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
```
We do not have a way to know the format modifiers to use with string
functions provided by the system. `G_GUINT64_FORMAT` and other string
modifiers only work for glib string formatting functions. We cannot
use them for string functions provided by the stdlib. See:
https://developer.gnome.org/glib/stable/glib-Basic-Types.html#glib-Basic-Types.description
```
../validate/plugins/flow/formatting.c: In function 'format_number':
../validate/plugins/flow/formatting.c:68:22: error: unknown conversion type character 'l' in format [-Werror=format=]
sprintf (dest_str, "%" G_GUINT64_FORMAT, number);
^~~
In file included from /builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/include/glib-2.0/glib/gtypes.h:32,
from /builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/include/glib-2.0/glib/galloca.h:32,
from /builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/include/glib-2.0/glib.h:30,
from /builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/include/gstreamer-1.0/gst/gst.h:27,
from ../validate/plugins/flow/formatting.h:26,
from ../validate/plugins/flow/formatting.c:30:
/builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/lib/glib-2.0/include/glibconfig.h:69:28: note: format string is defined here
#define G_GUINT64_FORMAT "llu"
^
../validate/plugins/flow/formatting.c:68:22: error: too many arguments for format [-Werror=format-extra-args]
sprintf (dest_str, "%" G_GUINT64_FORMAT, number);
^~~
../validate/plugins/flow/formatting.c:68:22: error: unknown conversion type character 'l' in format [-Werror=format=]
In file included from /builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/include/glib-2.0/glib/gtypes.h:32,
from /builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/include/glib-2.0/glib/galloca.h:32,
from /builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/include/glib-2.0/glib.h:30,
from /builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/include/gstreamer-1.0/gst/gst.h:27,
from ../validate/plugins/flow/formatting.h:26,
from ../validate/plugins/flow/formatting.c:30:
/builds/nirbheek/cerbero/cerbero-build/dist/windows_x86_64/lib/glib-2.0/include/glibconfig.h:69:28: note: format string is defined here
#define G_GUINT64_FORMAT "llu"
^
../validate/plugins/flow/formatting.c:68:22: error: too many arguments for format [-Werror=format-extra-args]
sprintf (dest_str, "%" G_GUINT64_FORMAT, number);
^~~
```
Needed for https://gitlab.freedesktop.org/gstreamer/cerbero/merge_requests/419
