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<?php
// $Id$
/**
* @file
* Provide some api for use ffmpeg. Simplify video nodes creation.
*
* @author Fabio Varesano <fvaresano at yahoo dot it>
*/
/**
* Implementation of hook_help().
*/
function video_ffmpeg_helper_help($section) {
switch ($section) {
case 'admin/modules#description':
return t('Enable thumbnails support for video module.');
}
}
/**
* Implementation of hook_menu()
*/
function video_ffmpeg_helper_menu($may_cache) {
$items = array();
if ($may_cache) {
$items[] = array(
'path' => 'admin/content/video/ffmpeg_helper',
'title' => t('Video ffmpeg Helper'),
'description' => t('Administer video_ffmpeg_helper module settings'),
'callback' => 'drupal_get_form',
'callback arguments' => array('video_ffmpeg_helper_admin_settings'),
'access' => user_access('administer site configuration'),
'type' => MENU_NORMAL_ITEM,
);
}
return $items;
}
/**
* Validation for settings form
*/
function video_ffmpeg_helper_admin_settings_validate($form_id, &$form_values, &$form) {
if ($form_values['video_ffmpeg_helper_auto_thumbnail']) {
if (function_exists('is_executable')) {
$test = 'is_executable';
} else {
$test = 'file_exists';
}
if (!$test($form_values['video_ffmpeg_helper_ffmpeg_path'])) {
form_set_error('video_image_ffmpeg_path', t('Set correct path for thumbnailer'));
}
if (!is_numeric($form_values['video_ffmpeg_helper_auto_thumbnail_seek'])) {
form_set_error('video_ffmpeg_helper_auto_thumbnail_seek', t('Seek time must be an integer'));
}
$options = $form_values['video_ffmpeg_helper_thumbnailer_options'];
if (!strstr($options, '%videofile') || !strstr($options, '%thumbfile')) {
form_set_error('video_ffmpeg_helper_thumbnailer_options', t('Thumbnail options must contain mandatory arguments %videofile and %thumbfile'));
}
}
}
/**
* Settings form
*/
function video_ffmpeg_helper_admin_settings() {
// let's execute after video_image
if (module_exists('video_image')) {
if (variable_get('video_ffmpeg_helper_auto_thumbnail', 0)) {
$upload_weight = db_result(db_query("SELECT weight FROM {system} WHERE name='video_image'"));
db_query("UPDATE {system} SET weight=".($upload_weight+1)." WHERE name='video_ffmpeg_helper'");
}
}
$form['video_ffmpeg_helper_ffmpeg_path'] = array(
'#type' => 'textfield',
'#title' => t('Ffmpeg executable path'),
'#description' => t('Set the full path to the ffmpeg executable here.'),
'#default_value' => variable_get('video_ffmpeg_helper_ffmpeg_path', '/usr/bin/ffmpeg'),
);
$form['autothumb'] = array(
'#type' => 'fieldset',
'#title' => t('Automatic video thumbnailing'),
'#collapsible' => TRUE,
'#collapsed' => TRUE
);
$form['autothumb']['video_ffmpeg_helper_auto_thumbnail'] = array(
'#type' => 'checkbox',
'#title' => t('Auto thumbnail for videos'),
'#description' => t('If set up correctly, this will auto-generate a thumbnail for each video created.'),
'#default_value' => variable_get('video_ffmpeg_helper_auto_thumbnail', false),
);
$form['autothumb']['video_ffmpeg_helper_auto_thumbnail_only'] = array(
'#type' => 'checkbox',
'#title' => t('Use auto-thumbnailer exclusively for video images'),
'#description' => t('If checked, this will disable the file upload box for the user-supplied thumbnail. Only check this if you have checked to be sure that auto-thumbnailing works. Auto thumbnail must be selected for this to be enabled.'),
'#default_value' => variable_get('video_ffmpeg_helper_auto_thumbnail_only', false),
'#disabled' => !variable_get('video_ffmpeg_helper_auto_thumbnail', false),
);
$form['autothumb']['video_ffmpeg_helper_thumbnailer_options'] = array(
'#type' => 'textfield',
'#title' => t('Video thumbnailer options'),
'#description' => t('Provide the options for the thumbnailer. Available argument values are: ').'<ol><li>'.t('%videofile (the video file to thumbnail)').'<li>'.t('%thumbfile (a newly created temporary file to overwrite with the thumbnail)').'<li>'.t('%seek (seconds to seek into video before extracting image).').'</ol>'.t('Only the first two are mandatory. For example, older versions of ffmpeg should use something like: !old While newer versions should use something like: !new', array('!old' => "<div>-i %videofile -y -an -f mjpeg -ss %seek -t 0.001 %thumbfile</div>", '!new' => '<div>-i %videofile -an -y -f mjpeg -ss %seek -vframes 1 %thumbfile</div>')),
'#default_value' => variable_get('video_ffmpeg_helper_thumbnailer_options', '-i %videofile -an -y -f mjpeg -ss %seek -vframes 1 %thumbfile'),
);
$form['autothumb']['video_ffmpeg_helper_auto_thumbnail_seek'] = array(
'#type' => 'textfield',
'#title' => t('Video seek offset for thumbnail'),
'#description' => t('Time in seconds to seek into video before extracting the thumbnail'),
'#default_value' => variable_get('video_ffmpeg_helper_auto_thumbnail_seek', 2),
);
$form['autothumb']['video_ffmpeg_helper_auto_thumbnail_debug'] = array(
'#type' => 'checkbox',
'#title' => t('Debug auto-thumbnail process'),
'#default_value' => variable_get('video_ffmpeg_helper_auto_thumbnail_debug', false),
);
return system_settings_form($form);
}
/**
* Implementation of hook_form_alter()
*/
function video_ffmpeg_helper_form_alter($form_id, &$form) {
//print_r($form);
if($form_id == 'video_node_form') {
if (function_exists('_image_check_settings')) {
_image_check_settings();
$form['#attributes'] = array("enctype" => "multipart/form-data");
if (variable_get('video_ffmpeg_helper_auto_thumbnail_only', false)) {
// delete the video image parts
$form['image'] = NULL;
}
}
}
}
/* Generates a thumbnail from the video file
*
* @param $node
* object with node information
*
* @return
* a drupal file object
*/
function _video_ffmpeg_helper_auto_thumbnail(&$node) {
if(empty($_SESSION['video_upload_file']) ||
!$_SESSION['video_upload_file']->newfile ||
$node->iid || $_SESSION['video_upload_file']->iid ||
$_SESSION['video_upload_file']->thumbnailed) {
if (variable_get('video_image_auto_thumbnail_debug', false)) {
if (empty($_SESSION['video_upload_file']))
drupal_set_message(t('no video has been uploaded: make sure that video_image weight is greater than video_upload weight; make sure that the video file is not too large to be uploaded.'));
}
return null;
}
$debug = variable_get('video_image_auto_thumbnail_debug', false);
$videofile = escapeshellarg($_SESSION['video_upload_file']->filepath);
$thumbfile = tempnam(file_directory_temp(), 'tnail-thumb');
$seek = variable_get('video_image_auto_thumbnail_seek', 2);
$tnail = variable_get('video_image_thumbnailer_path', '/usr/bin/ffmpeg');
$options = preg_replace(array('/%videofile/', '/%thumbfile/', '/%seek/'), array($videofile, $thumbfile, $seek), variable_get('video_image_thumbnailer_options', '-i %videofile -an -y -f mjpeg -ss %seek -vframes 1 %thumbfile'));
$command = "$tnail $options";
ob_start();
passthru($command." 2>&1", $tnail_return);
$tnail_output = ob_get_contents();
ob_end_clean();
if ($debug) {
drupal_set_message(t('Thumbnailer command: ').$command);
drupal_set_message(t('Thumbnailer output: ')."<pre>\n$tnail_output\n</pre>");
}
if (!file_exists($thumbfile)) {
drupal_set_message(t('video_image_auto_thumbnail: file %file does not exist', array('%file' => $thumbfile)), 'error');
}
$file = array(
'filename' => $_SESSION['video_upload_file']->filename . ".video-thumb.jpg",
'filemime' => 'image/jpeg',
'filesize' => filesize($thumbfile),
'filepath' => $thumbfile,
'nid' => $node->nid,
);
$_SESSION['video_upload_file']->thumbnailed = TRUE;
if ($debug) {
if ($tnail_return) {
drupal_set_message(t('Failed to thumbnail video'));
} else {
drupal_set_message(t('Successfully thumbnailed video'));
}
}
return (object)$file;
}
|
