php使用ffmpeg获取视频信息并截图的实现方法
发布:smiling 来源: PHP粉丝网 添加日期:2019-08-12 15:06:51 浏览: 评论:0
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);
- //phpfensi.com
- }
- closedir($handle);
- }
- return $filesArr;
- }
- ?>
Tags: php截图 ffmpeg
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