tav-media/lib/src/assets/tav-asset.js

Cross platform media editing framework

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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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import { allowCallNativeAnytime, TAVObject } from '../types/tav-object';
import { tav } from '../tav';
/**
 * A light weight container for audiovisual media.
 * @hideconstructor
 * @category Assets
 */
export class Asset extends TAVObject {
    /**
     * Constructors are used by parsers, don't use it in your code.
     */
    constructor(id, path) {
        super(id);
        /**
         * Returns the type of this asset
         */
        this.type = 'Asset';
        this._path = '';
        this._path = path !== null && path !== void 0 ? path : '';
    }
    /**
     * Build the native asset based on the path.
     * @returns The native asset object
     */
    build() {
        return __awaiter(this, void 0, void 0, function* () {
            if (!this.prepared) {
                yield this.prepare();
            }
            if (this.nativeInvalidated) {
                this._nativeObject = null;
            }
            if (this._nativeObject && this._nativeObject.path === this.path) {
                return this._nativeObject;
            }
            const asset = yield tav.webAssemblyQueue.exec(this.createAsset, this, null);
            if (!asset)
                return undefined;
            asset.path = this.path;
            this.updateAsset(asset);
            this._nativeObject = asset;
            this.nativeInvalidated = false;
            return asset;
        });
    }
    /**
     * Release the native asset.
     */
    release() {
        var _a;
        if ((_a = this._nativeObject) === null || _a === void 0 ? void 0 : _a.delete) {
            this._nativeObject.delete();
        }
        this._nativeObject = null;
    }
    /**
     * Call native methods to create the native asset object.
     */
    createAsset() {
        return __awaiter(this, void 0, void 0, function* () {
            return undefined;
        });
    }
    /**
     * Update the native asset object based on the properties of this asset.
     * @param asset The native asset object
     */
    updateAsset(asset) {
        this._nativeObject = asset;
    }
    /**
     * Get or set the path of this asset.
     * Setting the path will invalidate the native asset.
     * You
     */
    get path() {
        return this._path;
    }
    set path(path) {
        this._path = path;
        this._nativeObject = null;
        this.prepared = false;
        this.invalidated();
    }
    /**
     * Get the native asset object
     */
    get nativeAsset() {
        return this._nativeObject;
    }
    /**
     * Returns true if this asset has audio output.
     */
    get hasAudio() {
        var _a;
        return ((_a = this.nativeAsset) === null || _a === void 0 ? void 0 : _a.hasAudio()) || false;
    }
    /**
     * Returns true if this asset has video output.
     */
    get hasVideo() {
        var _a;
        return ((_a = this.nativeAsset) === null || _a === void 0 ? void 0 : _a.hasVideo()) || false;
    }
    /**
     * Returns the duration of this asset.
     */
    get duration() {
        var _a;
        return ((_a = this.nativeAsset) === null || _a === void 0 ? void 0 : _a.duration()) || 0;
    }
    /**
     * Returns the width of this asset.
     */
    get width() {
        var _a;
        return ((_a = this.nativeAsset) === null || _a === void 0 ? void 0 : _a.width()) || 0;
    }
    /**
     * Returns the height of this asset.
     */
    get height() {
        var _a;
        return ((_a = this.nativeAsset) === null || _a === void 0 ? void 0 : _a.height()) || 0;
    }
}
__decorate([
    allowCallNativeAnytime
], Asset.prototype, "hasAudio", null);
__decorate([
    allowCallNativeAnytime
], Asset.prototype, "hasVideo", null);
__decorate([
    allowCallNativeAnytime
], Asset.prototype, "duration", null);
__decorate([
    allowCallNativeAnytime
], Asset.prototype, "width", null);
__decorate([
    allowCallNativeAnytime
], Asset.prototype, "height", null);