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<?php
namespace YoutubeDownloader;
/**
* VideoInfo
*
* This class parses a videoinfo string from
* http://www.youtube.com/get_video_info?video_id=...
*
* Possible array keys could be:
* - 'length_seconds',
* - 'midroll_prefetch_size',
* - 'ad_tag',
* - 'storyboard_spec',
* - 'loudness',
* - 'status',
* - 'ptk',
* - 'instream_long',
* - 'url_encoded_fmt_stream_map',
* - 'ad_device',
* - 'ad_slots',
* - 'ucid',
* - 'rvs',
* - 'fmt_list',
* - 'iv_endscreen_url',
* - 'caption_audio_tracks',
* - 'atc',
* - 'allow_ratings',
* - 'afv_ad_tag',
* - 'ptchn',
* - 'vmap',
* - 'xhr_apiary_host',
* - 'apiary_host_firstparty',
* - 'view_count',
* - 'player_error_log_fraction',
* - 'eventid',
* - 'fflags',
* - 'gpt_migration',
* - 'ppv_remarketing_url',
* - 'fexp',
* - 'ad3_module',
* - 'relative_loudness',
* - 't',
* - 'innertube_context_client_version',
* - 'video_id',
* - 'allow_below_the_player_companion',
* - 'show_content_thumbnail',
* - 'enablecsi',
* - 'apiary_host',
* - 'ldpj',
* - 'fade_in_duration_milliseconds',
* - 'allow_html5_ads',
* - 'caption_translation_languages',
* - 'gut_tag',
* - 'loeid',
* - 'videostats_playback_base_url',
* - 'ad_flags',
* - 'ismb',
* - 'itct',
* - 'of',
* - 'dashmpd',
* - 'title',
* - 'tmi',
* - 'gapi_hint_params',
* - 'tag_for_child_directed',
* - 'idpj',
* - 'default_audio_track_index',
* - 'as_launched_in_country',
* - 'fade_in_start_milliseconds',
* - 'afv_ad_tag_restricted_to_instream',
* - 'c',
* - 'pyv_ad_channel',
* - 'hl',
* - 'innertube_api_key',
* - 'cc_contribute',
* - 'fade_out_duration_milliseconds',
* - 'cl',
* - 'cr',
* - 'allow_embed',
* - 'token',
* - 'dbp',
* - 'afv_instream_max',
* - 'plid',
* - 'cid',
* - 'ad_preroll',
* - 'mpvid',
* - 'aftv',
* - 'probe_url',
* - 'watermark',
* - 'ad_logging_flag',
* - 'no_get_video_log',
* - 'timestamp',
* - 'trueview',
* - 'vm',
* - 'is_listed',
* - 'apply_fade_on_midrolls',
* - 'show_pyv_in_related',
* - 'thumbnail_url',
* - 'account_playback_token',
* - 'host_language',
* - 'excluded_ads',
* - 'core_dbp',
* - 'csi_page_type',
* - 'keywords',
* - 'cver',
* - 'innertube_api_version',
* - 'caption_tracks',
* - 'enabled_engage_types',
* - 'encoded_ad_safety_reason',
* - 'sffb',
* - 'pltype',
* - 'dclk',
* - 'oid',
* - 'player_response',
* - 'cafe_experiment_id',
* - 'fade_out_start_milliseconds',
* - 'midroll_freqcap',
* - 'swf_player_response',
* - 'author',
* - 'avg_rating',
*
* Possible array keys in an error response could be:
* - 'status',
* - 'errorcode',
* - 'reason',
* - 'errordetail',
*/
class VideoInfo
{
/**
* Creates a VideoInfo from string
*
* @param string $video_info
* @return VideoInfo
*/
public static function createFromString($string)
{
parse_str($string, $video_info);
return new self($video_info);
}
private $data = [];
/**
* Set the necessary keys
*/
private $allowed_keys = [
'status',
'reason',
'thumbnail_url',
'title',
'url_encoded_fmt_stream_map',
'adaptive_fmts',
];
/**
* Creates a VideoInfo from an array
*
* @param array $video_info
* @return self
*/
private function __construct(array $video_info)
{
foreach ($this->allowed_keys as $key)
{
if ( isset($video_info[$key]) )
{
$this->data[$key] = $video_info[$key];
}
else
{
$this->data[$key] = null;
}
}
}
/**
* Get the status
*
* @return string
*/
public function getStatus()
{
return $this->data['status'];
}
/**
* Get the error reason
*
* @return string
*/
public function getErrorReason()
{
return $this->data['reason'];
}
/**
* Get the thumbnail_url
*
* @return string
*/
public function getThumbnailUrl()
{
return $this->data['thumbnail_url'];
}
/**
* Get the title
*
* @return string
*/
public function getTitle()
{
return $this->data['title'];
}
/**
* Get the cleaned title
*
* @return string
*/
public function getCleanedTitle()
{
// Removes non-alphanumeric and unicode character.
$title = preg_replace('/[^A-Za-z0-9]+/', '-', $this->getTitle());
return trim($title, "-");
}
/**
* Get the url_encoded_fmt_stream_map
*
* @return string
*/
public function getStreamMapString()
{
return $this->data['url_encoded_fmt_stream_map'];
}
/**
* Get the adaptive_fmts
*
* @return string
*/
public function getAdaptiveFormatsString()
{
return $this->data['adaptive_fmts'];
}
}