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y4mcolorbars (1)
>> y4mcolorbars (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
NAME
y4mcolorbars - Create a YUV4MPEG2 stream containing a colorbar test pattern
SYNOPSIS
y4mcolorbars
[options]
DESCRIPTION
y4mcolorbars creates a YUV4MPEG2 stream consisting entirely of frames
containing a colorbar test pattern. This stream is
ready for further processing by the mpeg2enc(1)
MPEG encoder and image processing filters like
yuvscaler(1).
Output is to stdout to facilitate piping to other MJPEG tools.
OPTIONS
y4mcolorbars accepts the following options:
-n num
Output a total of 'num' output frames.
(default: 1)
-F n:d
Set framerate encoded in output stream, as an exact integer ratio.
(default: 30000:1001) Common rates are:
24000:1001 - NTSC 3:2 pulldown converted film
24:1 - native film
25:1 - PAL/SECAM
30000:1001 - NTSC video
50:1 - PAL field rate
60000:1001 - NTSC field rate
-W w
Set frame width. (default: 720)
-H h
Set frame height. (default: 480)
-A n:d
Set pixel aspect ratio encoded in output stream, as an exact integer ratio.
(default: 10:11) Common ratios are:
1:1 - square pixels (computer graphics)
10:11 - CCIR-601 NTSC
59:54 - CCIR-601 PAL
-I x
Set interlacing mode, used to interpret the PPM image(s), and also encoded
in output stream. (default: 'p')
p - progressive, non-interlaced
t - top/upper-field-first interlaced
b - bottom/lower-field-first interlaced
This man page was written by Matt Marjanovic.
If you have questions, remarks, problems or you just want to contact
the developers, the main mailing list for the MJPEG-tools is:
[email protected]
