Parameter Configuration of Video Analytics Tools in Detail
The tool provides a multi-level parameter system , mainly through the command line parameters and JSON configuration files to achieve flexible control :
Basic Operating Parameters
- Video Path: Necessary parameters, supports common formats such as MP4/MOV/AVI, etc.
- -output: Specify the directory where the results will be saved (default. /output)
- -duration: Limit analysis time (seconds), suitable for long video sampling
frame extraction control
- -frames-per-minute: Frame sampling rate (default 10 fps)
- -keyframe-only: Improve efficiency by extracting only I-frames
- -keep-frames: Preserve the extracted original image
Audio Processing Configuration
- -whisper-model: Specify model size (base/small/medium, etc.)
- -language: mandatory specification of transcription language (automatically detected by default)
Advanced Configuration Example
Create custom_config.json file definable:
- Visual analysis model selection (Ollama Vision et al.)
- Level of detail in natural language generation
- Number of parallel processing threads
Typical Scenario Configuration: Medium speech model + 5 frames/minute is recommended for conference recording; LARGE model + 15 frames/minute is recommended for movie and TV analysis.
This answer comes from the articleVideo Analyzer: analyzes video content and generates detailed descriptionsThe
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