get file_size asize
math vs_offset = 0
math vlt = 1
math clt = 2
math channels = 0
math str = 0
math vs = 0
math svs = 0
math vsf = 0
for i = 0 < vlt
	for j = 0 < clt
		goto vs_offset
		for k = 0 < 4
			get id_byte byte
			putarray 1 k id_byte
		next k
		getarray char_01 1 0
		getarray char_02 1 1
		getarray char_03 1 2
		getarray char_04 1 3
		if char_01 == 0x53
		if char_02 == 0x54
		if char_03 == 0x52
			print " blocked(a header is provided every 2048 bytes that contains relevant info regarding that byte) STREAM format "
			if i = 0
				if char_04 == 0x4c
					print " left-channel block "
					math channels + 1
				endif
				if char_04 == 0x4d
					print " mono-channel block "
					math channels + 1
				endif
				if char_04 == 0x52
					print " right-channel block "
					math channels + 1
				endif
			endif
			math str = 1
		endif
		endif
		endif
		if char_01 == 0x56
		if char_02 == 0x53
		if char_03 == 0x00
		if char_04 == 0x00
			print " blocked(a header is provided every 2048 bytes that contains relevant info regarding that byte) VAG-STREAM format "
			math vs = 1
		endif
		endif
		endif
		endif
		if char_01 == 0x53
		if char_02 == 0x56
		if char_03 == 0x53
		if char_04 == 0x00
			print " normal(as in, only the header is available from the first byte not every 2048 bytes) SEQ-VAG-STREAM format "
			math svs = 1
		endif
		endif
		endif
		endif
		if char_01 == 0x56
		if char_02 == 0x53
		if char_03 == 0x46
		if char_04 == 0x00
			print " normal(as in, only the header is available from the first byte not every 2048 bytes) VAG-STREAM format "
			math vsf = 1
		endif
		endif
		endif
		endif
		if str = 1
			get interleave_per_block long
			get remaining_block_numbers long
			get str_03 long
			get block_config long
			get str_05 long
			get str_06 long
			get str_07 long
			if i = 0
				xmath vlt "remaining_block_numbers + 1"
				if char_04 == 0x4d
					math clt = channels
				else
					if j = 1
						math clt = channels
					endif
				endif
			endif
		endif
		if vs = 1
			get block_config long
			# ^ 0-1 is mono/stereo flag, and not much is known beyond that
			get current_block_number long
			get remaining_block_numbers long
			get sample_rate_frequency long
			get volume_number long
			get vs_06 long
			get vs_07 long
			if i = 0
				if j = 0
					xmath channels "(block_config & 1) + 1"
					math vlt = remaining_block_numbers
					math clt = channels
				endif
			endif
		endif
		if svs = 1
			get stream_config long
			# ^ 0-1 is mono/stereo flag, 2 is loop flag, again, nothing known beyond that
			get minimum_loop_sample_within_stream long
			get maximum_samples_within_stream long
			get sample_rate_frequency long
			get svs_05 long
			get svs_file_number long
			get volume_number long
			if i = 0
				if j = 0
					math vlt = 1
					math clt = 1
				endif
			endif
		endif
		if vsf = 1
			get vsf_size long
			get vsf_file_number long
			get vsf_03 long
			get maximum_samples_within_stream long
			get vsf_05 long
			get minimum_loop_sample_within_stream long
			get stream_config long
			# ^ 0-1 is mono/stereo flag, 2 is loop flag,
			# although 0x10 exists as an additional flag as well
			get sample_rate_frequency long
			get volume_number long
			get vsf_10 long
			if i = 0
				if j = 0
					math vlt = 1
					math clt = 1
				endif
			endif
		endif
		math vs_offset >> 11
		math vs_offset + 1
		math vs_offset << 11
	next j
	if i = 0
		if svs != 1 && vsf != 1
			xmath vs_size "(vlt << 11) * channels"
			if file_size == vs_size
				print " overall stream size(with blocked layout) is correct "
			endif
		endif
	endif
next i