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AbetoArmarios_Web/Source/gallery2/modules/ffmpeg/classes/FfmpegToolkitHelper.class

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<?php
/*
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2007 Bharat Mediratta
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
* A helper class for FfmpegToolkit
* @package Ffmpeg
* @subpackage Classes
* @author Bharat Mediratta <bharat@menalto.com>
* @version $Revision: 15513 $
* @static
*/
class FfmpegToolkitHelper {
/**
* Figure out what operations and properties are supported by the
* FfmpegToolkit and return them.
*
* @return object GalleryStatus a status code
* array('operations' => ..., 'properties' => ...)
*/
function getOperationsAndProperties() {
global $gallery;
list ($ret, $ffmpegPath) = GalleryCoreApi::getPluginParameter('module', 'ffmpeg', 'path');
if ($ret) {
return array($ret, null);
}
if (empty($ffmpegPath)) {
return array(GalleryCoreApi::error(ERROR_MISSING_VALUE), null);
}
list ($ret, $tests, $mimeTypes, $supportsOffset) =
FfmpegToolkitHelper::testBinary($ffmpegPath);
if ($ret) {
return array($ret, null);
}
/* -------------------- Operations -------------------- */
/* extract */
$operations['convert-to-image/jpeg']['params'] = array();
$operations['convert-to-image/jpeg']['description'] = $gallery->i18n('Convert to a JPEG');
$operations['convert-to-image/jpeg']['mimeTypes'] = $mimeTypes;
$operations['convert-to-image/jpeg']['outputMimeType'] = 'image/jpeg';
if ($supportsOffset) {
$operations['select-offset'] = array(
'params' => array(array('type' => 'float',
'description' => $gallery->i18n('offset in seconds'))),
'description' => $gallery->i18n('Select time offset in movie file'),
'mimeTypes' => $mimeTypes,
'outputMimeType' => null);
}
/* -------------------- Properties -------------------- */
/* Dimensions */
$properties['dimensions']['type'] = 'int,int';
$properties['dimensions']['description'] =
$gallery->i18n('Get the width and height of the movie');
$properties['dimensions']['mimeTypes'] = $mimeTypes;
$properties['dimensions-and-duration']['type'] = 'int,int,float';
$properties['dimensions-and-duration']['description'] =
$gallery->i18n('Get the width, height and duration of the movie');
$properties['dimensions-and-duration']['mimeTypes'] = $mimeTypes;
return array(null, array('operations' => $operations, 'properties' => $properties));
}
/**
* Test if the given path has a working Ffmpeg binary.
*
* This is done by calling the binary with the -formats flag and
* making sure it runs properly.
*
* @param string $ffmpegPath path to the Ffmpeg we are testing
* @return array object GalleryStatus general status of tests
* array of array ('name' => string: the name of the binary,
* 'success' => boolean: test successful?
* 'results' => string: the ffmpeg output)
* array hash map of mime types
* boolean true if ffmpeg supports -ss time_offset
*/
function testBinary($ffmpegPath) {
global $gallery;
$platform =& $gallery->getPlatform();
/*
* If the path is not restricted by open_basedir, then verify that it's legal.
* Else just hope that it's valid and use it.
*/
if (!$platform->isRestrictedByOpenBaseDir($ffmpegPath)) {
if (!$platform->file_exists($ffmpegPath) || !$platform->is_file($ffmpegPath)) {
return array(GalleryCoreApi::error(ERROR_BAD_PATH), null, null, null);
}
}
/* We only care about video for now */
$relevantTypes = array('mpeg' => 'mpeg', 'asf' => 'asf', 'avi' => 'avi',
'mov' => 'mov', 'wmv1' => 'wmv', 'flv' => 'flv', 'mp4' => 'mp4');
list ($ignored, $results) = $platform->exec(array(array($ffmpegPath, '-formats')));
$mimeTypes = array();
$success = false;
$i = 0;
while ($i < sizeof($results)) {
$resultLine = $results[$i++];
/*
* ffmpeg 0.4.6 says:
* File formats:
* Decoding: mpeg mpegts pgm pgmyuv ppm .Y.U.V pgmpipe pgmyuvpipe
* ppmpipe mp3 ac3 m4v mpegvideo mjpeg s16le s16be u16le u16be s8 u8 mulaw alaw
* rawvideo rm asf avi wav swf au mov jpeg dv ffm video_grab_device
* audio_device rtsp redir sdp rtp
* [multiple lines]
* Codecs:
* ....
*
* ffmpeg 0.4.7 says:
* Input audio/video file formats: mpeg mpegts image ...
* [all on one line]
*
* ffmpeg 0.4.8 says:
* File formats:
* E 3gp
* D 4xm
* D RoQ
* DE ac3
* DE ala
* DE asf
* E asf
* ...
* Image formats:
* D pnm
* E pbm
* E pgm
* ...
* Codecs:
* D V 4xm
* D V D 8bps
* EA ac3
* DEA adpcm_4xm
*/
if (preg_match('|Input audio/video file formats: (.*)$|', $resultLine, $regs)) {
foreach (explode(' ', $regs[1]) as $type) {
if (isset($relevantTypes[$type])) {
list ($ret, $mime) =
GalleryCoreApi::convertExtensionToMime($relevantTypes[$type]);
if ($ret) {
return array($ret, null, null, null);
}
$mimeTypes[$mime] = 1;
}
}
$success = true;
} else if (preg_match('/ Decod(?:ing|ers): (.*)$/', $resultLine, $regs)) {
do {
foreach (explode(' ', $regs[1]) as $type) {
if (isset($relevantTypes[$type])) {
list ($ret, $mime) = GalleryCoreApi::convertExtensionToMime(
$relevantTypes[$type]);
if ($ret) {
return array($ret, null, null, null);
}
$mimeTypes[$mime] = 1;
}
}
$resultLine = $results[$i++];
} while ($i < sizeof($results) && !preg_match('|Codecs:|', $resultLine));
$success = true;
} else if (preg_match('/(File formats|Codecs):/', $resultLine, $regs)) {
$resultLine = $results[$i++];
if (preg_match('/^ \w+: /', $resultLine)) {
/* We have found 0.4.6 format */
continue;
}
do {
list ($capabilities, $types) =
preg_split('/\s+/', $resultLine, -1, PREG_SPLIT_NO_EMPTY);
foreach (explode(',', $types) as $type) {
if (isset($relevantTypes[$type])) {
if (preg_match('|D|', $capabilities)) {
list ($ret, $mime) = GalleryCoreApi::convertExtensionToMime(
$relevantTypes[$type]);
if ($ret) {
return array($ret, null, null, null);
}
$mimeTypes[$mime] = 1;
}
}
}
$resultLine = $results[$i++];
} while (!empty($resultLine));
$success = true;
}
}
$tests[] = array('name' => 'ffmpeg',
'success' => $success,
'results' => $results);
/* Test if this ffmpeg supports -ss flag.. */
$supportsOffset = false;
list ($ok, $flags) = $platform->exec(array(array($ffmpegPath, '-h')));
foreach ($flags as $line) {
if (!strncmp($line, '-ss ', 4)) {
$supportsOffset = true;
break;
}
}
return array(null, $tests, array_keys($mimeTypes), $supportsOffset);
}
}
?>