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51 lines
1.5 KiB
51 lines
1.5 KiB
## LogReader
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Route is a class for conviently accessing all the [logs](/selfdrive/loggerd/) from your routes. The LogReader class reads the non-video logs, i.e. rlog.bz2 and qlog.bz2. There's also a matching FrameReader class for reading the videos.
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```python
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from tools.lib.route import Route
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from tools.lib.logreader import LogReader
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r = Route("4cf7a6ad03080c90|2021-09-29--13-46-36")
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# get a list of paths for the route's rlog files
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print(r.log_paths())
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# and road camera (fcamera.hevc) files
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print(r.camera_paths())
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# setup a LogReader to read the route's first rlog
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lr = LogReader(r.log_paths()[0])
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# print out all the messages in the log
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import codecs
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codecs.register_error("strict", codecs.backslashreplace_errors)
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for msg in lr:
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print(msg)
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# setup a LogReader for the route's second qlog
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lr = LogReader(r.log_paths()[1])
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# print all the steering angles values from the log
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for msg in lr:
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if msg.which() == "carState":
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print(msg.carState.steeringAngleDeg)
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```
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### MultiLogIterator
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`MultiLogIterator` is similar to `LogReader`, but reads multiple logs.
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```python
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from tools.lib.route import Route
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from tools.lib.logreader import MultiLogIterator
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# setup a MultiLogIterator to read all the logs in the route
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r = Route("4cf7a6ad03080c90|2021-09-29--13-46-36")
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lr = MultiLogIterator(r.log_paths())
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# print all the steering angles values from all the logs in the route
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for msg in lr:
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if msg.which() == "carState":
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print(msg.carState.steeringAngleDeg)
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```
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