1PLAYDV(1)                   General Commands Manual                  PLAYDV(1)
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NAME

6       playdv - display digital video streams on screen
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SYNOPSIS

9       playdv [ options ] file
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DESCRIPTION

12       playdv  reads  in  DV-encoded  video  data from file and displays it on
13       screen.
14
15       -v, --version
16              show playdv version number.
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18       --disable-audio
19              skip audio decoding.
20
21       --disable-video
22              skip video decoding.
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24       -n, --num-frames=count
25              stop playing after count frames.
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27       --dump-frames=pattern
28              save a PPM image of each frame to an  individual  file.  pattern
29              determines  the file names and may be given in printf-style tak‐
30              ing one numeric argument that gets  replaced  with  the  current
31              frame  number.  Like capture%05d.ppm for files capture00001.ppm,
32              capture00002.ppm, etc.  Use - to stream the frames to stdout.
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34       --no-mmap
35              don't use mmap for reading (useful for pipes).
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37       -l, --loop-count=count
38              loop playback count= times, 0 for infinite.
39
40       Audio Output Options
41
42       --audio-device=devicename
43              target audio device; e.g. /dev/dsp, which is also the default.
44
45       --audio-file=file
46              send raw decoded audio stream to file, skipping audio ioctls.
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48       --audio-mix=(-16 .. 16)
49              mixing level of 4 channel audio for 32KHz  12bit.  0  [default].
50              -16 selects second channel, 16 selects first channel.
51
52       Video Output Options
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54       -d, --display=(0|1|2|3)
55              method  used  to  display  video  data  on  screen: 0=autoselect
56              [default], 1=gtk, 2=Xv, 3=SDL. Xv is  usually  the  fastest  but
57              requires XFree86 version 4.0 or higher with XVideo extensions.
58
59       --aspect=(n|w|normal|wide)
60              video  display  aspect ratio (for Xv only): n=normal 4:3, w=wide
61              16:9 .  Not all window manager support resizing at fixed  aspect
62              ratio. If they do, resizing is done at fixed aspect ratio.
63
64       --size=(10 .. 100)
65              initial scaleing percentage (for Xv only): 10 <= n <= 100.
66
67       Decoder Options
68
69       -V, --video-system=(0|1|2|3)
70              sets  the  video  standard of the incoming DV data: 0=autoselect
71              [default], 1=525/60 4:1:1 (NTSC), 2=625/50 4:2:0 (PAL,IEC  61834
72              DV),  3=625/50  4:1:1  (PAL,SMPTE  314M  DV). Autoselect usually
73              works fine. Only use this option if you know what you are doing.
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75       Video Decode Options
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77       -q, --quality=(1|2|3)
78              quality level of desired video decoding.  The process of  decod‐
79              ing  DV  data is split into several steps.  Each additional step
80              enhances output quality, but of course also slows down decoding.
81              If  your  machine  is  too  slow to keep up an interactive frame
82              rate, you might want to decrease this number: 1=DC and  no  ACs,
83              2=DC  and  single-pass  for  ACs,  3=DC  and  multi-pass for ACs
84              [default].
85
86       -m, --monochrome
87              skip decoding of color blocks.  Another  way  to  speed  up  the
88              decoding process.
89
90       Audio Decode Options
91
92       -f, --frequency=(0|1|2|3)
93              frequency  of  audio  data  in  the  input  stream: 0=autodetect
94              [default], 1=32 kHz, 2=44.1 kHz, 3=48 kHz.
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96       -Q, --quantization=(0|1|2)
97              dynamic range of audio data in the  input  stream:  0=autodetect
98              [default], 1=12 bit, 2=16bit.
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100       -e, --emphasis=(0|1|2)
101              first-order  preemphasis  of  50/15  us: 0=autodetect [default],
102              1=on, 2=off.
103
104       Help Options
105
106       -?, --help
107              Show help message. Use this command to get a  brief  description
108              of available options.
109
110       --usage
111              Display brief usage message.
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SEE ALSO

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

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

120       playdv  was  written by Charles 'Buck' Krasic <krasic@acm.org> and Erik
121       Walthinsen <omega@cse.ogi.edu>.
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123       This manual page is based on playdv's help message and was  written  by
124       Daniel  Kobras <kobras@debian.org> for the Debian GNU/Linux system (but
125       may be used by others).
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129                                 January 2003                        PLAYDV(1)
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