Peek at the buffer currently queued in data. This function should be called with the pads STREAM_LOCK held, such as in the callback handler.
MT safe.
the data to use
The buffer in data or null if no buffer is queued. should unref the buffer after usage.
Peek at the buffer currently queued in data. This function should be called with the pads STREAM_LOCK held, such as in the callback handler.
MT safe.