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% Version 3.3.2 prologue for troff files.
%

/#copies 1 store
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/R  /Times-Roman def
/I  /Times-Italic def
/B  /Times-Bold def
/BI /Times-BoldItalic def
/H  /Helvetica def
/HI /Helvetica-Oblique def
/HB /Helvetica-Bold def
/HX /Helvetica-BoldOblique def
/CW /Courier def
/CO /Courier def
/CI /Courier-Oblique def
/CB /Courier-Bold def
/CX /Courier-BoldOblique def
/PA /Palatino-Roman def
/PI /Palatino-Italic def
/PB /Palatino-Bold def
/PX /Palatino-BoldItalic def
/Hr /Helvetica-Narrow def
/Hi /Helvetica-Narrow-Oblique def
/Hb /Helvetica-Narrow-Bold def
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/KR /Bookman-Light def
/KI /Bookman-LightItalic def
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/NR /NewCenturySchlbk-Roman def
/NI /NewCenturySchlbk-Italic def
/NB /NewCenturySchlbk-Bold def
/NX /NewCenturySchlbk-BoldItalic def
/ZD /ZapfDingbats def
/ZI /ZapfChancery-MediumItalic def
/S  /S def
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	addmetrics
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/addmetrics {
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/w {neg moveto show} bind def
/m {neg dup /y exch def moveto} bind def
/done {/lastpage where {pop lastpage} if} def

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/changefont {
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/sf {f} bind def

/cf {
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	newdict /Metrics entries dict put
	newdict /Metrics get
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%
% A few arrays used to adjust reference points and character widths in some
% of the printer resident fonts. If square roots are too high try changing
% the lines describing /radical and /radicalex to,
%
%	/radical	[0 -75 550 0]
%	/radicalex	[-50 -75 500 0]
%
% Move braceleftbt a bit - default PostScript character is off a bit.
%

/Sdefs [
	/bracketlefttp		[201 500]
	/bracketleftbt		[201 500]
	/bracketrighttp		[-81 380]
	/bracketrightbt		[-83 380]
	/braceleftbt		[203 490]
	/bracketrightex		[220 -125 500 0]
	/radical		[0 0 550 0]
	/radicalex		[-50 0 500 0]
	/parenleftex		[-20 -170 0 0]
	/integral		[100 -50 500 0]
	/infinity		[10 -75 730 0]
] def

/S1defs [
	/underscore		[0 80 500 0]
	/endash			[7 90 650 0]
] def
%
% Tries to round clipping path dimensions, as stored in array pagebbox, so they
% match one of the known sizes in the papersizes array. Lower left coordinates
% are always set to 0.
%

/roundpagebbox {
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	/papersizes [8.5 inch 11 inch 14 inch 17 inch] def

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	pagebbox dup 3 get mappapersize 3 exch put
    end
} bind def

%%EndProlog
%%BeginSetup
mark
%
% Encoding vector and redefinition of findfont for the ISO Latin1 standard.
% The 18 characters missing from ROM based fonts on older printers are noted
% below.
%

/ISOLatin1Encoding [
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
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	/space
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	/quotedbl
	/numbersign
	/dollar
	/percent
	/ampersand
	/quoteright
	/parenleft
	/parenright
	/asterisk
	/plus
	/comma
	/minus
	/period
	/slash
	/zero
	/one
	/two
	/three
	/four
	/five
	/six
	/seven
	/eight
	/nine
	/colon
	/semicolon
	/less
	/equal
	/greater
	/question
	/at
	/A
	/B
	/C
	/D
	/E
	/F
	/G
	/H
	/I
	/J
	/K
	/L
	/M
	/N
	/O
	/P
	/Q
	/R
	/S
	/T
	/U
	/V
	/W
	/X
	/Y
	/Z
	/bracketleft
	/backslash
	/bracketright
	/asciicircum
	/underscore
	/quoteleft
	/a
	/b
	/c
	/d
	/e
	/f
	/g
	/h
	/i
	/j
	/k
	/l
	/m
	/n
	/o
	/p
	/q
	/r
	/s
	/t
	/u
	/v
	/w
	/x
	/y
	/z
	/braceleft
	/bar
	/braceright
	/asciitilde
	/.notdef
	/.notdef
	/.notdef
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	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
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	/.notdef
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	/dotlessi
	/grave
	/acute
	/circumflex
	/tilde
	/macron
	/breve
	/dotaccent
	/dieresis
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	/ring
	/cedilla
	/.notdef
	/hungarumlaut
	/ogonek
	/caron
	/space
	/exclamdown
	/cent
	/sterling
	/currency
	/yen
	/brokenbar		% missing
	/section
	/dieresis
	/copyright
	/ordfeminine
	/guillemotleft
	/logicalnot
	/hyphen
	/registered
	/macron
	/degree			% missing
	/plusminus		% missing
	/twosuperior		% missing
	/threesuperior		% missing
	/acute
	/mu			% missing
	/paragraph
	/periodcentered
	/cedilla
	/onesuperior		% missing
	/ordmasculine
	/guillemotright
	/onequarter		% missing
	/onehalf		% missing
	/threequarters		% missing
	/questiondown
	/Agrave
	/Aacute
	/Acircumflex
	/Atilde
	/Adieresis
	/Aring
	/AE
	/Ccedilla
	/Egrave
	/Eacute
	/Ecircumflex
	/Edieresis
	/Igrave
	/Iacute
	/Icircumflex
	/Idieresis
	/Eth			% missing
	/Ntilde
	/Ograve
	/Oacute
	/Ocircumflex
	/Otilde
	/Odieresis
	/multiply		% missing
	/Oslash
	/Ugrave
	/Uacute
	/Ucircumflex
	/Udieresis
	/Yacute			% missing
	/Thorn			% missing
	/germandbls
	/agrave
	/aacute
	/acircumflex
	/atilde
	/adieresis
	/aring
	/ae
	/ccedilla
	/egrave
	/eacute
	/ecircumflex
	/edieresis
	/igrave
	/iacute
	/icircumflex
	/idieresis
	/eth			% missing
	/ntilde
	/ograve
	/oacute
	/ocircumflex
	/otilde
	/odieresis
	/divide			% missing
	/oslash
	/ugrave
	/uacute
	/ucircumflex
	/udieresis
	/yacute			% missing
	/thorn			% missing
	/ydieresis
] def

/NewFontDirectory FontDirectory maxlength dict def

%
% Apparently no guarantee findfont is defined in systemdict so the obvious
%
%	systemdict /findfont get exec
%
% can generate an error. So far the only exception is a VT600 (version 48.0).
%

userdict /@RealFindfont known not {
	userdict begin
		/@RealFindfont systemdict begin /findfont load end def
	end
} if

/findfont {
	dup NewFontDirectory exch known not {
		dup
		%dup systemdict /findfont get exec	% not always in systemdict
		dup userdict /@RealFindfont get exec
		dup /Encoding get StandardEncoding eq {
			dup length dict begin
				{1 index /FID ne {def}{pop pop} ifelse} forall
				/Encoding ISOLatin1Encoding def
				currentdict
			end
			/DummyFontName exch definefont
		} if
		NewFontDirectory 3 1 roll put
	} if
	NewFontDirectory exch get
} bind def

setup
%%EndSetup
%%Page: 1 1
/saveobj save def
mark
1 pagesetup
12 /Times-Bold f
(Ppmtoyuv User) 2266 1230 w
(Manual) 3092 1230 w
10 /Times-Bold f
(ppmtoyuv) 720 1920 w
10 /Times-Roman f
(Updated: 06 June 2005) 720 2076 w
(Table Of Contents) 720 2196 w
10 /Times-Bold f
(NAME) 720 2436 w
10 /Times-Roman f
(ppmtoyuv \255 convert a PPM image to an Abekas YUV file) 720 2592 w
10 /Times-Bold f
(SYNOPSIS) 720 2832 w
(ppmtoyuv) 720 2988 w
10 /Times-Roman f
([) 1179 2988 w
10 /Times-Italic f
(ppmfile) 1212 2988 w
10 /Times-Roman f
(]) 1512 2988 w
10 /Times-Bold f
(DESCRIPTION) 720 3228 w
10 /Times-Roman f
(This program is part of Netpbm.) 720 3420 w
10 /Times-Bold f
(ppmtoyuv) 720 3576 w
10 /Times-Roman f
(reads a PPM image as input and produces an Abekas YUV file as output.) 1179 3576 w
(The) 720 3732 w
(output) 908 3732 w
(file) 1197 3732 w
(contains) 1363 3732 w
(a) 1729 3732 w
(raster) 1806 3732 w
(of) 2060 3732 w
(four) 2176 3732 w
(byte) 2375 3732 w
(YUV) 2580 3732 w
(codes,) 2829 3732 w
(each) 3114 3732 w
(uniquely) 3329 3732 w
(associated) 3712 3732 w
(with) 4156 3732 w
(two) 4368 3732 w
(side\255by\255side) 4552 3732 w
(pixels) 720 3852 w
(in) 993 3852 w
(the) 1105 3852 w
(image.) 1261 3852 w
(The) 1589 3852 w
(raster) 1778 3852 w
(contains) 2033 3852 w
(rows) 2400 3852 w
(in) 2628 3852 w
(order) 2740 3852 w
(from) 2984 3852 w
(top) 3212 3852 w
(to) 3374 3852 w
(bottom,) 3486 3852 w
(and) 3829 3852 w
(within) 4007 3852 w
(each) 4297 3852 w
(row) 4513 3852 w
(columns) 4701 3852 w
(from left to right.) 720 3972 w
(So the output file size in bytes is twice the number of pixels in the image.) 1464 3972 w
(Each) 720 4128 w
(YUV) 950 4128 w
(code) 1197 4128 w
(is) 1416 4128 w
(associated) 1514 4128 w
(with) 1955 4128 w
(two) 2164 4128 w
(pixels) 2345 4128 w
(from) 2615 4128 w
(the) 2840 4128 w
(input) 2993 4128 w
(image) 3230 4128 w
(that) 3505 4128 w
(we) 3686 4128 w
(will) 3833 4128 w
(call) 4020 4128 w
(the) 4195 4128 w
(left) 4348 4128 w
(pixel) 4512 4128 w
(and) 4743 4128 w
(the) 4918 4128 w
(right) 720 4248 w
(pixel.) 944 4248 w
(The) 1229 4248 w
(2nd) 1419 4248 w
(byte) 1604 4248 w
(of) 1811 4248 w
(the) 1929 4248 w
(code) 2086 4248 w
(is) 2309 4248 w
(the) 2411 4248 w
(Y) 2568 4248 w
(value) 2675 4248 w
(of) 2926 4248 w
(the) 3044 4248 w
(left) 3201 4248 w
(pixel.) 3369 4248 w
(The) 3654 4248 w
(4th) 3844 4248 w
(byte) 4007 4248 w
(of) 4214 4248 w
(the) 4332 4248 w
(code) 4489 4248 w
(is) 4711 4248 w
(the) 4812 4248 w
(Y) 4968 4248 w
(value) 720 4368 w
(of) 964 4368 w
(the) 1075 4368 w
(right) 1225 4368 w
(pixel.) 1442 4368 w
(The) 1720 4368 w
(1st) 1903 4368 w
(byte) 2048 4368 w
(of) 2248 4368 w
(the) 2360 4368 w
(code) 2511 4368 w
(is) 2728 4368 w
(an) 2824 4368 w
(average) 2947 4368 w
(of) 3285 4368 w
(the) 3397 4368 w
(U) 3548 4368 w
(value) 3649 4368 w
(of) 3894 4368 w
(the) 4006 4368 w
(pixel) 4157 4368 w
(to) 4386 4368 w
(the) 4493 4368 w
(left) 4644 4368 w
(of) 4806 4368 w
(the) 4918 4368 w
(left) 720 4488 w
(pixel,) 890 4488 w
(the) 1151 4488 w
(left) 1309 4488 w
(pixel,) 1478 4488 w
(and) 1739 4488 w
(the) 1919 4488 w
(right) 2077 4488 w
(pixel.) 2302 4488 w
(The) 2588 4488 w
(3rd) 2779 4488 w
(byte) 2948 4488 w
(of) 3156 4488 w
(the) 3275 4488 w
(code) 3433 4488 w
(is) 3657 4488 w
(analogous) 3760 4488 w
(for) 4201 4488 w
(V) 4353 4488 w
(values.) 4461 4488 w
(These) 4802 4488 w
(averages) 720 4608 w
(are) 1100 4608 w
(weighted) 1253 4608 w
(arithmetic) 1651 4608 w
(means) 2088 4608 w
(where) 2375 4608 w
(the) 2650 4608 w
(left) 2804 4608 w
(pixel) 2969 4608 w
(is) 3201 4608 w
(weighted) 3300 4608 w
(double) 3698 4608 w
(what) 4002 4608 w
(the) 4228 4608 w
(other) 4382 4608 w
(two) 4619 4608 w
(pixels) 4801 4608 w
(are weighted.) 720 4728 w
(This) 720 4884 w
(format) 926 4884 w
(is) 1220 4884 w
(reminiscent) 1315 4884 w
(of) 1809 4884 w
(but) 1921 4884 w
(rather) 2078 4884 w
(different) 2339 4884 w
(from) 2711 4884 w
(the) 2934 4884 w
(common) 3085 4884 w
(YUV) 3464 4884 w
(4:2:0) 3709 4884 w
(format) 3944 4884 w
(\(aka) 4239 4884 w
(YUV) 4439 4884 w
(420\)) 4684 4884 w
(and) 4896 4884 w
(the) 720 5004 w
(similar) 872 5004 w
(YUV) 1180 5004 w
(4:4:4,) 1426 5004 w
(YUV) 1687 5004 w
(4:2:2,) 1933 5004 w
(YUV) 2194 5004 w
(4:1:1,) 2440 5004 w
(YUV) 2701 5004 w
(4:1:1s,) 2947 5004 w
(and) 3247 5004 w
(YUV) 3421 5004 w
(4:1:0.) 3667 5004 w
(In) 3953 5004 w
(YUV) 4066 5004 w
(4:2:0,) 4312 5004 w
(the) 4572 5004 w
(raster) 4723 5004 w
(is) 4973 5004 w
(different) 720 5124 w
(for) 1101 5124 w
(even) 1255 5124 w
(numbered) 1481 5124 w
(lines) 1918 5124 w
(and) 2145 5124 w
(odd) 2327 5124 w
(numbered) 2515 5124 w
(lines.) 2952 5124 w
(On) 3229 5124 w
(even) 3389 5124 w
(numbered) 3615 5124 w
(lines,) 4052 5124 w
(there) 4304 5124 w
(are) 4542 5124 w
(twice) 4702 5124 w
(as) 4957 5124 w
(many) 720 5244 w
(bits) 970 5244 w
(for) 1143 5244 w
(Y) 1287 5244 w
(of) 1387 5244 w
(each) 1498 5244 w
(pixel) 1708 5244 w
(as) 1936 5244 w
(for) 2047 5244 w
(U) 2191 5244 w
(or) 2291 5244 w
(V.) 2402 5244 w
(On) 2552 5244 w
(odd) 2702 5244 w
(numbered) 2880 5244 w
(lines,) 3307 5244 w
(there) 3549 5244 w
(are) 3776 5244 w
(the) 3925 5244 w
(same) 4075 5244 w
(number) 4308 5244 w
(of) 4641 5244 w
(bits) 4752 5244 w
(for) 4924 5244 w
(Y as on even numbered lines, but no bits at all for U and V.) 720 5364 w
10 /Times-Bold f
(SEE ALSO) 720 5604 w
10 /Times-Roman f
(yuvtoppm, ppmtoeyuv, ppmtoyuvsplit, ppm) 720 5760 w
10 /Times-Bold f
(AUTHOR) 720 6000 w
10 /Times-Roman f
(Marc) 720 6192 w
(Boucher) 967 6192 w
(marc@PostImage.COM,) 1342 6192 w
(based) 2370 6192 w
(on) 2634 6192 w
(Example) 2771 6192 w
(Conversion) 3164 6192 w
(Program,) 3663 6192 w
(A60/A64) 4070 6192 w
(Digital) 4480 6192 w
(Video) 4796 6192 w
(Interface Manual, page 69.) 720 6312 w
(Copyright \(C\) 1991 by DHD PostImage Inc.) 720 6468 w
(Copyright \(C\) 1987 by Abekas Video Systems Inc.) 720 6624 w
10 /S1 f
(________________________________________________________________________) 720 6744 w
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%%EndPage: 1 1
%%Page: 2 2
/saveobj save def
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2 pagesetup
10 /Times-Roman f
(\255 2 \255) 2797 480 w
10 /Times-Bold f
(Table Of Contents) 720 840 w
10 /LucidaSansUnicode22 f
(\031) 720 1032 w
10 /Times-Roman f
(NAME) 970 1032 w
10 /LucidaSansUnicode22 f
(\031) 720 1188 w
10 /Times-Roman f
(SYNOPSIS) 970 1188 w
10 /LucidaSansUnicode22 f
(\031) 720 1344 w
10 /Times-Roman f
(DESCRIPTION) 970 1344 w
10 /LucidaSansUnicode22 f
(\031) 720 1500 w
10 /Times-Roman f
(SEE ALSO) 970 1500 w
10 /LucidaSansUnicode22 f
(\031) 720 1656 w
10 /Times-Roman f
(AUTHOR) 970 1656 w
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%%EndPage: 2 2
%%Trailer
done
%%DocumentFonts: Times-Roman LucidaSansUnicode22 Times-Italic Times-Bold S1
%%Pages: 2