parse_buffering_stats

Description:

public void parse_buffering_stats (out BufferingMode mode, out int avg_in, out int avg_out, out int64 buffering_left)

Extracts the buffering stats values from this.

this	A valid Message of type GST_MESSAGE_BUFFERING.
mode	a buffering mode, or `null`
avg_in	the average input rate, or `null`
avg_out	the average output rate, or `null`
buffering_left	amount of buffering time left in milliseconds, or `null`