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Diffstat (limited to 'plugins/ffmpeg.inc')
| -rw-r--r-- | plugins/ffmpeg.inc | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/plugins/ffmpeg.inc b/plugins/ffmpeg.inc new file mode 100644 index 0000000..e8e0057 --- /dev/null +++ b/plugins/ffmpeg.inc @@ -0,0 +1,275 @@ +<?php +//$Id$ + +/** + * @file + * Provide a api for video conversion and auto thumbnailing using ffmpeg. + * + * @author Heshan Wanigasooriya <heshan at heidisoft.com, heshanmw at gmail dot com> + * TODO: add common settings from video module configurations and extend it from ffmpeg.inc + * since we need to have executable path of ffmpeg to ffmpeg.inc we need to have it + */ + +/** + * Define some constants + */ +defined('VIDEO_RENDERING_PENDING') + or define('VIDEO_RENDERING_PENDING', 1); +defined('VIDEO_RENDERING_ACTIVE') + or define('VIDEO_RENDERING_ACTIVE', 5); +defined('VIDEO_RENDERING_COMPLETE') + or define('VIDEO_RENDERING_COMPLETE', 10); +defined('VIDEO_RENDERING_FAILED') + or define('VIDEO_RENDERING_FAILED', 20); + +// nice value to append at the beginning of the command +defined('VIDEO_RENDERING_NICE') + or define('VIDEO_RENDERING_NICE', 'nice -n 19'); + + +// TODO : add cron API to video module +function ffmpeg_cron() { + global $base_url; + + if(variable_get('video_ffmpeg_helper_auto_cvr_cron', true)) { + exec("php video_scheduler.php $base_url > /dev/null &"); + } +} + + +/** + * Get some informations from the video file + */ +function ffmpeg_get_video_info($vidfile) { + static $ffmpeg_info; + $fid = $vidfile['fid']; + // $command_output = cache_get($fid); + // if(empty($command_output)) { + // escape file name for safety + $file = escapeshellarg($vidfile['filepath']); + // create the full command to execute + $command = variable_get('video_transcoder_path', '/usr/bin/ffmpeg') . ' -i ' . $file; + + //execute the command + ob_start(); + passthru($command." 2>&1", $command_return); + $command_output = ob_get_contents(); + ob_end_clean(); + + // cache the result for further calls + // $ffmpeg_info[$vidfile['fid']] = $command_output; + // cache_set($vidfile['fid'], $command_output); + // } + + return $command_output; +} + + +/** + * Return the video resolution + */ +function ffmpeg_auto_resolution(&$node) { + + if(!variable_get('video_ffmpeg_helper_auto_resolution', false)) { + + // call ffmpeg -i + $ffmpeg_output = ffmpeg_get_video_info($node); + + // get resolution + $pattern = '/Video: .*, ([0-9]{2,4}x[0-9]{2,4})/'; + preg_match_all($pattern, $ffmpeg_output, $matches, PREG_PATTERN_ORDER); + $resolution = $matches[1][0]; + + return explode("x", $resolution); + } + return null; +} + + +/** + * Return the playtime seconds of a video + */ +function ffmpeg_auto_playtime($file) { + + if(!variable_get('video_ffmpeg_helper_auto_playtime', false)) { + + // call ffmpeg -i + $ffmpeg_output = ffmpeg_get_video_info($file); + + // get playtime + $pattern = '/Duration: ([0-9]{2}:[0-9]{2}:[0-9]{2}\.[0-9])/'; + preg_match_all($pattern, $ffmpeg_output, $matches, PREG_PATTERN_ORDER); + $playtime = $matches[1][0]; + + // ffmpeg return lenght as 00:00:31.1 Let's get playtime from that + $hmsmm = explode(":", $playtime); + + $tmp = explode(".", $hmsmm[2]); + $seconds = $tmp[0]; + + $hours = $hmsmm[0]; + $minutes = $hmsmm[1]; + + return $seconds + ($hours * 3600) + ($minutes * 60); + } +} + +/** + * Generates a thumbnail from the video file + * Implementing hook_auto_thumbnail on inc + * + * @param $vidfile + * object with element information + * + * @return + * a drupal file objects + */ +function ffmpeg_auto_thumbnail($vidfile) { + global $user; + $uploaded_file = $vidfile; + $fid = $uploaded_file["fid"]; + + // are we debugging? + // escape the filename for safety + $videofile = escapeshellarg($uploaded_file['filepath']); + $thumb_path = variable_get('video_thumb_path', 'video_thumbs'); + //files will save in files/video_thumbs/#fileId folder + $tmp = file_directory_path(). '/' . $thumb_path . '/' . $fid; + // Ensure the destination directory exists and is writable. + $directories = explode('/', $tmp); + // array_pop($directories); // Remove the file itself. + // Get the file system directory. + $file_system = file_directory_path(); + foreach ($directories as $directory) { + $full_path = isset($full_path) ? $full_path . '/' . $directory : $directory; + // Don't check directories outside the file system path. + if (strpos($full_path, $file_system) === 0) { + field_file_check_directory($full_path, FILE_CREATE_DIRECTORY); + } + } + $count = variable_get('no_of_video_thumbs', 5); + $duration = ffmpeg_auto_playtime($vidfile); + $files = NULL; + for($i = 1; $i <= $count; $i++) { + // get ffmpeg configurations + $seek = ($duration/$count) * $i; + $thumbfile = $tmp . "/video-thumb-for-$fid-$i.png"; + //skip files already exists, this will save ffmpeg traffic + if (!is_file($thumbfile)) { + $tnail = variable_get('video_transcoder_path', '/usr/bin/ffmpeg'); + $options = preg_replace(array('/%videofile/', '/%thumbfile/', '/%seek/'), array($videofile, $thumbfile, $seek), variable_get('video_ffmpeg_thumbnailer_options', '-i %videofile -an -y -f mjpeg -ss %seek -vframes 1 %thumbfile')); + // $options = preg_replace(array('/%videofile/', '/%tmp/', '/%id/', '/%interval/'), array($videofile, $tmp, $i, ($duration/$count)), variable_get('video_image_thumbnailer_options', '-ss %id*%interval -i %videofile -vframes 1 %thumbfile')); + // ffmpeg -ss $i*$interval -i intro.mov -vframes 1 -s 320x240 thumb_$i.jpg + //ffmpeg -i superstunt_8uiarzrh.mp4 -r 0.1 -ss 00:00:5 -f image2 img/images%02d.png + ////ffmpeg -i superstunt_8uiarzrh.mp4 -r 0.05 -ss 00:00:5 -f image2 img/images%1d.jpg + // executes the command + $command = "$tnail $options"; + ob_start(); + passthru($command." 2>&1", $tnail_return); + $tnail_output = ob_get_contents(); + ob_end_clean(); + if (!file_exists($thumbfile)) { + $error_param = array( + '%file' => $thumbfile, + '%cmd' => $command, + '%out' => $tnail_output, + ); + $error_msg = t("error generating thumbnail for video: generated file %file does not exist.<br />Command Executed:<br />%cmd<br />Command Output:<br />%out", $error_param); + // let's log this + watchdog('video_ffmpeg',$error_msg, array(), WATCHDOG_ERROR); + } + } + // Begin building file object. + //TODO : use file_munge_filename() + $file = new stdClass(); + $file->uid = $user->uid; + $file->status = FILE_STATUS_TEMPORARY; + $file->filename = trim("video-thumb-for-$fid-$i.png"); + $file->filepath = $thumbfile; + $file->filemime = file_get_mimetype("video-thumb-for-$fid-$i.png"); + $file->filesize = filesize($thumbfile); + $file->timestamp = time(); + $files[] = $file; + } + return $files; +} + +/** + * Implementing hook_chcek_exepath() on inc + * To check the the path is executable or not + * @param <type> path to check + * @return bool TRUE/FALSE + */ +function ffmpeg_check_exe_path($path=NULL) { + if (!$path) { + $path = variable_get('video_transcoder_path', '/usr/bin/ffmpeg'); + } + if (function_exists('is_executable')) { + $test = 'is_executable'; + } else { + $test = 'file_exists'; + } + return $test($path); +} + +/** + * Implementing hook_auto_convert(); + * @param <type> $job + */ +function ffmpeg_auto_convert(&$job) { + $videofile = escapeshellarg($job->filepath); // escape file name for safety + $convfile = tempnam(file_directory_temp(), 'video-rendering'); + $audiobitrate = variable_get('video_ffmpeg_helper_auto_cvr_audio_bitrate', 64); + $videobitrate = variable_get('video_ffmpeg_helper_auto_cvr_video_bitrate', 200); + $size = _video_render_get_size(); + $converter = variable_get('video_transcoder_path', '/usr/bin/ffmpeg'); + + $options = preg_replace(array('/%videofile/', '/%convertfile/', '/%audiobitrate/', '/%size/', '/%videobitrate/'), + array($videofile, $convfile, $audiobitrate, $size, $videobitrate), + variable_get('video_ffmpeg_helper_auto_cvr_options', + '-y -i %videofile -f flv -ar 22050 -ab %audiobitrate -s %size -b %videobitrate -qscale 1 %convertfile')); + + // set to the converted file output + $job->convfile = $convfile; + + $command = VIDEO_RENDERING_NICE . " $converter $options"; + + //print('executing ' . $command); die; + watchdog('video_render', 'executing: ' . $command, array(), WATCHDOG_DEBUG); +// watchdog('video_render', 'Starting : ' . time()); + //execute the command + ob_start(); + passthru($command." 2>&1", $command_return); + $command_output = ob_get_contents(); + ob_end_clean(); +// watchdog('video_render', 'Completed'); + //print $command_output; + + if (!file_exists($job->convfile) || !filesize($job->convfile)) { + watchdog('video_render', 'video conversion failed. ffmpeg reported the following output: ' . $command_output, array(), WATCHDOG_ERROR); + // _video_render_set_video_encoded_fid($job->nid, $job->vid, -1); + // _video_render_job_change_status($job->nid, $job->vid, VIDEO_RENDERING_FAILED); + } + else { + $file_name = basename($job->filename . ".flv"); + $file = new stdClass(); + $file->uid = $job->uid; + $file->status = FILE_STATUS_PERMANENT; + $file->filename = basename($file_name); + $file->filepath = $job->convfile; + $file->filemime = file_get_mimetype($file_name); + $file->filesize = filesize($job->convfile); + $file->timestamp = time(); + + $job->converted = $file; + } +} + + +/** + * Calculate the converted video size basing on the width set on administration. + * Aspect ration is maintained. + */ +function _video_render_get_size() { + return variable_get('video_ffmpeg_width', 640) . 'x' . variable_get('video_ffmpeg_height', 480); +}
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