Frequently Asked Question
Manual resolution, 4K, transcoding, transmuxing, and transrating
Last Updated 22 days ago
Manual resolution and advanced media processing options help match the source format to what the VMS/NVR can decode, display and record reliably.


Definitions
- Transcoding: decode and re-encode to a different codec or format.
- Transmuxing: change container or transport while preserving encoded media where possible.
- Transrating: adjust bitrate while preserving the desired output format.
- Scaling: change output resolution, including 4K or reduced profiles.
Recommended approach
- Use the simplest processing path that works with the target VMS/NVR.
- Avoid unnecessary transcoding when source and recorder formats already match.
- For 4K, test CPU/GPU usage and recorder storage bandwidth.
- For multi-stream deployments, test all streams running together.
Recorder compatibility
- Some recorders limit maximum resolution, bitrate, frame rate or codec profile.
- If a stream fails, start with lower resolution and H.264, then increase quality step by step.
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