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39 lines
896 B
39 lines
896 B
15 years ago
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#!/usr/bin/env ruby
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# Required modules
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require 'mltpp'
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# Create the mlt system
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Mltpp::Factory::init
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# Get and check the argument
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file = ARGV.shift
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name = ARGV.shift
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size = ARGV.shift
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size = "192x144" if size.nil?
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raise "Usage: thumbs.rb file name [ size ]" if file.nil? || name.nil?
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# Create the producer
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producer = Mltpp::Producer.new( file )
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raise "Unable to load #{file}" if !producer.is_valid
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# Construct the playlist
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playlist = Mltpp::Playlist.new( )
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# Get the out point
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out = producer.get_int( "out" );
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# Calculate position of frames
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[ 0, 0.25, 0.5, 0.75, 1 ].each { |x| playlist.append( producer, x*out, x*out ) }
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# Create the thumb nail generator
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generator = Mltpp::Consumer.new( "avformat", "#{name}%d.jpg" )
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generator.set( "real_time", "0" )
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generator.set( "progressive", "1" )
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generator.set( "size", size )
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# Connect the consumer
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generator.connect( playlist );
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generator.run
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