Dear PerlMonks,
I am in need of capturing/grabbing frames via the aforementioned module. Unfortunately by running the following code:
#!/usr/bin/perl
use strict;
use Video::Capture::V4l;
my $grab = new Video::Capture::V4l("/dev/video0") or die "Unable to op
+en Video device: $!"; print "silent error:$!\n";
$grab->sync(0) or die "unable to sync: $!\n"; #
I obtain:
silent error: Illegal seek
unable to sync: Invalid argument
That suggests v4l cannot lock and sync the frame 0.
I have tested, successfully, my video input via mplayer through the following command:
mplayer -tv device=/dev/video0:input=2:driver=v4l2:width=320:height=24
+0:norm=ntsc:adevice=/dev/dsp tv://1 -zoom -aspect 4:3
This suggests I have to find a way to pass the -tv and the tv://1 options through Video::Capture::V4l.
Do you happen to know how to do this?
Thank you again in advance,
CptSkripto
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.