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derickr/whisper-net-to-srt.php

Last active May 3, 2024 12:36
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Revisions

  1. derickr revised this gist May 3, 2024. No changes.
  2. derickr created this gist Dec 20, 2023.
    81 changes: 81 additions & 0 deletions whisper-net-to-srt.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,81 @@
    <?php
    /**
    1
    00:00:03,600 --> 00:00:09,740
    Hello, today we're going to have a look at how to make a flame graph, a new feature
    2
    00:00:09,740 --> 00:00:11,920
    in Xdebug 3.3.
    3
    00:00:12,620 --> 00:00:16,920
    Flame graphs are an interesting way of showing where an application spends a lot of time.
    */

    $f = json_decode( file_get_contents( $argv[1] ) );

    $segmentCounter = 0;

    $segmentText = '';
    $segmentLength = 0;
    $segmentStart = 0;

    $lastStart = 0;
    $lastEnd = 0;

    foreach ( $f->segments as $segment )
    {
    foreach ( $segment->words as $word )
    {
    if ($word->start > $lastEnd + 0.25) {
    $segmentEnd = $lastEnd;
    emit();
    $segmentStart = $word->start;
    }

    if ($segmentLength > 60) {
    $segmentText = trim($segmentText) . "\n" . ltrim($word->word);
    $segmentLength = strlen($word->word);
    } else {
    $segmentText .= $word->word;
    $segmentLength += strlen($word->word);
    }

    $lastEnd = $word->end;
    }
    }

    $segmentEnd = $lastEnd;
    emit();

    function emit()
    {
    global $segmentCounter, $segmentStart, $segmentEnd, $segmentText, $segmentLength;

    $secondsStart = (int) $segmentStart;
    $milliSecondsStart = (int) (($segmentStart - $secondsStart) * 1000);
    $secondsEnd = (int) $segmentEnd;
    $milliSecondsEnd = (int) (($segmentEnd - $secondsEnd) * 1000);

    $segmentStartFmt = sprintf("%02d:%02d:%02d,%03d",
    $secondsStart / 3600,
    $secondsStart / 60,
    $secondsStart % 60,
    $milliSecondsStart);
    $segmentEndFmt = sprintf("%02d:%02d:%02d,%03d",
    $secondsEnd / 3600,
    $secondsEnd / 60,
    $secondsEnd % 60,
    $milliSecondsEnd);

    if (strlen($segmentText) == 0) {
    return;
    }

    printf("%s\n%s --> %s\n%s\n\n", $segmentCounter, $segmentStartFmt, $segmentEndFmt, trim($segmentText));
    $segmentText = '';
    $segmentLength = 0;

    $segmentCounter++;
    }