encodedv - encode a series of images to a digital video stream
encodedv [ options ] video_pattern [ audio_input ]
encodedv takes a series of images in PPM/PGM/video format and option-
ally an audio stream and compiles them into a DV-encoded video stream.
pattern specifies where the input data is located and may be either -
for stdin, or a printf-style pattern taking one numeric argument that
gets replaced by the current frame number. Like image%03d.ppm, which
gets expanded to image000.ppm, image001.ppm, etc.
show encodedv version number.
start encoding at frame number count (defaults to 0).
end encoding at frame number count (defaults to unlimited).
flip lines to compensate for wrong interlacing in the input
data. Happened with mpeg2dec generated data.
vlc code distribution passes (1-3) greater values = better qual-
ity but not necessarily slower encoding! This defaults for best
quality = 3.
show encoder statistics / status information
Choose input-filter: [>ppm<, pgm, video] The ppm-filter only
supports raw rgb ppm files. The pgm file format is the one gen-
erated by mpeg2dec of the livid project. ( http://linuxvideo.org
) This means: Y-data appended by U and V data which are scaled
down by 2 and placed side by side. This option defaults to PPM.
Some things you want to keep in mind:
1) If you want to stream video frames (using video_pattern =
"-") you have to make sure that there is no trailing garbage at
the end of the pictures. This is ignored by most image manipula-
2) If you are one of the poor persons with a buggy PCI bus-mas-
tering board be sure to have a backup handy if you want to use
video support. Some versions of the VIA board chipsets crash
your machine and even your harddisk. Since encodedv uses full
resolution capturing it is more likely to trigger these bugs
than other programs. If you have a VIA board you definitely want
to upgrade to Linux 2.4.3 or higher.
3) The encoded pictures must have the correct resolution. If
they don’t, you may want to try ppmqscale. The used video format
is chosen by picture resolution. Use 720x576 for PAL and 720x480
4) If you want to speed up things a little bit and you are
generating the input pictures automatically you may want to try
pgm’s instead of ppm’s since they are encoded somewhat faster.
But keep in mind, that this pgm format is only optimal for PAL
since NTSC averages the U and V values somewhat differently.
Choose audio-input-filter: [>none<, wav, dsp]
Choose output-filter: [>raw<]
Static qno tables for quantisation on 2 VLC passes. For turbo
(but somewhat lossy encoding) try -q [1,2] -p [2,3]. There are
only two static qno tables registered right now:
1 : for sharp DV pictures
2 : for somewhat noisy satelite television signal
If you want to add some more, go ahead ;-)
Set frames per second (default: use all frames)
Force dct mode (88 or 248) for whole picture
Show help message.
Display brief usage message.
See http://libdv.sourceforge.net/ for the latest version.
encodedv was written by James Bowman <email@example.com> and Peter
This manual page is based on encodedv’s help message and was written by
Daniel Kobras <firstname.lastname@example.org> for the Debian GNU/Linux system (but
may be used by others). It was updated by Peter Schlaile <email@example.com-
April 2001 ENCODE(1)
Man(1) output converted with