php获取视频截图,php使用ffmpeg获取视频信息并截图的实现方法

- 日理万妓 2022-11-12 09:41 241阅读 0赞

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：

希望本文所述对大家PHP程序设计有所帮助。

php获取视频截图,php使用ffmpeg获取视频信息并截图的实现方法

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