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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] >
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