[ CCode ( cname = "gst_codec_utils_opus_create_header" ) ]
[ Version ( since = "1.8" ) ]
public Buffer codec_utils_opus_create_header (uint32 rate, uint8 channels, uint8 channel_mapping_family, uint8 stream_count, uint8 coupled_count, uint8[]? channel_mapping, uint16 pre_skip, int16 output_gain)