/usr/share/perl5/FlashVideo/Site/Ted.pm is in get-flash-videos 1.25~git2012.06.27-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | # Part of get-flash-videos. See get_flash_videos for copyright.
package FlashVideo::Site::Ted;
use strict;
use FlashVideo::Utils;
use FlashVideo::JSON;
sub find_video {
my ($self, $browser, $embed_url, $prefs) = @_;
my $basefilename;
if ($browser->content =~ m{<noscript.*download.ted.com/talks/([^.]+)\.mp4.*noscript>}s) {
$basefilename = $1;
} else {
die "Unable to find download link";
}
# Get subtitles if requested. Use the LANG variable to choose the language.
# There is an intro to the video which isn't included in the subtitle timing info
if ($prefs->subtitles) {
my $lang = "";
if ($browser->content =~ m{talkID = (\d+);}s) {
my $talkID = $1;
my $intro_time = 15000;
if ($browser->content =~ m{introDuration:(\d+)}s) {
$intro_time = int($1);
} else {
error "Can't find the intro duration, so guessing at 15 seconds.";
}
$ENV{LANG} =~ /^([^_]*)/;
$lang = $1;
if (!$lang) {
info "Unable to determine your language, using English";
$lang = "en";
}
info "Downloading subtitles";
get_subtitles($browser, $basefilename . ".srt", $intro_time,
"http://www.ted.com/talks/subtitles/id/$talkID/lang/$lang/format/json");
} else {
error "Unable to determine the talk ID, so can't get the subtitles";
}
}
my $quality = $prefs->{quality};
if ($quality eq "low") {
$quality = "-light";
} elsif ($quality eq "medium") {
$quality = "";
} elsif ($quality eq "high") {
$quality = "-480p";
} else {
die "Unknown quality setting";
}
my $url = "http://download.ted.com/talks/" . $basefilename . $quality . ".mp4";
# the url will be redirected to the real one
$browser->allow_redirects;
return $url, $basefilename . ".mp4";
}
sub get_subtitles {
my ($browser, $filename, $intro_time, $url) = @_;
$browser->get($url);
if (!$browser->success) {
error "Couldn't download subtitles: " . $browser->response->status_line;
return;
}
json_to_srt($browser->content, $filename, $intro_time);
}
# JSON to SRT subtitle conversion from zakflash
sub json_to_srt {
my ($subdata, $filename, $intro_time) = @_;
open (SRT, '>', $filename) or die "Can't open subtitles file $filename: $!";
my $subtitle_count = 0;
my $subdata = from_json($subdata);
foreach my $subtitle (@{ $subdata->{captions} }) {
$subtitle_count++; # SubRip starts at 1
# SubRip format:
# 1
# 00:00:05,598 --> 00:00:07,131
# (screaming)
#
# 2
# 00:00:07,731 --> 00:00:09,298
# D'oh!
my ($srt_start, $srt_end) = convert_to_srt_time(
$subtitle->{startTime} + $intro_time,
$subtitle->{duration},
);
print SRT "$subtitle_count\n" .
"$srt_start --> $srt_end\n" .
"$subtitle->{content}\n\n";
}
close SRT;
}
sub convert_to_srt_time {
my ($start, $duration) = @_;
return format_srt_time($start),
format_srt_time($start + $duration);
}
sub format_srt_time {
my $time = shift;
my $seconds = int($time / 1000);
my $milliseconds = $time - ($seconds * 1_000);
return sprintf "%02d:%02d:%02d,%03d", (gmtime $seconds)[2, 1, 0],
$milliseconds;
}
1;
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