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 = \
$extension_soname = $extension . \
$extension_fullname = PHP_EXTENSION_DIR . \ // load extension
if (!extension_loaded($extension)) {
dl($extension_soname) or die(\ }
if (php_sapi_name() != 'cli') { echo ' '; }
printf(\
printf(\ printf(\VCODEC_BUILD_NUMBER);
printf(\VCODEC_VERSION_NUMBER); print_class_methods(\ print_class_methods(\
// get an array for movies from the test media directory
$movies = getDirFiles(dirname(__FILE__) . '/tests/test_media'); echo \ foreach($movies as $movie) {
$mov = new ffmpeg_movie($movie);
printf(\
printf(\ printf(\ printf(\ printf(\ printf(\ printf(\
printf(\ printf(\
printf(\ if ($mov->hasAudio()) {
printf(\ printf(\ printf(\
printf(\ printf(\ }
printf(\ if ($mov->hasVideo()) {
printf(\ printf(\ printf(\ printf(\ printf(\ printf(\
printf(\ $frame = $mov->getFrame(10);
printf(\
printf(\ printf(\ printf(\ }
echo \}
if (php_sapi_name() != 'cli') { echo ''; }
/* FUNCTIONS */
function print_class_methods($class) {
echo \ $methods = get_class_methods($class); if (is_array($methods)) {
foreach($methods as $method) { echo $method . \ }
} else {
echo \ } }
function getDirFiles($dirPath) {
if ($handle = opendir($dirPath)) {
while (false !== ($file = readdir($handle))) { $fullpath = $dirPath . '/' . $file;
if (!is_dir($fullpath) && $file != \&& $file != \
$filesArr[] = trim($fullpath); }
closedir($handle); }
return $filesArr; } ?>
希望本文所述对大家PHP程序设计有所帮助。