Peter Šurda
e5e9955cd9
- add a ffmpeg process to kivy tests if it detects running inside docker
- this approach can be reused for other tests that may benefit from a
video
- it may be possible to do this in bash, outside of python, but that
would exacerbate the process synchronisation issues, as outlined here:
- X server must be running before ffmpeg starts, otherwise ffmpeg
can't record and quits
- ffmpeg must end before the X server ends, as otherwise it segfaults
and video will be incomplete
- ffmpeg must start before the actual tests start and stop after the
tests stop, otherwise a part of the tests will be missing from the
recording
- this approach I chose here avoids most synchronisation issues.
If ffmpeg takes more than 2 seconds to start recording (unlikely), a
part of the video will be missing. Also if for some reason ffmpeg is
too slow, then also we may end up with a truncated video, at the end.
- I chose lossless vp9 codec with webm format, this appears to work on
firefox and chrome. Safari refuses to show the video even though it
should be supported.
19 lines
389 B
Docker
19 lines
389 B
Docker
# A container for buildbot
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FROM ubuntu:bionic AS kivy
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ENV DEBIAN_FRONTEND=noninteractive
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ENV SKIPCACHE=2022-07-20
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RUN apt-get update
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RUN apt-get install -yq \
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build-essential libcap-dev libssl-dev \
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libmtdev-dev libpq-dev \
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python3-dev python3-pip python3-virtualenv \
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xvfb ffmpeg
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RUN ln -sf /usr/bin/python3 /usr/bin/python
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RUN pip3 install --upgrade setuptools pip
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