diff options
Diffstat (limited to 'libraries/phpvideotoolkit/adapters/toolkit/video.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/toolkit/video.php | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/toolkit/video.php b/libraries/phpvideotoolkit/adapters/toolkit/video.php new file mode 100644 index 0000000..759d884 --- /dev/null +++ b/libraries/phpvideotoolkit/adapters/toolkit/video.php @@ -0,0 +1,387 @@ +<?php + + /* SVN FILE: $Id$ */ + /** + * @author Oliver Lillie (aka buggedcom) <publicmail@buggedcom.co.uk> + * @package PHPVideoToolkit + * @license BSD + * @copyright Copyright (c) 2008 Oliver Lillie <http://www.buggedcom.co.uk> + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software + * is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE + * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + if(!defined('DS')) + { + define('DS', DIRECTORY_SEPARATOR); + } + + /** + * This is similar in terms to FFmpeg-PHP's ffmpeg_movie, however it is just for video's and not just audio. + */ + class PHPVideoToolkit_Video + { + private $_frame_index = 1; + private $_toolkit = null; + private $_media_data = null; + private $_path_to_media = null; + private $_tmp_directory = null; + + /** + * Class Constructor + * @param string $path_to_media The path to the media file you want to use. + * @param string $tmp_directory The temp directory to which to work from. (remember the trailing slash), default set by PHPVIDEOTOOLKIT_TEMP_DIRECTORY + */ + function __construct($path_to_media, $tmp_directory=PHPVIDEOTOOLKIT_TEMP_DIRECTORY) + { +// init PHPVideoToolkit class + require_once dirname(dirname(dirname(__FILE__))).DS.'phpvideotoolkit.php5.php'; +// store the media path + $this->_path_to_media = $path_to_media; + $this->_tmp_directory = $tmp_directory; +// if the path is infact a class of PHPVideoToolkit then just copy the class + if(get_class($path_to_media) === false) + { + $this->_toolkit = $path_to_media; + } + else + { +// create the toolkit item + $this->_toolkit = new PHPVideoToolkit($tmp_directory); + $this->_toolkit->on_error_die = false; +// set the input + $this->_toolkit->setInputFile($path_to_media); + } + } + + /** + * Destructs any internal processes. + * @access private + */ + function __destruct() + { +// loop through the temp files to remove first as they have to be removed before the dir can be removed + if(!empty($this->_unlink_files)) + { + foreach ($this->_unlink_files as $key=>$file) + { + if(is_file($file)) + { + @unlink($file); + } + } + $this->_unlink_files = array(); + } +// loop through the dirs to remove + if(!empty($this->_unlink_dirs)) + { + foreach ($this->_unlink_dirs as $key=>$dir) + { + if(is_dir($dir)) + { + @rmdir($dir); + } + } + $this->_unlink_dirs = array(); + } + } + + /** + * Loads the meta data for the media file + * @access private + */ + private function _getMediaData() + { + if($this->_media_data === null) + { + $this->_media_data = $this->_toolkit->getFileInfo(); + } + } + + /** + * Return the duration of a movie or audio file in seconds. + * @access public + * @return integer + */ + public function getDuration() + { + $this->_getMediaData(); + return $this->_media_data['duration']['seconds']; + } + + /** + * Return the number of frames in a movie or audio file. + * @access public + * @return integer + */ + public function getFrameCount() + { + return $this->hasVideo() ? $this->_media_data['video']['frame_count'] : -1; + } + + /** + * Return the frame rate of a movie in fps. + * @access public + * @return integer + */ + public function getFrameRate() + { + return $this->hasVideo() ? $this->_media_data['video']['frame_rate'] : -1; + } + + /** + * Return the path and name of the movie file or audio file. + * @access public + * @return string + */ + public function getFilename() + { + return basename($this->_path_to_media); + } + + /** + * Return the height of the movie in pixels. + * @access public + * @return integer + */ + public function getFrameHeight() + { + return $this->hasVideo() && isset($this->_media_data['video']['dimensions']) ? $this->_media_data['video']['dimensions']['height'] : -1; + } + + /** + * Return the width of the movie in pixels. + * @access public + * @return integer + */ + public function getFrameWidth() + { + return $this->hasVideo() && isset($this->_media_data['video']['dimensions']) ? $this->_media_data['video']['dimensions']['width'] : -1; + } + + /** + * Return the pixel format of the movie. + * @access public + * @return mixed string | -1 + */ + public function getPixelFormat() + { + return $this->hasVideo() ? $this->_media_data['video']['pixel_format'] : -1; + } + + /** + * Return the pixel aspect ratio of the movie + * @access public + * @return integer + */ + public function getPixelAspectRatio() + { + return -1; + } + + /** + * Return the bit rate of the movie or audio file in bits per second. + * @access public + * @return integer + */ + public function getBitRate() + { + $this->_getMediaData(); + return isset($this->_media_data['bitrate']) ? $this->_media_data['bitrate'] : -1; + } + + /** + * Return the bit rate of the video in bits per second. + * NOTE: This only works for files with constant bit rate. + * @access public + * @return integer + */ + public function getVideoBitRate() + { + return $this->hasVideo() && isset($this->_media_data['video']['bitrate']) ? $this->_media_data['video']['bitrate'] : -1; + } + + /** + * Return the audio bit rate of the media file in bits per second. + * @access public + * @return integer + */ + public function getAudioBitRate() + { + return $this->hasAudio() && isset($this->_media_data['audio']['bitrate']) ? $this->_media_data['audio']['bitrate'] : -1; + } + + /** + * Return the audio sample rate of the media file in bits per second. + * @access public + * @return integer + */ + public function getAudioSampleRate() + { + return $this->hasAudio() && isset($this->_media_data['audio']['sample_rate']) ? $this->_media_data['audio']['sample_rate'] : -1; + } + + /** + * Return the name of the video codec used to encode this movie as a string. + * @access public + * @param boolean $return_all If true it will return all audio codecs found. + * @return mixed string | array + */ + public function getVideoCodec($return_all=false) + { + return $this->hasVideo() ? $this->_media_data['video']['codec'] : -1; + } + + /** + * Return the name of the audio codec used to encode this movie as a string. + * @access public + * @param boolean $return_all If true it will return all audio codecs found. + * @return mixed string | array + */ + public function getAudioCodec() + { + return $this->hasAudio() ? $this->_media_data['audio']['codec'] : -1; + } + + /** + * Return the number of audio channels in this movie as an integer. + * @access public + * @return integer + */ + public function getAudioChannels() + { + return $this->hasAudio(); + } + + /** + * Return boolean value indicating whether the movie has an audio stream. + * @access public + * @return boolean + */ + public function hasAudio() + { + $this->_getMediaData(); + return isset($this->_media_data['audio']); + } + + /** + * Return boolean value indicating whether the movie has a video stream. + * @access public + * @return boolean + */ + public function hasVideo() + { + $this->_getMediaData(); + return isset($this->_media_data['video']); + } + + public function convert() + { + } + + /** + * This will resize and return an new instance of PHPVideoToolkit_Video. + * @access public + * @return PHPVideoToolkit_Video + */ + public function resize($width, $height=null, $multi_pass_encode=false) + { +// set the instance dimensions + $this->_toolkit->setVideoDimensions($width, $height); +// create a new video toolkit object to return + return new PHPVideoToolkit_Video($this->_toolkit, $this->_tmp_directory); + } + + public function watermark() + { + } + + public function getAudio() + { + } + + public function save($filename, $multi_pass_encode=false, $overwrite_mode=PHPVideoToolkit::OVERWRITE_FAIL) + { + $output_directory, $output_name, + $path_info = pathinfo($filename); +// set the output + $this->_toolkit->setOutput($path_info['dirname'], $path_parts['basename'], $overwrite_mode); + return $this->_toolkit->execute($multi_pass_encode, false); + } + + /** + * Returns a frame from the movie as an PHPVideoToolkit_Frame object. + * Returns false if the frame was not found. + * @access public + * @return mixed boolean | PHPVideoToolkit_Frame + */ + public function getFrame($frame_number=false) + { + if(!$this->hasVideo()) + { + return false; + } + $this->_toolkit->reset(true); + require_once dirname(__FILE__).DS.'frame.php'; + if(!$frame_number) + { + $frame_number = $this->_frame_index; + $this->_frame_index += 1; + } + else + { + $this->_frame_index = $frame_number; + } +// check the frame required exists in the video + if($frame_number > $this->getFrameCount()) + { + return false; + } +// work out the exact frame to take + $frame_rate = $this->getFrameRate(); +// generate a unique name + $this->_toolkit->setOutput($this->_tmp_directory, $this->_toolkit->unique().'-%timecode.jpg', PHPVideoToolkit::OVERWRITE_EXISTING); +// extract the frame and check the extract is ok + if(!($result = $this->_toolkit->extractFrame($frame_number, $frame_rate, '%ft')) + { + return $result; + } +// return the PHPVideoToolkit_Frame instance + return new PHPVideoToolkit_Frame($this->_toolkit); + } + + /** + * Returns the next key frame from the movie as an PHPVideoToolkit_Frame object. + * Returns false if the frame was not found. + * @uses PHPVideoToolkit_Video::getFrame(); + * @access public + * @return mixed boolean | PHPVideoToolkit_Frame + */ + public function getNextKeyFrame() + { + $frame_rate = $this->getFrameRate(); +// work out the next frame + $current_second = floor($frame_number/$frame_rate); + $excess = $frame_number-($seconds * $frame_rate); + $frames_to_next = $frame_rate-$excess; + $this->_frame_index += $frames_to_next; +// get the frame + return $this->getFrame(); + } + + /** + * Return the current frame index. + * @access public + * @return integer + */ + public function getFrameNumber() + { + return $this->_frame_index; + } + } |