function cache_url_frames($vid_url, $fps, $start = 0, $duration = -1, $dir_path, $options = array(), $switches = array(), $ffmpeg = '')
{
$result = FALSE;
$ext = file_extension($vid_url);
if ($ext) {
$vid_file_path = cache_url($vid_url, $dir_path);
if ($vid_file_path) {
$result = cache_file_frames($vid_file_path, $fps, $start, $duration, $options, $switches, $ffmpeg);
}
}
return $result;
}
function __cacheMedia()
{
$fps = floatval($this->_options['DecoderFPS']);
// cache frames for all video files used in flash
$z = sizeof($this->__mashData['timespans']);
for ($i = 0; $i < $z; $i++) {
$span = $this->__mashData['timespans'][$i];
$span_start = $span[0];
$span_end = $span[0] + $span[1];
$clips = MovieMasher_Coder_Decoder::videoBetween($this->__mashData['clips'], $span_start, $span_end);
$this->_progressStep('CacheFiles', 1 + round(30 * ($i / $z)), 'Caching Frames');
foreach ($clips as $clip) {
if (empty($clip['encode'])) {
continue;
}
$clip_trim = $this->__clipTrim($clip, $span_start, $span_end, $fps);
if (!$clip_trim) {
throw new UnexpectedValueException('Could not get clip info: ' . $clip['id']);
}
$media_tag = $this->__mashData['media'][$clip['id']];
$url = (string) $media_tag['source'];
$url = absolute_url(end_with_slash($this->_options['CoderBaseURL']), $url);
$ext = file_extension($url);
if (!$ext) {
throw new UnexpectedValueException('Media source attributes must have a file extension: ' . $url);
}
$vid_file_path = cache_url($url, $this->_options['DirCache']);
if (!$vid_file_path) {
throw new UnexpectedValueException('Could not cache URL: ' . $url);
}
$options = array();
$orig_dimensions = get_file_info('dimensions', $vid_file_path, $this->_options['PathFFmpeg']);
if (!$orig_dimensions) {
throw new RuntimeException('Could not read dimensions: ' . $vid_file_path);
}
$target_dimensions = scale_proud($orig_dimensions, $this->_options['DecoderDimensions']);
if (!$target_dimensions) {
$target_dimensions = $this->_options['DecoderDimensions'];
}
$options['dimensions'] = $target_dimensions;
$options['bitrate'] = 8000;
// max?
$options['dimensions_dir'] = $this->_options['DecoderDimensions'];
$options['duration'] = $clip['duration'];
$switches = array();
$fps_secs = floatval(1) / $this->__mashData['quantize'];
// we need an extra frame in mash's fps
if ($clip_trim['trimstart']) {
$clip_trim['trimstart'] -= $fps_secs;
$clip_trim['trimlength'] += $fps_secs;
}
$clip_trim['trimlength'] += $fps_secs;
if ($clip['speed'] != 1 || !empty($this->_options['DecoderCacheAllVideoFrames'])) {
// TODO: don't cache all the frames when speed isn't normal
$clip_trim['trimstart'] = 0;
$clip_trim['trimlength'] = -1;
}
//$this->log('Caching ' . ((string) $media_tag['label']) . ' @ ' . $this->_options['DecoderFPS'] . ' ' . $clip_trim['trimstart'] . ' -> ' . $clip_trim['trimlength']);
$cached_frames = cache_file_frames($vid_file_path, $this->_options['DecoderFPS'], $clip_trim['trimstart'], $clip_trim['trimlength'], $options, $switches, $this->_options['PathFFmpeg']);
if (!$cached_frames) {
throw new RuntimeException('Could not prepare to cache image sequence: ' . $url);
}
if (!empty($this->_options['Verbose']) && !empty($cached_frames['command'])) {
$this->log($cached_frames['command'] . "\n" . $cached_frames['result']);
}
if (!$cached_frames['files']) {
throw new RuntimeException('Could not cache image sequence: ' . $url);
}
$media_tag['url'] = 'http://' . $this->getOption('HostLocal') . '/mm.' . $this->getVersion() . '/cache/' . frame_file_path(url_file_path($url), $this->_options['DecoderDimensions'], $this->_options['DecoderFPS']);
}
}
// cache the non-flash video content
$zero = floatval(0);
$cur_time = $zero;
$z = sizeof($this->__mashData['timespans']);
for ($i = 0; $i < $z; $i++) {
if (floatgtr($this->__mashData['timespans'][$i][0], $cur_time)) {
// first timespan doesn't start where the last left off, so there is something between
$this->__cacheVisuals($cur_time, $this->__mashData['timespans'][$i][0]);
}
$cur_time = $this->__mashData['timespans'][$i][1];
$this->_progressStep('CacheFiles', 30 + (1 + round(30 * ($i / $z))), 'Caching Visuals');
}
if (!floatcmp($cur_time, $this->__mashData['duration'])) {
// last timespan doesn't end the mash, so there is stuff after it
$this->__cacheVisuals($cur_time, $this->__mashData['duration']);
}
// cache audio and video with audio files
$i = 0;
$z = sizeof(array_keys($this->__mashData['cache_urls']));
foreach ($this->__mashData['cache_urls'] as $url => $true) {
$this->_progressStep('CacheFiles', 60 + (1 + round(30 * ($i++ / $z))), 'Caching Audio');
$result = cache_url($url, $this->_options['DirCache']);
if (!$result) {
throw new RuntimeException('Could not cache audio: ' . $url);
}
}
$this->_progressStep('CacheFiles', 100, 'Cached Media');
}
function __buildSequence($file_path)
{
$this->_progressStep('EncodeVideo', 5, 'Encoding Video');
if (isset($this->_options['EncoderExtension'])) {
$options = array();
$orig_dimensions = get_file_info('dimensions', $file_path);
if (!$orig_dimensions) {
throw new RuntimeException('Could not read dimensions: ' . $file_path);
}
$target_dimensions = scale_proud($orig_dimensions, $this->_options['EncoderDimensions']);
if (!$target_dimensions) {
$target_dimensions = $this->_options['EncoderDimensions'];
}
$target_size = explode('x', $target_dimensions);
$options['bitrate'] = round($this->_options['EncoderImageQuality'] / 100 * ($target_size[0] * $target_size[1] * 3 * $this->_options['EncoderFPS'] / 1024));
$options['dimensions'] = $target_dimensions;
$options['dimensions_dir'] = $this->_options['EncoderDimensions'];
$switches = switchesFromString($this->_options['EncoderSwitches']);
$cached_frames = cache_file_frames($file_path, $this->_options['EncoderFPS'], 0, -1, $options, $switches, $this->_options['PathFFmpeg']);
if (!$cached_frames) {
throw new RuntimeException('Could not prepare to cache image sequence: ' . $file_path);
}
if (!empty($this->_options['Verbose']) && !empty($cached_frames['command'])) {
$this->log($cached_frames['command'] . "\n" . $cached_frames['result']);
}
if (!$cached_frames['files']) {
throw new RuntimeException('Could not cache image sequence: ' . $file_path);
}
$this->_progressStep('EncodeVideo', 100, 'Encoded Video');
}
}
