VXTOMPEG

VisionX V4

NAME

vxtompeg − create videos from VisionX files

SYNOPSIS

vxtompeg [if=<infile>] [of=<output-file>] [b=<bitrate>] [d=<delay>] [fps=<frame-rate>] [-v] [-w]

DESCRIPTION

Vxtompeg converts a vx image sequence to a video format file using the ffmpeg converter. The format for the video file is determined by the output file extension name. The most usual and flexible extension is .mp4 The bitrate of the encoded video may be specified using b= parameter. The default bitrate used by the program is 2500 kbps

The d= option permits the delay between frames to be set in units of 1/100 seconds. The default value for d depends upon the number of images n in the image set. If n is greater then 10 then d=10, if n is greater than 3 then d=100 otherwise d=150. d=10 is equivalent to 10 frames per second (fps). The frame rate may be alternatively set be the parameter fps=.

CONSTRAINTS

Only byte images are supported. An external encoder (ffmpeg) is used which is often not part of standard installations. The output file name must have extensions for formats supported by ffmpeg.

OPTIONS

	if=		input file, visionx image sequence
	of=		output video file (the file name must be explicitly set and must have an extension that is understood by the installed ffmpeg. The most usual extension is .mp4 bitrate of the video (kbps), default 2500. This determines the quality (and file size) of the resulting video file. The delay between images (units of 1/100 sec), default depends on number of images Set the frame rate in frames per second. This option overides the d= parameter.

SEE ALSO

vmpegtovxi(1) Set verbose. This option shows the frame rate and the parameters given to ffmpeg Show warnings. This option reports the conversion details from ffmpeg.

AUTHOR

A. P. Reeves