common.js

// Player request.
const kPlayVideoReq = 0;
const kPauseVideoReq = 1;
const kStopVideoReq = 2;

// Player response.
const kPlayVideoRsp = 0;
const kAudioInfo = 1;
const kVideoInfo = 2;
const kAudioData = 3;
const kVideoData = 4;

// Downloader request.
const kGetFileInfoReq = 0;
const kDownloadFileReq = 1;
const kCloseDownloaderReq = 2;

// Downloader response.
const kGetFileInfoRsp = 0;
const kFileData = 1;

// Downloader Protocol.
const kProtoHttp = 0;
const kProtoWebsocket = 1;

// Decoder request.
const kInitDecoderReq = 0;
const kUninitDecoderReq = 1;
const kOpenDecoderReq = 2;
const kCloseDecoderReq = 3;
const kFeedDataReq = 4;
const kStartDecodingReq = 5;
const kPauseDecodingReq = 6;
const kSeekToReq = 7;

// Decoder response.
const kInitDecoderRsp = 0;
const kUninitDecoderRsp = 1;
const kOpenDecoderRsp = 2;
const kCloseDecoderRsp = 3;
const kVideoFrame = 4;
const kAudioFrame = 5;
const kStartDecodingRsp = 6;
const kPauseDecodingRsp = 7;
const kDecodeFinishedEvt = 8;
const kRequestDataEvt = 9;
const kSeekToRsp = 10;

class Logger {
    constructor(module) {
        this.module = module;
    }

    log(line) {
        console.log(`[${this.currentTimeStr()}][${this.module}] ${line}`);
    }

    logError(line) {
        console.error(`[${this.currentTimeStr()}][${this.module}][ER] ${line}`);
    }

    logInfo(line) {
        console.log(`[${this.currentTimeStr()}][${this.module}][IF] ${line}`);
    }

    logDebug(line) {
        console.debug(`[${this.currentTimeStr()}][${this.module}][DT] ${line}`);
    }

    currentTimeStr() {
        const now = new Date();
        const year = now.getFullYear();
        const month = now.getMonth() + 1;
        const day = now.getDate();
        const hour = now.getHours();
        const min = now.getMinutes();
        const sec = now.getSeconds();
        const ms = now.getMilliseconds();
        return `${year}-${month}-${day} ${hour}:${min}:${sec}:${ms}`;
    }
}