- <?php
- // references <a href="http://www.longtailvideo.com/support/forum/Modules/12661/External-PHP-with-FFmpeg-using-readfile-">http://www.longtailvideo.com/support/forum/Modules/12661/External-PHP-with-FFmpeg-using-readfile-
- // generate a preview image from an FLV file on-the-fly, or to save
- // call with: ffmpeg_image.php?file=video.flv&time=00:00:05&browser=true
- // call with: ffmpeg_image.php?file=video.flv&percent=75.3&browser=true
- // no time defaults to "00:00:01" (one second), no browser defaults to "true"
- $videofile = (isset($_GET['file'])) ? strval($_GET['file']) : 'video.flv';
- $image = substr($videofile, 0, strlen($videofile) - 4);
- $time = (isset($_GET['time'])) ? strval($_GET['time']) : '00:00:01';
- // debug (" File: ", $videofile);
- // debug (" Image: ", $image);
- // debug (" Time: ", $time);
- // check time format
- if (!preg_match('/\\d\\d:\\d\\d:\\d\\d/', $time))
- {
- $time = "00:00:00";
- }
- if (isset($_GET['percent']))
- {
- $percent = $_GET['percent'];
- // debug (" Percent: ", $percent);
- ob_start();
- exec("/usr/bin/ffmpeg -i \\"". $videofile . "\\" 2>&1");
- $duration = ob_get_contents();
- ob_end_clean();
- // debug ("Duration: ", $duration);
- preg_match('/Duration: (.*?),/', $duration, $matches);
- $duration = $matches[1];
- // debug ("Duration: ", $duration);
- $duration_array = split(':', $duration);
- $duration = $duration_array[0] * 3600 + $duration_array[1] * 60 + $duration_array[2];
- $time = $duration * $percent / 100;
- // debug (" Time: ", $time);
- $time = intval($time/3600) . ":" . intval(($time-(intval($time/3600)*3600))/60) . ":" . sprintf("%01.3f", ($time-(intval($time/60)*60)));
- // debug (" Time: ", $time);
- }
- $browser = (isset($_GET['browser'])) ? strval($_GET['browser']) : 'true';
- // debug (" Browser: ", $browser);
- if ($browser == "true")
- {
- header('Content-Type: image/png');
- exec("/usr/bin/ffmpeg -vcodec png -i \\"" . $videofile . "\\" -ss " . $time . " -vframes 1 -f image2 -");
- //header('Content-Type: image/jpeg');
- //exec("/usr/bin/ffmpeg -vcodec mjpeg -i \\"" . $videofile . "\\" -ss " . $time . " -vframes 1 -f image2 -");
- }
- else
- {
- exec("/usr/bin/ffmpeg -vcodec png -i \\"" . $videofile . "\\" -ss " . $time . " -vframes 1 -f image2 \\"" . $image . "\\"%d.png");
- //exec("/usr/bin/ffmpeg -vcodec mjpeg -i \\"" . $videofile . "\\" -ss " . $time . " -vframes 1 -f image2 \\"" . $image . "\\"%d.jpg");
- }
- ?>
- //该片段来自于http://www.codesnippet.cn/detail/190320132476.html
来源: http://www.codesnippet.cn/detail/190320132476.html