php使用ffmpeg获取视频信息并截图的实现方法
程序员文章站
2024-04-02 10:52:34
本文实例讲述了php使用ffmpeg获取视频信息并截图的方法。分享给大家供大家参考,具体如下:
$movie = new ffmpeg_movie('4.mp4'...
本文实例讲述了php使用ffmpeg获取视频信息并截图的方法。分享给大家供大家参考,具体如下:
$movie = new ffmpeg_movie('4.mp4'); $width=$movie->getframewidth(); $height=$movie->getframeheight(); $count= $movie->getframecount(); print $count . ''; $n = round ( $count/16 ); print $n . ''; for ( $i = 1; $i <= 1; $i ++ ) { $img = 'screencap' . $i . '.png'; $x = $n * $i; $f = $movie->getframe($x); $gd_image = $f->togdimage(); imagepng($gd_image, $img); imagedestroy($gd_image); echo " \n"; } $extension = "ffmpeg"; $extension_soname = $extension . "." . php_shlib_suffix; $extension_fullname = php_extension_dir . "/" . $extension_soname; // load extension if (!extension_loaded($extension)) { dl($extension_soname) or die("can't load extension $extension_fullname\n"); } if (php_sapi_name() != 'cli') { echo ' '; } printf("ffmpeg-php version string: %s\n", ffmpeg_php_version_string); printf("ffmpeg-php build date string: %s\n", ffmpeg_php_build_date_string); printf("libavcodec build number: %d\n", libavcodec_build_number); printf("libavcodec version number: %d\n", libavcodec_version_number); print_class_methods("ffmpeg_movie"); print_class_methods("ffmpeg_frame"); // get an array for movies from the test media directory $movies = getdirfiles(dirname(__file__) . '/tests/test_media'); echo "--------------------\n\n"; foreach($movies as $movie) { $mov = new ffmpeg_movie($movie); printf("file name = %s\n", $mov->getfilename()); printf("duration = %s seconds\n", $mov->getduration()); printf("frame count = %s\n", $mov->getframecount()); printf("frame rate = %0.3f fps\n", $mov->getframerate()); printf("comment = %s\n", $mov->getcomment()); printf("title = %s\n", $mov->gettitle()); printf("author = %s\n", $mov->getauthor()); printf("copyright = %s\n", $mov->getcopyright()); printf("get bit rate = %d\n", $mov->getbitrate()); printf("has audio = %s\n", $mov->hasaudio() == 0 ? 'no' : 'yes'); if ($mov->hasaudio()) { printf("get audio stream id= %s\n", $mov->getaudiostreamid()); printf("get audio codec = %s\n", $mov->getaudiocodec()); printf("get audio bit rate = %d\n", $mov->getaudiobitrate()); printf("get audio sample rate = %d \n", $mov->getaudiosamplerate()); printf("get audio channels = %s\n", $mov->getaudiochannels()); } printf("has video = %s\n", $mov->hasvideo() == 0 ? 'no' : 'yes'); if ($mov->hasvideo()) { printf("frame height = %d pixels\n", $mov->getframeheight()); printf("frame width = %d pixels\n", $mov->getframewidth()); printf("get video stream id= %s\n", $mov->getvideostreamid()); printf("get video codec = %s\n", $mov->getvideocodec()); printf("get video bit rate = %d\n", $mov->getvideobitrate()); printf("get pixel format = %s\n", $mov->getpixelformat()); printf("get pixel aspect ratio = %s\n", $mov->getpixelaspectratio()); $frame = $mov->getframe(10); printf("get frame = %s\n", is_object($frame) ? 'true' : 'false'); printf(" get frame number = %d\n", $mov->getframenumber()); printf(" get frame width = %d\n", $frame->getwidth()); printf(" get frame height = %d\n", $frame->getheight()); } echo "\n--------------------\n\n"; } if (php_sapi_name() != 'cli') { echo ''; } /* functions */ function print_class_methods($class) { echo "\nmethods available in class '$class':\n"; $methods = get_class_methods($class); if (is_array($methods)) { foreach($methods as $method) { echo $method . "\n"; } } else { echo "no methods defined\n"; } } function getdirfiles($dirpath) { if ($handle = opendir($dirpath)) { while (false !== ($file = readdir($handle))) { $fullpath = $dirpath . '/' . $file; if (!is_dir($fullpath) && $file != "cvs" && $file != "." && $file != "..") $filesarr[] = trim($fullpath); } closedir($handle); } return $filesarr; } ?>
运行效果如下图所示:
更多关于php相关内容感兴趣的读者可查看本站专题:《php图形与图片操作技巧汇总》、《php操作office文档技巧总结(包括word,excel,access,ppt)》、《php日期与时间用法总结》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家php程序设计有所帮助。
下一篇: PHP实现的进度条效果详解