function _populateDefaults()
{
parent::_populateDefaults();
$this->_configDefaults['PathWaveformGenerator'] = array('value' => 'PATH', 'description' => "Path to wav2png program for generating waveforms", 'default' => 'wav2png');
foreach (MovieMasher_Coder_Encoder::$defaultOptions as $k => $a) {
$this->_optionsDefaults[$k] = $a;
}
}
function __buildVisuals($start, $stop)
{
$path = $this->_options['CoderBaseURL'];
$result = array();
$clips = MovieMasher_Coder_Decoder::videoBetween($this->__mashData['clips'], $start, $stop);
$fps = floatval($this->_options['DecoderFPS']);
$z = sizeof($clips);
for ($i = 0; $i < $z; $i++) {
$clip = $clips[$i];
// id, type, tag, start, stop, duration (as floats)
$clip_trim = $this->__clipTrim($clip, $start, $stop, $fps);
if (!$clip_trim) {
throw new UnexpectedValueException('Could not determine clip trim: ' . $clip['id']);
}
$media_tag = $this->__mashData['media'][$clip['id']];
$cmd = '';
$cmd .= $this->_options['PathFFmpeg'];
$dims = explode('x', $this->_options['DecoderDimensions']);
$url = (string) $media_tag['source'];
if (!$url) {
$url = (string) $media_tag['url'];
}
$url = absolute_url(end_with_slash($this->_options['CoderBaseURL']), $url);
$url = MovieMasher_Coder::cleanURL($url);
switch ($clip['type']) {
case 'image':
$file_path = cache_url($url, $this->_options['DirCache']);
if (!$file_path) {
throw new RuntimeException('Could not cache image: ' . $url);
}
$orig_dims = get_file_info('dimensions', $file_path, $this->_options['PathFFmpeg']);
if (!$orig_dims) {
throw new RuntimeException('Could not determine image dimensions: ' . $url);
}
$orig_dims = explode('x', $orig_dims);
$switches = scale_switches($orig_dims, $dims, $clip['fill']);
$cmd .= ' -loop_input -vframes ' . floor($fps * $clip_trim['trimlength']);
$cmd .= ' -s ' . $orig_dims[0] . 'x' . $orig_dims[1];
$cmd .= ' -i ' . $file_path;
if ($switches) {
$cmd .= ' ' . stringFromSwitches($switches);
} else {
$cmd .= ' -s ' . $this->_options['DecoderDimensions'];
}
break;
case 'video':
$video = (string) $media_tag['source'];
$video = MovieMasher_Coder::cleanURL($video);
if ($video) {
$url = absolute_url(end_with_slash($this->_options['CoderBaseURL']), $video);
}
$ext = file_extension($url);
if ($ext) {
// grab the video file
$input_path = $file_path = cache_url($url, $this->_options['DirCache']);
if (!$file_path) {
throw new RuntimeException('Could not cache video: ' . $url);
}
} else {
// grab image sequence - very untested
$clip_fps = floatval((string) $media_tag['fps']);
$fps_secs = floatval(1) / $clip_fps;
$clip_trim['trimstart'] = floor($clip_trim['trimstart'] / $fps_secs) * $fps_secs;
$cmd .= ' -r ' . $clip_fps;
$file_path = url_file_path($url, $this->_options['DirCache']);
$orig_dims = get_file_info('dimensions', $file_path, $this->_options['PathFFmpeg']);
if (!$orig_dims) {
throw new RuntimeException('Could not determine image sequence dimensions: ' . $url);
}
$input_path = frame_file_path($file_path, $orig_dims, $clip_fps);
$input_path .= '%' . intval($media_tag['zeropadding']) . 'd.jpg';
$fps = $clip_fps;
}
$orig_dims = get_file_info('dimensions', $file_path, $this->_options['PathFFmpeg']);
if (!$orig_dims) {
throw new RuntimeException('Could not determine dimensions: ' . $file_path . ' ' . $this->_options['PathFFmpeg']);
}
$orig_dims = explode('x', $orig_dims);
$switches = scale_switches($orig_dims, $dims, $clip['fill']);
$cmd .= ' -vframes ' . floor($fps * $clip_trim['trimlength']);
$cmd .= ' -s ' . $orig_dims[0] . 'x' . $orig_dims[1];
$cmd .= ' -i ' . $input_path;
if ($clip_trim['trimstart']) {
$cmd .= ' -ss ' . $clip_trim['trimstart'];
}
$cmd .= ' -an';
// no audio
if ($switches) {
$cmd .= ' ' . stringFromSwitches($switches);
} else {
$cmd .= ' -s ' . $this->_options['DecoderDimensions'];
}
break;
}
$cmd .= ' -t ' . $clip_trim['trimlength'];
$result[] = $cmd;
}
return $result;
}
