blind-to-video.1 - blind - suckless command-line video editing utility
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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.mkv |
           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 < maandree@kth.se >