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	blind-from-video.1 - blind - suckless command-line video editing utility
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	blind-from-video.1 (2352B)
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	1 .TH BLIND-FROM-VIDEO 1 blind
	2 .SH NAME
	3 blind-from-video - Converts a regular, cooked video to a blind video
	4 .SH SYNOPSIS
	5 .B blind-from-video
	6 [-F
	7 .IR pixel-format ]
	8 [-r
	9 .IR frame-rate ]
	10 [-w
	11 .I width
	12 -h
	13 .IR height ]
	14 [-dL]
	15 .I input-file
	16 .RI [ output-file ]
	17 .SH DESCRIPTION
	18 .B blind-from-video
	19 converts the video, in the file
	20 .IR input-file ,
	21 to a format usable by the
	22 .B blind
	23 tools, and prints the new video to the file
	24 .IR output-file .
	25 .I input-file
	26 and, unless -L is used,
	27 .I output-file
	28 must be regular files.
	29 .I input-file
	30 must be a normal video file with a container (i.e. not raw video)
	31 that is supported by
	32 .BR ffmpeg (1).
	33 It is unspecified what happens if
	34 .I input-file
	35 does not have exactly one video stream. All non-video streams,
	36 such as audio and subtitles are discarded.
	37 .P
	38 If
	39 .B output-file
	40 is omitted,
	41 .RB ' - '
	42 (stdout) is used.
	43 .SH OPTIONS
	44 .TP
	45 .B -d
	46 Perform coarse colour-model conversion. This will increase the
	47 performance of the conversion, but modifications to the colours
	48 will not produce the expected colours. This is useful for
	49 drafting or if you will not modify the colours. If you use this
	50 flag, you should also use it in
	51 .BR blind-to-video (1),
	52 otherwise the colours will be modified.
	53 .TP
	54 .BR -F " "\fIpixel-format\fP
	55 Select pixel format, see
	56 .BR blind-convert (1)
	57 for more information. Pixel formats starting with
	58 .BR raw ,
	59 other than
	60 .BR raw0 ,
	61 are not supported.
	62 .TP
	63 .BR -h " "\fIheight\fP
	64 Change the height of the video to
	65 .IR height .
	66 .TP
	67 .B -L
	68 Write to stdout that the number of frames in the video is 0.
	69 This allows you to use a non-regular file, including a pipe, as
	70 .IR output-file .
	71 If you specify
	72 .RB ' - '
	73 as the
	74 .IR output-file ,
	75 the video is printed to stdout.
	76
	77 This option is useful if you want to split a video, into
	78 multiple videos, as it allows to to split the video without
	79 having to store the entire raw video to disc.
	80
	81 If you use this option, you can use
	82 .BR blind-split (1)
	83 to write the actual number of frames to the head, if this
	84 is needed.
	85 .TP
	86 .BR -r " "\fIframe-rate\fP
	87 Change the frame rate of the video to
	88 .IR frame-rate .
	89 This value can be a rational.
	90 .TP
	91 .BR -w " "\fIwidth\fP
	92 Change the width of the video to
	93 .IR width .
	94 .SH SEE ALSO
	95 .BR blind (7),
	96 .BR blind-to-video (1),
	97 .BR blind-convert (1),
	98 .BR blind-split (1),
	99 .BR blind-rewrite-head (1)
	100 .SH AUTHORS
	101 Mattias Andrée
	102 .RI < [email protected] >