Files
YouTube.js/src/core/mixins/MediaInfo.ts

106 lines
3.3 KiB
TypeScript

import type { ApiResponse } from '../Actions.js';
import type Actions from '../Actions.js';
import * as Constants from '../../utils/Constants.js';
import type { DownloadOptions, FormatFilter, FormatOptions, URLTransformer } from '../../utils/FormatUtils.js';
import FormatUtils from '../../utils/FormatUtils.js';
import { InnertubeError } from '../../utils/Utils.js';
import type Format from '../../parser/classes/misc/Format.js';
import type { INextResponse, IPlayerResponse } from '../../parser/index.js';
import Parser from '../../parser/index.js';
export default class MediaInfo {
#page: [IPlayerResponse, INextResponse?];
#actions: Actions;
#cpn: string;
#playback_tracking;
streaming_data;
playability_status;
constructor(data: [ApiResponse, ApiResponse?], actions: Actions, cpn: string) {
this.#actions = actions;
const info = Parser.parseResponse<IPlayerResponse>(data[0].data);
const next = data?.[1]?.data ? Parser.parseResponse<INextResponse>(data[1].data) : undefined;
this.#page = [ info, next ];
this.#cpn = cpn;
if (info.playability_status?.status === 'ERROR')
throw new InnertubeError('This video is unavailable', info.playability_status);
this.streaming_data = info.streaming_data;
this.playability_status = info.playability_status;
this.#playback_tracking = info.playback_tracking;
}
/**
* Generates a DASH manifest from the streaming data.
* @param url_transformer - Function to transform the URLs.
* @param format_filter - Function to filter the formats.
* @returns DASH manifest
*/
async toDash(url_transformer?: URLTransformer, format_filter?: FormatFilter): Promise<string> {
return FormatUtils.toDash(this.streaming_data, url_transformer, format_filter, this.#cpn, this.#actions.session.player, this.#actions);
}
/**
* Selects the format that best matches the given options.
* @param options - Options
*/
chooseFormat(options: FormatOptions): Format {
return FormatUtils.chooseFormat(options, this.streaming_data);
}
/**
* Downloads the video.
* @param options - Download options.
*/
async download(options: DownloadOptions = {}): Promise<ReadableStream<Uint8Array>> {
return FormatUtils.download(options, this.#actions, this.playability_status, this.streaming_data, this.#actions.session.player, this.cpn);
}
/**
* Adds video to the watch history.
*/
async addToWatchHistory(client_name = Constants.CLIENTS.WEB.NAME, client_version = Constants.CLIENTS.WEB.VERSION, replacement = 'https://www.'): Promise<Response> {
if (!this.#playback_tracking)
throw new InnertubeError('Playback tracking not available');
const url_params = {
cpn: this.#cpn,
fmt: 251,
rtn: 0,
rt: 0
};
const url = this.#playback_tracking.videostats_playback_url.replace('https://s.', replacement);
const response = await this.#actions.stats(url, {
client_name,
client_version
}, url_params);
return response;
}
/**
* Actions instance.
*/
get actions(): Actions {
return this.#actions;
}
/**
* Content Playback Nonce.
*/
get cpn(): string {
return this.#cpn;
}
/**
* Original parsed InnerTube response.
*/
get page(): [IPlayerResponse, INextResponse?] {
return this.#page;
}
}