/**
* Saves the animated gif.
*
* @access public
* @author Oliver Lillie
* @param string $save_path
* @param float $frame_delay The delay of each frame.
* @return Image
*/
public function save($save_path, $frame_delay = 0.1)
{
parent::save($save_path, $frame_delay);
// build the gif creator process
$gc = new \GifCreator\GifCreator();
// add in all the frames
$durations = array();
$frame_duration = $frame_delay * 100;
foreach ($this->_frames as $path) {
array_push($durations, $frame_duration);
}
$gc->create($this->_frames, $durations, $this->_loop_count === AnimatedGif::UNLIMITED_LOOPS ? '0' : $this->_loop_count + 1);
$gif_data = $gc->getGif();
// check for errors or put the data into the file.
if (empty($gif_data) === true || file_put_contents($save_path, $gif_data) === false) {
throw new FfmpegProcessPostProcessException('AnimatedGif save using `php` "' . $save_path . '" failed.');
}
return new Image($save_path, $this->_config);
}
/**
* Saves the animated gif.
*
* @access public
* @author Oliver Lillie
* @param string $save_path The path to save the animated gif to.
* @return PHPVideoToolkit\Image Returns a new instance of PHPVideoToolkit\Image with the new animated gif as the src.
* @throws PHPVideoToolkit\AnimatedGifException If an empty gif is generated.
* @throws PHPVideoToolkit\AnimatedGifException If the gif couldn't be saved to the filesystem.
*/
public function save($save_path)
{
$save_path = parent::save($save_path);
// build the gif creator process
require_once dirname(dirname(dirname(__FILE__))) . '/vendor/sybio/gif-creator/src/GifCreator/GifCreator.php';
$gc = new \GifCreator\GifCreator();
// add in all the frames
$durations = array();
$frame_duration = $this->_frame_delay * 100;
foreach ($this->_frames as $path) {
array_push($durations, $frame_duration);
}
$gc->create($this->_frames, $durations, $this->_loop_count === AnimatedGif::UNLIMITED_LOOPS ? '0' : $this->_loop_count + 1);
$gif_data = $gc->getGif();
// check for errors or put the data into the file.
if (empty($gif_data) === true) {
throw new AnimatedGifException('AnimatedGif using `php` generated an empty gif.');
}
if (file_put_contents($save_path, $gif_data) === false) {
throw new AnimatedGifException('AnimatedGif save to filesystem failed using "' . $save_path . '".');
}
return new Image($save_path, $this->_config);
}
/**
* Create.
*
* This method creates the thumbnail from the video.
*
* @param string $videoFile Video file to process
* @param string $thumbnailFile Output gif
* @param int|null $count Number of frames to use
* @param int|null $interval The interval beetween the frames of the gif
* @param int|null $width Width of the gif
* @param int|null $height Height of the gif
* @param int|null $start The start of the video part
* @param int|null $end The end of the video part
*
* @throws VideoException If error during procession or writing.
*/
public function create($videoFile, $thumbnailFile, $count = null, $interval = null, $width = null, $height = null, $start = null, $end = null)
{
$count = $count ?: $this->defaults['count'];
$interval = $interval ?: $this->defaults['interval'];
$width = $width ?: $this->defaults['width'];
$height = $height ?: $this->defaults['height'];
try {
$ffmpeg = FFMpeg::create();
$ffprobe = FFProbe::create();
} catch (\Exception $e) {
throw new VideoException('Cannot start FFMpeg or FFProbe', 0, $e);
}
try {
// Determine the duration of the video
$duration = $ffprobe->format($videoFile)->get('duration');
} catch (\Exception $e) {
throw new VideoException(sprintf('Cannot determine the duration of %s', $videoFile), 0, $e);
}
// If invalid start or end time, assume it is the start and the end
// of the video.
$start = max(0, $start ?: 0);
$end = min($duration, $end ?: $duration);
$delay = (double) ($end - $start) / ($count + 1);
$video = $ffmpeg->open($videoFile);
$hashDir = $this->tmpDir . '/video-gif/' . md5($videoFile . time());
if (!file_exists($hashDir)) {
mkdir($hashDir, 0777, true);
}
$pos = $start;
$frames = array();
$durations = array();
// Grab frames
for ($i = 0; $i < $count; ++$i) {
$pos += $delay;
$video->frame(TimeCode::fromSeconds($pos))->save(sprintf($hashDir . '/tmp-frame%03d.jpg', $i));
Image::open(sprintf($hashDir . '/tmp-frame%03d.jpg', $i))->cropResize($width, $height)->save(sprintf($hashDir . '/frame%03d.jpg', $i));
$frames[] = sprintf($hashDir . '/frame%03d.jpg', $i);
$durations[] = $interval;
}
$gc = new GifCreator();
$gc->create($frames, $durations, 0);
$this->removeDirectory($hashDir);
if (false === @file_put_contents($thumbnailFile, $gc->getGif())) {
throw new VideoException(sprintf('Cannot write %s', $thumbnailFile));
}
}
public function automatic_reduction($file, $image_url)
{
$filetype = $this->getFileType($file);
if ((!empty($this->maximum_picture_size['width']) || !empty($this->maximum_picture_size['height'])) && ($this->width > $this->maximum_picture_size['width'] || $this->height > $this->maximum_picture_size['height'])) {
if ($this->width > $this->height) {
$maximum_picture_size_width = empty($this->maximum_picture_size['width']) ? $this->width * $this->maximum_picture_size['height'] / $this->height : $this->maximum_picture_size['width'];
$new_width = intval($maximum_picture_size_width);
$new_height = intval($this->height * $maximum_picture_size_width / $this->width);
} else {
$maximum_picture_size_height = empty($this->maximum_picture_size['height']) ? $this->height * $this->maximum_picture_size['width'] / $this->width : $this->maximum_picture_size['height'];
$new_width = intval($this->width * $maximum_picture_size_height / $this->height);
$new_height = intval($maximum_picture_size_height);
}
$layer = ImageWorkshop::initFromString($file);
if ($filetype == 'gif' && GifFrameExtractor\GifFrameExtractor::isAnimatedGif($this->temp)) {
$gfe = new GifFrameExtractor\GifFrameExtractor();
$frames = $gfe->extract($this->temp, true);
$retouchedFrames = array();
foreach ($frames as $frame) {
$frameLayer = ImageWorkshop::initFromResourceVar($frame['image']);
$frameLayer->resizeInPixel($new_width, $new_height);
$retouchedFrames[] = $frameLayer->getResult();
}
$gc = new GifCreator\GifCreator();
$gc->create($retouchedFrames, $gfe->getFrameDurations(), 0);
$file = $gc->getGif();
} else {
$layer->resizeInPixel($new_width, $new_height, true);
ob_start();
switch ($filetype) {
case 'jpg':
case 'jpeg':
ImageJpeg($layer->getResult(), null, 75);
break;
case 'png':
imagealphablending($layer->getResult(), false);
imagesavealpha($layer->getResult(), true);
ImagePng($layer->getResult());
break;
case 'gif':
ImageGif($layer->getResult(), null, 75);
break;
}
$file = ob_get_contents();
ob_end_clean();
}
imagedestroy($layer->getResult());
$this->width = $new_width;
$this->height = $new_height;
}
return $file;
}
/**
* Generates the gif file.
* @throws \Exception
*/
private function render_gif()
{
$diff = $this->end_time - $this->start_time;
$now = $this->start_time;
for ($diff; $diff >= 0; $diff -= $this->step) {
$dtF = new DateTime("@{$now}");
$dtT = new DateTime("@{$this->end_time}");
$text = $dtF->diff($dtT)->format('%a D / %h H / %i M / %s S');
$last_frame = false;
if ($diff == 0) {
$last_frame = true;
}
$this->frames[] = $this->render_frame($text, $last_frame);
if ($diff == 0) {
$this->durations[] = -1;
} else {
$this->durations[] = 100 * $this->step;
}
$now += $this->step;
}
$gc = new GifCreator();
$gc->create($this->frames, $this->durations, 0);
$this->gif = $gc->getGif();
}
