By default, generate them whenever the file is missing but adding a way
to override that with `validateflow,generate-expectations=true` to force
regenerating them or setting `validateflow,generate-expectations=false`
to disallow generating them (on CI servers for example)
Also update the validateflow documentation to take that into account
and remove references to pipeline.json file which is now gone!
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-devtools/-/merge_requests/200>
A TestClock will be used automatically when a scenario has a
`crank-clock` action.
And make `validate` and `debug-viewer` options features in meson,
no reason they weren't and now we require gst-check to build validate
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-devtools/-/merge_requests/182>
This way we can have a single file that wraps scenarios,
`gst-validate-1.0` arguments, as well as a configuration.
It changes the name of `description` of scenarios to use `meta`
The goal is to replace tests describes in python with dictionary
to fully self contained `.validatetest` files which look like:
```
meta,
handles-states=true,
ignore-eos=true,
gst-validate-args = {
"videotestsrc pattern=blue ! video/x-raw,format=I420,framerate=1/1 ! timeoverlay ! $(videosink) name=videosink allocation-meta-flags=0",
},
configs = {
"$(validateflow), pad=videosink:sink, buffers-checksum=true, ignored-fields={\"buffers=meta\", }",
}
play
seek, start=0.0, stop=5.0, flags=accurate+flush, rate=1.0
crank-clock, expected-elapsed-time=0.0
crank-clock, repeat=4, expected-elapsed-time=1.0
crank-clock, expected-elapsed-time=1.0
stop, on-message=eos
```
Added two properties to the plugin:
* ignored-event-types: A list of event types to be ignored when logging events
* logged-event-types: A list of event types to be logged when logging events
This commits also moves the "ignored-event-fields" property to using a proper
GstValueList for the list of event fields to be taken into account, instead
of the home grown separated by comas list of string, making the API more
uniform.
This also adds a simple helper method: `gst_validate_utils_get_strv`
This also adds the notion of global variables which will be useable
in config files too.
And add some documentation about default variables in scenarios
