This is the command playdv that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
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 taking 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 decoding 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.
Use playdv online using onworks.net services
