The type of a GST_MESSAGE_PROGRESS. The progress messages inform the application of the status of asynchronous tasks.
A new task started.
A task completed and a new one continues.
A task completed.
A task was canceled.
A task caused an error. An error message is also posted on the bus.
The type of a GST_MESSAGE_PROGRESS. The progress messages inform the application of the status of asynchronous tasks.