脚本宝典收集整理的这篇文章主要介绍了php使用ffmpeg获取视频信息并截图的实现方法，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。

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：

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;
}
?>

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