blind-to-video.1 - blind - suckless command-line video editing utility | |
git clone git://git.suckless.org/blind | |
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blind-to-video.1 (1791B) | |
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1 .TH BLIND-TO-VIDEO 1 blind | |
2 .SH NAME | |
3 blind-to-video - Converts blind video to a regular video | |
4 .SH SYNOPSIS | |
5 .B blind-to-video | |
6 [-d] | |
7 .I frame-rate | |
8 .IR ffmpeg-arguments " ..." | |
9 .SH DESCRIPTION | |
10 .B blind-to-video | |
11 reads a | |
12 .B blind | |
13 video from stdin and uses | |
14 .BR ffmpeg (1) | |
15 to convert it to a normal video format. | |
16 .I frame-rate | |
17 must be set to the frame-rate of the input video, | |
18 lest the tempo in the output video be modified. You | |
19 can use | |
20 .BR ffprobe (1) | |
21 (an | |
22 .B ffmpeg | |
23 utility) on your original video to find out the frame rate: | |
24 | |
25 .nf | |
26 ffprobe -v quiet -show_streams -select_streams v -- your-video.m… | |
27 grep '^r_frame_rate=' | cut -d = -f 2- | |
28 .fi | |
29 | |
30 This value will be a rational value, which is supported. | |
31 All argumnets after | |
32 .I frame-rate | |
33 (that is | |
34 .IR ffmpeg-arguments " ...)" | |
35 are arguments that will be passed to | |
36 .BR ffmpeg (1) | |
37 after the arguments that | |
38 .B blind-to-video | |
39 will create that specifies the input file and necessary metadata | |
40 such as frame rate, geometry, and format, of the input video. | |
41 Beginners are recommended to use | |
42 .B -c:v libx264 -preset veryslow -crf 0 -pix_fmt yuv444p -- | |
43 .IR output-file . | |
44 .P | |
45 If your output video need include an alpha channel, the codec | |
46 .BR ffvhuff . | |
47 Not all video players support videos with transparency. | |
48 .BR mpv (1) | |
49 is a good media player for previewing videos with transparency, | |
50 however it distorts colour somewhat. | |
51 .SH OPTIONS | |
52 .TP | |
53 .B -d | |
54 Perform coarse colour-model conversion. This will increase the | |
55 performance of the conversion, however, it the colours will | |
56 not look correct, unless the -d flag was also with | |
57 .BR blind-from-video (1) | |
58 and not colours have been modified between to the processes. | |
59 .SH SEE ALSO | |
60 .BR blind (7), | |
61 .BR blind-from-video (1), | |
62 .BR blind-compress (1), | |
63 .BR ffmpeg (1), | |
64 .BR ffprobe (1) | |
65 .SH AUTHORS | |
66 Mattias Andrée | |
67 .RI < [email protected] > |