CUETools.Codecs.FLAKE.FlakeWriter.output_frame_header C# (CSharp) Method

		unsafe void output_frame_header(FlacFrame frame, BitWriter bitwriter)
		{
			bitwriter.writebits(15, 0x7FFC);
			bitwriter.writebits(1, eparams.variable_block_size > 0 ? 1 : 0);
			bitwriter.writebits(4, frame.bs_code0);
			bitwriter.writebits(4, sr_code0);
			if (frame.ch_mode == ChannelMode.NotStereo)
				bitwriter.writebits(4, ch_code);
			else
				bitwriter.writebits(4, (int) frame.ch_mode);
			bitwriter.writebits(3, bps_code);
			bitwriter.writebits(1, 0);
			bitwriter.write_utf8(frame_count);

			// custom block size
			if (frame.bs_code1 >= 0)
			{
				if (frame.bs_code1 < 256)
					bitwriter.writebits(8, frame.bs_code1);
				else
					bitwriter.writebits(16, frame.bs_code1);
			}

			// custom sample rate
			if (sr_code1 > 0)
			{
				if (sr_code1 < 256)
					bitwriter.writebits(8, sr_code1);
				else
					bitwriter.writebits(16, sr_code1);
			}

			// CRC-8 of frame header
			bitwriter.flush();
			byte crc = crc8.ComputeChecksum(frame_buffer, 0, bitwriter.Length);
			bitwriter.writebits(8, crc);
		}