diff options
Diffstat (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_movie.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_movie.php | 473 |
1 files changed, 473 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_movie.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_movie.php new file mode 100644 index 0000000..a0a2219 --- /dev/null +++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/ffmpeg_movie.php @@ -0,0 +1,473 @@ +<?php + + /** + * This is a pure php emulation of the PHP module FFmpeg-PHP. + * NOTE: Please note whenever possible you should use ffmpeg-php as it is much more efficient than this pure PHP emulation. + * @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. + * @uses php-reader + * - @link http://code.google.com/p/php-reader/ + * - @author Sven Vollbehr <svollbehr@gmail.com> + * - @license http://code.google.com/p/php-reader/wiki/License New BSD License + * @see ffmpeg-php, + * - @link http://ffmpeg-php.sourceforge.net/ + * - @author Todd Kirby. + * - all phpdoc documentation is lifted directly from the ffmpeg-php docs + */ + + if(!defined('DS')) + { + define('DS', DIRECTORY_SEPARATOR); + } + + class ffmpeg_movie + { + + private $_frame_index = 1; + private $_toolkit = null; + private $_media_data = null; + private $_php_reader = 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 $persistent (not used in this class - but exists to emulate the ffmpeg-php module) + * @param string $tmp_directory The temp directory to which to work from. (This is only required by this class + * and not by ffmpeg-php so some minor hacking of your scripts may need to be done). (remember the trailing slash) + */ + function __construct($path_to_media, $persistent=false, $tmp_directory='/tmp/') + { +// store the media path + $this->_path_to_media = $path_to_media; + $this->_tmp_directory = $tmp_directory; +// init PHPVideoToolkit class + require_once dirname(dirname(dirname(__FILE__))).DS.'phpvideotoolkit.php5.php'; + $this->_toolkit = new PHPVideoToolkit($tmp_directory); + $this->_toolkit->on_error_die = false; +// set the input + $this->_toolkit->setInputFile($path_to_media); + $this->_media_data = $this->_toolkit->getFileInfo(); +// print_r($this->_media_data); + } + + /** + * Access and returns the id3 information using getID3. + * @access private + * @return boolean true if the information was able to be retrieved, false if not + */ + private function _getPHPReader() + { + if($this->_php_reader === null) + { + $this->_php_reader = -1; + $php_reader = dirname(__FILE__).DS.'php-reader'.DS.'src'.DS.'ID3v1.php'; + if(is_file($php_reader)) + { + require_once $php_reader; + try + { + $this->_php_reader = new ID3v1($this->_path_to_media); + } + catch (Exception $e) + { + return false; + } + return true; + } + } + return $this->_php_reader !== -1; + } + + /** + * Return the duration of a movie or audio file in seconds. + * @access public + * @return integer + */ + public function getDuration() + { + 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); + } + + /** + * Makes checks and returns the id3 element value. + * @access private + * @return mixed string | -1 + */ + private function _getPHPReaderElement($element) + { + if($this->hasAudio()) + { + if($this->_getPHPReader() && isset($this->_php_reader->{$element})) + { + return $this->_php_reader->{$element}; + } + } + return -1; + } + + /** + * Return the comment field from the movie or audio file. + * Returns -1 on failure. + * @access public + * @return mixed array | -1 + */ + public function getComment() + { + return $this->_getPHPReaderElement('comment'); + } + + /** + * Return the title field from the movie or audio file. + * Returns -1 on failure. + * @access public + * @return string + */ + public function getTitle() + { + return $this->_getPHPReaderElement('title'); + } + + /** + * Return the copyright field from the movie or audio file. + * @access public + * @return string + */ + public function getCopyright() + { + return $this->_getPHPReaderElement('copyright'); + } + + /** + * Return the author field from the movie or the artist ID3 field from an mp3 file. + * @uses ffmpeg_movie::getArtist(); + * @access public + * @return string + */ + public function getAuthor() + { + return $this->getArtist(); + } + + /** + * Return the artist ID3 field from an mp3 file. + * @access public + * @return string + */ + public function getArtist() + { + return $this->_getPHPReaderElement('artist'); + } + + /** + * Return the album ID3 field from an mp3 file. + * @access public + * @return string + */ + public function getAlbum() + { + return $this->_getPHPReaderElement('album'); + } + + /** + * Return the genre ID3 field from an mp3 file. + * @access public + * @return string + */ + public function getGenre() + { + return $this->_getPHPReaderElement('genre'); + } + + /** + * Return the track ID3 field from an mp3 file. + * @access public + * @return integer + */ + public function getTrackNumber() + { + return $this->_getPHPReaderElement('track'); + } + + /** + * Return the year ID3 field from an mp3 file. + * @access public + * @return integer + */ + public function getYear() + { + return $this->_getPHPReaderElement('year'); + } + + /** + * 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() ? $this->_media_data['video']['pixel_format'] : -1; + } + + /** + * Return the pixel aspect ratio of the movie + * @access public + * @return integer + */ + public function getPixelAspectRatio() + { + return -1; + } + + /** + * Return the bit rate of the movie or audio file in bits per second. + * @access public + * @return integer + */ + public function getBitRate() + { + return isset($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() ? $this->_media_data['audio']['codec'] : -1; + } + + /** + * Return the number of audio channels in this movie as an integer. + * @access public + * @return integer + */ + public function getAudioChannels() + { + if($this->hasAudio()) + { + if($this->_getPHPReader() && isset($this->_getid3_data['audio']) && isset($this->_getid3_data['audio']['channels'])) + { + return $this->_getid3_data['audio']['channels']; + } + return 1; + } + return 0; + } + + /** + * Return boolean value indicating whether the movie has an audio stream. + * @access public + * @return boolean + */ + public function hasAudio() + { + return isset($this->_media_data['audio']); + } + + /** + * Return boolean value indicating whether the movie has a video stream. + * @access public + * @return boolean + */ + public function hasVideo() + { + return isset($this->_media_data['video']); + } + + /** + * Returns a frame from the movie as an ffmpeg_frame object. + * Returns false if the frame was not found. + * @access public + * @return mixed boolean | ffmpeg_frame + */ + public function getFrame($frame_number=false) + { + if(!$this->hasVideo()) + { + return false; + } + $this->_toolkit->reset(true); + require_once dirname(__FILE__).DS.'ffmpeg_frame.php'; + if(!$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 + $tmp_name = $this->_toolkit->unique().'-%index.jpg'; +// extract the frame +// print_r(array($frame_number, $frame_rate, '%ft')); + $this->_toolkit->extractFrame($frame_number, $frame_rate, '%ft'); + $this->_toolkit->setOutput($this->_tmp_directory, $tmp_name, PHPVideoToolkit::OVERWRITE_EXISTING); + $result = $this->_toolkit->execute(false, true); +// check the image has been outputted +// print_r(array($this->_toolkit->getLastError(), $this->_toolkit->getLastCommand())); +// print_r(array($this->_toolkit->getLastCommand())); +// print_r(array($tmp_name, $this->_toolkit->getLastOutput())); + if($result !== PHPVideoToolkit::RESULT_OK) + { + return false; + } +// load the frame into gd + $temp_output = array_shift(array_flip($this->_toolkit->getLastOutput())); + $gd_img = imagecreatefromjpeg($temp_output); +// delete the temp image + unlink($temp_output); +// return the ffmpeg frame instance + $ffmpeg_frame_time = $this->_toolkit->formatTimecode($frame_number, '%ft', '%hh:%mm:%ss.%ms', $frame_rate); + return new ffmpeg_frame($gd_img, $ffmpeg_frame_time); + } + + /** + * Note; this doesn't behave exactly as ffmpeg_movie, this will get the first frame + * of the next second in the movie. + * Returns the next key frame from the movie as an ffmpeg_frame object. + * Returns false if the frame was not found. + * @uses ffmpeg_movie::getFrame(); + * @access public + * @return mixed boolean | ffmpeg_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; + } + + } +
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