_cdm if x["name"] == cdm_name), None)
+        cdm_api = next(iter(x.copy() for x in config.remote_cdm if x["name"] == cdm_name), None)
         if cdm_api:
             is_decrypt_lab = True if cdm_api.get("type") == "decrypt_labs" else False
             if is_decrypt_lab:
                 del cdm_api["name"]
                 del cdm_api["type"]
 
+                if "secret" not in cdm_api or not cdm_api["secret"]:
+                    if config.decrypt_labs_api_key:
+                        cdm_api["secret"] = config.decrypt_labs_api_key
+                    else:
+                        raise ValueError(
+                            f"No secret provided for DecryptLabs CDM '{cdm_name}' and no global "
+                            "decrypt_labs_api_key configured"
+                        )
+
                 # All DecryptLabs CDMs use DecryptLabsRemoteCDM
                 return DecryptLabsRemoteCDM(service_name=service, vaults=self.vaults, **cdm_api)
             else:
-                del cdm_api["name"]
-                if "type" in cdm_api:
-                    del cdm_api["type"]
-                return RemoteCdm(**cdm_api)
+                return RemoteCdm(
+                    device_type=cdm_api['Device Type'],
+                    system_id=cdm_api['System ID'],
+                    security_level=cdm_api['Security Level'],
+                    host=cdm_api['Host'],
+                    secret=cdm_api['Secret'],
+                    device_name=cdm_api['Device Name'],
+                )
 
         prd_path = config.directories.prds / f"{cdm_name}.prd"
         if not prd_path.is_file():

unshackle/commands/prd.py

@@ -5,10 +5,10 @@ from typing import Optional
 import click
 import requests
 from Crypto.Random import get_random_bytes
+from pyplayready import InvalidCertificateChain, OutdatedDevice
 from pyplayready.cdm import Cdm
 from pyplayready.crypto.ecc_key import ECCKey
 from pyplayready.device import Device
-from pyplayready.exceptions import InvalidCertificateChain, OutdatedDevice
 from pyplayready.system.bcert import Certificate, CertificateChain
 from pyplayready.system.pssh import PSSH
 

unshackle/core/__init__.py

@@ -1 +1 @@
-__version__ = "1.4.6"
+__version__ = "1.4.8"

unshackle/core/config.py

@@ -88,6 +88,7 @@ class Config:
         self.tag_group_name: bool = kwargs.get("tag_group_name", True)
         self.tag_imdb_tmdb: bool = kwargs.get("tag_imdb_tmdb", True)
         self.tmdb_api_key: str = kwargs.get("tmdb_api_key") or ""
+        self.decrypt_labs_api_key: str = kwargs.get("decrypt_labs_api_key") or ""
         self.update_checks: bool = kwargs.get("update_checks", True)
         self.update_check_interval: int = kwargs.get("update_check_interval", 24)
         self.scene_naming: bool = kwargs.get("scene_naming", True)

unshackle/core/constants.py

@@ -6,6 +6,7 @@ DOWNLOAD_LICENCE_ONLY = Event()
 
 DRM_SORT_MAP = ["ClearKey", "Widevine"]
 LANGUAGE_MAX_DISTANCE = 5  # this is max to be considered "same", e.g., en, en-US, en-AU
+LANGUAGE_EXACT_DISTANCE = 0  # exact match only, no variants
 VIDEO_CODEC_MAP = {"AVC": "H.264", "HEVC": "H.265"}
 DYNAMIC_RANGE_MAP = {"HDR10": "HDR", "HDR10+": "HDR10P", "Dolby Vision": "DV", "HDR10 / HDR10+": "HDR10P", "HDR10 / HDR10": "HDR"}
 AUDIO_CODEC_MAP = {"E-AC-3": "DDP", "AC-3": "DD"}

unshackle/core/downloaders/n_m3u8dl_re.py

@@ -150,6 +150,7 @@ def download(
 
     track_type = track.__class__.__name__
     thread_count = str(config.n_m3u8dl_re.get("thread_count", max_workers))
+    retry_count = str(config.n_m3u8dl_re.get("retry_count", max_workers))
     ad_keyword = config.n_m3u8dl_re.get("ad_keyword")
 
     arguments = [
@@ -160,6 +161,8 @@ def download(
         output_dir,
         "--thread-count",
         thread_count,
+        "--download-retry-count",
+        retry_count,
         "--no-log",
         "--write-meta-json",
         "false",

unshackle/core/drm/clearkey.py

@@ -8,6 +8,7 @@ from urllib.parse import urljoin
 
 from Cryptodome.Cipher import AES
 from Cryptodome.Util.Padding import unpad
+from curl_cffi.requests import Session as CurlSession
 from m3u8.model import Key
 from requests import Session
 
@@ -69,8 +70,8 @@ class ClearKey:
         """
         if not isinstance(m3u_key, Key):
             raise ValueError(f"Provided M3U Key is in an unexpected type {m3u_key!r}")
-        if not isinstance(session, (Session, type(None))):
-            raise TypeError(f"Expected session to be a {Session}, not a {type(session)}")
+        if not isinstance(session, (Session, CurlSession, type(None))):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not a {type(session)}")
 
         if not m3u_key.method.startswith("AES"):
             raise ValueError(f"Provided M3U Key is not an AES Clear Key, {m3u_key.method}")

unshackle/core/manifests/dash.py

@@ -15,6 +15,7 @@ from uuid import UUID
 from zlib import crc32
 
 import requests
+from curl_cffi.requests import Session as CurlSession
 from langcodes import Language, tag_is_valid
 from lxml.etree import Element, ElementTree
 from pyplayready.system.pssh import PSSH as PR_PSSH
@@ -47,7 +48,7 @@ class DASH:
         self.url = url
 
     @classmethod
-    def from_url(cls, url: str, session: Optional[Session] = None, **args: Any) -> DASH:
+    def from_url(cls, url: str, session: Optional[Union[Session, CurlSession]] = None, **args: Any) -> DASH:
         if not url:
             raise requests.URLRequired("DASH manifest URL must be provided for relative path computations.")
         if not isinstance(url, str):
@@ -55,8 +56,8 @@ class DASH:
 
         if not session:
             session = Session()
-        elif not isinstance(session, Session):
-            raise TypeError(f"Expected session to be a {Session}, not {session!r}")
+        elif not isinstance(session, (Session, CurlSession)):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not {session!r}")
 
         res = session.get(url, **args)
         if res.url != url:
@@ -103,6 +104,10 @@ class DASH:
                 continue
             if next(iter(period.xpath("SegmentType/@value")), "content") != "content":
                 continue
+            if "urn:amazon:primevideo:cachingBreadth" in [
+                x.get("schemeIdUri") for x in period.findall("SupplementalProperty")
+            ]:
+                continue
 
             for adaptation_set in period.findall("AdaptationSet"):
                 if self.is_trick_mode(adaptation_set):
@@ -248,8 +253,8 @@ class DASH:
     ):
         if not session:
             session = Session()
-        elif not isinstance(session, Session):
-            raise TypeError(f"Expected session to be a {Session}, not {session!r}")
+        elif not isinstance(session, (Session, CurlSession)):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not {session!r}")
 
         if proxy:
             session.proxies.update({"all": proxy})

unshackle/core/manifests/hls.py

@@ -14,9 +14,10 @@ from typing import Any, Callable, Optional, Union
 from urllib.parse import urljoin
 from zlib import crc32
 
-import httpx
 import m3u8
 import requests
+from curl_cffi.requests import Response as CurlResponse
+from curl_cffi.requests import Session as CurlSession
 from langcodes import Language, tag_is_valid
 from m3u8 import M3U8
 from pyplayready.cdm import Cdm as PlayReadyCdm
@@ -35,7 +36,7 @@ from unshackle.core.utilities import get_extension, is_close_match, try_ensure_u
 
 
 class HLS:
-    def __init__(self, manifest: M3U8, session: Optional[Union[Session, httpx.Client]] = None):
+    def __init__(self, manifest: M3U8, session: Optional[Union[Session, CurlSession]] = None):
         if not manifest:
             raise ValueError("HLS manifest must be provided.")
         if not isinstance(manifest, M3U8):
@@ -47,7 +48,7 @@ class HLS:
         self.session = session or Session()
 
     @classmethod
-    def from_url(cls, url: str, session: Optional[Union[Session, httpx.Client]] = None, **args: Any) -> HLS:
+    def from_url(cls, url: str, session: Optional[Union[Session, CurlSession]] = None, **args: Any) -> HLS:
         if not url:
             raise requests.URLRequired("HLS manifest URL must be provided.")
         if not isinstance(url, str):
@@ -55,22 +56,22 @@ class HLS:
 
         if not session:
             session = Session()
-        elif not isinstance(session, (Session, httpx.Client)):
-            raise TypeError(f"Expected session to be a {Session} or {httpx.Client}, not {session!r}")
+        elif not isinstance(session, (Session, CurlSession)):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not {session!r}")
 
         res = session.get(url, **args)
 
-        # Handle both requests and httpx response objects
+        # Handle requests and curl_cffi response objects
         if isinstance(res, requests.Response):
             if not res.ok:
                 raise requests.ConnectionError("Failed to request the M3U(8) document.", response=res)
             content = res.text
-        elif isinstance(res, httpx.Response):
-            if res.status_code >= 400:
+        elif isinstance(res, CurlResponse):
+            if not res.ok:
                 raise requests.ConnectionError("Failed to request the M3U(8) document.", response=res)
             content = res.text
         else:
-            raise TypeError(f"Expected response to be a requests.Response or httpx.Response, not {type(res)}")
+            raise TypeError(f"Expected response to be a requests.Response or curl_cffi.Response, not {type(res)}")
 
         master = m3u8.loads(content, uri=url)
 
@@ -229,7 +230,7 @@ class HLS:
         save_path: Path,
         save_dir: Path,
         progress: partial,
-        session: Optional[Union[Session, httpx.Client]] = None,
+        session: Optional[Union[Session, CurlSession]] = None,
         proxy: Optional[str] = None,
         max_workers: Optional[int] = None,
         license_widevine: Optional[Callable] = None,
@@ -238,15 +239,13 @@ class HLS:
     ) -> None:
         if not session:
             session = Session()
-        elif not isinstance(session, (Session, httpx.Client)):
-            raise TypeError(f"Expected session to be a {Session} or {httpx.Client}, not {session!r}")
+        elif not isinstance(session, (Session, CurlSession)):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not {session!r}")
 
         if proxy:
             # Handle proxies differently based on session type
             if isinstance(session, Session):
                 session.proxies.update({"all": proxy})
-            elif isinstance(session, httpx.Client):
-                session.proxies = {"http://": proxy, "https://": proxy}
 
         log = logging.getLogger("HLS")
 
@@ -257,13 +256,8 @@ class HLS:
                 log.error(f"Failed to request the invariant M3U8 playlist: {response.status_code}")
                 sys.exit(1)
             playlist_text = response.text
-        elif isinstance(response, httpx.Response):
-            if response.status_code >= 400:
-                log.error(f"Failed to request the invariant M3U8 playlist: {response.status_code}")
-                sys.exit(1)
-            playlist_text = response.text
         else:
-            raise TypeError(f"Expected response to be a requests.Response or httpx.Response, not {type(response)}")
+            raise TypeError(f"Expected response to be a requests.Response or curl_cffi.Response, not {type(response)}")
 
         master = m3u8.loads(playlist_text, uri=track.url)
 
@@ -533,13 +527,9 @@ class HLS:
                         if isinstance(res, requests.Response):
                             res.raise_for_status()
                             init_content = res.content
-                        elif isinstance(res, httpx.Response):
-                            if res.status_code >= 400:
-                                raise requests.HTTPError(f"HTTP Error: {res.status_code}", response=res)
-                            init_content = res.content
                         else:
                             raise TypeError(
-                                f"Expected response to be requests.Response or httpx.Response, not {type(res)}"
+                                f"Expected response to be requests.Response or curl_cffi.Response, not {type(res)}"
                             )
 
                         map_data = (segment.init_section, init_content)
@@ -707,7 +697,7 @@ class HLS:
 
     @staticmethod
     def parse_session_data_keys(
-        manifest: M3U8, session: Optional[Union[Session, httpx.Client]] = None
+        manifest: M3U8, session: Optional[Union[Session, CurlSession]] = None
     ) -> list[m3u8.model.Key]:
         """Parse `com.apple.hls.keys` session data and return Key objects."""
         keys: list[m3u8.model.Key] = []
@@ -798,7 +788,8 @@ class HLS:
 
     @staticmethod
     def get_drm(
-        key: Union[m3u8.model.SessionKey, m3u8.model.Key], session: Optional[Union[Session, httpx.Client]] = None
+        key: Union[m3u8.model.SessionKey, m3u8.model.Key],
+        session: Optional[Union[Session, CurlSession]] = None,
     ) -> DRM_T:
         """
         Convert HLS EXT-X-KEY data to an initialized DRM object.
@@ -810,8 +801,8 @@ class HLS:
 
         Raises a NotImplementedError if the key system is not supported.
         """
-        if not isinstance(session, (Session, httpx.Client, type(None))):
-            raise TypeError(f"Expected session to be a {Session} or {httpx.Client}, not {type(session)}")
+        if not isinstance(session, (Session, CurlSession, type(None))):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not {type(session)}")
         if not session:
             session = Session()
 

unshackle/core/manifests/ism.py

@@ -10,6 +10,7 @@ from pathlib import Path
 from typing import Any, Callable, Optional, Union
 
 import requests
+from curl_cffi.requests import Session as CurlSession
 from langcodes import Language, tag_is_valid
 from lxml.etree import Element
 from pyplayready.system.pssh import PSSH as PR_PSSH
@@ -34,11 +35,13 @@ class ISM:
         self.url = url
 
     @classmethod
-    def from_url(cls, url: str, session: Optional[Session] = None, **kwargs: Any) -> "ISM":
+    def from_url(cls, url: str, session: Optional[Union[Session, CurlSession]] = None, **kwargs: Any) -> "ISM":
         if not url:
             raise requests.URLRequired("ISM manifest URL must be provided")
         if not session:
             session = Session()
+        elif not isinstance(session, (Session, CurlSession)):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not {session!r}")
         res = session.get(url, **kwargs)
         if res.url != url:
             url = res.url

unshackle/core/manifests/m3u8.py

@@ -2,9 +2,10 @@
 
 from __future__ import annotations
 
-from typing import Optional
+from typing import Optional, Union
 
 import m3u8
+from curl_cffi.requests import Session as CurlSession
 from requests import Session
 
 from unshackle.core.manifests.hls import HLS
@@ -15,7 +16,7 @@ def parse(
     master: m3u8.M3U8,
     language: str,
     *,
-    session: Optional[Session] = None,
+    session: Optional[Union[Session, CurlSession]] = None,
 ) -> Tracks:
     """Parse a variant playlist to ``Tracks`` with basic information, defer DRM loading."""
     tracks = HLS(master, session=session).to_tracks(language)

unshackle/core/session.py

@@ -0,0 +1,79 @@
+"""Session utilities for creating HTTP sessions with different backends."""
+
+from __future__ import annotations
+
+import warnings
+
+from curl_cffi.requests import Session as CurlSession
+
+from unshackle.core.config import config
+
+# Globally suppress curl_cffi HTTPS proxy warnings since some proxy providers
+# (like NordVPN) require HTTPS URLs but curl_cffi expects HTTP format
+warnings.filterwarnings(
+    "ignore", message="Make sure you are using https over https proxy.*", category=RuntimeWarning, module="curl_cffi.*"
+)
+
+
+class Session(CurlSession):
+    """curl_cffi Session with warning suppression."""
+
+    def request(self, method, url, **kwargs):
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                "ignore", message="Make sure you are using https over https proxy.*", category=RuntimeWarning
+            )
+            return super().request(method, url, **kwargs)
+
+
+def session(browser: str | None = None, **kwargs) -> Session:
+    """
+    Create a curl_cffi session that impersonates a browser.
+
+    This is a full replacement for requests.Session with browser impersonation
+    and anti-bot capabilities. The session uses curl-impersonate under the hood
+    to mimic real browser behavior.
+
+    Args:
+        browser: Browser to impersonate (e.g. "chrome124", "firefox", "safari").
+                 Uses the configured default from curl_impersonate.browser if not specified.
+                 See https://github.com/lexiforest/curl_cffi#sessions for available options.
+        **kwargs: Additional arguments passed to CurlSession constructor:
+                  - headers: Additional headers (dict)
+                  - cookies: Cookie jar or dict
+                  - auth: HTTP basic auth tuple (username, password)
+                  - proxies: Proxy configuration dict
+                  - verify: SSL certificate verification (bool, default True)
+                  - timeout: Request timeout in seconds (float or tuple)
+                  - allow_redirects: Follow redirects (bool, default True)
+                  - max_redirects: Maximum redirect count (int)
+                  - cert: Client certificate (str or tuple)
+
+    Returns:
+        curl_cffi.requests.Session configured with browser impersonation, common headers,
+        and equivalent retry behavior to requests.Session.
+
+    Example:
+        from unshackle.core.session import session
+
+        class MyService(Service):
+            @staticmethod
+            def get_session():
+                return session()  # Uses config default browser
+    """
+    if browser is None:
+        browser = config.curl_impersonate.get("browser", "chrome124")
+
+    session_config = {
+        "impersonate": browser,
+        "timeout": 30.0,
+        "allow_redirects": True,
+        "max_redirects": 15,
+        "verify": True,
+    }
+
+    session_config.update(kwargs)
+    session_obj = Session(**session_config)
+    session_obj.headers.update(config.headers)
+
+    return session_obj

unshackle/core/titles/episode.py

@@ -89,7 +89,17 @@ class Episode(Title):
 
     def get_filename(self, media_info: MediaInfo, folder: bool = False, show_service: bool = True) -> str:
         primary_video_track = next(iter(media_info.video_tracks), None)
-        primary_audio_track = next(iter(media_info.audio_tracks), None)
+        primary_audio_track = None
+        if media_info.audio_tracks:
+            sorted_audio = sorted(
+                media_info.audio_tracks,
+                key=lambda x: (
+                    float(x.bit_rate) if x.bit_rate else 0,
+                    bool(x.format_additionalfeatures and "JOC" in x.format_additionalfeatures)
+                ),
+                reverse=True
+            )
+            primary_audio_track = sorted_audio[0]
         unique_audio_languages = len({x.language.split("-")[0] for x in media_info.audio_tracks if x.language})
 
         # Title [Year] SXXEXX Name (or Title [Year] SXX if folder)

unshackle/core/titles/movie.py

@@ -52,7 +52,17 @@ class Movie(Title):
 
     def get_filename(self, media_info: MediaInfo, folder: bool = False, show_service: bool = True) -> str:
         primary_video_track = next(iter(media_info.video_tracks), None)
-        primary_audio_track = next(iter(media_info.audio_tracks), None)
+        primary_audio_track = None
+        if media_info.audio_tracks:
+            sorted_audio = sorted(
+                media_info.audio_tracks,
+                key=lambda x: (
+                    float(x.bit_rate) if x.bit_rate else 0,
+                    bool(x.format_additionalfeatures and "JOC" in x.format_additionalfeatures)
+                ),
+                reverse=True
+            )
+            primary_audio_track = sorted_audio[0]
         unique_audio_languages = len({x.language.split("-")[0] for x in media_info.audio_tracks if x.language})
 
         # Name (Year)

unshackle/core/tracks/audio.py

@@ -12,6 +12,7 @@ class Audio(Track):
         AAC = "AAC"  # https://wikipedia.org/wiki/Advanced_Audio_Coding
         AC3 = "DD"  # https://wikipedia.org/wiki/Dolby_Digital
         EC3 = "DD+"  # https://wikipedia.org/wiki/Dolby_Digital_Plus
+        AC4 = "AC-4"  # https://wikipedia.org/wiki/Dolby_AC-4
         OPUS = "OPUS"  # https://wikipedia.org/wiki/Opus_(audio_format)
         OGG = "VORB"  # https://wikipedia.org/wiki/Vorbis
         DTS = "DTS"  # https://en.wikipedia.org/wiki/DTS_(company)#DTS_Digital_Surround
@@ -31,6 +32,8 @@ class Audio(Track):
                 return Audio.Codec.AC3
             if mime == "ec-3":
                 return Audio.Codec.EC3
+            if mime == "ac-4":
+                return Audio.Codec.AC4
             if mime == "opus":
                 return Audio.Codec.OPUS
             if mime == "dtsc":
@@ -60,6 +63,8 @@ class Audio(Track):
                 return Audio.Codec.AC3
             if profile.startswith("ddplus"):
                 return Audio.Codec.EC3
+            if profile.startswith("ac4"):
+                return Audio.Codec.AC4
             if profile.startswith("playready-oggvorbis"):
                 return Audio.Codec.OGG
             raise ValueError(f"The Content Profile '{profile}' is not a supported Audio Codec")

unshackle/core/tracks/subtitle.py

@@ -10,6 +10,7 @@ from pathlib import Path
 from typing import Any, Callable, Iterable, Optional, Union
 
 import pycaption
+import pysubs2
 import requests
 from construct import Container
 from pycaption import Caption, CaptionList, CaptionNode, WebVTTReader
@@ -33,6 +34,9 @@ class Subtitle(Track):
         TimedTextMarkupLang = "TTML"  # https://wikipedia.org/wiki/Timed_Text_Markup_Language
         WebVTT = "VTT"  # https://wikipedia.org/wiki/WebVTT
         SAMI = "SMI"  # https://wikipedia.org/wiki/SAMI
+        MicroDVD = "SUB"  # https://wikipedia.org/wiki/MicroDVD
+        MPL2 = "MPL2"  # MPL2 subtitle format
+        TMP = "TMP"  # TMP subtitle format
         # MPEG-DASH box-encapsulated subtitle formats
         fTTML = "STPP"  # https://www.w3.org/TR/2018/REC-ttml-imsc1.0.1-20180424
         fVTT = "WVTT"  # https://www.w3.org/TR/webvtt1
@@ -56,6 +60,12 @@ class Subtitle(Track):
                 return Subtitle.Codec.WebVTT
             elif mime in ("smi", "sami"):
                 return Subtitle.Codec.SAMI
+            elif mime in ("sub", "microdvd"):
+                return Subtitle.Codec.MicroDVD
+            elif mime == "mpl2":
+                return Subtitle.Codec.MPL2
+            elif mime == "tmp":
+                return Subtitle.Codec.TMP
             elif mime == "stpp":
                 return Subtitle.Codec.fTTML
             elif mime == "wvtt":
@@ -391,6 +401,57 @@ class Subtitle(Track):
             # Fall back to existing conversion method on any error
             return self._convert_standard(codec)
 
+    def convert_with_pysubs2(self, codec: Subtitle.Codec) -> Path:
+        """
+        Convert subtitle using pysubs2 library for broad format support.
+
+        pysubs2 is a pure-Python library supporting SubRip (SRT), SubStation Alpha
+        (SSA/ASS), WebVTT, TTML, SAMI, MicroDVD, MPL2, and TMP formats.
+        """
+        if not self.path or not self.path.exists():
+            raise ValueError("You must download the subtitle track first.")
+
+        if self.codec == codec:
+            return self.path
+
+        output_path = self.path.with_suffix(f".{codec.value.lower()}")
+        original_path = self.path
+
+        codec_to_pysubs2_format = {
+            Subtitle.Codec.SubRip: "srt",
+            Subtitle.Codec.SubStationAlpha: "ssa",
+            Subtitle.Codec.SubStationAlphav4: "ass",
+            Subtitle.Codec.WebVTT: "vtt",
+            Subtitle.Codec.TimedTextMarkupLang: "ttml",
+            Subtitle.Codec.SAMI: "sami",
+            Subtitle.Codec.MicroDVD: "microdvd",
+            Subtitle.Codec.MPL2: "mpl2",
+            Subtitle.Codec.TMP: "tmp",
+        }
+
+        pysubs2_output_format = codec_to_pysubs2_format.get(codec)
+        if pysubs2_output_format is None:
+            return self._convert_standard(codec)
+
+        try:
+            subs = pysubs2.load(str(self.path), encoding="utf-8")
+
+            subs.save(str(output_path), format_=pysubs2_output_format, encoding="utf-8")
+
+            if original_path.exists() and original_path != output_path:
+                original_path.unlink()
+
+            self.path = output_path
+            self.codec = codec
+
+            if callable(self.OnConverted):
+                self.OnConverted(codec)
+
+            return output_path
+
+        except Exception:
+            return self._convert_standard(codec)
+
     def convert(self, codec: Subtitle.Codec) -> Path:
         """
         Convert this Subtitle to another Format.
@@ -400,6 +461,7 @@ class Subtitle(Track):
         - 'subby': Always uses subby with CommonIssuesFixer
         - 'subtitleedit': Uses SubtitleEdit when available, falls back to pycaption
         - 'pycaption': Uses only pycaption library
+        - 'pysubs2': Uses pysubs2 library
         """
         # Check configuration for conversion method
         conversion_method = config.subtitle.get("conversion_method", "auto")
@@ -407,11 +469,12 @@ class Subtitle(Track):
         if conversion_method == "subby":
             return self.convert_with_subby(codec)
         elif conversion_method == "subtitleedit":
-            return self._convert_standard(codec)  # SubtitleEdit is used in standard conversion
+            return self._convert_standard(codec)
         elif conversion_method == "pycaption":
             return self._convert_pycaption_only(codec)
+        elif conversion_method == "pysubs2":
+            return self.convert_with_pysubs2(codec)
         elif conversion_method == "auto":
-            # Use subby for formats it handles better
             if self.codec in (Subtitle.Codec.WebVTT, Subtitle.Codec.SAMI):
                 return self.convert_with_subby(codec)
             else:

unshackle/core/tracks/track.py

@@ -13,6 +13,7 @@ from typing import Any, Callable, Iterable, Optional, Union
 from uuid import UUID
 from zlib import crc32
 
+from curl_cffi.requests import Session as CurlSession
 from langcodes import Language
 from pyplayready.cdm import Cdm as PlayReadyCdm
 from pywidevine.cdm import Cdm as WidevineCdm
@@ -585,8 +586,8 @@ class Track:
             raise TypeError(f"Expected url to be a {str}, not {type(url)}")
         if not isinstance(byte_range, (str, type(None))):
             raise TypeError(f"Expected byte_range to be a {str}, not {type(byte_range)}")
-        if not isinstance(session, (Session, type(None))):
-            raise TypeError(f"Expected session to be a {Session}, not {type(session)}")
+        if not isinstance(session, (Session, CurlSession, type(None))):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not {type(session)}")
 
         if not url:
             if self.descriptor != self.Descriptor.URL:

unshackle/core/tracks/tracks.py

@@ -14,7 +14,7 @@ from rich.tree import Tree
 from unshackle.core import binaries
 from unshackle.core.config import config
 from unshackle.core.console import console
-from unshackle.core.constants import LANGUAGE_MAX_DISTANCE, AnyTrack, TrackT
+from unshackle.core.constants import LANGUAGE_EXACT_DISTANCE, LANGUAGE_MAX_DISTANCE, AnyTrack, TrackT
 from unshackle.core.events import events
 from unshackle.core.tracks.attachment import Attachment
 from unshackle.core.tracks.audio import Audio
@@ -181,7 +181,7 @@ class Tracks:
         log = logging.getLogger("Tracks")
 
         if duplicates:
-            log.warning(f" - Found and skipped {duplicates} duplicate tracks...")
+            log.debug(f" - Found and skipped {duplicates} duplicate tracks...")
 
     def sort_videos(self, by_language: Optional[Sequence[Union[str, Language]]] = None) -> None:
         """Sort video tracks by bitrate, and optionally language."""
@@ -202,17 +202,16 @@ class Tracks:
         """Sort audio tracks by bitrate, descriptive, and optionally language."""
         if not self.audio:
             return
-        # bitrate
-        self.audio.sort(key=lambda x: float(x.bitrate or 0.0), reverse=True)
         # descriptive
-        self.audio.sort(key=lambda x: str(x.language) if x.descriptive else "")
+        self.audio.sort(key=lambda x: x.descriptive)
+        # bitrate (within each descriptive group)
+        self.audio.sort(key=lambda x: float(x.bitrate or 0.0), reverse=True)
         # language
         for language in reversed(by_language or []):
             if str(language) in ("all", "best"):
                 language = next((x.language for x in self.audio if x.is_original_lang), "")
             if not language:
                 continue
-            self.audio.sort(key=lambda x: str(x.language))
             self.audio.sort(key=lambda x: not is_close_match(language, [x.language]))
 
     def sort_subtitles(self, by_language: Optional[Sequence[Union[str, Language]]] = None) -> None:
@@ -295,11 +294,14 @@ class Tracks:
         self.videos = selected
 
     @staticmethod
-    def by_language(tracks: list[TrackT], languages: list[str], per_language: int = 0) -> list[TrackT]:
+    def by_language(
+        tracks: list[TrackT], languages: list[str], per_language: int = 0, exact_match: bool = False
+    ) -> list[TrackT]:
+        distance = LANGUAGE_EXACT_DISTANCE if exact_match else LANGUAGE_MAX_DISTANCE
         selected = []
         for language in languages:
             selected.extend(
-                [x for x in tracks if closest_supported_match(x.language, [language], LANGUAGE_MAX_DISTANCE)][
+                [x for x in tracks if closest_supported_match(str(x.language), [language], distance)][
                     : per_language or None
                 ]
             )

unshackle/core/utilities.py

@@ -24,7 +24,7 @@ from unidecode import unidecode
 
 from unshackle.core.cacher import Cacher
 from unshackle.core.config import config
-from unshackle.core.constants import LANGUAGE_MAX_DISTANCE
+from unshackle.core.constants import LANGUAGE_EXACT_DISTANCE, LANGUAGE_MAX_DISTANCE
 
 
 def rotate_log_file(log_path: Path, keep: int = 20) -> Path:
@@ -114,6 +114,14 @@ def is_close_match(language: Union[str, Language], languages: Sequence[Union[str
     return closest_match(language, list(map(str, languages)))[1] <= LANGUAGE_MAX_DISTANCE
 
 
+def is_exact_match(language: Union[str, Language], languages: Sequence[Union[str, Language, None]]) -> bool:
+    """Check if a language is an exact match to any of the provided languages."""
+    languages = [x for x in languages if x]
+    if not languages:
+        return False
+    return closest_match(language, list(map(str, languages)))[1] <= LANGUAGE_EXACT_DISTANCE
+
+
 def get_boxes(data: bytes, box_type: bytes, as_bytes: bool = False) -> Box:
     """
     Scan a byte array for a wanted MP4/ISOBMFF box, then parse and yield each find.

unshackle/core/utils/tags.py

@@ -294,7 +294,7 @@ def _apply_tags(path: Path, tags: dict[str, str]) -> None:
     for name, value in tags.items():
         xml_lines.append(f"    <Simple><Name>{escape(name)}</Name><String>{escape(value)}</String></Simple>")
     xml_lines.extend(["  </Tag>", "</Tags>"])
-    with tempfile.NamedTemporaryFile("w", suffix=".xml", delete=False) as f:
+    with tempfile.NamedTemporaryFile("w", suffix=".xml", delete=False, encoding="utf-8") as f:
         f.write("\n".join(xml_lines))
         tmp_path = Path(f.name)
     try:

unshackle/unshackle-example.yaml

@@ -253,6 +253,7 @@ tmdb_api_key: ""
 # - subby: Always use subby with advanced processing
 # - pycaption: Use only pycaption library (no SubtitleEdit, no subby)
 # - subtitleedit: Prefer SubtitleEdit when available, fall back to pycaption
+# - pysubs2: Use pysubs2 library (supports SRT/SSA/ASS/WebVTT/TTML/SAMI/MicroDVD/MPL2/TMP)
 subtitle:
   conversion_method: auto
   sdh_method: auto

unshackle/vaults/HTTP.py

@@ -16,13 +16,21 @@ class InsertResult(Enum):
 
 
 class HTTP(Vault):
-    """Key Vault using HTTP API with support for both query parameters and JSON payloads."""
+    """
+    Key Vault using HTTP API with support for multiple API modes.
+
+    Supported modes:
+    - query: Uses GET requests with query parameters
+    - json: Uses POST requests with JSON payloads
+    - decrypt_labs: Uses DecryptLabs API format (read-only)
+    """
 
     def __init__(
         self,
         name: str,
         host: str,
-        password: str,
+        password: Optional[str] = None,
+        api_key: Optional[str] = None,
         username: Optional[str] = None,
         api_mode: str = "query",
         no_push: bool = False,
@@ -34,13 +42,17 @@ class HTTP(Vault):
             name: Vault name
             host: Host URL
             password: Password for query mode or API token for json mode
-            username: Username (required for query mode, ignored for json mode)
-            api_mode: "query" for query parameters or "json" for JSON API
+            api_key: API key (alternative to password, used for decrypt_labs mode)
+            username: Username (required for query mode, ignored for json/decrypt_labs mode)
+            api_mode: "query" for query parameters, "json" for JSON API, or "decrypt_labs" for DecryptLabs API
             no_push: If True, this vault will not receive pushed keys
         """
         super().__init__(name, no_push)
         self.url = host
-        self.password = password
+        self.password = api_key or password
+        if not self.password:
+            raise ValueError("Either password or api_key is required")
+
         self.username = username
         self.api_mode = api_mode.lower()
         self.current_title = None
@@ -48,11 +60,15 @@ class HTTP(Vault):
         self.session.headers.update({"User-Agent": f"unshackle v{__version__}"})
         self.api_session_id = None
 
+        if self.api_mode == "decrypt_labs":
+            self.session.headers.update({"decrypt-labs-api-key": self.password})
+            self.no_push = True
+
         # Validate configuration based on mode
         if self.api_mode == "query" and not self.username:
             raise ValueError("Username is required for query mode")
-        elif self.api_mode not in ["query", "json"]:
-            raise ValueError("api_mode must be either 'query' or 'json'")
+        elif self.api_mode not in ["query", "json", "decrypt_labs"]:
+            raise ValueError("api_mode must be either 'query', 'json', or 'decrypt_labs'")
 
     def request(self, method: str, params: dict = None) -> dict:
         """Make a request to the JSON API vault."""
@@ -95,7 +111,51 @@ class HTTP(Vault):
         if isinstance(kid, UUID):
             kid = kid.hex
 
-        if self.api_mode == "json":
+        if self.api_mode == "decrypt_labs":
+            try:
+                request_payload = {"service": service.lower(), "kid": kid}
+
+                response = self.session.post(self.url, json=request_payload)
+
+                if not response.ok:
+                    return None
+
+                data = response.json()
+
+                if data.get("message") != "success":
+                    return None
+
+                cached_keys = data.get("cached_keys")
+                if not cached_keys:
+                    return None
+
+                if isinstance(cached_keys, str):
+                    try:
+                        cached_keys = json.loads(cached_keys)
+                    except json.JSONDecodeError:
+                        return cached_keys
+
+                if isinstance(cached_keys, dict):
+                    if cached_keys.get("kid") == kid:
+                        return cached_keys.get("key")
+                    if kid in cached_keys:
+                        return cached_keys[kid]
+                elif isinstance(cached_keys, list):
+                    for entry in cached_keys:
+                        if isinstance(entry, dict):
+                            if entry.get("kid") == kid:
+                                return entry.get("key")
+                        elif isinstance(entry, str) and ":" in entry:
+                            entry_kid, entry_key = entry.split(":", 1)
+                            if entry_kid == kid:
+                                return entry_key
+
+            except Exception as e:
+                print(f"Failed to get key from DecryptLabs ({e.__class__.__name__}: {e})")
+                return None
+            return None
+
+        elif self.api_mode == "json":
             try:
                 params = {
                     "kid": kid,
@@ -132,7 +192,9 @@ class HTTP(Vault):
             return data["keys"][0]["key"]
 
     def get_keys(self, service: str) -> Iterator[tuple[str, str]]:
-        if self.api_mode == "json":
+        if self.api_mode == "decrypt_labs":
+            return iter([])
+        elif self.api_mode == "json":
             # JSON API doesn't support getting all keys, so return empty iterator
             # This will cause the copy command to rely on the API's internal duplicate handling
             return iter([])
@@ -153,6 +215,9 @@ class HTTP(Vault):
         if not key or key.count("0") == len(key):
             raise ValueError("You cannot add a NULL Content Key to a Vault.")
 
+        if self.api_mode == "decrypt_labs":
+            return False
+
         if isinstance(kid, UUID):
             kid = kid.hex
 
@@ -192,6 +257,9 @@ class HTTP(Vault):
             return data.get("status_code") == 200
 
     def add_keys(self, service: str, kid_keys: dict[Union[UUID, str], str]) -> int:
+        if self.api_mode == "decrypt_labs":
+            return 0
+
         for kid, key in kid_keys.items():
             if not key or key.count("0") == len(key):
                 raise ValueError("You cannot add a NULL Content Key to a Vault.")
@@ -243,7 +311,9 @@ class HTTP(Vault):
         return inserted_count
 
     def get_services(self) -> Iterator[str]:
-        if self.api_mode == "json":
+        if self.api_mode == "decrypt_labs":
+            return iter([])
+        elif self.api_mode == "json":
             try:
                 response = self.request("GetServices")
                 services = response.get("services", [])
@@ -283,6 +353,9 @@ class HTTP(Vault):
         if not key or key.count("0") == len(key):
             raise ValueError("You cannot add a NULL Content Key to a Vault.")
 
+        if self.api_mode == "decrypt_labs":
+            return InsertResult.FAILURE
+
         if isinstance(kid, UUID):
             kid = kid.hex
 

uv.lock

@@ -645,67 +645,72 @@ wheels = [
 
 [[package]]
 name = "lxml"
-version = "5.4.0"
+version = "6.0.2"
 source = { registry = "https://pypi.org/simple" }
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+sdist = { url = "https://files.pythonhosted.org/packages/aa/88/262177de60548e5a2bfc46ad28232c9e9cbde697bd94132aeb80364675cb/lxml-6.0.2.tar.gz", hash = "sha256:cd79f3367bd74b317dda655dc8fcfa304d9eb6e4fb06b7168c5cf27f96e0cd62", size = 4073426, upload-time = "2025-09-22T04:04:59.287Z" }
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+version = "0.6.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "aiohttp" },
     { name = "click" },
     { name = "construct" },
+    { name = "cryptography" },
     { name = "ecpy" },
+    { name = "lxml" },
     { name = "pycryptodome" },
     { name = "pyyaml" },
     { name = "requests" },
     { name = "xmltodict" },
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+version = "1.8.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/31/4a/becf78d9d3df56e6c4a9c50b83794e5436b6c5ab6dd8a3f934e94c89338c/pysubs2-1.8.0.tar.gz", hash = "sha256:3397bb58a4a15b1325ba2ae3fd4d7c214e2c0ddb9f33190d6280d783bb433b20", size = 1130048, upload-time = "2024-12-24T12:39:47.769Z" }
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+
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 version = "1.8.0"
@@ -1393,8 +1408,8 @@ sdist = { url = "https://files.pythonhosted.org/packages/66/b7/4a1bc231e0681ebf3
 
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-version = "0.3.21"
-source = { git = "https://github.com/vevv/subby.git#390cb2f4a55e98057cdd65314d8cbffd5d0a11f1" }
+version = "0.3.23"
+source = { git = "https://github.com/vevv/subby.git?rev=5a925c367ffb3f5e53fd114ae222d3be1fdff35d#5a925c367ffb3f5e53fd114ae222d3be1fdff35d" }
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 [[package]]
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-version = "1.4.6"
+version = "1.4.8"
 source = { editable = "." }
 dependencies = [
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@@ -1523,6 +1538,7 @@ dependencies = [
     { name = "pymp4" },
     { name = "pymysql" },
     { name = "pyplayready" },
+    { name = "pysubs2" },
     { name = "pywidevine", extra = ["serve"] },
     { name = "pyyaml" },
     { name = "requests", extra = ["socks"] },
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     { name = "langcodes", specifier = ">=3.4.0,<4" },
-    { name = "lxml", specifier = ">=5.2.1,<6" },
+    { name = "lxml", specifier = ">=5.2.1,<7" },
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     { name = "pymysql", specifier = ">=1.1.0,<2" },
-    { name = "pyplayready", specifier = ">=0.6.0,<0.7" },
+    { name = "pyplayready", specifier = ">=0.6.3,<0.7" },
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-    { name = "subby", git = "https://github.com/vevv/subby.git" },
+    { name = "subby", git = "https://github.com/vevv/subby.git?rev=5a925c367ffb3f5e53fd114ae222d3be1fdff35d" },
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