Add RFC 6381 codec info BitDepth and PixelFormat to video-audit, bids-inject, and split-video

[vmdocua]

Populate VideoCodecRFC6381 / AudioCodecRFC6381 / BitDepth / PixelFormatin BIDS sidecar JSON. Add RFC 6381 codec string support to the BIDS sidecar JSON written by bids-inject.

Tasks:

• Make bids_inject to internally use ffprobe on the source video to populate VideoCodecRFC6381 AudioCodecRFC6381, BitDepth, and PixelFormat in metadata. In future it is going to be replaced by dedicated new columns in videos.tsv.
• Extend AudioInfo and VideoInfo models in video_audit with codec_rfc6381 fields and the helpers audio_codec_to_rfc6381 / video_codec_to_rfc6381 to compute them.
• Populate BitDepth and PixelFormat in BIDS sidecar JSON.
• Add tests for RFC 6381 propagation, sidecar model population, and the error-recovery path.
• Manually test new functionality on typhon for sub-qa/ses-20250814 in the ~/branches/QA-reprostim dataset.

In continuation to:

• Develop a script to "slice" videos to "match" DICOM series timing #14
• Keep bids-inject sidecar JSON format in sync with BIDS BEP044/BEP047 WiP spec #251
• Add common media file definitions for BEP044/BEP047 bids-standard/bids-specification#2367

[github-actions]

🚀 PR was released in 0.7.33 🚀