tav-media/lib/src/clips/tav-media-clip.js

Cross platform media editing framework

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 { Clip } from './tav-clip';
/**
 * Base class for all timed audiovisual resources created from assets or compositions. Media has a
 * contentDuration property which represents its original playback duration, so changing the duration
 * property of a Media will affect its playback speed.
 *
 * @hideconstructor
 * @category Clips
 */
export class MediaClip extends Clip {
    constructor() {
        super(...arguments);
        this.type = 'Media';
        this._volume = 1;
    }
    /**
     * @ignore
     */
    get isNativeInvalidated() {
        return this.nativeInvalidated;
    }
    release() {
        var _a;
        super.release();
        (_a = this.asset) === null || _a === void 0 ? void 0 : _a.release();
    }
    updateClip(clip) {
        const _super = Object.create(null, {
            updateClip: { get: () => super.updateClip }
        });
        return __awaiter(this, void 0, void 0, function* () {
            yield _super.updateClip.call(this, clip);
            const media = clip;
            yield tav.webAssemblyQueue.exec(media.setDuration, media, this.duration || this.contentDuration || 0);
            yield tav.webAssemblyQueue.exec(media.setVolume, media, this._volume);
        });
    }
    /**
     * @ignore
     */
    get asset() {
        return this._asset;
    }
    set asset(val) {
        this._asset = val;
    }
    /**
     * Get or set the start time of the asset to be used in the clip.
     */
    get contentStartTime() {
        return this._contentStartTime;
    }
    set contentStartTime(time) {
        this.setContentStartTime(time);
    }
    /**
     * Get or set the duration of the asset to be used in the clip.
     * If the content duration is different from the duration of the clip,
     * the clip will change the playback speed.
     */
    get contentDuration() {
        return this._contentDuration;
    }
    set contentDuration(time) {
        this.setContentDuration(time);
    }
    /**
     * Get or set the volume of this media, which is usually in the range [0 - 1.0].
     */
    get volume() {
        return this._volume;
    }
    set volume(vol) {
        var _a;
        let val = vol;
        if (vol < 0) {
            console.error('The volume must be in the range of 0 to 1.');
            val = 0;
        }
        else if (vol > 1) {
            console.error('The volume must be in the range of 0 to 1.');
            val = 1;
        }
        this._volume = val;
        if (!this.nativeClip) {
            this.invalidated();
            ;
            return;
        }
        tav.webAssemblyQueue.exec((_a = this.nativeClip) === null || _a === void 0 ? void 0 : _a.setVolume, this.nativeClip, val);
    }
    setContentStartTime(time) {
        if (this._contentStartTime === time)
            return;
        this._contentStartTime = time;
        this._contentTimeInvalid = true;
        this.invalidated();
    }
    setContentDuration(time) {
        if (this._contentDuration === time)
            return;
        this._contentDuration = time;
        this._contentTimeInvalid = true;
        this.invalidated();
    }
}