the installer had an unclean exit code (ie. death by signal)
an error occurred during the installation. If this happens, the user has already seen an error message and another one should not be displayed
the helper script to call the actual installer is not installed
a previously-started plugin installation is still in progress, try again later
some internal failure has occurred when trying to start the installer
the helper returned an invalid status code
no appropriate installation candidate for any of the requested plugins could be found. Only return this if nothing has been installed. Return #GST_INSTALL_PLUGINS_PARTIAL_SUCCESS if some (but not all) of the requested plugins could be installed.
some of the requested plugins could be installed, but not all
returned by gst_install_plugins_async() to indicate that everything went fine so far and the provided callback will be called with the result of the installation later
all of the requested plugins could be installed
the user has aborted the installation
Result codes returned by gst_install_plugins_async() and gst_install_plugins_sync(), and also the result code passed to the #GstInstallPluginsResultFunc specified with gst_install_plugins_async().
These codes indicate success or failure of starting an external installer program and to what extent the requested plugins could be installed.