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blind-split.1 - blind - suckless command-line video editing utility
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blind-split.1 (2491B)
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1 .TH BLIND-SPLIT 1 blind
2 .SH NAME
3 blind-split - Split a video, by frame, into multiple videos
4 .SH SYNOPSIS
5 .B blind-split
6 [-L]
7 .RI ( file
8 .RI ( end-point
9 |
10 .RB ' end '))\ ...
11 .SH DESCRIPTION
12 .B blind-split
13 reads a video from stdin and splits into multiple videos.
14 Starting from the first frame in stdin, it writes a video
15 to the first specified
16 .I file
17 until the first specified
18 .I end-point
19 number of frames have been written.
20 .B blind-split
21 then proceeds to write the following frames to the next
22 specified
23 .B file
24 until a total of
25 .I end-point
26 frames has been written (that is, including all previous
27 videos), where
28 .I end-point
29 is the associated
30 .IR end-point .
31 If
32 .RB ' end '
33 is used instead of
34 .IR end-point ,
35 .B blind-split
36 will proceed until the end of the input video. If you
37 want to discard a section of the video, you can specify
38 the
39 .I file
40 /dev/null.
41 .P
42 All specified
43 .IR end-point s,
44 including
45 .RB ' end '
46 must be in strictly ascending order.
47 .P
48 The specified
49 .IR file s
50 may be of any type, except directory, including pipes
51 and FIFO:s. Indeed you probably want all of the to be
52 pipes, as saving a raw video to disc will probably fill
53 your disc almost immediately. If you are levering the
54 power of
55 .BR make (1)
56 to only rerended parts you have changes, you can
57 pipe the videos into
58 .BR blind-to-video (1)
59 to compress them. If you're shall does not support
60 process substitution or creating anonymous pipes, you
61 can uses FIFO:s. If you try to truncate a FIFO, it
62 will be flushed, if this is done after all writes have
63 been done, the process reading from the FIFO will think
64 that there no longer are any processes that have it
65 open for writing, assuming it, like all
66 .B blind
67 tools, have been written to treat the file as any a
68 regular file (which is usually have pipes are also
69 treated).
70 .SH OPTIONS
71 .TP
72 .B -L
73 Ignore the number of frames specified in the videos head
74 and read until the end or the last desired frame is reached.
75 If this option is used in combination with
76 .RB ' end ',
77 the last video will have an incorrect frame count written
78 in its head. Depending on what tools you will being using,
79 you may need to save that video into a regular file and
80 rewrite its head with
81 .BR blind-rewrite-head (1).
82 .SH SEE ALSO
83 .BR blind (7),
84 .BR blind-from-video (1),
85 .BR blind-to-video (1),
86 .BR blind-cut (1),
87 .BR blind-concat (1),
88 .BR blind-disperse (1),
89 .BR blind-split-cols (1),
90 .BR blind-split-rows (1),
91 .BR blind-rewrite-head (1)
92 .SH AUTHORS
93 Mattias Andrée
94 .RI < [email protected] >
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