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feat: add transcript display to episode page

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+ fix transcript parser

closes #411
This commit is contained in:
Guy Martin (Dwev) 2024-04-17 09:13:07 +00:00 • committed by Yassine Doghri
commit 4d141fceae
9 changed files with 274 additions and 23 deletions
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48
modules/Media/TranscriptParser.php
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@ -144,6 +144,7 @@ class TranscriptParser
break;
case VTT_STATE_BLANK:
$speakercount = 0;
$state = VTT_STATE_TIME;
break;
@ -154,20 +155,8 @@ class TranscriptParser
case VTT_STATE_TEXT:
if (trim($line) === '') {
$sub = new stdClass();
$sub->number = $subNum;
[$startTime, $endTime] = explode(' --> ', $subTime);
$sub->startTime = $this->getSecondsFromVTTTimeString($startTime);
$sub->endTime = $this->getSecondsFromVTTTimeString($endTime);
$sub->text = trim($subText);
if ($subSpeaker !== '') {
$sub->speaker = trim((string) $subSpeaker);
}
$subText = '';
$state = VTT_STATE_TIME;
$subs[] = $sub;
++$subNum;
//$subs[] = $sub;
} elseif ($subText !== '') {
$subText .= PHP_EOL . $line;
} else {
@ -179,18 +168,36 @@ class TranscriptParser
* 2. Who is speaking
* 3. Any styling cues encoded in the VTT (which we dump)
* More information: https://www.w3.org/TR/webvtt1/
*/
$vtt_speaker_pattern = '/^<.*>/';
$removethese = ['<', '>'];
*
* If there is more than one speaker in a cue, we also need
* to handle this, to repeat the start and end times for
* the second cue.
* */
$vtt_speaker_pattern = '/^<.*>/U';
$removethese = ['</v>', '<', '>'];
preg_match($vtt_speaker_pattern, $line, $matches);
if (isset($matches[0])) {
$subVoiceCue = explode(' ', str_replace($removethese, '', $matches[0]));
$subSpeaker = $subVoiceCue[1];
$subVoiceCue = str_replace($removethese, '', $matches[0]);
$subSpeaker = substr($subVoiceCue, strpos($subVoiceCue, ' '));
} else {
$subSpeaker = '';
}
$subText .= preg_replace($vtt_speaker_pattern, '', $line);
$sub = new stdClass();
$sub->number = $subNum;
[$startTime, $endTime] = explode(' --> ', $subTime);
$sub->startTime = $this->getSecondsFromVTTTimeString($startTime);
$sub->endTime = $this->getSecondsFromVTTTimeString($endTime);
$sub->text = trim($subText);
if ($subSpeaker !== '') {
$sub->speaker = trim($subSpeaker);
}
$subText = '';
$subs[] = $sub;
++$subNum;
}
break;
@ -215,6 +222,11 @@ class TranscriptParser
private function getSecondsFromVTTTimeString(string $timeString): float
{
$timeString = explode('.', $timeString);
if (substr_count($timeString[0], ':') === 1) {
// add hours if only MM:SS.mmm format
$timeString[0] = '00:' . $timeString[0];
}
return (strtotime($timeString[0]) - strtotime('TODAY')) + (float) "0.{$timeString[1]}";
}
}