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There really is no point having the PTS delay over the frame interval;
it just adds unnecessary latency. This should probably be even lower to
improve streaming responsiveness.

For perfect rendering synchronisation, the change of window size must
be acknowledged after the last picture is rendered in the old size,
and before the first picture is rendered in the new size.

As of c9d6d95f, the window resize is
processed synchronously. This provides for the "after" requirement. But
it failed to address the "before" requirement: the video output thread
can end render a picture so soon after the resize so the window
callback thread has not had time to perform acknowledgement procedures.

This adds a callback to the window resize event which is called before
the display lock (or equivalent) is released. This is guaranteed to be
invoked before the video output thread has the opportunity to render
anything.

Other options were considered:

1) Invoking a callback to the window provider from the video output
   thread code code.
   -> This can delay the callback unreasonably.
   -> Taking the window lock on the vid...

Like all other hw plugins.

Without conditional activation of the plugins through autoconf, -rpath
is always defined when adding the plugin libtool archive target to
codec_LTLIBRARIES or nvdec_LTLIBRARIES. If the target's LDFLAGS is not
defined, it will also use AM_LDFLAGS by default.

Sort of revert 1d2b56c6 but it actually
finish the work done in ticket #9367 by removing the last recursive
makefile target in modules/.

It allows faster make (though not significant here) but most of all,
sharing the same variable definition scope in modules/ for all
makefiles.

In particular, this facilitate for future work implementing partial
linking at the module level, which actually needs the list of all
plugins being compiled.

The convenience library factors the mmal libs and the object between the
different plugins.

The plugin's values are not used anymore.

Use only the MMAL_CFLAGS/MMAL_LIBS instead of sharing the flags of a
non-existant plugin. In addition, LDFLAGS is for linker flags different
from the -l or -L ones, and -rpath only needs to be defined when using
conditional compilation from autoconf (LTLIB and VLC_ADD_PLUGIN) so the
MMAL_LIBS must go to LIBADD.

In prevision of the removal of the recursive Makefile.am, use the
MMAL_CFLAGS on every targets that needs them.

The MMAL_CFLAGS / MMAL_LIBS will be used in the Makefile.am instead of
the plugin defined flags, since there are multiple plugins, and in
addition of a HAVE_MMAL conditional.

In addition, -L flags are LIBADD flags, and not LDFLAGS flags, so it's
actually put into MMAL_LIBS instead of defining a MMAL_LDFLAGS.

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

qml/DragItem: Add the 'getSelectedInputItem' function
Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

And update the implementation
Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

ResumeDialog hides TopBar so need to provide placeholder CSD decorations
Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>

Signed-off-by: Pierre Lamot <pierre@videolabs.io>