playdv



PLAYDV(1)                                                            PLAYDV(1)




NAME

       playdv - display digital video streams on screen


SYNOPSIS

       playdv [ options ] file


DESCRIPTION

       playdv  reads  in  DV-encoded  video  data from file and displays it on
       screen.

       -v, --version
              show playdv version number.

       --disable-audio
              skip audio decoding.

       --disable-video
              skip video decoding.

       -n, --num-frames=count
              stop playing after count frames.

       --dump-frames=pattern
              save a PPM image of each frame to an  individual  file.  pattern
              determines  the file names and may be given in printf-style tak-
              ing one numeric argument that gets  replaced  with  the  current
              frame  number.  Like capture%05d.ppm for files capture00001.ppm,
              capture00002.ppm, etc.  Use - to stream the frames to stdout.

       --no-mmap
              don’t use mmap for reading (useful for pipes).

       -l, --loop-count=count
              loop playback count= times, 0 for infinite.

       Audio Output Options

       --audio-device=devicename
              target audio device; e.g. /dev/dsp, which is also the default.

       --audio-file=file
              send raw decoded audio stream to file, skipping audio ioctls.

       --audio-mix=(-16 .. 16)
              mixing level of 4 channel audio for 32KHz  12bit.  0  [default].
              -16 selects second channel, 16 selects first channel.

       Video Output Options

       -d, --display=(0|1|2|3)
              method  used  to  display  video  data  on  screen: 0=autoselect
              [default], 1=gtk, 2=Xv, 3=SDL. Xv is  usually  the  fastest  but
              requires XFree86 version 4.0 or higher with XVideo extensions.

       --aspect=(n|w|normal|wide)
              video  display  aspect ratio (for Xv only): n=normal 4:3, w=wide
              16:9 .  Not all window manager support resizing at fixed  aspect
              ratio. If they do, resizing is done at fixed aspect ratio.

       --size=(10 .. 100)
              initial scaleing percentage (for Xv only): 10 <= n <= 100.

       Decoder Options

       -V, --video-system=(0|1|2|3)
              sets  the  video  standard of the incoming DV data: 0=autoselect
              [default], 1=525/60 4:1:1 (NTSC), 2=625/50 4:2:0 (PAL,IEC  61834
              DV),  3=625/50  4:1:1  (PAL,SMPTE  314M  DV). Autoselect usually
              works fine. Only use this option if you know what you are doing.

       Video Decode Options

       -q, --quality=(1|2|3)
              quality  level of desired video decoding.  The process of decod-
              ing DV data is split into several steps.  Each  additional  step
              enhances output quality, but of course also slows down decoding.
              If your machine is too slow to  keep  up  an  interactive  frame
              rate,  you  might want to decrease this number: 1=DC and no ACs,
              2=DC and single-pass  for  ACs,  3=DC  and  multi-pass  for  ACs
              [default].

       -m, --monochrome
              skip  decoding  of  color  blocks.  Another  way to speed up the
              decoding process.

       Audio Decode Options

       -f, --frequency=(0|1|2|3)
              frequency of  audio  data  in  the  input  stream:  0=autodetect
              [default], 1=32 kHz, 2=44.1 kHz, 3=48 kHz.

       -Q, --quantization=(0|1|2)
              dynamic  range  of  audio data in the input stream: 0=autodetect
              [default], 1=12 bit, 2=16bit.

       -e, --emphasis=(0|1|2)
              first-order preemphasis of  50/15  us:  0=autodetect  [default],
              1=on, 2=off.

       Help Options

       -?, --help
              Show  help  message. Use this command to get a brief description
              of available options.

       --usage
              Display brief usage message.


SEE ALSO

       dvconnect(1),dubdv(1),encodedv(1).


AVAILABILITY

       See http://libdv.sourceforge.net/ for the latest version.


AUTHORS

       playdv was written by Charles ’Buck’ Krasic <krasic@acm.org>  and  Erik
       Walthinsen <omega@cse.ogi.edu>.

       This  manual  page is based on playdv’s help message and was written by
       Daniel Kobras <kobras@debian.org> for the Debian GNU/Linux system  (but
       may be used by others).



                                 January 2003                        PLAYDV(1)

Man(1) output converted with man2html