Mar 27, 2023 · Using mcap info and ros2 bag info -s mcap works with no problems, but I need to do this inside a python script, and thus, would love to have it as part of the API

"""script that reads ROS2 messages from an MCAP bag using the rosbag2_py API."""

samialperen on Jan 18, 2024 I have recorded mcap files with ros2 bag record as follows ros2 bag record -s mcap /my_topic I have verified that on Foxglove, I can read these mcap files without any problem. …

Oct 24, 2024 · Nope, this is not supported in Foxglove. Strings that are invalid UTF8 will probably not work. If they do, then you are free to interpret the string data in the user script however you like. But …

Sep 16, 2025 · The command finishes successfully and I can look at the trimmed MCAP file. The problem comes from mcap filter appearing to drop topics that have no messages during the specified …

MCAP is a modular, performant, and serialization-agnostic container file format, useful for pub/sub and robotics applications. - mcap/typescript/examples/flatbufferswriter/scripts/flatbufferUtils.ts at main · …

NOTE: I noticed that cached IDs was a problem after I did not cache them myself in a python script, and resulted in running over the limit for total number of schemas / channel IDs (which is u16::MAX). 😬 So …

Mar 29, 2022 · Building a nice python API for mcap manipulation will probably be really nice for users. Once that's done, it's easy to implement a command-line filter tool in Python, which would also …

Jan 10, 2023 · Just trying to think through a bit how this would work – would the downsample operations be per-topic, per-channel, or per every message in the file? How would you specify these things at …

MCAP is a modular, performant, and serialization-agnostic container file format for pub/sub messages, primarily intended for use in robotics applications. - TypeScript v0.2.1 by jtbandes · Pull Request …