[b0d9dda] | 1 | #!/usr/athena/bin/perl |
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| 2 | # Play the data on STDIN as an audio file |
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| 3 | # |
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[c711ed9] | 4 | # $Id: sipbmp3-filter,v 1.18 2008-09-28 23:36:26 geofft Exp $ |
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[82d34e6] | 5 | # $Source: /tmp/tmp.UFBNno9997/RCS/sipbmp3-filter,v $ |
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[b0d9dda] | 6 | # |
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| 7 | # TODO |
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| 8 | # ---- |
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| 9 | # Make this structured code. It's a mess. |
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| 10 | # Repeat what we just played for EXT files too |
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| 11 | # Support HTTP Auth on ogg streams |
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| 12 | # License, cleanup and package |
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| 13 | # |
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| 14 | # Jered Floyd <jered@mit.edu> takes very little credit for this code |
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[c711ed9] | 15 | # apparently neither does Quentin Smith <quentin@mit.edu> |
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[b0d9dda] | 16 | |
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| 17 | use Getopt::Std; |
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| 18 | |
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[ba06c7f] | 19 | use Image::ExifTool qw(ImageInfo); |
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| 20 | use File::Spec::Functions; |
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| 21 | use LWP::UserAgent; |
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| 22 | use Data::Dumper; |
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| 23 | |
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| 24 | my $ua = new LWP::UserAgent; |
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| 25 | |
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| 26 | close(STDERR); |
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| 27 | open(STDERR, ">>", "/tmp/sipbmp3.log") or warn "Couldn't open log: $!"; |
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| 28 | |
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| 29 | $ENV{"TERM"}="vt100"; |
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[b0d9dda] | 30 | |
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[148111e] | 31 | print STDERR "STDERR FROM SPOOL FILTER\n"; |
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| 32 | |
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[b0d9dda] | 33 | # set real uid to be effective uid |
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| 34 | $< = $>; |
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| 35 | |
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| 36 | # Select the correct output device and set the volume |
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[ba06c7f] | 37 | #system("amixer -q set Headphone 100\% unmute"); |
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[b0d9dda] | 38 | |
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| 39 | # The command line we get from lpd is (no spaces between options and args): |
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| 40 | # -C lpr -C class |
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| 41 | # -A LPRng internal identifier |
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| 42 | # -H originating host |
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| 43 | # -J lpr -J jobname (default: list of files) |
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| 44 | # -L lpr -U username |
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| 45 | # -P logname |
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| 46 | # -Q queuename (lpr -Q) |
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[53d7625] | 47 | # -Z random user-specified options |
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[b0d9dda] | 48 | # -a printcap af (accounting file name) |
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| 49 | # -d printcap sd entry (spool dir) |
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| 50 | # -e print job data file name (currently being processed) |
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| 51 | # -h print job originiating host (same as -H) |
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| 52 | # -j job number in spool queue |
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| 53 | # -k print job control file name |
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| 54 | # -l printcap pl (page length) |
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| 55 | # -n user name (same as -L) |
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| 56 | # -s printcap sf (status file) |
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| 57 | # -w printcap pw (page width) |
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| 58 | # -x printcap px (page x dimension) |
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| 59 | # -y printcap py (page y dimension) |
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| 60 | # accounting file name |
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| 61 | |
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| 62 | # All the filter_options from lpd |
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| 63 | getopt('ACFHJLPQRZacdefhijklnprswxy', \%opts); |
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| 64 | |
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| 65 | # Status messages at start of playback |
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[6761cd4] | 66 | open(ZEPHYR, '|/usr/athena/bin/zwrite -d -n -c sipb-auto -i ' . |
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[ba06c7f] | 67 | 'sipbmp3@zsr -s "SIPB LPR music spooler"'); |
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[c711ed9] | 68 | print(ZEPHYR "$opts{'n'}\@$opts{'H'} is playing:\n"); |
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[b0d9dda] | 69 | |
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| 70 | # So, the file we're currently processing is "-d/-e". |
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| 71 | |
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[ba06c7f] | 72 | # Read the metadata information from the file. |
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| 73 | my ($filepath) = catfile($opts{'d'}, $opts{'e'}); |
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| 74 | my ($fileinfo) = ImageInfo($filepath); |
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| 75 | my ($magic) = $fileinfo->{FileType}; |
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[b0d9dda] | 76 | |
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[ba06c7f] | 77 | if ($magic) { |
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[c711ed9] | 78 | printf(ZEPHYR "%s file %s\n", $magic, $opts{'J'}); |
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| 79 | printf(ZEPHYR "\@b(%s)\n", $fileinfo->{'Title'}) if exists $fileinfo->{'Title'}; |
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| 80 | foreach my $key (qw/Artist Album AlbumArtist Tracknumber TrackDuration/) { |
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| 81 | printf(ZEPHYR "%s\n", $fileinfo->{$key}) if exists $fileinfo->{$key}; |
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[ba06c7f] | 82 | } |
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| 83 | } |
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| 84 | elsif (-T $filepath) { |
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| 85 | $filepath = resolve_external_reference($filepath, \%opts); |
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| 86 | } |
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| 87 | close(ZEPHYR); |
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| 88 | play_mplayer_audio($filepath, \%opts); |
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[b0d9dda] | 89 | |
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| 90 | # Play an external stream reference |
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[ba06c7f] | 91 | sub resolve_external_reference { |
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[b0d9dda] | 92 | # Retrieve those command line opts. |
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[ba06c7f] | 93 | my ($filepath, $opts) = @_; |
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[b0d9dda] | 94 | |
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| 95 | my $format, $uri, $userpass; |
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| 96 | |
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[ba06c7f] | 97 | if (<STDIN> =~ /^(\S+)/) { |
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| 98 | $uri=$1; |
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| 99 | |
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| 100 | my $response = $ua->head($uri); |
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| 101 | |
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| 102 | $contenttype=($response->content_type() or "unknown"); |
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| 103 | |
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| 104 | if ($contenttype eq "audio/mpeg") { $format="MP3" } |
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| 105 | elsif ($contenttype eq "application/x-ogg") { $format="OGG" } |
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| 106 | elsif ($contenttype eq "application/ogg") { $format="OGG" } |
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| 107 | elsif ($contenttype eq "audio/x-scpls") { $format="SHOUTCAST" } |
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| 108 | else { |
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| 109 | print ZEPHYR |
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| 110 | "Unknown Content-Type $contenttype for URI $uri\n"; |
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| 111 | close(ZEPHYR); |
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| 112 | } |
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| 113 | } else { |
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[82d34e6] | 114 | print ZEPHYR "Couldn't read URI for external reference\n"; |
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| 115 | close(ZEPHYR); |
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[ba06c7f] | 116 | return $filepath; |
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[b281379] | 117 | } |
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[b0d9dda] | 118 | |
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[ba06c7f] | 119 | if ($format eq "SHOUTCAST") { |
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[53d7625] | 120 | print ZEPHYR "Shoutcast playlist...\n"; |
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| 121 | #Don't close ZEPHYR yet, will print the name of the stream if available |
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[ba06c7f] | 122 | return &get_shoutcast($uri); |
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| 123 | } elsif ($format eq "MP3") { |
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| 124 | } elsif ($format eq "OGG") { |
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[b0d9dda] | 125 | } else { |
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| 126 | print ZEPHYR "Unrecognized stream format: $format\n"; |
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| 127 | } |
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[ba06c7f] | 128 | return $uri; |
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[b0d9dda] | 129 | } |
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| 130 | |
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[53d7625] | 131 | # Process a Shoutcast playlist |
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| 132 | # get_shoutcast(URI) |
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| 133 | sub get_shoutcast { |
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| 134 | my $uri = shift(@_); |
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| 135 | |
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[ba06c7f] | 136 | my $response = $ua->get($uri); |
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| 137 | |
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| 138 | foreach (split("\n", $response->content())) { |
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[53d7625] | 139 | if (/^File\d+=(\S+)/) { |
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| 140 | push(@uris, $1); |
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| 141 | } |
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| 142 | if (/^Title\d+=(.+)$/) { |
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| 143 | push(@titles, $1); |
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| 144 | } |
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| 145 | } |
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| 146 | |
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| 147 | # choose a random server |
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| 148 | $server = int(rand scalar(@uris)); |
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| 149 | # print the name of the stream if available |
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| 150 | print ZEPHYR "$titles[$server]\n"; |
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| 151 | return $uris[$server]; |
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| 152 | } |
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[b0d9dda] | 153 | |
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[ba06c7f] | 154 | sub play_mplayer_audio { |
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| 155 | my ($filepath, $opts) = @_; |
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[b0d9dda] | 156 | |
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[ba06c7f] | 157 | # Prepare to write status: |
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| 158 | open(ZEPHYR, '|/usr/athena/bin/zwrite -d -n -c sipb-auto -i ' . |
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| 159 | 'sipbmp3@zsr -s "SIPB LPR music spooler"'); |
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| 160 | |
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| 161 | # fork for mpg123 |
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| 162 | my $pid = open(MP3STATUS, "-|"); |
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| 163 | unless (defined $pid) { |
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| 164 | print ZEPHYR "Couldn't fork: $!\n"; |
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| 165 | close(ZEPHYR); |
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| 166 | return; |
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| 167 | } |
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| 168 | |
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| 169 | if ($pid) { #parent |
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| 170 | # Check if there were any errors |
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| 171 | if ($_ = <MP3STATUS>) { |
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| 172 | print ZEPHYR "Playback completed with the following errors:\n"; |
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| 173 | print ZEPHYR $_; |
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| 174 | while (<MP3STATUS>) { |
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| 175 | print ZEPHYR $_; |
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| 176 | } |
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| 177 | } else { |
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| 178 | print ZEPHYR "Playback completed successfully.\n"; |
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| 179 | } |
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| 180 | close(MP3STATUS) || print ZEPHYR "mplayer exited $?\n"; |
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| 181 | |
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| 182 | close(ZEPHYR); |
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| 183 | } |
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[b281379] | 184 | else { # child |
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| 185 | # redirect STDERR to STDOUT |
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| 186 | open STDERR, '>&STDOUT'; |
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[ba06c7f] | 187 | # make sure that mplayer doesn't try to intepret the file as keyboard input |
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| 188 | close(STDIN); |
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| 189 | open(STDIN, "/dev/null"); |
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| 190 | #print STDERR Dumper([qw|/usr/bin/mplayer -nolirc -ao alsa -quiet|, $filepath]); |
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[c711ed9] | 191 | exec(qw|/usr/bin/mplayer -nolirc -ao alsa -really-quiet|, $filepath) || |
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[6761cd4] | 192 | die "Couldn't exec"; |
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[b0d9dda] | 193 | } |
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| 194 | } |
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| 195 | |
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| 196 | # ID3 comments often have useless crap because tools like iTunes were |
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| 197 | # written by drooling idiots |
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| 198 | sub filter_comment { |
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| 199 | my $comment = shift(@_); |
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| 200 | |
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| 201 | if ($comment =~ /^engiTunes_CDDB/) { |
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| 202 | return undef; |
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| 203 | } |
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| 204 | return $comment; |
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| 205 | } |
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| 206 | |
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| 207 | |
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