function cache_url_wav($vid_url, $dir_path, $switches = array(), $ffmpeg = '')
{
$result = FALSE;
$vid_file_path = cache_url($vid_url, $dir_path);
if ($vid_file_path) {
$result = cache_file_wav($vid_file_path, $switches, $ffmpeg);
}
return $result;
}
function __buildAudio()
{
$result = FALSE;
$c = 0;
$y = sizeof(array_keys($this->__mashData['cache_urls']));
foreach ($this->__mashData['cache_urls'] as $url => $true) {
$this->_progressStep('CacheFiles', 1 + round(20 * ($c / $y)), 'Caching Media');
$result = cache_url($url, $this->_options['DirCache']);
if (!$result) {
throw new RuntimeException('Could not cache media file: ' . $url);
}
$file_path = $result;
$ext = file_extension($file_path);
switch ($ext) {
//case 'mp3': // recent version of ecasound doesn't support seeking mp3s
case 'wav':
case 'aiff':
case 'aif':
break;
default:
// needs to be converted for ecasound
$cached_wav = cache_file_wav($file_path, array(), $this->_options['PathFFmpeg']);
if (!$cached_wav) {
throw new RuntimeException('Could not determine path to audio wav file: ' . $file_path);
}
if (!empty($this->_options['Verbose'])) {
$this->log($cached_wav['command']);
}
if (!$cached_wav['path']) {
throw new RuntimeException('Could not build audio wav file: ' . $file_path);
}
$file_path = $cached_wav['path'];
}
$this->__mashData['cache_urls'][$url] = $file_path;
$this->_progressStep('CacheFiles', 100, 'Cached Media');
}
$this->_progressStep('BuildAudio', 25, 'Building Audio');
$audio_path = $this->_buildDir . 'build/audio.wav';
if ($this->__mashData['has_audio']) {
$path = $this->_options['CoderBaseURL'];
$cmd = $this->_options['PathEcasound'];
$counter = 1;
$last_sound = floatval(0);
$one = floatval(1);
foreach ($this->__mashData['clips'] as $clip) {
if (!$clip['audio']) {
continue;
}
// make sure we've got a locally cached file for this url
$file_path = $this->__mashData['cache_urls'][$clip['audio']];
if (!$file_path) {
throw new RuntimeException('No path for audio URL: ' . $clip['audio']);
}
$cmd .= ' -a:' . $counter++ . ' -i ';
if (floatgtr($clip['loops'], $one)) {
$cmd .= ' audioloop,';
}
$cmd .= "playat,{$clip['start']},select,{$clip['trimstart']},{$clip['length']},{$file_path}";
if (floatgtr($clip['loops'], $one)) {
$cmd .= ' -t:' . $clip['duration'] * $clip['loops'];
}
$volume = $clip['volume'];
$volume = explode(',', $volume);
$z = sizeof($volume) / 2;
$cmd .= ' -ea:0 -klg:1,0,100,' . $z;
for ($i = 0; $i < $z; $i++) {
$p = ($i + 1) * 2;
$pos = floatval($volume[$p - 2]);
$val = floatval($volume[$p - 1]) / floatval(100);
if ($pos) {
$pos = $clip['length'] * $clip['loops'] * $pos / floatval(100);
}
$cmd .= ',' . ($clip['start'] + $pos) . ',' . $val;
}
$last_sound = floatmax($last_sound, $clip['start'] + $clip['length']);
}
// if there is space at the end, fill it with silence
if (floatgtr($this->__mashData['duration'], $last_sound)) {
//$this->log('duration = ' . $this->__mashData['duration'] . ' last_sound = ' . $last_sound);
$cmd .= ' -a:' . $counter . ' -i ';
$cmd .= 'playat,0,tone,sine,0,' . $this->__mashData['duration'];
}
$cmd .= ' -a:all -z:mixmode,sum';
$cmd .= ' -o ' . $audio_path;
}
if ($cmd) {
$result = $this->_shellExecute($cmd);
if (!file_exists($audio_path)) {
throw new RuntimeException('Could not build audio: ' . $cmd);
}
$result = $audio_path;
}
return $result;
}
function __buildAudio($file_path)
{
if (!empty($this->_options['EncoderAudioExtension'])) {
if (get_file_info('audio', $file_path, $this->_options['PathFFmpeg'])) {
$this->_progressStep('EncodeAudio', 5, 'Encoding Audio ' . $file_path);
$media_path = media_file_path($file_path);
$audio_path = $media_path . 'audio.' . $this->_options['EncoderAudioExtension'];
$switches = array();
if (!safe_path($audio_path)) {
throw new RuntimeException('Could not create path: ' . $audio_path);
}
$cmd = '';
$cmd .= $this->_options['PathFFmpeg'] . ' -i ';
$cmd .= $file_path;
$cmd .= ' -ab ' . $this->_options['EncoderAudioBitrate'] . 'k';
$cmd .= ' -ar ' . $this->_options['EncoderAudioFrequency'];
//$cmd .= ' -acodec ' . $this->_options['EncoderAudioExtension'];
$cmd .= ' -vn ' . $audio_path;
$response = $this->_shellExecute($cmd);
if (!$response) {
throw new RuntimeException('Problem with audio command: ' . $cmd);
}
if (!file_exists($audio_path)) {
throw new RuntimeException('Could not build audio: ' . $response);
}
$cached_wav = cache_file_wav($file_path, $switches, $this->_options['PathFFmpeg']);
if (!$cached_wav) {
throw new RuntimeException('Could not determine path to audio wav file: ' . $file_path);
}
if (!empty($this->_options['Verbose'])) {
$this->log($cached_wav['command']);
}
if (!$cached_wav['path']) {
throw new RuntimeException('Could not build audio wav file: ' . $file_path);
}
$wav_file_path = $cached_wav['path'];
// get a more accurate duration reading from WAV file
if (!($meta_path = meta_file_path('blah', $wav_file_path))) {
throw new RuntimeException('Could not determine meta path for ' . $wav_file_path);
}
if (!($meta_dir = dir_path($meta_path))) {
throw new RuntimeException('Could not determine dir path of ' . $meta_path);
}
if (!($duration = get_file_info('duration', $wav_file_path, $this->_options['PathFFmpeg']))) {
throw new RuntimeException('Could not determine duration of ' . $wav_file_path);
}
if (!set_file_info($file_path, 'duration', $duration)) {
throw new RuntimeException('Could not set duration of ' . $file_path);
}
// make waveform graphic
$this->_ignore[] = $wav_file_path;
$audio_path = $media_path . 'audio.' . $this->_options['EncoderWaveformExtension'];
$cmd = '';
$cmd .= $this->_options['PathWaveformGenerator'] . ' --input ' . $wav_file_path;
$cmd .= ' --height 64 --width 2800';
$cmd .= ' --linecolor ' . $this->_options['EncoderWaveformForecolor'];
$cmd .= ' --padding 0';
$cmd .= ' --backgroundcolor ' . $this->_options['EncoderWaveformBackcolor'];
$cmd .= ' --output ' . $audio_path;
$response = $this->_shellExecute($cmd);
if (!file_exists($audio_path)) {
throw new RuntimeException('Could not create waveform graphic: ' . $cmd);
}
$this->_shellExecute('rm -R ' . $meta_dir);
$this->_progressStep('EncodeAudio', 100, 'Encoded Audio');
}
}
}
