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Full Discussion: Looking for help with a script to automate VLC
Top Forums Shell Programming and Scripting Looking for help with a script to automate VLC Post 302321119 by uncertain on Saturday 30th of May 2009 08:22:35 AM
Old 05-30-2009
Looking for help with a script to automate VLC
Hi,
New member here looking for help. This might not be a post for the 'VERY basics' section, so feel free to move it to somewhere more appropriate.

I've created a script that searches my computer for video files, creates a list of these files, and selects a number of random entries to play in VLC. After a recent catastrophic external HDD failure, everything I could recover has been moved to two computers on a LAN. Now, instead of just searching my ~/Videos folder for the files to index and play, I have to search the ~/Videos folder of a second computer as well, index those (appended to the same list, preferably), and include them in the random shuffle I've created.

I have SSH & SCP access on both machines (I recently learned how to implement passwordless-ssh using rsa & dsa keyfiles, specifically so these processes could be automated). I don't have Samba or NFS installed or working on either computer, but I'll install and configure them if need be. (Though I'd rather not install, configure, and enable NFS or Samba, edit fstab, and then auto-mount a remote folder at boot just to do this.) Just today, I've learned how to start VLC on the remote computer in network-streaming mode, and then start VLC on the local host in network-capture mode. All I'm having a hard time conceptualizing is how to implement the indexing process from a script on the local machine to list files on a remote machine.

Here's a copy of my script in its' current state. It's the first BASH scripting project I ever tackled, and 'borrowed' bits & pieces of it from various things I found via Google. I'm sure there's a better/smoother/cleaner way to do some of the things I did, but it works, and I'm happy with it. Right now, it's set to index all the episodes of The Simpsons that are in my hard drive, and then play several random episodes.

If anyone could point me in a direction or give me some pointers, I'd greatly appreciate it.
Code:
#!/bin/bash
#
# Creates a list of all files in all Simpsons folders and then
# plays so many random episodes with VLC Media Player.
# Created by Uncertain

# Filenames and paths.
path1=/home/zero/Videos/
path2=/home/zero/Videos/Simpsons
list=/home/zero/Videos/Simpsons/episodes.txt
# Check for the list. If it's in ~/Videos, fine.
# If it doesn't exist, create it in ~/Videos.
if [ -f $list ]
 then
  echo "List found at $list"
   else
    echo "Episodes list not found. Creating list arranged by season & episode..." && cd $path1 && find ~/Videos/Simpsons -name '*.avi' -o -name '*.mpg' -o -name '*.mp4' -o -type f -size +20M | sort > $list && echo "Done. List created at: $list" 
fi
# Set the number of episodes to play. Episodes are 
# roughly 20 mins, so three episodes to every hour.
repeat=3
cycles=0
while  [ $cycles -ne $repeat ]
 do
  echo $cycles
  cycles=$(( $cycles + 1 ))
# Read the list, select one random line.
LowerBound=1
RandomMax=32767
UpperBound=$(cat $list | wc -l)
RandomLine=$(( $LowerBound + ($UpperBound * $RANDOM) / ($RandomMax + 1) ))
# Use sed to grab the random line.
episode=$(sed -n "$RandomLine{p;q;}" "$list")
# open the random line in VLC
vlc -vvv --fullscreen "$episode" vlc:quit
# Close the episode count loop...
  done
# ...and then...
exit

Last edited by uncertain; 05-30-2009 at 10:43 AM..
 

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LEARN ABOUT DEBIAN

webservice::youtube::videos

WebService::YouTube::Videos(3pm)			User Contributed Perl Documentation			  WebService::YouTube::Videos(3pm)

NAME

       WebService::YouTube::Videos - Perl interface to youtube.videos.*

VERSION

       This document describes WebService::YouTube::Videos version 1.0.3

SYNOPSIS

	   use WebService::YouTube::Videos;

	   my $api = WebService::YouTube::Videos->new( { dev_id => YOUR_DEV_ID } );

	   # Call API youtube.videos.list_featured
	   my @videos = $api->list_featured;
	   foreach my $video (@videos) {
	       # $video->isa('WebService::YouTube::Video');
	   }

	   # Call other APIs
	   my @videos = $api->list_by_user($user);
	   my @videos = $api->list_by_tag($tag);

	   my $video = $api->get_details($video_id);

	   # Parse XML
	   my @video = $api->parse_xml($xml);	 # when $xml contains <video_list>
	   my $video = $api->parse_xml($xml);	 # when $xml contains <video_details>

DESCRIPTION

       This is a Perl interface to YouTube REST API.

       See Developer APIs <http://youtube.com/dev> and Developer API -- REST Interface <http://youtube.com/dev_rest> for details.

SUBROUTINES
/METHODS
   new(\%fields)
       Creates and returns a new WebService::YouTube::Videos object.  %fields can contain parameters enumerated in "ACCESSORS" section.

   parse_xml($xml)
       Parses XML and returns the result.  $xml should be an object that XML::Simple can understand.

   get_details( $video_id )
       Returns a WebService::YouTube::Video object.  $video_id is an ID of the video which you want to get details.

       See <http://youtube.com/dev_api_ref?m=youtube.videos.get_details> for details.

   list_by_tag( $tag, \%fields )
       Returns an array of WebService::YouTube::Video object.  $tag is a keyword string separated by a space.  %fields can contain the optional
       parameters.

       page
	   1 <= page

       per_page
	   per_page <= 100 (default 20)

       See <http://youtube.com/dev_api_ref?m=youtube.videos.list_by_tag> for details.

   list_by_user( $user )
       Returns an array of WebService::YouTube::Video object.  $tag is a keyword string separated by a space.  %fields can contain optional
       parameters.

       See <http://youtube.com/dev_api_ref?m=youtube.videos.list_by_user> for details.

   list_featured( )
       Returns an array of WebService::YouTube::Video object.

       See <http://youtube.com/dev_api_ref?m=youtube.videos.list_featured> for details.

   ACCESSORS
       dev_id

       Developer ID

       ua

       LWP::UserAgent object

DIAGNOSTICS

       dev_id is required
	   Developer ID is required when you call API of YouTube.

       invalid XML
	   The XML is not a YouTube's XML.

       unknown response
	   The ut_response is neither <video_list> nor <video_details>.

CONFIGURATION AND ENVIRONMENT

       WebService::YouTube::Videos requires no configuration files or environment variables.

DEPENDENCIES

       Class::Accessor::Fast, LWP::UserAgent, XML::Simple, WebService::YouTube::Util, WebService::YouTube::Video

INCOMPATIBILITIES

       None reported.

BUGS AND LIMITATIONS

       No bugs have been reported.

       Please report any bugs or feature requests to "bug-webservice-youtube@rt.cpan.org", or through the web interface at
       <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=WebService-YouTube>.  I will be notified, and then you'll automatically be notified of
       progress on your bug as I make changes.

AUTHOR

       Hironori Yoshida <yoshida@cpan.org>

LICENSE AND COPYRIGHT

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

perl v5.10.1							    2010-08-01					  WebService::YouTube::Videos(3pm)
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