name: VideoPreprocessor llm: ${sub|gpt4o} use_cache: true scene_detect_threshold: 27 frame_extraction_interval: 5 stt: name: STT endpoint: ${env| custom_openai_endpoint, https://api.openai.com/v1} api_key: ${env| custom_openai_key, openai_api_key} output_parser: name: DictParser text_encoder: ${sub| text_encoder}