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August 24, 2021 13:54
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Create video thumbnail from slider concept
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| <?php | |
| $file = "jellyfish.mkv"; | |
| $thumb = "thumbnail.jpg"; | |
| if (isset($_POST['time_string'])) { | |
| exec("ffmpeg -y -ss {$_POST['time_string']} -i $file -vframes 1 -q:v 1 $thumb"); | |
| } elseif (!file_exists("thumbnail.jpg")) { | |
| exec("ffmpeg -y -ss 00:00:01 -i $file -vframes 1 -q:v 1 $thumb"); | |
| } | |
| ?> | |
| <html lang="en"> | |
| <head> | |
| <title>Create thumbnail concept</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootswatch/5.1.0/litera/bootstrap.min.css"/> | |
| <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/noUiSlider/14.7.0/nouislider.css"/> | |
| </head> | |
| <body> | |
| <div class="container"> | |
| <div class="row"> | |
| <div class="col-12"> | |
| <div class="card shadow"> | |
| <div class="card-header"> | |
| <h2 class="text-center">Drag toggle to create thumbnail</h2> | |
| </div> | |
| <div class="card-body px-4"> | |
| <?php | |
| function getSeconds(string $file): float | |
| { | |
| return exec("ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 $file"); | |
| } | |
| $seconds = getSeconds($file); | |
| ?> | |
| <img id="thumbnail" class="img-fluid" src="<?= $thumb ?>" width="100%" | |
| alt="<?= $file ?> video thumbnail"> | |
| <div class="row text-center mt-4"> | |
| <div id="slider"></div> | |
| </div> | |
| <div class="row text-center mt-3"> | |
| <div class="col-12"> | |
| <p>Thumbnail from video time: <code><span id="seconds">00:00:01</span></code></p> | |
| <a id="download" href="thumbnail.jpg" download="thumbnail.jpg" class="btn btn-primary" | |
| role="button">Download thumbnail</a> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/noUiSlider/14.7.0/nouislider.min.js"></script> | |
| <script type="application/javascript"> | |
| let slider = document.getElementById("slider"); | |
| noUiSlider.create(slider, { | |
| start: 0, | |
| connect: true, | |
| step: 1, | |
| range: { | |
| min: 0, | |
| max: <?=$seconds?> | |
| } | |
| }); | |
| let min_element = document.getElementById("seconds"); | |
| slider.noUiSlider.on("change", function (values, handle) { | |
| let slider_value = slider.noUiSlider.get(); | |
| let seconds_string = new Date(slider_value * 1000).toISOString().substr(11, 8); | |
| min_element.innerHTML = seconds_string; | |
| createThumb(seconds_string) | |
| }); | |
| function createThumb(time) { | |
| $.ajax({ | |
| type: "POST", | |
| url: "index.php", | |
| data: {"time_string": time}, | |
| success: function (result) { | |
| let d = new Date(); | |
| $("#thumbnail").attr("src", "thumbnail.jpg?" + d.getTime()); | |
| } | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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