tav-media
Version:
Cross platform media editing framework
135 lines (134 loc) • 5.79 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import { tav } from '../tav';
import { Asset } from './tav-asset';
import { allowCallNativeAnytime } from '../types/tav-object';
import { makeClipAssetPath, parseClipAssetPath } from '../utils/clip-asset-path';
/**
* MovieAsset is an asset that can be used to play video file.
* @hideconstructor
* @category Assets
*/
export class MovieAsset extends Asset {
constructor() {
super(...arguments);
/**
* Returns `'MovieAsset'`
*/
this.type = 'MovieAsset';
this.clipId = '';
}
/**
* Creates a TAVMedia Movie object from a specified range of a video file, return null if the file does
* not exist or it's not a valid video file.
* @param path The path of the video file.
* @param options The options of the video file.
* * The MovieAsset will skip metadata loading if you
* set the width, height, duration at the same time.
*/
static MakeFromPath(path, options) {
return __awaiter(this, void 0, void 0, function* () {
const { assetPath } = parseClipAssetPath(path);
this.MovieOptions[assetPath] = options;
const movieAsset = new MovieAsset(null, path);
movieAsset.options = options;
yield movieAsset.prepare();
const asset = yield movieAsset.build();
if (!asset) {
movieAsset.release();
return null;
}
return movieAsset;
});
}
/**
* Preload videos
* @param urls The urls of the video files you want to preload.
*/
static preload(urls) {
return __awaiter(this, void 0, void 0, function* () {
return yield Promise.all(urls.map(url => tav.TAVVideoFrameReader.preload(url)));
});
}
/**
* @ignore
*/
$getCopyOrSelfWillBeUsedByClip(clip) {
return __awaiter(this, void 0, void 0, function* () {
if (!this.clipId) {
this.clipId = clip.id;
return this;
}
const clipPath = makeClipAssetPath(clip.id, this.path);
const assetClone = yield MovieAsset.MakeFromPath(clipPath);
yield assetClone.build();
return assetClone;
});
}
doPrepare() {
const _super = Object.create(null, {
doPrepare: { get: () => super.doPrepare }
});
var _a, _b, _c;
return __awaiter(this, void 0, void 0, function* () {
yield _super.doPrepare.call(this);
if (tav.PLATFORM === 'wx' || tav.PLATFORM === 'browser') {
try {
if (((_a = this.options) === null || _a === void 0 ? void 0 : _a.height) && ((_b = this.options) === null || _b === void 0 ? void 0 : _b.width) && ((_c = this.options) === null || _c === void 0 ? void 0 : _c.duration)) {
this.rawVideo = {
videoWidth: this.options.width,
videoHeight: this.options.height,
duration: this.options.duration,
};
}
const videoTask = tav.TAVVideoFrameReader.preload(this.path);
const audioTask = tav.TAVMovieAudioReader.preload(this.path);
if (!this.rawVideo) {
this.rawVideo = yield videoTask;
yield audioTask;
}
}
catch (e) {
this.rawVideo = null;
console.error('video load failed', this.path);
}
}
});
}
createAsset() {
return __awaiter(this, void 0, void 0, function* () {
if (!this.path)
return undefined;
if (tav.PLATFORM === 'wx' || tav.PLATFORM === 'browser') {
if (!this.rawVideo)
return undefined;
return yield tav.MovieAsset.MakeFromUrl(this.path, this.rawVideo.videoWidth, this.rawVideo.videoHeight, this.rawVideo.duration * 1000000);
}
return yield tav.MovieAsset.MakeFromPath(this.path);
});
}
/**
* Returns the frameRate of this asset.
*/
get frameRate() {
var _a;
return ((_a = this.nativeAsset) === null || _a === void 0 ? void 0 : _a.frameRate()) || 0;
}
}
MovieAsset.MovieOptions = {};
__decorate([
allowCallNativeAnytime
], MovieAsset.prototype, "frameRate", null);