Summary

Fixes #138 issue with tape decoding where, in ld-decode-tools, ld-analyse contained a hack to preview a decoding path that ld-chroma-decoder did not support. Decode-Orc now implements this by improving the actual decoder (without requiring an ffmpeg processing loop) - and the orc-gui preview path is exactly the same as the decoder output path. So, it's not the same as the previous tool chain, but the results should be.

There was also a minor issue with parameters - the ffmpeg parameter for NTSC phase compensation was on by default, but off by default when the parameter editing window was open.

I added a bunch of unit testing to ffmpeg video sink, raw video sink and the underlying chroma decoder paths.

Issue #143 was around better support for agentic AI - now the project includes clear instructions for the agent to add additional colour to the existing documentation. I also updated the existing documentation to make everything clear.

Type of change

• Bug fix
• New feature
• Refactor
• Documentation
• Other

Validation

GUI testing and unit testing

Checklist

• Scope is focused and minimal
• Build passes locally
• Related docs were updated if needed
• Linked issue (if applicable)

Related issue

Closes #138 and #143