Flush size bytes from the pad data.
This function should be called with pads STREAM_LOCK held, such as in the callback.
MT safe.
the data to use
the number of bytes to flush
The number of bytes flushed This can be less than size and is 0 if the pad was end-of-stream.
Flush size bytes from the pad data.
This function should be called with pads STREAM_LOCK held, such as in the callback.
MT safe.