6bf88474ee
Replace AI Studio gemini-embedding-001 with Vertex AI text-multilingual-embedding-002 via google-genai SDK (vertexai=True). Vertex AI uses ADC (already configured) and has significantly higher per-project quotas than AI Studio per-user limits. Same 768-dim output; multilingual model better suited for 50+ language glossaries. Add gcp_location config field (default us-central1). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
321 lines
13 KiB
Python
321 lines
13 KiB
Python
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from pydantic_settings import BaseSettings
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class Settings(BaseSettings):
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# App
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app_env: str = "dev"
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api_base_url: str = "http://localhost:8000"
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app_url: str = "https://optical-dev.oliver.solutions/video-accessibility"
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# Auth
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jwt_secret: str
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jwt_alg: str = "HS256"
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jwt_access_ttl_min: int = 15
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jwt_refresh_ttl_days: int = 7
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cookie_domain: str = "localhost"
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cookie_secure: bool = False
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cookie_samesite: str = "Lax"
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# Database
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mongodb_uri: str
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mongodb_db: str = "accessible_video"
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# Redis
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redis_url: str
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# Celery
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celery_broker_url: str = ""
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celery_result_backend: str = ""
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# GCP
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gcp_project_id: str
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gcp_location: str = "us-central1"
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gcs_bucket: str = "accessible-video"
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google_application_credentials: str = ""
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# AI Services
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gemini_api_key: str
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elevenlabs_api_key: str = ""
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google_tts_credentials: str = ""
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# TTS Voice Configuration
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tts_provider: str = "gemini" # "gemini", "google", or "elevenlabs"
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google_tts_voices: dict[str, str] = {
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"en-US": "en-US-Neural2-D",
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"es-ES": "es-ES-Neural2-A",
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"fr-FR": "fr-FR-Neural2-A",
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"de-DE": "de-DE-Neural2-B"
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}
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# Deprecated: ElevenLabs voices are now fetched dynamically via the API.
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# This fallback map is only used by _get_elevenlabs_voice() when no voice_name is provided.
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elevenlabs_voices: dict[str, str] = {}
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# Gemini TTS Configuration
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gemini_tts_model: str = "gemini-3.1-flash-tts-preview"
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gemini_tts_default_voice: str = "Kore"
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gemini_tts_voices: list[str] = [
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"Zephyr", "Puck", "Charon", "Kore", "Fenrir", "Leda", "Orus", "Aoede",
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"Callirrhoe", "Autonoe", "Enceladus", "Iapetus", "Umbriel", "Algieba",
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"Despina", "Erinome", "Algenib", "Rasalgethi", "Laomedeia", "Achernar",
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"Alnilam", "Schedar", "Gacrux", "Pulcherrima", "Achird", "Zubenelgenubi",
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"Vindemiatrix", "Sadachbia", "Sadaltager", "Sulafat"
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]
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gemini_tts_languages: dict[str, str] = {
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"en": "en-US",
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"es": "es-US",
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"fr": "fr-FR",
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"de": "de-DE",
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"it": "it-IT",
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"pt": "pt-BR",
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"ja": "ja-JP",
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"ko": "ko-KR",
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"ar": "ar-EG",
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"hi": "hi-IN",
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"id": "id-ID",
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"nl": "nl-NL",
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"pl": "pl-PL",
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"ru": "ru-RU",
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"th": "th-TH",
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"tr": "tr-TR",
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"vi": "vi-VN",
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"ro": "ro-RO",
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"uk": "uk-UA",
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"bn": "bn-BD",
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"mr": "mr-IN",
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"ta": "ta-IN",
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"te": "te-IN",
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"zh": "zh-CN",
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"cs": "cs-CZ",
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"da": "da-DK",
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"fi": "fi-FI",
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"hu": "hu-HU",
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"no": "nb-NO",
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"sk": "sk-SK",
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"sv": "sv-SE",
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"es-419": "es-US",
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"pt-BR": "pt-BR",
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"fr-CA": "fr-CA",
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# Explicit region variants (added for locale-aware glossary support)
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"de-DE": "de-DE",
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"en-US": "en-US",
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"en-GB": "en-GB",
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"en-CA": "en-CA",
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"es-ES": "es-ES",
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"es-MX": "es-US",
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"fr-FR": "fr-FR",
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"it-IT": "it-IT",
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"ja-JP": "ja-JP",
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"ko-KR": "ko-KR",
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"nl-NL": "nl-NL",
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"pl-PL": "pl-PL",
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"cs-CZ": "cs-CZ",
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"tr-TR": "tr-TR",
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"id-ID": "id-ID",
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"pt-PT": "pt-PT",
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}
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gemini_tts_language_names: dict[str, str] = {
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"en": "English",
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"es": "Spanish",
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"fr": "French",
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"de": "German",
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"it": "Italian",
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"pt": "Portuguese",
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"ja": "Japanese",
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"ko": "Korean",
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"ar": "Arabic",
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"hi": "Hindi",
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"id": "Indonesian",
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"nl": "Dutch",
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"pl": "Polish",
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"ru": "Russian",
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"th": "Thai",
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"tr": "Turkish",
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"vi": "Vietnamese",
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"ro": "Romanian",
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"uk": "Ukrainian",
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"bn": "Bengali",
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"mr": "Marathi",
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"ta": "Tamil",
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"te": "Telugu",
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"zh": "Chinese",
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"cs": "Czech",
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"da": "Danish",
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"fi": "Finnish",
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"hu": "Hungarian",
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"no": "Norwegian",
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"sk": "Slovak",
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"sv": "Swedish",
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"es-419": "Spanish (Latin America)",
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"pt-BR": "Portuguese (Brazil)",
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"fr-CA": "French (Canada)",
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# Explicit region variants
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"de-DE": "German (Germany)",
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"en-US": "English (US)",
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"en-GB": "English (UK)",
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"en-CA": "English (Canada)",
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"es-ES": "Spanish (Spain)",
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"es-MX": "Spanish (Mexico)",
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"fr-FR": "French (France)",
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"it-IT": "Italian (Italy)",
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"ja-JP": "Japanese (Japan)",
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"ko-KR": "Korean (Korea)",
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"nl-NL": "Dutch (Netherlands)",
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"pl-PL": "Polish (Poland)",
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"cs-CZ": "Czech (Czech Republic)",
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"tr-TR": "Turkish (Turkey)",
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"id-ID": "Indonesian (Indonesia)",
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"pt-PT": "Portuguese (Portugal)",
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}
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gemini_tts_preview_samples: dict[str, str] = {
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"en": "This is a preview of the audio description voice.",
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"es": "Esta es una vista previa de la voz de audiodescripcion.",
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"fr": "Ceci est un apercu de la voix de l'audiodescription.",
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"de": "Dies ist eine Vorschau der Audiodeskriptionsstimme.",
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"it": "Questa e un'anteprima della voce dell'audiodescrizione.",
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"pt": "Esta e uma previa da voz da audiodescricao.",
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"ja": "これは音声解説の声のプレビューです。",
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"ko": "이것은 오디오 설명 음성의 미리보기입니다.",
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"ar": "هذه معاينة لصوت الوصف الصوتي.",
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"hi": "यह ऑडियो विवरण आवाज का पूर्वावलोकन है।",
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"id": "Ini adalah pratinjau suara deskripsi audio.",
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"nl": "Dit is een voorbeeld van de audiodescriptiestem.",
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"pl": "To jest podglad glosu audiodeskrypcji.",
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"ru": "Это предварительный просмотр голоса аудиоописания.",
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"th": "นี่คือตัวอย่างเสียงบรรยายภาพ",
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"tr": "Bu, sesli betimleme sesinin bir onizlemesidir.",
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"vi": "Day la ban xem truoc giong mo ta am thanh.",
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"ro": "Aceasta este o previzualizare a vocii descrierii audio.",
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"uk": "Це попередній перегляд голосу аудіоопису.",
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"bn": "এটি অডিও বর্ণনা ভয়েসের একটি প্রিভিউ।",
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"mr": "हे ऑडिओ वर्णन आवाजाचे पूर्वावलोकन आहे.",
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"ta": "இது ஆடியோ விளக்க குரலின் முன்னோட்டம்.",
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"te": "ఇది ఆడియో వివరణ స్వరం యొక్క ప్రివ్యూ.",
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"zh": "这是音频描述语音的预览。",
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"cs": "Toto je náhled hlasu zvukového popisu.",
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"da": "Dette er en forhåndsvisning af lydbeskrivelsesstemmen.",
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"fi": "Tämä on äänikuvauksen äänen esikatselu.",
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"hu": "Ez a hangos leírás hangjának előnézete.",
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"no": "Dette er en forhåndsvisning av lydbeskrivelsesstemmen.",
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"sk": "Toto je náhľad hlasu zvukového popisu.",
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"sv": "Det här är en förhandsgranskning av ljudbeskrivningsrösten.",
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"es-419": "Esta es una vista previa de la voz de audiodescripción.",
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"pt-BR": "Esta é uma prévia da voz da audiodescrição.",
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"fr-CA": "Ceci est un aperçu de la voix de l'audiodescription.",
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# Explicit region variants
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"de-DE": "Dies ist eine Vorschau der Audiodeskriptionsstimme.",
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"en-US": "This is a preview of the audio description voice.",
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"en-GB": "This is a preview of the audio description voice.",
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"en-CA": "This is a preview of the audio description voice.",
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"es-ES": "Esta es una vista previa de la voz de audiodescripción.",
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"es-MX": "Esta es una vista previa de la voz de audiodescripción.",
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"fr-FR": "Ceci est un aperçu de la voix de l'audiodescription.",
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"it-IT": "Questa è un'anteprima della voce dell'audiodescrizione.",
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"ja-JP": "これは音声解説の声のプレビューです。",
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"ko-KR": "이것은 오디오 설명 음성의 미리보기입니다.",
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"nl-NL": "Dit is een voorbeeld van de audiodescriptiestem.",
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"pl-PL": "To jest podgląd głosu audiodeskrypcji.",
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"cs-CZ": "Toto je náhled hlasu zvukového popisu.",
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"tr-TR": "Bu, sesli betimleme sesinin bir önizlemesidir.",
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"id-ID": "Ini adalah pratinjau suara deskripsi audio.",
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"pt-PT": "Esta é uma pré-visualização da voz da audiodescrição.",
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}
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# Gemini TTS Model Options
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gemini_tts_models: dict[str, str] = {
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"flash": "gemini-3.1-flash-tts-preview", # Fast, cost-efficient (Preview)
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"pro": "gemini-2.5-pro-tts", # Higher quality (GA)
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}
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# Gemini TTS Style Presets - prompts prepended to text for style control
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gemini_tts_style_prompts: dict[str, str] = {
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"neutral": "", # No modification
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"calm": "Speak in a calm, gentle, and soothing manner with a relaxed pace. ",
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"energetic": "Speak with energy and enthusiasm, maintaining an upbeat and dynamic tone. ",
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"professional": "Speak in a clear, professional, and authoritative manner suitable for corporate content. ",
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"warm": "Speak in a warm, friendly, and approachable manner as if speaking to a friend. ",
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"documentary": "Speak in a measured, informative tone similar to a documentary narrator, with clear enunciation and appropriate pauses. ",
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}
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# TTS Speed range configuration
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gemini_tts_speed_min: float = 0.5
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gemini_tts_speed_max: float = 2.0
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gemini_tts_speed_default: float = 1.0
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gemini_tts_speed_step: float = 0.1
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# Whisper Configuration (for pause point refinement)
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whisper_model: str = "medium" # Options: tiny, base, small, medium, large-v3
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whisper_max_search_window: float = 30.0 # Max seconds to search for speech gap after Gemini point
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whisper_sentence_gap_threshold: float = 0.5 # Gap duration to classify as sentence boundary
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whisper_phrase_gap_threshold: float = 0.3 # Gap duration to classify as phrase boundary
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whisper_min_gap_threshold: float = 0.15 # Minimum gap duration to consider
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# Forward-preferred snap windows (A2)
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whisper_snap_forward_window: float = 4.0 # Prefer boundary up to N seconds ahead of Gemini point
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whisper_snap_backward_window: float = 1.5 # Fall back to boundary up to N seconds behind
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# Adaptive silence buffer (A1)
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ad_silence_buffer_default: float = 0.5 # Base silence duration (s) before/after AD audio
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ad_silence_buffer_min_after: float = 0.1 # Minimum silence after AD audio
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# Minimum gap required at the chosen pause point (A3)
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ad_min_acceptable_gap: float = 0.2 # Seconds; points with shorter gaps trigger forward search
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# Cloud Run Service URLs (empty = use local processing)
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# When set, CPU-intensive work is offloaded to Cloud Run with autoscaling
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whisper_service_url: str = "" # e.g., "https://whisper-service-xxx.run.app"
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ffmpeg_service_url: str = "" # e.g., "https://ffmpeg-service-xxx.run.app"
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# Celery Worker Concurrency Settings
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# When using Cloud Run, workers just make HTTP calls so can handle more concurrent tasks
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# When running locally, concurrency is limited by CPU/RAM constraints
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#
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# Recommended settings:
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# Cloud Run mode: WHISPER_WORKER_CONCURRENCY=10, FFMPEG_WORKER_CONCURRENCY=20
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# Local mode: WHISPER_WORKER_CONCURRENCY=1, FFMPEG_WORKER_CONCURRENCY=2
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worker_concurrency: int = 8 # Main worker (default,ingest,notify,render)
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whisper_worker_concurrency: int = 1 # Whisper worker (default: 1 for local RAM constraints)
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ffmpeg_worker_concurrency: int = 4 # FFmpeg tasks on main worker
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tts_worker_concurrency: int = 8 # TTS worker
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# Email (Mailgun)
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mailgun_api_key: str = ""
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mailgun_domain: str = "mg.oliver.solutions"
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mailgun_from: str = "noreply@mg.oliver.solutions"
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email_from: str = "noreply@mg.oliver.solutions"
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client_base_url: str
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# Microsoft Authentication (Azure AD)
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azure_client_id: str = ""
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azure_authority: str = ""
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azure_redirect_uri: str = ""
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# Observability
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sentry_dsn: str = ""
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otel_exporter_otlp_endpoint: str = ""
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# AI Cost Tracker (direct HTTP — see services/cost_tracker.py)
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cost_tracker_base_url: str = ""
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cost_tracker_api_key: str = ""
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cost_tracker_source_app: str = "video-accessibility"
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cost_tracker_enabled: bool = True
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# Upload limits (T-14 — single source of truth)
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upload_max_video_bytes: int = 2 * 1024 * 1024 * 1024 # 2GB
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upload_signed_url_ttl_hours: int = 24 # signed URL lifetime
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# CORS - comma-separated list of allowed origins
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cors_origins: str = "http://localhost:5173,http://localhost:5174,http://localhost:3000,http://localhost:6001"
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@property
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def cors_origins_list(self) -> list[str]:
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"""Parse CORS origins from comma-separated string to list."""
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return [origin.strip() for origin in self.cors_origins.split(",") if origin.strip()]
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class Config:
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env_file = ".env"
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settings = Settings()
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def get_settings():
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"""Get settings instance - for dependency injection"""
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return settings
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