function analyzeMediaFile(&$metaData, $filePath = NULL, $cachePath = NULL)
{
if (!isset($metaData->fileName) || !isset($metaData->fileType)) {
throw new Exception("meta data invalid");
}
$file = $filePath . DIRECTORY_SEPARATOR . $metaData->fileName;
if (!is_file($file) || !is_readable($file)) {
throw new Exception("file does not exist");
}
if (!is_dir($cachePath)) {
throw new Exception("cache dir does not exist");
}
switch ($metaData->fileType) {
case "video/quicktime":
case "application/ogg":
case "audio/mpeg":
case "video/mp4":
case "video/x-msvideo":
case "video/ogg":
case "video/webm":
case "video/x-ms-asf":
case "video/x-flv":
case "audio/x-wav":
case "application/octet-stream":
if (isMediaFile($metaData, $filePath)) {
$media = new ffmpeg_movie($file, FALSE);
/****************************************************
* VIDEO
****************************************************/
if ($media->hasVideo()) {
$metaData->video->codec = $media->getVideoCodec();
$metaData->video->width = $media->getFrameWidth();
$metaData->video->height = $media->getFrameHeight();
$metaData->video->bitrate = $media->getVideoBitRate();
$metaData->video->framerate = $media->getFrameRate();
$metaData->video->duration = $media->getDuration();
/* Video Still */
$stillFile = $cachePath . DIRECTORY_SEPARATOR . uniqid("ft_") . ".png";
$fc = (int) ($media->getFrameCount() / 32);
/* frame count is not necessarily reliable! */
foreach (array($fc, 100, 10, 1) as $fno) {
if ($fno == 0) {
continue;
}
$f = $media->getFrame($fno);
if ($f !== FALSE) {
imagepng($f->toGDImage(), $stillFile);
$metaData->video->still = basename($stillFile);
break;
}
}
/* Video Thumbnails */
$thumbSizes = array(90, 180, 360);
foreach ($thumbSizes as $tS) {
$thumbFile = $cachePath . DIRECTORY_SEPARATOR . uniqid("ft_") . ".png";
list($thumb_width, $thumb_height) = generateThumbnail($stillFile, $thumbFile, $tS);
$metaData->video->thumbnail->{$tS}->file = basename($thumbFile);
$metaData->video->thumbnail->{$tS}->width = $thumb_width;
$metaData->video->thumbnail->{$tS}->height = $thumb_height;
}
/* Schedule for transcoding */
$transcodeSizes = array(360);
$metaData->transcodeStatus = 'WAITING';
$metaData->transcodeProgress = 0;
foreach ($transcodeSizes as $tS) {
$transcodeFile = $cachePath . DIRECTORY_SEPARATOR . uniqid("ft_") . ".webm";
list($width, $height) = scaleVideo($media->getFrameWidth(), $media->getFrameHeight(), $tS);
$metaData->video->transcode->{$tS}->file = basename($transcodeFile);
$metaData->video->transcode->{$tS}->width = $width;
$metaData->video->transcode->{$tS}->height = $height;
}
}
/****************************************************
* AUDIO
****************************************************/
if ($media->hasAudio()) {
$metaData->audio->codec = $media->getAudioCodec();
$metaData->audio->bitrate = $media->getAudioBitRate();
$metaData->audio->samplerate = $media->getAudioSampleRate();
$metaData->audio->duration = $media->getDuration();
$metaData->transcodeStatus = 'WAITING';
$metaData->transcodeProgress = 0;
$transcodeFile = $cachePath . DIRECTORY_SEPARATOR . uniqid("ft_") . ".ogg";
$metaData->audio->transcode->file = basename($transcodeFile);
}
} else {
/* No media? */
}
break;
case "image/jpeg":
case "image/png":
case "image/gif":
case "image/bmp":
list($width, $height) = getimagesize($file);
$metaData->image->width = $width;
$metaData->image->height = $height;
$thumbFile = $cachePath . DIRECTORY_SEPARATOR . uniqid("ft_") . ".png";
list($thumb_width, $thumb_height) = generateThumbnail($file, $thumbFile, 360);
$metaData->image->thumbnail->{360}->file = basename($thumbFile);
$metaData->image->thumbnail->{360}->width = $thumb_width;
$metaData->image->thumbnail->{360}->height = $thumb_height;
break;
default:
/* no idea about this file, let it go... */
}
}
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", $frame->getHeight());
}
echo "\n--------------------\n\n";
}
if (php_sapi_name() != 'cli') {
echo '</pre>';
}
/* FUNCTIONS */
function print_class_methods($class)
printf("<tr><td>get bit rate</td><td>%d<br/></td></tr>", $mov->getBitRate());
printf("<tr><td>has audio</td><td>%s<br/></td></tr>", $mov->hasAudio() == 0 ? 'No' : 'Yes');
if ($mov->hasAudio()) {
printf("<tr><td>get audio stream id</td><td>%s<br/></td></tr>", $mov->getAudioStreamId());
printf("<tr><td>get audio codec</td><td>%s<br/></td></tr>", $mov->getAudioCodec());
printf("<tr><td>get audio bit rate</td><td>%d<br/></td></tr>", $mov->getAudioBitRate());
printf("<tr><td>get audio sample rate</td><td>%d<br/></td></tr>", $mov->getAudioSampleRate());
printf("<tr><td>get audio channels</td><td>%s<br/></td></tr>", $mov->getAudioChannels());
}
printf("<tr><td>has video</td><td>%s<br/></td></tr>", $mov->hasVideo() == 0 ? 'No' : 'Yes');
if ($mov->hasVideo()) {
printf("<tr><td>frame height</td><td>%d pixels<br/></td></tr>", $mov->getFrameHeight());
printf("<tr><td>frame width</td><td>%d pixels<br/></td></tr>", $mov->getFrameWidth());
printf("<tr><td>get video stream id</td><td>%s<br/></td></tr>", $mov->getVideoStreamId());
printf("<tr><td>get video codec</td><td>%s<br/></td></tr>", $mov->getVideoCodec());
printf("<tr><td>get video bit rate</td><td>%d<br/></td></tr>", $mov->getVideoBitRate());
printf("<tr><td>get pixel format</td><td>%s<br/></td></tr>", $mov->getPixelFormat());
printf("<tr><td>get pixel aspect ratio</td><td>%s<br/></td></tr>", $mov->getPixelAspectRatio());
printf("<tr><td>get frame</td><td>%s<br/></td></tr>", is_object($mov->getFrame(10)) ? 'true' : 'false');
printf("<tr><td>get frame number</td><td>%d<br/></td></tr>", $mov->getFrameNumber());
$thumbpath = "{$i}.png";
if (make_test_thumbnail(rand(1, 100), $mov->getFilename(), $thumbpath)) {
printf('<tr><td>Random Thumbnail</td><td><img alt="Test Image" src="%s"/></td></tr>', $thumbpath);
}
}
echo "</table>";
echo "<p/><p/>";
$i++;
}
echo '</div></body></html>';
if (php_sapi_name() == 'cli') {