Python 2 is EOL sice 2020 [1], it's still available on distros, but may not
be installed by default (as being replaced by python3).
Thus remove compatibility imports:
from __future__ import print_function
from __future__ import absolute_import
Tested with python3 -m py_compile.
[1] https://www.python.org/doc/sunset-python-2/
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
The older version of flake8 on the autobuilders does not support typehints.
As such, flake8 throws the following error when scanning sample_gst1_python:
E999 SyntaxError: invalid syntax
Remove the typehinting from on_message to fix this issue.
Signed-off-by: Adam Duskett <Aduskett@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The config is missing the following packages:
- BR2_PACKAGE_GST1_PLUGINS_BASE
This is needed for the videotestsrc plugin which provides
videotestsrc.
- BR2_PACKAGE_GST1_PLUGINS_BAD
This is needed for the debugutils plugin which provides
fakevideosink.
- BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VIDEOTESTSRC
videotestsrcplugin used by the example pipeline.
- BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_DEBUGUTILS
fakevideosink plugin used by the example pipeline.
The sample was also amended to fix:
- no call to main.
- using autovideosink instead of fakevideosink. Using Fakevideoskink
is preferred because its primary purpose is for debugging and sample
pipelines. Autovideosink does not work because there is no video
output device.
- No function on_message. Without this function, the script fails
because of the missing function.
- The script sets the pipeline to Gst.State.EOS instead of
Gst.State.NULL which results in a failed pipeline state. When the
state is set to NULL, gstreamer automatically calls EOS. Manually
setting the pipeline state to EOS results in the following error:
Trying to dispose element sink, but it is in PLAYING instead of
the NULL state. You need to explicitly set elements to the NULL
state before dropping the final reference, to allow them to
clean up. A refcounting bug may also cause this problem in the
application or some element.
In addition, the default timeout is set too low and would result in a
test failure, this has been changed to 200 seconds.
These issues are now properly fixed, and the sample script passes.
Signed-off-by: Adam Duskett <Aduskett@gmail.com>
[yann.morin.1998@free.fr:
- meld the two patches together
- add the print() in the on_demand callback
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Fixes the following flake8 warnings:
support/testing/tests/package/sample_gst1_python.py:5:1: F401 'time' imported but unused
support/testing/tests/package/sample_gst1_python.py:7:1: E402 module level import not at top of file
support/testing/tests/package/sample_gst1_python.py:21:12: W292 no newline at end of file
For the E402 warning, we add a "noqa" marker, as we really want the
gi.require_version() to be before.
There is still one remaining warning to be fixed:
support/testing/tests/package/sample_gst1_python.py:18:28: F821 undefined name 'on_message'
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This test case runs a simple pipeline for 100 frames to ensure that
gst1-python works properly.
Signed-off-by: Adam Duskett <Aduskett@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
