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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4 | # $Id: sipbmp3-filter,v 1.26 2009/02/20 00:27:17 geofft Exp root $ |
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5 | # $Source: /usr/local/bin/RCS/sipbmp3-filter,v $ |
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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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15 | # apparently neither does Quentin Smith <quentin@mit.edu> |
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16 | |
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17 | use Image::ExifTool qw(ImageInfo); |
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18 | use File::Spec::Functions; |
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19 | use File::Temp qw{tempdir}; |
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20 | use File::Basename qw(basename); |
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21 | use LWP::UserAgent; |
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22 | use Data::Dumper; |
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23 | use IPC::Open2; |
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24 | |
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25 | my $zephyr_class = "sipb-test"; |
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26 | my $host = `hostname`; |
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27 | my $queue = "sipbmp3"; |
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28 | |
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29 | # Configuration |
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30 | my $config_file = "/etc/sipbmp3-filter-config.pl"; |
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31 | if (-r $config_file) { |
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32 | # Inline the configuration file |
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33 | local $/; |
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34 | my $fh; |
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35 | open $fh, $config_file; |
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36 | eval <$fh>; |
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37 | } |
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38 | |
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39 | my $ua = new LWP::UserAgent; |
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40 | |
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41 | close(STDERR); |
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42 | open(STDERR, ">>", "/tmp/sipbmp3.log") or warn "Couldn't open log: $!"; |
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43 | |
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44 | $ENV{"TERM"}="vt100"; |
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45 | |
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46 | print STDERR "STDERR FROM SPOOL FILTER\n"; |
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47 | |
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48 | # set real uid to be effective uid |
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49 | $< = $>; |
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50 | |
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51 | # Select the correct output device and set the volume |
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52 | #system("amixer -q set Headphone 100\% unmute"); |
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53 | |
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54 | # The command line we get from lpd is (no spaces between options and args): |
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55 | # -C lpr -C class |
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56 | # -A LPRng internal identifier |
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57 | # -H originating host |
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58 | # -J lpr -J jobname (default: list of files) |
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59 | # -L lpr -U username |
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60 | # -P logname |
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61 | # -Q queuename (lpr -Q) |
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62 | # -Z random user-specified options |
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63 | # -a printcap af (accounting file name) |
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64 | # -d printcap sd entry (spool dir) |
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65 | # -e print job data file name (currently being processed) |
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66 | # -h print job originiating host (same as -H) |
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67 | # -j job number in spool queue |
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68 | # -k print job control file name |
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69 | # -l printcap pl (page length) |
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70 | # -n user name (same as -L) |
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71 | # -s printcap sf (status file) |
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72 | # -w printcap pw (page width) |
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73 | # -x printcap px (page x dimension) |
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74 | # -y printcap py (page y dimension) |
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75 | # accounting file name |
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76 | |
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77 | printf(STDERR "Got \@ARGV: %s\n", Dumper(\@ARGV)); |
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78 | |
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79 | my %opts; |
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80 | |
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81 | my @NEWARGV; |
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82 | |
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83 | foreach my $arg (@ARGV) { |
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84 | if ($arg =~ m/^-([a-zA-Z])(.*)$/) { |
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85 | $opts{$1} = $2; |
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86 | } else { |
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87 | push @NEWARGV, @ARGV; |
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88 | } |
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89 | } |
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90 | |
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91 | @ARGV = @NEWARGV; |
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92 | |
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93 | printf(STDERR Dumper(\%opts)); |
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94 | |
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95 | # Status messages at start of playback |
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96 | open(ZEPHYR, '|/usr/athena/bin/zwrite -d -n -c '. $zephyr_class .' -i ' . |
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97 | $queue.'@'.$host.' -s "SIPB LPR music spooler"'); |
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98 | |
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99 | # For the Now Playing remctl command |
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100 | open(STATUS, '>', '/var/run/sipbmp3/status') or die("Can't open status file /var/run/sipbmp3/status"); |
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101 | |
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102 | print(ZEPHYR "$opts{'n'}\@$opts{'H'} is playing:\n"); |
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103 | print(STATUS "User: $opts{'n'}\@$opts{'H'}\n"); |
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104 | |
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105 | # SIGHUP handler |
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106 | sub clear_status { |
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107 | # Possible race condition if the previous status is still going |
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108 | open(STA, '>', '/var/run/sipbmp3/status'); |
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109 | close(STA); |
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110 | open(ZEPH, '|/usr/athena/bin/zwrite -d -n -c '. $zephyr_class .' -i '. |
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111 | $queue.'@'.$host.' -s "SIPB LPR music spooler"'); |
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112 | print(ZEPH "Playback aborted.\n"); |
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113 | close(ZEPH); |
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114 | die; |
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115 | } |
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116 | $SIG{HUP} = \&clear_status; |
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117 | |
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118 | # So, the file we're currently processing is "-d/-e". |
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119 | |
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120 | # Read the metadata information from the file. |
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121 | my ($filepath) = catfile($opts{'d'}, $opts{'e'}); |
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122 | my ($fileinfo) = ImageInfo($filepath); |
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123 | my ($magic) = $fileinfo->{FileType}; |
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124 | |
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125 | if ($magic) { |
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126 | printf(ZEPHYR "%s file %s\n", $magic, $opts{'J'}); |
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127 | printf(STATUS "Filetype: %s\n", $magic); |
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128 | printf(STATUS "Filename: %s\n", $opts{'J'}); |
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129 | if (exists $fileinfo->{'Title'}) { |
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130 | printf(ZEPHYR "\@b{%s}\n", $fileinfo->{'Title'}) if exists $fileinfo->{'Title'}; |
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131 | printf(STATUS "Title: %s\n", $fileinfo->{'Title'}); |
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132 | } |
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133 | foreach my $key (qw/Artist Album AlbumArtist/) { |
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134 | if (exists $fileinfo->{$key}) { |
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135 | printf(ZEPHYR "%s\n", $fileinfo->{$key}) if exists $fileinfo->{$key}; |
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136 | printf(STATUS "%s: %s\n", $key, $fileinfo->{$key}); |
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137 | } |
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138 | } |
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139 | my $tempdir = tempdir(); |
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140 | $opts{'J'} =~ s/_mp3/.mp3/; #awful hack -- geofft |
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141 | my $newpath = $tempdir . '/' . basename($opts{'J'}); |
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142 | symlink($filepath, $newpath); |
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143 | $filepath = $newpath; |
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144 | } |
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145 | elsif ($opts{'C'} eq 'Z') { |
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146 | $filepath = resolve_external_reference($filepath, \%opts); |
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147 | if ($filepath =~ m|http://www\.youtube\.com/watch\?v=|) { |
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148 | $pid = open2($out, $in, qw{youtube-dl -g2}, $filepath); |
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149 | $title = <$out>; |
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150 | print ZEPHYR "YouTube video $filepath\n$title"; |
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151 | print STATUS "YouTube video $filepath\n$title"; |
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152 | $filepath = <$out>; |
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153 | chomp $filepath; |
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154 | waitpid $pid, 0; |
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155 | } else { |
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156 | print STDERR "Resolved external reference to $filepath\n"; |
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157 | printf(ZEPHYR "%s\n", $filepath); |
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158 | printf(STATUS "External: %s\n", $filepath); |
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159 | } |
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160 | } |
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161 | elsif (-T $filepath) { |
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162 | split_playlist($filepath, \%opts); |
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163 | close(ZEPHYR); |
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164 | close(STATUS); |
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165 | exit 0; |
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166 | } |
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167 | |
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168 | #printf(STDERR "Job priority %s\n", $opts{'C'}) if $opts{'C'} eq 'Z'; |
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169 | #printf(ZEPHYR "Job priority %s\n", $opts{'C'}) if ($opts{'C'} && ($opts{'C'} ne 'A')); |
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170 | close(ZEPHYR); |
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171 | close(STATUS); |
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172 | play_mplayer_audio($filepath, \%opts); |
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173 | |
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174 | if ($magic) { |
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175 | unlink($newpath); |
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176 | rmdir($tempdir); |
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177 | } |
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178 | |
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179 | # Play an external stream reference |
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180 | sub resolve_external_reference { |
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181 | # Retrieve those command line opts. |
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182 | my ($filepath, $opts) = @_; |
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183 | |
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184 | my $format, $uri, $userpass; |
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185 | |
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186 | if (<STDIN> =~ /^(\S+)/) { |
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187 | $uri=$1; |
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188 | |
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189 | if ($uri =~ m|http://www\.youtube\.com/watch\?v=|) { |
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190 | return $uri; |
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191 | } |
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192 | |
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193 | my $response = $ua->head($uri); |
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194 | |
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195 | $contenttype=($response->content_type() or "unknown"); |
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196 | |
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197 | if ($contenttype eq "audio/mpeg") { $format="MP3" } |
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198 | elsif ($contenttype eq "application/x-ogg") { $format="OGG" } |
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199 | elsif ($contenttype eq "application/ogg") { $format="OGG" } |
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200 | elsif ($contenttype eq "audio/x-scpls") { $format="SHOUTCAST" } |
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201 | else { |
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202 | print ZEPHYR |
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203 | "Unknown Content-Type $contenttype for URI $uri\n"; |
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204 | } |
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205 | } else { |
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206 | print ZEPHYR "Couldn't read URI for external reference\n"; |
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207 | return $filepath; |
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208 | } |
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209 | |
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210 | if ($format eq "SHOUTCAST") { |
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211 | print ZEPHYR "Shoutcast playlist...\n"; |
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212 | #Don't close ZEPHYR yet, will print the name of the stream if available |
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213 | return &get_shoutcast($uri); |
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214 | } elsif ($format eq "MP3") { |
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215 | } elsif ($format eq "OGG") { |
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216 | } else { |
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217 | print ZEPHYR "Unrecognized stream format: $format\n"; |
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218 | } |
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219 | return $uri; |
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220 | } |
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221 | |
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222 | sub split_playlist { |
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223 | my ($file, $opts) = @_; |
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224 | |
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225 | my $i = 0; |
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226 | |
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227 | while (<STDIN>) { |
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228 | chomp; |
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229 | if (/^([^#]\S+)/) { |
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230 | printf (STDERR "Found line: %s\n", $_); |
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231 | open(LPR, "|-", 'mit-lpr', '-P'.$queue.'@localhost', '-CZ', '-J'.$opts->{J}); |
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232 | print LPR $1; |
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233 | close(LPR); |
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234 | $i++; |
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235 | } |
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236 | } |
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237 | printf(ZEPHYR "Playlist containing %d valid entries, split into separate jobs.\n", $i); |
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238 | } |
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239 | |
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240 | # Process a Shoutcast playlist |
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241 | # get_shoutcast(URI) |
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242 | sub get_shoutcast { |
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243 | my $uri = shift(@_); |
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244 | |
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245 | my $response = $ua->get($uri); |
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246 | |
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247 | foreach (split("\n", $response->content())) { |
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248 | if (/^File\d+=(\S+)/) { |
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249 | push(@uris, $1); |
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250 | } |
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251 | if (/^Title\d+=(.+)$/) { |
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252 | push(@titles, $1); |
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253 | } |
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254 | } |
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255 | |
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256 | # choose a random server |
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257 | $server = int(rand scalar(@uris)); |
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258 | # print the name of the stream if available |
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259 | print ZEPHYR "$titles[$server]\n"; |
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260 | return $uris[$server]; |
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261 | } |
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262 | |
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263 | sub play_mplayer_audio { |
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264 | my ($filepath, $opts) = @_; |
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265 | |
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266 | # Prepare to write status: |
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267 | open(ZEPHYR, '|/usr/athena/bin/zwrite -d -n -c '.$zephyr_class.' -i ' . |
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268 | $queue.'@'.$host.' -s "SIPB LPR music spooler"'); |
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269 | |
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270 | # fork for mpg123 |
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271 | my $pid = open(MP3STATUS, "-|"); |
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272 | unless (defined $pid) { |
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273 | print ZEPHYR "Couldn't fork: $!\n"; |
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274 | close(ZEPHYR); |
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275 | return; |
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276 | } |
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277 | |
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278 | if ($pid) { #parent |
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279 | # Check if there were any errors |
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280 | if ($_ = <MP3STATUS>) { |
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281 | print ZEPHYR "Playback completed with the following errors:\n"; |
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282 | print ZEPHYR $_; |
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283 | while (<MP3STATUS>) { |
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284 | print ZEPHYR $_; |
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285 | } |
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286 | } else { |
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287 | print ZEPHYR "Playback completed successfully.\n"; |
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288 | } |
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289 | close(MP3STATUS) || print ZEPHYR "mplayer exited $?\n"; |
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290 | |
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291 | close(ZEPHYR); |
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292 | open(STATUS, '>', '/var/run/sipbmp3/status'); |
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293 | close(STATUS); |
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294 | } |
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295 | else { # child |
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296 | # redirect STDERR to STDOUT |
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297 | open STDERR, '>&STDOUT'; |
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298 | # make sure that mplayer doesn't try to intepret the file as keyboard input |
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299 | close(STDIN); |
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300 | open(STDIN, "/dev/null"); |
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301 | #print STDERR Dumper([qw|/usr/bin/mplayer -nolirc -ao alsa -quiet|, $filepath]); |
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302 | my @args = (qw|/usr/bin/mplayer -novideo -vo null -nolirc -ao alsa -cache 512 -really-quiet |, $filepath); |
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303 | #print STDERR "About to exec: ", Dumper([@args]); |
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304 | exec(@args) || |
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305 | die "Couldn't exec"; |
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306 | } |
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307 | } |
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308 | |
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309 | # ID3 comments often have useless crap because tools like iTunes were |
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310 | # written by drooling idiots |
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311 | sub filter_comment { |
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312 | my $comment = shift(@_); |
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313 | |
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314 | if ($comment =~ /^engiTunes_CDDB/) { |
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315 | return undef; |
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316 | } |
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317 | return $comment; |
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318 | } |
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319 | |
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320 | |
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