Rust CLI that lists foxglove.CompressedVideo topics in an MCAP file or extracts them to MP4 using GStreamer.

mcap-foxglove-video-extract <mcap_file> [topic] [--output <output_dir>]

• No topic argument: list topics and durations.
• topic=all: extract every foxglove.CompressedVideo topic to MP4.
• Specific topic: extract only that topic.

Examples:

mcap-foxglove-video-extract potato.mcap
mcap-foxglove-video-extract potato.mcap video/UDPStream0/stream --output ./out