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3b7debe676
Add an instrument which wraps the devlib screencapture poller, which allows us to capture a screenshot from the device every `period`. The `period` is configurable based on the user requirements. All captured screenshots are named according to the timestamp on the device, and are placed into an output directory (screen-capture) within the job directory.
58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
# Copyright 2018 ARM Limited
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import os
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from devlib.trace.screencapture import ScreenCaptureCollector
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from wa import Instrument, Parameter
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class ScreenCaptureInstrument(Instrument):
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name = 'screen_capture'
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description = """
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A simple instrument which captures the screen on the target devices with a user-specified period.
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Please note that if a too short period is specified, then this
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instrument will capture the screen as fast as possible, rather
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than at the specified periodicity.
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"""
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parameters = [
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Parameter('period', kind=int, default=10,
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description="""
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Period (in seconds) at which to capture the screen on the target.
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"""),
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]
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def __init__(self, target, **kwargs):
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super(ScreenCaptureInstrument, self).__init__(target, **kwargs)
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self.collector = None
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def setup(self, context):
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# We need to create a directory for the captured screenshots
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output_path = os.path.join(context.output_directory, "screen-capture")
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os.mkdir(output_path)
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self.collector = ScreenCaptureCollector(self.target,
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output_path,
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self.period)
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def start(self, context):
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self.collector.start()
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def stop(self, context):
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self.collector.stop()
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