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代码： 全选

#!/bin/bash 

if [ ! -x "/usr/bin/mplayer" ] ; then
	exit 1
fi

PREFIX=mvideothumb
TMP=$(mktemp -d /tmp/$PREFIX.XXXXXX)
SIZE=128
FILE="$1"
OFILE="$2"

if (($# != 2)); then
	echo "$0 <in-file> <out-file>"
	exit
fi

FILE=$(echo -e "${FILE//\%/\\x}")

eval $(/usr/bin/mplayer \
	-really-quiet \
	-nojoystick \
	-nolirc \
	-nocache \
	-nortc \
	-noautosub \
	-vo null \
	-nosound \
	-frames 1 \
	-identify "$FILE" \
	| grep "^ID_LENGTH")

ID_LENGTH=${ID_LENGTH%%.*}

# 有的时候mplayer并不能返回正确的时间长度，故每次生成缩略图失败就将时间减半，最多进行3次尝试。

thumb_done=0
cnt=0

while ((!thumb_done)); do
	ID_LENGTH=$((ID_LENGTH/2))
	/usr/bin/mplayer \
		-ss "$ID_LENGTH" \
		-really-quiet \
		-nojoystick \
		-nolirc \
		-nocache \
		-nortc \
		-noautosub \
		-vf scale \
		-vo png:outdir=$TMP:z=3 \
		-nosound \
		-frames 1 \
		-zoom \
		-xy "$SIZE" \
		-slave "$FILE"
	if mv $TMP/00000001.png "$OFILE" || ((cnt > 2)); then
		thumb_done=1
	fi
	((cnt++))
done
rm -rf $TMP

代码： 全选

#!/bin/bash
#这里指定mplayer-video-thumb.sh的位置
script_location=/usr/bin/mplayer-video-thumb.sh

if [ -e "$script_location" ]; then
    for i in $(gconftool-2 --all-dirs "/desktop/gnome/thumbnailers" \
            | grep "/video") \
            /desktop/gnome/thumbnailers/application@ogg \
            /desktop/gnome/thumbnailers/application@smil \
            /desktop/gnome/thumbnailers/[email protected] \
            /desktop/gnome/thumbnailers/[email protected] \
            /desktop/gnome/thumbnailers/application@x-extension-m4a \
            /desktop/gnome/thumbnailers/application@x-extension-mp4 \
            /desktop/gnome/thumbnailers/application@x-flash-video \
            /desktop/gnome/thumbnailers/application@x-matroska \
            /desktop/gnome/thumbnailers/application@x-ms-asf \
            /desktop/gnome/thumbnailers/application@x-ogg \
            /desktop/gnome/thumbnailers/application@x-quicktime-media-link \
            /desktop/gnome/thumbnailers/application@x-shockwave-flash \
            /desktop/gnome/thumbnailers/application@x-shorten \
            /desktop/gnome/thumbnailers/application@x-smil \
            /desktop/gnome/thumbnailers/application@xspf@xml \
            /desktop/gnome/thumbnailers/audio@x-pn-realaudio \
            /desktop/gnome/thumbnailers/[email protected] \
            /desktop/gnome/thumbnailers/[email protected] \
            /desktop/gnome/thumbnailers/misc@ultravox; do

        echo "Seting Key for ${i##*/}"
        /usr/bin/gconftool-2 -s "$i"/command -t string "$script_location %u %o"
        /usr/bin/gconftool-2 -s "$i"/enable -t boolean 'true'
    done
else
    echo "Unable to find: $script_location"
    echo "setup not complete"
    exit 1
fi
echo "SUCCESS!"

代码： 全选

chmod +x mplayer-video-thumb.sh gconf.sh
sudo cp mplayer-video-thumb.sh /usr/bin/
./gconf.sh
rm -r ~/.thumbnails/fail

代码： 全选

[Thumbnailer Entry]
TryExec=/home/allfox/programs/gnome_thumbnailer_with_mplayer
Exec=/home/allfox/programs/gnome_thumbnailer_with_mplayer %u %o %s
MimeType=application/vnd.rn-realmedia;application/mxf;application/ogg;application/ram;application/sdp;application/vnd.ms-wpl;application/x-extension-m4a;application/x-extension-mp4;application/x-flash-video;application/x-matroska;application/x-netshow-channel;application/x-ogg;application/x-quicktimeplayer;application/x-shorten;image/vnd.rn-realpix;image/x-pict;misc/ultravox;text/x-google-video-pointer;video/3gpp;video/dv;video/fli;video/flv;video/mp2t;video/mp4;video/mp4v-es;video/mpeg;video/msvideo;video/ogg;video/quicktime;video/vivo;video/vnd.divx;video/vnd.rn-realvideo;video/vnd.vivo;video/webm;video/x-anim;video/x-avi;video/x-flc;video/x-fli;video/x-flic;video/x-flv;video/x-m4v;video/x-matroska;video/x-mpeg;video/x-ms-asf;video/x-ms-asx;video/x-msvideo;video/x-ms-wm;video/x-ms-wmv;video/x-ms-wmx;video/x-ms-wvx;video/x-nsv;video/x-ogm+ogg;video/x-theora+ogg;video/x-totem-stream;audio/x-pn-realaudio;audio/3gpp;audio/ac3;audio/AMR;audio/AMR-WB;audio/basic;audio/midi;audio/mp2;audio/mp4;audio/mpeg;audio/ogg;audio/prs.sid;audio/vnd.rn-realaudio;audio/x-aiff;audio/x-ape;audio/x-flac;audio/x-gsm;audio/x-it;audio/x-m4a;audio/x-matroska;audio/x-mod;audio/x-mp3;audio/x-mpeg;audio/x-ms-asf;audio/x-ms-asx;audio/x-ms-wax;audio/x-ms-wma;audio/x-musepack;audio/x-pn-aiff;audio/x-pn-au;audio/x-pn-wav;audio/x-pn-windows-acm;audio/x-realaudio;audio/x-real-audio;audio/x-sbc;audio/x-speex;audio/x-tta;audio/x-wav;audio/x-wavpack;audio/x-vorbis;audio/x-vorbis+ogg;audio/x-xm;application/x-flac;

代码： 全选

#!/usr/bin/env perl
use strict;
use 5.010;

# allfox's GNOME thumbnailer with MPlayer

use File::Temp qw(tempdir);
use List::Util qw(min);
use File::Spec qw();
use URI::Escape qw(uri_unescape);

sub thumbnailer
{
	my($mplayer) = `which mplayer`;
	chomp $mplayer;
	my($input, $output, $size) = @_;
	$input = uri_unescape($input);
	$output = uri_unescape($output);
	if($input =~ /\.part/i)
	{
		return;
	}
	my $common_arguments = '-nosound -noautosub -really-quiet';
	my $video_information = `$mplayer -identify -frames 0 $common_arguments '$input'`;
	$video_information =~ /^ID_VIDEO_WIDTH=(?<width>[0-9.]+)
				.*
				^ID_VIDEO_HEIGHT=(?<height>[0-9.]+)
				.*
				^ID_LENGTH=(?<length>[0-9.]+)
				/msix;
	my $width = $+{'width'} / 1;
	my $height = $+{'height'} / 1;
	my $length = $+{'length'} / 1;
	if(defined $size)
	{
		if($width > $height)
		{
			my $scale_to = min $width, $size;
			$width = $scale_to;
			$height = $height * ($scale_to / $width);
		}
		else
		{
			my $scale_to = min $height, $size;
			$width = $width * ($scale_to / $height);
			$height = $scale_to;
		}
	}
	my($temp_frames) = tempdir('gnome_thumbnailer_with_mplayer-XXXXXXXXXXXX', TMPDIR => 1, CLEANUP => 1);
	for(1..3)
	{
		$length /= 2;
		if(0 == system "$mplayer -vo jpeg:outdir='$temp_frames' -ss $length -frames 1 $common_arguments '$input'")
		{
			last;
		}
	}
	my $convert = `which convert`;
	chomp $convert;
	opendir TEMP_FRAMES, $temp_frames;
	for(readdir TEMP_FRAMES)
	{
		if(/^\d+/)
		{
			my $jpeg_result = File::Spec->catfile($temp_frames, $_);
			system "$convert $jpeg_result -thumbnail ${width}x$height png:'$output'";
			last;
		}
	}
	closedir TEMP_FRAMES;
}

&thumbnailer(@ARGV);