Annotation of mp3/bin/mixer.pl, Revision 1.1
1.1 ! andrew 1: #!/usr/bin/perl -Tw
! 2: ########################################################################
! 3: # Mixer.pl *** Changes volume on the MP3 player
! 4: #
! 5: # 10/11/2002 4:26PM
! 6: # Written by andrew fresh <andrew@mad-techies.org>
! 7: ########################################################################
! 8: use strict;
! 9: use diagnostics;
! 10:
! 11: my $mixerctl = '/usr/bin/mixerctl';
! 12:
! 13: my $me = MyName();
! 14:
! 15: delete $ENV{PATH} if exists $ENV{PATH};
! 16:
! 17:
! 18: my @Vols = (
! 19: [ 7, 7],
! 20: [ 15, 15],
! 21: [ 23, 23],
! 22: [ 31, 31],
! 23: [ 39, 39],
! 24: [ 47, 47],
! 25: [ 55, 55],
! 26: [ 63, 63],
! 27: [ 71, 71],
! 28: [ 79, 79],
! 29: [ 87, 87],
! 30: [ 95, 95],
! 31: [103, 103],
! 32: [111, 111],
! 33: [119, 119],
! 34: [127, 127],
! 35: [135, 135],
! 36: [143, 143],
! 37: [151, 151],
! 38: [159, 159],
! 39: [167, 167],
! 40: [175, 175],
! 41: [183, 183],
! 42: [191, 191],
! 43: [199, 199],
! 44: [207, 207],
! 45: [215, 215],
! 46: [223, 223],
! 47: [231, 231],
! 48: [239, 239],
! 49: [247, 247],
! 50: [255, 255],
! 51: );
! 52:
! 53:
! 54: my $Cur_Vol = `$mixerctl outputs.master`;
! 55: #»print "Cur_Vol $Cur_Vol<BR>\n";
! 56: $Cur_Vol =~ /outputs.master=(\d+),(\d+)/i;
! 57: my $Cur_Vol_Left = $1;
! 58: my $Cur_Vol_Right = $2;
! 59:
! 60: print "Content-Type: text/html\n\n";
! 61: print "<html>\n<head>\n\t<meta HTTP-EQUIV='Pragma' CONTENT='no-cache'> ";
! 62:
! 63: my $New_Vol = "$Cur_Vol_Left&$Cur_Vol_Right";
! 64: if ($ENV{'QUERY_STRING'}) {
! 65: print "<meta HTTP-EQUIV=Refresh CONTENT=\"1; URL=mixer.pl\">";
! 66: $New_Vol = $ENV{'QUERY_STRING'};
! 67: }
! 68:
! 69: print <<EOL;
! 70:
! 71: <style type="text/css" media="screen">
! 72: <!--
! 73: a.down:link { color: red; text-decoration: none; }
! 74: a.down:visited { color: red; text-decoration: none; }
! 75: a.down:hover { color: red; text-decoration: none; }
! 76: a.down:active { color: red; text-decoration: none; }
! 77: a.up:link { color: blue; text-decoration: none; }
! 78: a.up:visited { color: blue; text-decoration: none; }
! 79: a.up:hover { color: blue; text-decoration: none; }
! 80: a.up:active { color: blue; text-decoration: none; }
! 81: -->
! 82: </style>
! 83:
! 84: EOL
! 85:
! 86: print "<title>Volume Mixer</title></head>\n<body>\n\n";
! 87:
! 88: Print_Nav();
! 89:
! 90: print "Volume - ";
! 91:
! 92:
! 93: #»print "New_Vol $New_Vol<BR>\n";
! 94: $New_Vol =~ /(\d+)&(\d+)/;
! 95: my $New_Vol_Left = $1;
! 96: my $New_Vol_Right = $2;
! 97:
! 98: my @nav;
! 99: foreach my $vol (@Vols) {
! 100: if ($$vol[0] == $New_Vol_Left) {
! 101: push @nav, "<B><A HREF='$me?$$vol[0]&$$vol[1]' class=up>$$vol[0]</A></B>\n";
! 102: } elsif ($$vol[0] < $New_Vol_Left) {
! 103: push @nav, "<A HREF='$me?$$vol[0]&$$vol[1]' class=up>}</A>\n";
! 104: } elsif ($$vol[0] > $New_Vol_Left) {
! 105: push @nav, "<A HREF='$me?$$vol[0]&$$vol[1]' class=down>]</A>\n";
! 106: }
! 107: #print "$vol - $$vol[0] - $$vol[1]<br>\n";
! 108: }
! 109: print join " ", @nav;
! 110: #print "<br>\n";
! 111:
! 112: Set_Vol($Cur_Vol_Left, $Cur_Vol_Right, $New_Vol_Left, $New_Vol_Right);
! 113:
! 114: print "</body>\n</head>\n</html>\n";
! 115:
! 116:
! 117:
! 118: sub Set_Vol
! 119: {
! 120: my $old_vol_right = shift;
! 121: my $old_vol_left = shift;
! 122: my $new_vol_left = shift;
! 123: my $new_vol_right = shift;
! 124:
! 125: my $old_vol;
! 126: my $new_vol;
! 127: if (($old_vol_left + $old_vol_right) > ($new_vol_left + $new_vol_right)) {
! 128: $old_vol = $old_vol_left > $old_vol_right ? $old_vol_left : $old_vol_right;
! 129: $new_vol = $new_vol_left < $new_vol_right ? $new_vol_left : $new_vol_right;
! 130: } else {
! 131: $old_vol = $old_vol_left < $old_vol_right ? $old_vol_left : $old_vol_right;
! 132: $new_vol = $new_vol_left > $new_vol_right ? $new_vol_left : $new_vol_right;
! 133: }
! 134:
! 135: #»print "Old: $old_vol - New: $new_vol<br>\n";
! 136:
! 137: my $Set_Vol;
! 138:
! 139: foreach my $vol ($old_vol < $new_vol ? $old_vol..$new_vol : reverse $new_vol..$old_vol) {
! 140: #»print "$vol<br>\n";
! 141: $Set_Vol = `$mixerctl -w outputs.master=$vol,$vol`;
! 142: #»print $Set_Vol . "<br>\n";
! 143: }
! 144: return $Set_Vol;
! 145: }
! 146:
! 147:
! 148:
! 149: ########################################################################
! 150: # *** EncodeURL: %encodes the parameters of the URL
! 151: sub EncodeURL {
! 152: my $strURL = shift;
! 153: $strURL =~ s/(\W)/sprintf("%%%x", ord($1))/eg;
! 154: return $strURL;
! 155: }
! 156:
! 157: #########################################################################
! 158: # My name
! 159: sub MyName {
! 160: my @filename = (split /\//, $0);
! 161: pop @filename;
! 162: }
! 163:
! 164:
! 165: #######################################################################
! 166: # Bail: this subrouting dies and displays the error to the browser.
! 167: # gotten from the example in the O'Reilly
! 168: # _Learning_Perl_on_Win32_Systems_
! 169: sub bail {
! 170: my $error = shift;
! 171: print "\n\nUnexpected Error: <b>$error</b><br>\n";
! 172: print "In " . __FILE__ . "\n";
! 173: die;
! 174: exit;
! 175: }
! 176: sub Print_Nav
! 177: {
! 178: open FILE, 'nav.inc' or die "\n\ncouldn't open FILE nav.inc: $!";
! 179: while (<FILE>) {
! 180: print;
! 181: }
! 182: close FILE;
! 183: }
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