├── .gitignore ├── video-example.png ├── conf └── conf.go ├── go.mod ├── serializer ├── rtsptrans.go └── serializer.go ├── main.go ├── api ├── api.go └── rtsp.go ├── html ├── view-stream.html ├── rtsp-relay.html └── jsmpeg.min.js ├── Dockerfile ├── LICENSE ├── server └── router.go ├── README.md ├── util └── logger.go ├── service ├── rtsptrans.go └── wsservice.go └── go.sum /.gitignore: -------------------------------------------------------------------------------- 1 | /.idea 2 | -------------------------------------------------------------------------------- /video-example.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/wanghaoxi3000/gin-rtsp/HEAD/video-example.png -------------------------------------------------------------------------------- /conf/conf.go: -------------------------------------------------------------------------------- 1 | package conf 2 | 3 | import ( 4 | "ginrtsp/util" 5 | "os" 6 | 7 | "github.com/joho/godotenv" 8 | ) 9 | 10 | // Init 初始化配置项 11 | func Init() { 12 | // 从本地读取环境变量 13 | godotenv.Load() 14 | 15 | if os.Getenv("GIN_MODE") == "release" { 16 | util.BuildLogger("info") 17 | } else { 18 | util.BuildLogger("debug") 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module ginrtsp 2 | 3 | go 1.13 4 | 5 | require ( 6 | github.com/gin-contrib/cors v1.6.0 7 | github.com/gin-gonic/gin v1.9.1 8 | github.com/gorilla/websocket v1.4.1 9 | github.com/joho/godotenv v1.3.0 10 | github.com/satori/go.uuid v1.2.0 11 | gopkg.in/go-playground/assert.v1 v1.2.1 // indirect 12 | gopkg.in/go-playground/validator.v8 v8.18.2 13 | ) 14 | -------------------------------------------------------------------------------- /serializer/rtsptrans.go: -------------------------------------------------------------------------------- 1 | package serializer 2 | 3 | // RTSPPlayPath RTSP play 信息序列化器 4 | type RTSPPlayPath struct { 5 | Path string `json:"path"` 6 | } 7 | 8 | // BuildRTSPPlayPathResponse 序列化 RTSP play 响应 9 | func BuildRTSPPlayPathResponse(path string) *Response { 10 | return &Response{ 11 | Data: &RTSPPlayPath{ 12 | Path: path, 13 | }, 14 | Msg: "success", 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "ginrtsp/conf" 6 | "ginrtsp/server" 7 | "ginrtsp/service" 8 | "os" 9 | ) 10 | 11 | func main() { 12 | // 从配置文件读取配置, 初始化各个模块 13 | conf.Init() 14 | port := "3000" 15 | if len(os.Getenv("RTSP_PORT")) > 0 { 16 | port = os.Getenv("RTSP_PORT") 17 | } 18 | port = ":" + port 19 | 20 | fmt.Println("RTSP_PORT", port) 21 | 22 | // 装载路由 23 | r := server.NewRouter() 24 | 25 | go service.WsManager.Start() 26 | r.Run(port) 27 | } 28 | -------------------------------------------------------------------------------- /serializer/serializer.go: -------------------------------------------------------------------------------- 1 | package serializer 2 | 3 | import ( 4 | "ginrtsp/util" 5 | 6 | "github.com/gin-gonic/gin" 7 | ) 8 | 9 | // Response 基础序列化器 10 | type Response struct { 11 | Code int `json:"code"` 12 | Data interface{} `json:"data,omitempty"` 13 | Msg string `json:"msg"` 14 | Error string `json:"error,omitempty"` 15 | } 16 | 17 | // Err 通用错误处理 18 | func Err(errCode int, msg string, err error) *Response { 19 | res := Response{ 20 | Code: errCode, 21 | Msg: msg, 22 | } 23 | 24 | if err != nil { 25 | util.Log().Error(err.Error()) 26 | // 生产环境隐藏底层报错 27 | if gin.Mode() != gin.ReleaseMode { 28 | res.Error = err.Error() 29 | } 30 | } 31 | return &res 32 | } 33 | -------------------------------------------------------------------------------- /api/api.go: -------------------------------------------------------------------------------- 1 | package api 2 | 3 | import ( 4 | "encoding/json" 5 | "fmt" 6 | "ginrtsp/serializer" 7 | 8 | "github.com/gin-gonic/gin" 9 | "gopkg.in/go-playground/validator.v8" 10 | ) 11 | 12 | // errorRequest 请求数据错误处理 13 | func errorRequest(err error) *serializer.Response { 14 | if ve, ok := err.(validator.ValidationErrors); ok { 15 | for _, e := range ve { 16 | return serializer.Err( 17 | 400, 18 | fmt.Sprintf("%s %s", e.Field, e.Tag), 19 | err, 20 | ) 21 | } 22 | } 23 | if _, ok := err.(*json.UnmarshalTypeError); ok { 24 | return serializer.Err(400, "JSON类型不匹配", err) 25 | } 26 | 27 | return serializer.Err(400, "参数错误", err) 28 | } 29 | 30 | // Ping 状态检查 31 | func Ping(c *gin.Context) { 32 | c.JSON(200, serializer.Response{ 33 | Code: 0, 34 | Msg: "Pong", 35 | }) 36 | } 37 | -------------------------------------------------------------------------------- /api/rtsp.go: -------------------------------------------------------------------------------- 1 | package api 2 | 3 | import ( 4 | "bufio" 5 | "ginrtsp/service" 6 | 7 | "github.com/gin-gonic/gin" 8 | ) 9 | 10 | // PlayRTSP 启动 FFMPEG 播放 RTSP 流 11 | func PlayRTSP(c *gin.Context) { 12 | srv := &service.RTSPTransSrv{} 13 | if err := c.ShouldBind(srv); err != nil { 14 | c.JSON(400, errorRequest(err)) 15 | return 16 | } 17 | 18 | ret := srv.Service() 19 | c.JSON(ret.Code, ret) 20 | } 21 | 22 | // Mpeg1Video 接收 mpeg1vido 数据流 23 | func Mpeg1Video(c *gin.Context) { 24 | bodyReader := bufio.NewReader(c.Request.Body) 25 | 26 | for { 27 | data, err := bodyReader.ReadBytes('\n') 28 | if err != nil { 29 | break 30 | } 31 | 32 | service.WsManager.Groupbroadcast(c.Param("channel"), data) 33 | } 34 | } 35 | 36 | // Wsplay 通过 websocket 播放 mpegts 数据 37 | func Wsplay(c *gin.Context) { 38 | service.WsManager.RegisterClient(c) 39 | } 40 | -------------------------------------------------------------------------------- /html/view-stream.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | JSMpeg Stream Client 5 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 29 | 30 | -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | FROM golang:1.20-alpine as builder 2 | 3 | COPY . /app 4 | WORKDIR /app 5 | ENV CGO_ENABLED=0 6 | RUN go env -w GOPROXY=https://goproxy.cn,direct \ 7 | && go build -o gin-rtsp 8 | 9 | 10 | FROM ubuntu:18.04 11 | 12 | ENV TZ=Asia/Shanghai 13 | ENV LANG=en_US.UTF-8 14 | ENV LOG_LEVEL=info 15 | 16 | RUN sed -i 's/archive.ubuntu.com/mirrors.aliyun.com/g' /etc/apt/sources.list \ 17 | && sed -i 's/security.ubuntu.com/mirrors.aliyun.com/g' /etc/apt/sources.list \ 18 | && apt-get update \ 19 | && ln -snf /usr/share/zoneinfo/${TZ} /etc/localtime && echo ${TZ} > /etc/timezone \ 20 | && apt-get install -y locales tzdata ffmpeg \ 21 | && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8 \ 22 | && apt-get clean && apt-get autoclean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* 23 | 24 | 25 | COPY --from=builder /app/gin-rtsp /usr/local/bin/gin-rtsp 26 | 27 | EXPOSE 3000 28 | 29 | ENTRYPOINT [ "/usr/local/bin/gin-rtsp" ] 30 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2019 wanghaoxi3000 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /server/router.go: -------------------------------------------------------------------------------- 1 | package server 2 | 3 | import ( 4 | "ginrtsp/api" 5 | "net/http" 6 | "os" 7 | 8 | "github.com/gin-contrib/cors" 9 | 10 | "github.com/gin-gonic/gin" 11 | ) 12 | 13 | // 处理跨域请求,支持options访问 14 | func Cors() gin.HandlerFunc { 15 | return func(c *gin.Context) { 16 | method := c.Request.Method 17 | 18 | c.Header("Access-Control-Allow-Origin", "*") 19 | c.Header("Access-Control-Allow-Headers", "Content-Type,AccessToken,X-CSRF-Token, Authorization, Token") 20 | c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS") 21 | c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Content-Type") 22 | c.Header("Access-Control-Allow-Credentials", "true") 23 | 24 | //放行所有OPTIONS方法 25 | if method == "OPTIONS" { 26 | c.AbortWithStatus(http.StatusNoContent) 27 | } 28 | // 处理请求 29 | c.Next() 30 | } 31 | } 32 | 33 | // NewRouter Gin 路由配置 34 | func NewRouter() *gin.Engine { 35 | r := gin.Default() 36 | // 添加跨域请求处理 37 | r.Use(cors.Default()) 38 | 39 | if os.Getenv("RTSP_CORS") == "true" { 40 | r.Use(Cors()) 41 | } 42 | 43 | // 路由 44 | r.GET("/ping", api.Ping) 45 | route := r.Group("/stream") 46 | { 47 | route.POST("/play", api.PlayRTSP) 48 | route.POST("/upload/:channel", api.Mpeg1Video) 49 | route.GET("/live/:channel", api.Wsplay) 50 | } 51 | 52 | return r 53 | } 54 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # gin-rtsp 2 | 基于 [**JSMpeg**](https://github.com/phoboslab/jsmpeg/) 的原理，在HTML页面上直接播放RTSP视频流，使用Gin框架开发。 3 | 4 | 5 | ## 主要模块 6 | - API 接口：接收FFMPEG的推流数据和客户端的HTTP请求，将客户端需要播放的RTSP地址转换为一个对应的WebSocket地址，客户端通过这个WebSocket地址便可以直接播放视频，为了及时释放不再观看的视频流，这里设计为客户端播放时需要在每隔60秒的时间里循环请求这个接口，超过指定时间没有收到请求的话后台便会关闭这个视频流。 7 | 8 | - FFMPEG 视频转换：收到前端的请求后，启动一个Goroutine调用系统的FFMPEG命令转换指定的RTSP视频流并推送到后台对应的接口，自动结束已超时转换任务。 9 | 10 | - WebSocket Manager：管理WebSocket客户端，将请求同一WebSocket地址的客户端添加到一个Group中，向各个Group广播对应的RTSP视频流，删除Group中已断开连接的客户端，释放空闲的Group。 11 | 12 | 13 | ## 注意 14 | - 需要摄像头的码流为H264码流 15 | 16 | 17 | ## 编译 18 | **项目需要运行在安装有FFMPEG程序的环境中。** 19 | 20 | ### Docker 21 | Dockerfile 中已经封装好了需要的环境，可以使用Docker build后，以Docker的方式运行。 22 | ``` 23 | $ docker build -t ginrtsp . 24 | $ docker run -td -p 3000:3000 ginrtsp 25 | ``` 26 | 27 | ### 本地编译 28 | 29 | **linux** 30 | 31 | ```shell 32 | go build -o ./bin/linux/rtsp-relay 33 | ``` 34 | 35 | **windows** 36 | 37 | ```shell 38 | go build -o ./bin/windows/rtsp-relay.exe 39 | ``` 40 | 41 | ### 环境变量 42 | - RTSP_PORT 默认为3000 43 | - RTSP_CORS 默认为false, 设置为true时跨域，其他不跨域 44 | 45 | 46 | ## 测试 47 | ### 使用内置的FFMPEG转换 48 | 将需要播放的RTSP流地址提交到 /stream/play 接口，例如： 49 | ``` 50 | POST /stream/play 51 | { 52 | "url": "rtsp://admin:password@192.168.3.10:554/cam/realmonitor?channel=1&subtype=0" 53 | } 54 | ``` 55 | 56 | 后台可以正常转换此RTSP地址时便会返回一个对应的地址，例如： 57 | ``` 58 | { 59 | "code": 0, 60 | "data": { 61 | "path": "/stream/live/5b96bff4-bdb2-3edb-9d6e-f96eda03da56" 62 | }, 63 | "msg": "success" 64 | } 65 | ``` 66 | 67 | 编辑`html`文件夹下view-stream.html文件，将script部分的url修改为此地址，在浏览器中打开，便可以看到视频了。 68 | 69 | ### 手动运行FFMPEG 70 | 由于后台转换RTSP的进程在超过60秒没有请求后便会停止，也可以通过手动运行ffmpeg命令，来更方便地在测试状态下查看视频。 71 | ``` 72 | ffmpeg -rtsp_transport tcp -re -i 'rtsp://admin:password@192.168.3.10:554/cam/realmonitor?channel=1&subtype=0' -q 0 -f mpegts -c:v mpeg1video -an -s 960x540 http://127.0.0.1:3000/stream/upload/test 73 | ``` 74 | 75 | 通过如上命令，运行之后在view-stream.html文件的url中填入对应的地址为`/stream/live/test`，在浏览器中打开查看视频。 76 | 77 | 78 | ### 显示效果 79 | 80 | ![](./video-example.png) 81 | 82 | 83 | ## 参考 84 | [JSMpeg – MPEG1 Video & MP2 Audio Decoder in JavaScript](https://github.com/phoboslab/jsmpeg/) 85 | -------------------------------------------------------------------------------- /html/rtsp-relay.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | JSMpeg Stream Client 5 | 10 | 11 | 12 | 13 | 14 |
15 |
16 | 17 | 75 | 76 | -------------------------------------------------------------------------------- /util/logger.go: -------------------------------------------------------------------------------- 1 | package util 2 | 3 | import ( 4 | "fmt" 5 | "os" 6 | "time" 7 | ) 8 | 9 | const ( 10 | // LevelError 错误 11 | LevelError = iota 12 | // LevelWarning 警告 13 | LevelWarning 14 | // LevelInformational 提示 15 | LevelInformational 16 | // LevelDebug 除错 17 | LevelDebug 18 | ) 19 | 20 | var logger *Logger 21 | 22 | // Logger 日志 23 | type Logger struct { 24 | level int 25 | } 26 | 27 | // Println 打印 28 | func (ll *Logger) Println(msg string) { 29 | fmt.Printf("%s %s\n", time.Now().Format("2006-01-02 15:04:05"), msg) 30 | } 31 | 32 | // Panic 极端错误 33 | func (ll *Logger) Panic(format string, v ...interface{}) { 34 | if LevelError > ll.level { 35 | return 36 | } 37 | msg := fmt.Sprintf("[Panic] "+format, v...) 38 | ll.Println(msg) 39 | os.Exit(0) 40 | } 41 | 42 | // Error 错误 43 | func (ll *Logger) Error(format string, v ...interface{}) { 44 | if LevelError > ll.level { 45 | return 46 | } 47 | msg := fmt.Sprintf("[E] "+format, v...) 48 | ll.Println(msg) 49 | } 50 | 51 | // Warning 警告 52 | func (ll *Logger) Warning(format string, v ...interface{}) { 53 | if LevelWarning > ll.level { 54 | return 55 | } 56 | msg := fmt.Sprintf("[W] "+format, v...) 57 | ll.Println(msg) 58 | } 59 | 60 | // Info 信息 61 | func (ll *Logger) Info(format string, v ...interface{}) { 62 | if LevelInformational > ll.level { 63 | return 64 | } 65 | msg := fmt.Sprintf("[I] "+format, v...) 66 | ll.Println(msg) 67 | } 68 | 69 | // Debug 校验 70 | func (ll *Logger) Debug(format string, v ...interface{}) { 71 | if LevelDebug > ll.level { 72 | return 73 | } 74 | msg := fmt.Sprintf("[D] "+format, v...) 75 | ll.Println(msg) 76 | } 77 | 78 | // BuildLogger 构建logger 79 | func BuildLogger(level string) { 80 | intLevel := LevelError 81 | switch level { 82 | case "error": 83 | intLevel = LevelError 84 | case "warning": 85 | intLevel = LevelWarning 86 | case "info": 87 | intLevel = LevelInformational 88 | case "debug": 89 | intLevel = LevelDebug 90 | } 91 | l := Logger{ 92 | level: intLevel, 93 | } 94 | logger = &l 95 | } 96 | 97 | // Log 返回日志对象 98 | func Log() *Logger { 99 | if logger == nil { 100 | l := Logger{ 101 | level: LevelDebug, 102 | } 103 | logger = &l 104 | } 105 | return logger 106 | } 107 | -------------------------------------------------------------------------------- /service/rtsptrans.go: -------------------------------------------------------------------------------- 1 | package service 2 | 3 | import ( 4 | "errors" 5 | "fmt" 6 | "ginrtsp/serializer" 7 | "ginrtsp/util" 8 | "io" 9 | "os" 10 | "os/exec" 11 | "strings" 12 | "sync" 13 | 14 | "time" 15 | 16 | uuid "github.com/satori/go.uuid" 17 | ) 18 | 19 | // RTSPTransSrv RTSP 转换服务 struct 20 | type RTSPTransSrv struct { 21 | URL string `form:"url" json:"url" binding:"required,min=1"` 22 | } 23 | 24 | // processMap FFMPEG 进程刷新通道，未在指定时间刷新的流将会被关闭 25 | var processMap sync.Map 26 | 27 | // Service RTSP 转换服务 28 | func (service *RTSPTransSrv) Service() *serializer.Response { 29 | simpleString := strings.Replace(service.URL, "//", "/", 1) 30 | splitList := strings.Split(simpleString, "/") 31 | 32 | if splitList[0] != "rtsp:" && len(splitList) < 2 { 33 | return &serializer.Response{ 34 | Code: 400, 35 | Msg: "不是有效的 RTSP 地址", 36 | } 37 | } 38 | 39 | // 多个客户端需要播放相同的RTSP流地址时，保证返回WebSocket地址相同 40 | // 为了支持同一IP多路摄像头，使用simpleString作为hash参数，而不是splitList[1] 41 | processCh := uuid.NewV3(uuid.NamespaceURL, simpleString).String() 42 | if ch, ok := processMap.Load(processCh); ok { 43 | *ch.(*chan struct{}) <- struct{}{} 44 | } else { 45 | reflush := make(chan struct{}) 46 | if cmd, stdin, err := runFFMPEG(service.URL, processCh); err != nil { 47 | return serializer.Err(400, err.Error(), err) 48 | } else { 49 | go keepFFMPEG(cmd, stdin, &reflush, processCh) 50 | } 51 | } 52 | 53 | playURL := fmt.Sprintf("/stream/live/%s", processCh) 54 | return serializer.BuildRTSPPlayPathResponse(playURL) 55 | } 56 | 57 | func keepFFMPEG(cmd *exec.Cmd, stdin io.WriteCloser, ch *chan struct{}, playCh string) { 58 | processMap.Store(playCh, ch) 59 | defer func() { 60 | processMap.Delete(playCh) 61 | close(*ch) 62 | _ = stdin.Close() 63 | util.Log().Info("Stop translate rtsp id %v", playCh) 64 | }() 65 | 66 | for { 67 | select { 68 | case <-*ch: 69 | util.Log().Info("Reflush channel %s", playCh) 70 | 71 | case <-time.After(60 * time.Second): 72 | _, _ = stdin.Write([]byte("q")) 73 | err := cmd.Wait() 74 | if err != nil { 75 | util.Log().Error("Run ffmpeg err %v", err.Error()) 76 | } 77 | return 78 | } 79 | } 80 | } 81 | 82 | func runFFMPEG(rtsp string, playCh string) (*exec.Cmd, io.WriteCloser, error) { 83 | port := "3000" 84 | if len(os.Getenv("RTSP_PORT")) > 0 { 85 | port = os.Getenv("RTSP_PORT") 86 | } 87 | params := []string{ 88 | "-rtsp_transport", 89 | "tcp", 90 | "-re", 91 | "-stimeout", 92 | "5000000", 93 | "-i", 94 | rtsp, 95 | "-q", 96 | "5", 97 | "-f", 98 | "mpegts", 99 | "-fflags", 100 | "nobuffer", 101 | "-c:v", 102 | "mpeg1video", 103 | "-an", 104 | "-s", 105 | "960x540", 106 | fmt.Sprintf("http://127.0.0.1:%s/stream/upload/%s", port, playCh), 107 | } 108 | 109 | util.Log().Debug("FFmpeg cmd: ffmpeg %v", strings.Join(params, " ")) 110 | cmd := exec.Command("ffmpeg", params...) 111 | cmd.Stdout = nil 112 | cmd.Stderr = nil 113 | stdin, err := cmd.StdinPipe() 114 | if err != nil { 115 | util.Log().Error("Get ffmpeg stdin err:%v", err.Error()) 116 | return nil, nil, errors.New("拉流进程启动失败") 117 | } 118 | 119 | err = cmd.Start() 120 | if err != nil { 121 | util.Log().Info("Start ffmpeg err: %v", err.Error()) 122 | return nil, nil, errors.New("打开摄像头视频流失败") 123 | } 124 | util.Log().Info("Translate rtsp %v to %v", rtsp, playCh) 125 | return cmd, stdin, nil 126 | } 127 | -------------------------------------------------------------------------------- /service/wsservice.go: -------------------------------------------------------------------------------- 1 | package service 2 | 3 | import ( 4 | "ginrtsp/util" 5 | "net/http" 6 | 7 | "github.com/gin-gonic/gin" 8 | "github.com/gorilla/websocket" 9 | uuid "github.com/satori/go.uuid" 10 | ) 11 | 12 | // WsManager WebSocket 管理器 13 | var WsManager = clientManager{ 14 | clientGroup: make(map[string]map[string]*wsClient), 15 | register: make(chan *wsClient), 16 | unRegister: make(chan *wsClient), 17 | broadcast: make(chan *boradcastData, 10), 18 | } 19 | 20 | // ClientManager websocket client Manager struct 21 | type clientManager struct { 22 | clientGroup map[string]map[string]*wsClient 23 | register chan *wsClient 24 | unRegister chan *wsClient 25 | broadcast chan *boradcastData 26 | } 27 | 28 | // boradcastData 广播数据 29 | type boradcastData struct { 30 | GroupID string 31 | Data []byte 32 | } 33 | 34 | // wsClient Websocket 客户端 35 | type wsClient struct { 36 | ID string 37 | Group string 38 | Socket *websocket.Conn 39 | Send chan []byte 40 | } 41 | 42 | func (c *wsClient) Read() { 43 | defer func() { 44 | WsManager.unRegister <- c 45 | c.Socket.Close() 46 | }() 47 | 48 | for { 49 | _, _, err := c.Socket.ReadMessage() 50 | if err != nil { 51 | break 52 | } 53 | } 54 | } 55 | 56 | func (c *wsClient) Write() { 57 | defer func() { 58 | c.Socket.Close() 59 | }() 60 | 61 | for { 62 | select { 63 | case message, ok := <-c.Send: 64 | if !ok { 65 | c.Socket.WriteMessage(websocket.CloseMessage, []byte{}) 66 | return 67 | } 68 | 69 | c.Socket.WriteMessage(websocket.BinaryMessage, message) 70 | } 71 | } 72 | } 73 | 74 | // Start 启动 websocket 管理器 75 | func (manager *clientManager) Start() { 76 | util.Log().Info("Websocket manage start") 77 | for { 78 | select { 79 | case client := <-manager.register: 80 | util.Log().Info("Websocket client %s connect", client.ID) 81 | if manager.clientGroup[client.Group] == nil { 82 | manager.clientGroup[client.Group] = make(map[string]*wsClient) 83 | } 84 | manager.clientGroup[client.Group][client.ID] = client 85 | util.Log().Info("Register client %s to %s group success", client.ID, client.Group) 86 | 87 | case client := <-manager.unRegister: 88 | util.Log().Info("Unregister websocket client %s", client.ID) 89 | if _, ok := manager.clientGroup[client.Group]; ok { 90 | if _, ok := manager.clientGroup[client.Group][client.ID]; ok { 91 | close(client.Send) 92 | delete(manager.clientGroup[client.Group], client.ID) 93 | util.Log().Info("Unregister websocket client %s from group %s success", client.ID, client.Group) 94 | 95 | if len(manager.clientGroup[client.Group]) == 0 { 96 | util.Log().Info("Clear no client group %s", client.Group) 97 | delete(manager.clientGroup, client.Group) 98 | } 99 | } 100 | } 101 | 102 | case data := <-manager.broadcast: 103 | if groupMap, ok := manager.clientGroup[data.GroupID]; ok { 104 | for _, conn := range groupMap { 105 | conn.Send <- data.Data 106 | } 107 | } 108 | } 109 | } 110 | } 111 | 112 | // RegisterClient 向 manage 中注册 client 113 | func (manager *clientManager) RegisterClient(ctx *gin.Context) { 114 | upgrader := websocket.Upgrader{ 115 | // cross origin domain 116 | CheckOrigin: func(r *http.Request) bool { 117 | return true 118 | }, 119 | // 处理 Sec-WebSocket-Protocol Header 120 | Subprotocols: []string{ctx.GetHeader("Sec-WebSocket-Protocol")}, 121 | } 122 | 123 | conn, err := upgrader.Upgrade(ctx.Writer, ctx.Request, nil) 124 | if err != nil { 125 | util.Log().Error("websocket client connect %v error", ctx.Param("channel")) 126 | return 127 | } 128 | 129 | client := &wsClient{ 130 | ID: uuid.NewV4().String(), 131 | Group: ctx.Param("channel"), 132 | Socket: conn, 133 | Send: make(chan []byte, 1024), 134 | } 135 | 136 | manager.register <- client 137 | go client.Read() 138 | go client.Write() 139 | } 140 | 141 | // Groupbroadcast 向指定的 Group 广播 142 | func (manager *clientManager) Groupbroadcast(group string, message []byte) { 143 | data := &boradcastData{ 144 | GroupID: group, 145 | Data: message, 146 | } 147 | manager.broadcast <- data 148 | } 149 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM= 2 | github.com/bytedance/sonic v1.9.1/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U= 3 | github.com/bytedance/sonic v1.10.0-rc/go.mod h1:ElCzW+ufi8qKqNW0FY314xriJhyJhuoJ3gFZdAHF7NM= 4 | github.com/bytedance/sonic v1.11.2 h1:ywfwo0a/3j9HR8wsYGWsIWl2mvRsI950HyoxiBERw5A= 5 | github.com/bytedance/sonic v1.11.2/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4= 6 | github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY= 7 | github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk= 8 | github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d h1:77cEq6EriyTZ0g/qfRdp61a3Uu/AWrgIq2s0ClJV1g0= 9 | github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d/go.mod h1:8EPpVsBuRksnlj1mLy4AWzRNQYxauNi62uWcE3to6eA= 10 | github.com/chenzhuoyu/iasm v0.9.0/go.mod h1:Xjy2NpN3h7aUqeqM+woSuuvxmIe6+DDsiNLIrkAmYog= 11 | github.com/chenzhuoyu/iasm v0.9.1 h1:tUHQJXo3NhBqw6s33wkGn9SP3bvrWLdlVIJ3hQBL7P0= 12 | github.com/chenzhuoyu/iasm v0.9.1/go.mod h1:Xjy2NpN3h7aUqeqM+woSuuvxmIe6+DDsiNLIrkAmYog= 13 | github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= 14 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 15 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 16 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 17 | github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA= 18 | github.com/gabriel-vasile/mimetype v1.4.3 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h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8= 101 | golang.org/x/arch v0.3.0/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8= 102 | golang.org/x/arch v0.7.0 h1:pskyeJh/3AmoQ8CPE95vxHLqp1G1GfGNXTmcl9NEKTc= 103 | golang.org/x/arch v0.7.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys= 104 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 105 | golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= 106 | golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU= 107 | golang.org/x/crypto v0.9.0/go.mod h1:yrmDGqONDYtNj3tH8X9dzUun2m2lzPa9ngI6/RUPGR0= 108 | golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4= 109 | golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU= 110 | golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA= 111 | golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs= 112 | golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= 113 | golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= 114 | golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 115 | golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= 116 | golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= 117 | golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs= 118 | golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc= 119 | golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg= 120 | golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE= 121 | golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44= 122 | golang.org/x/net v0.22.0 h1:9sGLhx7iRIHEiX0oAJ3MRZMUCElJgy7Br1nO+AMN3Tc= 123 | golang.org/x/net v0.22.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg= 124 | golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 125 | golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 126 | golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 127 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 128 | golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 129 | golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 130 | golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 131 | golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 132 | golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 133 | golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 134 | golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 135 | golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 136 | golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 137 | golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= 138 | golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4= 139 | golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= 140 | golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= 141 | golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= 142 | golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k= 143 | golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U= 144 | golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo= 145 | golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U= 146 | golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk= 147 | golang.org/x/term v0.18.0/go.mod h1:ILwASektA3OnRv7amZ1xhE/KTR+u50pbXfZ03+6Nx58= 148 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= 149 | golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= 150 | golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= 151 | golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ= 152 | golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= 153 | golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= 154 | golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= 155 | golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE= 156 | golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ= 157 | golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= 158 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 159 | golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= 160 | golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= 161 | golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= 162 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 163 | golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4= 164 | golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 165 | google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= 166 | google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I= 167 | google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI= 168 | google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos= 169 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 170 | gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 171 | gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= 172 | gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= 173 | gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= 174 | gopkg.in/go-playground/assert.v1 v1.2.1 h1:xoYuJVE7KT85PYWrN730RguIQO0ePzVRfFMXadIrXTM= 175 | gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE= 176 | gopkg.in/go-playground/validator.v8 v8.18.2 h1:lFB4DoMU6B626w8ny76MV7VX6W2VHct2GVOI3xgiMrQ= 177 | gopkg.in/go-playground/validator.v8 v8.18.2/go.mod h1:RX2a/7Ha8BgOhfk7j780h4/u/RRjR0eouCJSH80/M2Y= 178 | gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 179 | gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= 180 | gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 181 | nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50= 182 | rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4= 183 | -------------------------------------------------------------------------------- /html/jsmpeg.min.js: -------------------------------------------------------------------------------- 1 | var JSMpeg={Player:null,VideoElement:null,BitBuffer:null,Source:{},Demuxer:{},Decoder:{},Renderer:{},AudioOutput:{},Now:function(){return window.performance?window.performance.now()/1e3:Date.now()/1e3},CreateVideoElements:function(){var elements=document.querySelectorAll(".jsmpeg");for(var i=0;i'+''+''+"";VideoElement.UNMUTE_BUTTON=''+''+''+''+''+""+"";return VideoElement}();JSMpeg.Player=function(){"use strict";var Player=function(url,options){this.options=options||{};if(options.source){this.source=new options.source(url,options);options.streaming=!!this.source.streaming}else if(url.match(/^wss?:\/\//)){this.source=new JSMpeg.Source.WebSocket(url,options);options.streaming=true}else if(options.progressive!==false){this.source=new JSMpeg.Source.AjaxProgressive(url,options);options.streaming=false}else{this.source=new JSMpeg.Source.Ajax(url,options);options.streaming=false}this.maxAudioLag=options.maxAudioLag||.25;this.loop=options.loop!==false;this.autoplay=!!options.autoplay||options.streaming;this.demuxer=new JSMpeg.Demuxer.TS(options);this.source.connect(this.demuxer);if(!options.disableWebAssembly&&JSMpeg.WASMModule.IsSupported()){this.wasmModule=new JSMpeg.WASMModule;options.wasmModule=this.wasmModule}if(options.video!==false){this.video=options.wasmModule?new JSMpeg.Decoder.MPEG1VideoWASM(options):new JSMpeg.Decoder.MPEG1Video(options);this.renderer=!options.disableGl&&JSMpeg.Renderer.WebGL.IsSupported()?new JSMpeg.Renderer.WebGL(options):new JSMpeg.Renderer.Canvas2D(options);this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.VIDEO_1,this.video);this.video.connect(this.renderer)}if(options.audio!==false&&JSMpeg.AudioOutput.WebAudio.IsSupported()){this.audio=options.wasmModule?new JSMpeg.Decoder.MP2AudioWASM(options):new JSMpeg.Decoder.MP2Audio(options);this.audioOut=new JSMpeg.AudioOutput.WebAudio(options);this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.AUDIO_1,this.audio);this.audio.connect(this.audioOut)}Object.defineProperty(this,"currentTime",{get:this.getCurrentTime,set:this.setCurrentTime});Object.defineProperty(this,"volume",{get:this.getVolume,set:this.setVolume});this.paused=true;this.unpauseOnShow=false;if(options.pauseWhenHidden!==false){document.addEventListener("visibilitychange",this.showHide.bind(this))}if(this.wasmModule){if(JSMpeg.WASM_BINARY_INLINED){var wasm=JSMpeg.Base64ToArrayBuffer(JSMpeg.WASM_BINARY_INLINED);this.wasmModule.loadFromBuffer(wasm,this.startLoading.bind(this))}else{this.wasmModule.loadFromFile("jsmpeg.wasm",this.startLoading.bind(this))}}else{this.startLoading()}};Player.prototype.startLoading=function(){this.source.start();if(this.autoplay){this.play()}};Player.prototype.showHide=function(ev){if(document.visibilityState==="hidden"){this.unpauseOnShow=this.wantsToPlay;this.pause()}else if(this.unpauseOnShow){this.play()}};Player.prototype.play=function(ev){if(this.animationId){return}this.animationId=requestAnimationFrame(this.update.bind(this));this.wantsToPlay=true;this.paused=false};Player.prototype.pause=function(ev){if(this.paused){return}cancelAnimationFrame(this.animationId);this.animationId=null;this.wantsToPlay=false;this.isPlaying=false;this.paused=true;if(this.audio&&this.audio.canPlay){this.audioOut.stop();this.seek(this.currentTime)}if(this.options.onPause){this.options.onPause(this)}};Player.prototype.getVolume=function(){return this.audioOut?this.audioOut.volume:0};Player.prototype.setVolume=function(volume){if(this.audioOut){this.audioOut.volume=volume}};Player.prototype.stop=function(ev){this.pause();this.seek(0);if(this.video&&this.options.decodeFirstFrame!==false){this.video.decode()}};Player.prototype.destroy=function(){this.pause();this.source.destroy();this.video&&this.video.destroy();this.renderer&&this.renderer.destroy();this.audio&&this.audio.destroy();this.audioOut&&this.audioOut.destroy()};Player.prototype.seek=function(time){var startOffset=this.audio&&this.audio.canPlay?this.audio.startTime:this.video.startTime;if(this.video){this.video.seek(time+startOffset)}if(this.audio){this.audio.seek(time+startOffset)}this.startTime=JSMpeg.Now()-time};Player.prototype.getCurrentTime=function(){return this.audio&&this.audio.canPlay?this.audio.currentTime-this.audio.startTime:this.video.currentTime-this.video.startTime};Player.prototype.setCurrentTime=function(time){this.seek(time)};Player.prototype.update=function(){this.animationId=requestAnimationFrame(this.update.bind(this));if(!this.source.established){if(this.renderer){this.renderer.renderProgress(this.source.progress)}return}if(!this.isPlaying){this.isPlaying=true;this.startTime=JSMpeg.Now()-this.currentTime;if(this.options.onPlay){this.options.onPlay(this)}}if(this.options.streaming){this.updateForStreaming()}else{this.updateForStaticFile()}};Player.prototype.updateForStreaming=function(){if(this.video){this.video.decode()}if(this.audio){var decoded=false;do{if(this.audioOut.enqueuedTime>this.maxAudioLag){this.audioOut.resetEnqueuedTime();this.audioOut.enabled=false}decoded=this.audio.decode()}while(decoded);this.audioOut.enabled=true}};Player.prototype.nextFrame=function(){if(this.source.established&&this.video){return this.video.decode()}return false};Player.prototype.updateForStaticFile=function(){var notEnoughData=false,headroom=0;if(this.audio&&this.audio.canPlay){while(!notEnoughData&&this.audio.decodedTime-this.audio.currentTime<.25){notEnoughData=!this.audio.decode()}if(this.video&&this.video.currentTime0){if(lateTime>frameTime*2){this.startTime+=lateTime}notEnoughData=!this.video.decode()}headroom=this.demuxer.currentTime-targetTime}this.source.resume(headroom);if(notEnoughData&&this.source.completed){if(this.loop){this.seek(0)}else{this.pause();if(this.options.onEnded){this.options.onEnded(this)}}}else if(notEnoughData&&this.options.onStalled){this.options.onStalled(this)}};return Player}();JSMpeg.BitBuffer=function(){"use strict";var BitBuffer=function(bufferOrLength,mode){if(typeof bufferOrLength==="object"){this.bytes=bufferOrLength instanceof Uint8Array?bufferOrLength:new Uint8Array(bufferOrLength);this.byteLength=this.bytes.length}else{this.bytes=new Uint8Array(bufferOrLength||1024*1024);this.byteLength=0}this.mode=mode||BitBuffer.MODE.EXPAND;this.index=0};BitBuffer.prototype.resize=function(size){var newBytes=new Uint8Array(size);if(this.byteLength!==0){this.byteLength=Math.min(this.byteLength,size);newBytes.set(this.bytes,0,this.byteLength)}this.bytes=newBytes;this.index=Math.min(this.index,this.byteLength<<3)};BitBuffer.prototype.evict=function(sizeNeeded){var bytePos=this.index>>3,available=this.bytes.length-this.byteLength;if(this.index===this.byteLength<<3||sizeNeeded>available+bytePos){this.byteLength=0;this.index=0;return}else if(bytePos===0){return}if(this.bytes.copyWithin){this.bytes.copyWithin(0,bytePos,this.byteLength)}else{this.bytes.set(this.bytes.subarray(bytePos,this.byteLength))}this.byteLength=this.byteLength-bytePos;this.index-=bytePos<<3;return};BitBuffer.prototype.write=function(buffers){var isArrayOfBuffers=typeof buffers[0]==="object",totalLength=0,available=this.bytes.length-this.byteLength;if(isArrayOfBuffers){var totalLength=0;for(var i=0;iavailable){if(this.mode===BitBuffer.MODE.EXPAND){var newSize=Math.max(this.bytes.length*2,totalLength-available);this.resize(newSize)}else{this.evict(totalLength)}}if(isArrayOfBuffers){for(var i=0;i>3;i>3;return i>=this.byteLength||this.bytes[i]==0&&this.bytes[i+1]==0&&this.bytes[i+2]==1};BitBuffer.prototype.peek=function(count){var offset=this.index;var value=0;while(count){var currentByte=this.bytes[offset>>3],remaining=8-(offset&7),read=remaining>8-read;value=value<>shift;offset+=read;count-=read}return value};BitBuffer.prototype.read=function(count){var value=this.peek(count);this.index+=count;return value};BitBuffer.prototype.skip=function(count){return this.index+=count};BitBuffer.prototype.rewind=function(count){this.index=Math.max(this.index-count,0)};BitBuffer.prototype.has=function(count){return(this.byteLength<<3)-this.index>=count};BitBuffer.MODE={EVICT:1,EXPAND:2};return BitBuffer}();JSMpeg.Source.Ajax=function(){"use strict";var AjaxSource=function(url,options){this.url=url;this.destination=null;this.request=null;this.streaming=false;this.completed=false;this.established=false;this.progress=0;this.onEstablishedCallback=options.onSourceEstablished;this.onCompletedCallback=options.onSourceCompleted};AjaxSource.prototype.connect=function(destination){this.destination=destination};AjaxSource.prototype.start=function(){this.request=new XMLHttpRequest;this.request.onreadystatechange=function(){if(this.request.readyState===this.request.DONE&&this.request.status===200){this.onLoad(this.request.response)}}.bind(this);this.request.onprogress=this.onProgress.bind(this);this.request.open("GET",this.url);this.request.responseType="arraybuffer";this.request.send()};AjaxSource.prototype.resume=function(secondsHeadroom){};AjaxSource.prototype.destroy=function(){this.request.abort()};AjaxSource.prototype.onProgress=function(ev){this.progress=ev.loaded/ev.total};AjaxSource.prototype.onLoad=function(data){this.established=true;this.completed=true;this.progress=1;if(this.onEstablishedCallback){this.onEstablishedCallback(this)}if(this.onCompletedCallback){this.onCompletedCallback(this)}if(this.destination){this.destination.write(data)}};return AjaxSource}();JSMpeg.Source.Fetch=function(){"use strict";var FetchSource=function(url,options){this.url=url;this.destination=null;this.request=null;this.streaming=true;this.completed=false;this.established=false;this.progress=0;this.aborted=false;this.onEstablishedCallback=options.onSourceEstablished;this.onCompletedCallback=options.onSourceCompleted};FetchSource.prototype.connect=function(destination){this.destination=destination};FetchSource.prototype.start=function(){var params={method:"GET",headers:new Headers,cache:"default"};self.fetch(this.url,params).then(function(res){if(res.ok&&(res.status>=200&&res.status<=299)){this.progress=1;this.established=true;return this.pump(res.body.getReader())}else{}}.bind(this)).catch(function(err){throw err})};FetchSource.prototype.pump=function(reader){return reader.read().then(function(result){if(result.done){this.completed=true}else{if(this.aborted){return reader.cancel()}if(this.destination){this.destination.write(result.value.buffer)}return this.pump(reader)}}.bind(this)).catch(function(err){throw err})};FetchSource.prototype.resume=function(secondsHeadroom){};FetchSource.prototype.abort=function(){this.aborted=true};return FetchSource}();JSMpeg.Source.AjaxProgressive=function(){"use strict";var AjaxProgressiveSource=function(url,options){this.url=url;this.destination=null;this.request=null;this.streaming=false;this.completed=false;this.established=false;this.progress=0;this.fileSize=0;this.loadedSize=0;this.chunkSize=options.chunkSize||1024*1024;this.isLoading=false;this.loadStartTime=0;this.throttled=options.throttled!==false;this.aborted=false;this.onEstablishedCallback=options.onSourceEstablished;this.onCompletedCallback=options.onSourceCompleted};AjaxProgressiveSource.prototype.connect=function(destination){this.destination=destination};AjaxProgressiveSource.prototype.start=function(){this.request=new XMLHttpRequest;this.request.onreadystatechange=function(){if(this.request.readyState===this.request.DONE){this.fileSize=parseInt(this.request.getResponseHeader("Content-Length"));this.loadNextChunk()}}.bind(this);this.request.onprogress=this.onProgress.bind(this);this.request.open("HEAD",this.url);this.request.send()};AjaxProgressiveSource.prototype.resume=function(secondsHeadroom){if(this.isLoading||!this.throttled){return}var worstCaseLoadingTime=this.loadTime*8+2;if(worstCaseLoadingTime>secondsHeadroom){this.loadNextChunk()}};AjaxProgressiveSource.prototype.destroy=function(){this.request.abort();this.aborted=true};AjaxProgressiveSource.prototype.loadNextChunk=function(){var start=this.loadedSize,end=Math.min(this.loadedSize+this.chunkSize-1,this.fileSize-1);if(start>=this.fileSize||this.aborted){this.completed=true;if(this.onCompletedCallback){this.onCompletedCallback(this)}return}this.isLoading=true;this.loadStartTime=JSMpeg.Now();this.request=new XMLHttpRequest;this.request.onreadystatechange=function(){if(this.request.readyState===this.request.DONE&&this.request.status>=200&&this.request.status<300){this.onChunkLoad(this.request.response)}else if(this.request.readyState===this.request.DONE){if(this.loadFails++<3){this.loadNextChunk()}}}.bind(this);if(start===0){this.request.onprogress=this.onProgress.bind(this)}this.request.open("GET",this.url+"?"+start+"-"+end);this.request.setRequestHeader("Range","bytes="+start+"-"+end);this.request.responseType="arraybuffer";this.request.send()};AjaxProgressiveSource.prototype.onProgress=function(ev){this.progress=ev.loaded/ev.total};AjaxProgressiveSource.prototype.onChunkLoad=function(data){var isFirstChunk=!this.established;this.established=true;this.progress=1;this.loadedSize+=data.byteLength;this.loadFails=0;this.isLoading=false;if(isFirstChunk&&this.onEstablishedCallback){this.onEstablishedCallback(this)}if(this.destination){this.destination.write(data)}this.loadTime=JSMpeg.Now()-this.loadStartTime;if(!this.throttled){this.loadNextChunk()}};return AjaxProgressiveSource}();JSMpeg.Source.WebSocket=function(){"use strict";var WSSource=function(url,options){this.url=url;this.options=options;this.socket=null;this.streaming=true;this.callbacks={connect:[],data:[]};this.destination=null;this.reconnectInterval=options.reconnectInterval!==undefined?options.reconnectInterval:5;this.shouldAttemptReconnect=!!this.reconnectInterval;this.completed=false;this.established=false;this.progress=0;this.reconnectTimeoutId=0;this.onEstablishedCallback=options.onSourceEstablished;this.onCompletedCallback=options.onSourceCompleted};WSSource.prototype.connect=function(destination){this.destination=destination};WSSource.prototype.destroy=function(){clearTimeout(this.reconnectTimeoutId);this.shouldAttemptReconnect=false;this.socket.close()};WSSource.prototype.start=function(){this.shouldAttemptReconnect=!!this.reconnectInterval;this.progress=0;this.established=false;this.socket=new WebSocket(this.url,this.options.protocols||null);this.socket.binaryType="arraybuffer";this.socket.onmessage=this.onMessage.bind(this);this.socket.onopen=this.onOpen.bind(this);this.socket.onerror=this.onClose.bind(this);this.socket.onclose=this.onClose.bind(this)};WSSource.prototype.resume=function(secondsHeadroom){};WSSource.prototype.onOpen=function(){this.progress=1};WSSource.prototype.onClose=function(){if(this.shouldAttemptReconnect){clearTimeout(this.reconnectTimeoutId);this.reconnectTimeoutId=setTimeout(function(){this.start()}.bind(this),this.reconnectInterval*1e3)}};WSSource.prototype.onMessage=function(ev){var isFirstChunk=!this.established;this.established=true;if(isFirstChunk&&this.onEstablishedCallback){this.onEstablishedCallback(this)}if(this.destination){this.destination.write(ev.data)}};return WSSource}();JSMpeg.Demuxer.TS=function(){"use strict";var TS=function(options){this.bits=null;this.leftoverBytes=null;this.guessVideoFrameEnd=true;this.pidsToStreamIds={};this.pesPacketInfo={};this.startTime=0;this.currentTime=0};TS.prototype.connect=function(streamId,destination){this.pesPacketInfo[streamId]={destination:destination,currentLength:0,totalLength:0,pts:0,buffers:[]}};TS.prototype.write=function(buffer){if(this.leftoverBytes){var totalLength=buffer.byteLength+this.leftoverBytes.byteLength;this.bits=new JSMpeg.BitBuffer(totalLength);this.bits.write([this.leftoverBytes,buffer])}else{this.bits=new JSMpeg.BitBuffer(buffer)}while(this.bits.has(188<<3)&&this.parsePacket()){}var leftoverCount=this.bits.byteLength-(this.bits.index>>3);this.leftoverBytes=leftoverCount>0?this.bits.bytes.subarray(this.bits.index>>3):null};TS.prototype.parsePacket=function(){if(this.bits.read(8)!==71){if(!this.resync()){return false}}var end=(this.bits.index>>3)+187;var transportError=this.bits.read(1),payloadStart=this.bits.read(1),transportPriority=this.bits.read(1),pid=this.bits.read(13),transportScrambling=this.bits.read(2),adaptationField=this.bits.read(2),continuityCounter=this.bits.read(4);var streamId=this.pidsToStreamIds[pid];if(payloadStart&&streamId){var pi=this.pesPacketInfo[streamId];if(pi&&pi.currentLength){this.packetComplete(pi)}}if(adaptationField&1){if(adaptationField&2){var adaptationFieldLength=this.bits.read(8);this.bits.skip(adaptationFieldLength<<3)}if(payloadStart&&this.bits.nextBytesAreStartCode()){this.bits.skip(24);streamId=this.bits.read(8);this.pidsToStreamIds[pid]=streamId;var packetLength=this.bits.read(16);this.bits.skip(8);var ptsDtsFlag=this.bits.read(2);this.bits.skip(6);var headerLength=this.bits.read(8);var payloadBeginIndex=this.bits.index+(headerLength<<3);var pi=this.pesPacketInfo[streamId];if(pi){var pts=0;if(ptsDtsFlag&2){this.bits.skip(4);var p32_30=this.bits.read(3);this.bits.skip(1);var p29_15=this.bits.read(15);this.bits.skip(1);var p14_0=this.bits.read(15);this.bits.skip(1);pts=(p32_30*1073741824+p29_15*32768+p14_0)/9e4;this.currentTime=pts;if(this.startTime===-1){this.startTime=pts}}var payloadLength=packetLength?packetLength-headerLength-3:0;this.packetStart(pi,pts,payloadLength)}this.bits.index=payloadBeginIndex}if(streamId){var pi=this.pesPacketInfo[streamId];if(pi){var start=this.bits.index>>3;var complete=this.packetAddData(pi,start,end);var hasPadding=!payloadStart&&adaptationField&2;if(complete||this.guessVideoFrameEnd&&hasPadding){this.packetComplete(pi)}}}}this.bits.index=end<<3;return true};TS.prototype.resync=function(){if(!this.bits.has(188*6<<3)){return false}var byteIndex=this.bits.index>>3;for(var i=0;i<187;i++){if(this.bits.bytes[byteIndex+i]===71){var foundSync=true;for(var j=1;j<5;j++){if(this.bits.bytes[byteIndex+i+188*j]!==71){foundSync=false;break}}if(foundSync){this.bits.index=byteIndex+i+1<<3;return true}}}console.warn("JSMpeg: Possible garbage data. Skipping.");this.bits.skip(187<<3);return false};TS.prototype.packetStart=function(pi,pts,payloadLength){pi.totalLength=payloadLength;pi.currentLength=0;pi.pts=pts};TS.prototype.packetAddData=function(pi,start,end){pi.buffers.push(this.bits.bytes.subarray(start,end));pi.currentLength+=end-start;var complete=pi.totalLength!==0&&pi.currentLength>=pi.totalLength;return complete};TS.prototype.packetComplete=function(pi){pi.destination.write(pi.pts,pi.buffers);pi.totalLength=0;pi.currentLength=0;pi.buffers=[]};TS.STREAM={PACK_HEADER:186,SYSTEM_HEADER:187,PROGRAM_MAP:188,PRIVATE_1:189,PADDING:190,PRIVATE_2:191,AUDIO_1:192,VIDEO_1:224,DIRECTORY:255};return TS}();JSMpeg.Decoder.Base=function(){"use strict";var BaseDecoder=function(options){this.destination=null;this.canPlay=false;this.collectTimestamps=!options.streaming;this.bytesWritten=0;this.timestamps=[];this.timestampIndex=0;this.startTime=0;this.decodedTime=0;Object.defineProperty(this,"currentTime",{get:this.getCurrentTime})};BaseDecoder.prototype.destroy=function(){};BaseDecoder.prototype.connect=function(destination){this.destination=destination};BaseDecoder.prototype.bufferGetIndex=function(){return this.bits.index};BaseDecoder.prototype.bufferSetIndex=function(index){this.bits.index=index};BaseDecoder.prototype.bufferWrite=function(buffers){return this.bits.write(buffers)};BaseDecoder.prototype.write=function(pts,buffers){if(this.collectTimestamps){if(this.timestamps.length===0){this.startTime=pts;this.decodedTime=pts}this.timestamps.push({index:this.bytesWritten<<3,time:pts})}this.bytesWritten+=this.bufferWrite(buffers);this.canPlay=true};BaseDecoder.prototype.seek=function(time){if(!this.collectTimestamps){return}this.timestampIndex=0;for(var i=0;itime){break}this.timestampIndex=i}var ts=this.timestamps[this.timestampIndex];if(ts){this.bufferSetIndex(ts.index);this.decodedTime=ts.time}else{this.bufferSetIndex(0);this.decodedTime=this.startTime}};BaseDecoder.prototype.decode=function(){this.advanceDecodedTime(0)};BaseDecoder.prototype.advanceDecodedTime=function(seconds){if(this.collectTimestamps){var newTimestampIndex=-1;var currentIndex=this.bufferGetIndex();for(var i=this.timestampIndex;icurrentIndex){break}newTimestampIndex=i}if(newTimestampIndex!==-1&&newTimestampIndex!==this.timestampIndex){this.timestampIndex=newTimestampIndex;this.decodedTime=this.timestamps[this.timestampIndex].time;return}}this.decodedTime+=seconds};BaseDecoder.prototype.getCurrentTime=function(){return this.decodedTime};return BaseDecoder}();JSMpeg.Decoder.MPEG1Video=function(){"use strict";var MPEG1=function(options){JSMpeg.Decoder.Base.call(this,options);this.onDecodeCallback=options.onVideoDecode;var bufferSize=options.videoBufferSize||512*1024;var bufferMode=options.streaming?JSMpeg.BitBuffer.MODE.EVICT:JSMpeg.BitBuffer.MODE.EXPAND;this.bits=new JSMpeg.BitBuffer(bufferSize,bufferMode);this.customIntraQuantMatrix=new Uint8Array(64);this.customNonIntraQuantMatrix=new Uint8Array(64);this.blockData=new Int32Array(64);this.currentFrame=0;this.decodeFirstFrame=options.decodeFirstFrame!==false};MPEG1.prototype=Object.create(JSMpeg.Decoder.Base.prototype);MPEG1.prototype.constructor=MPEG1;MPEG1.prototype.write=function(pts,buffers){JSMpeg.Decoder.Base.prototype.write.call(this,pts,buffers);if(!this.hasSequenceHeader){if(this.bits.findStartCode(MPEG1.START.SEQUENCE)===-1){return false}this.decodeSequenceHeader();if(this.decodeFirstFrame){this.decode()}}};MPEG1.prototype.decode=function(){var startTime=JSMpeg.Now();if(!this.hasSequenceHeader){return false}if(this.bits.findStartCode(MPEG1.START.PICTURE)===-1){var bufferedBytes=this.bits.byteLength-(this.bits.index>>3);return false}this.decodePicture();this.advanceDecodedTime(1/this.frameRate);var elapsedTime=JSMpeg.Now()-startTime;if(this.onDecodeCallback){this.onDecodeCallback(this,elapsedTime)}return true};MPEG1.prototype.readHuffman=function(codeTable){var state=0;do{state=codeTable[state+this.bits.read(1)]}while(state>=0&&codeTable[state]!==0);return codeTable[state+2]};MPEG1.prototype.frameRate=30;MPEG1.prototype.decodeSequenceHeader=function(){var newWidth=this.bits.read(12),newHeight=this.bits.read(12);this.bits.skip(4);this.frameRate=MPEG1.PICTURE_RATE[this.bits.read(4)];this.bits.skip(18+1+10+1);if(newWidth!==this.width||newHeight!==this.height){this.width=newWidth;this.height=newHeight;this.initBuffers();if(this.destination){this.destination.resize(newWidth,newHeight)}}if(this.bits.read(1)){for(var i=0;i<64;i++){this.customIntraQuantMatrix[MPEG1.ZIG_ZAG[i]]=this.bits.read(8)}this.intraQuantMatrix=this.customIntraQuantMatrix}if(this.bits.read(1)){for(var i=0;i<64;i++){var idx=MPEG1.ZIG_ZAG[i];this.customNonIntraQuantMatrix[idx]=this.bits.read(8)}this.nonIntraQuantMatrix=this.customNonIntraQuantMatrix}this.hasSequenceHeader=true};MPEG1.prototype.initBuffers=function(){this.intraQuantMatrix=MPEG1.DEFAULT_INTRA_QUANT_MATRIX;this.nonIntraQuantMatrix=MPEG1.DEFAULT_NON_INTRA_QUANT_MATRIX;this.mbWidth=this.width+15>>4;this.mbHeight=this.height+15>>4;this.mbSize=this.mbWidth*this.mbHeight;this.codedWidth=this.mbWidth<<4;this.codedHeight=this.mbHeight<<4;this.codedSize=this.codedWidth*this.codedHeight;this.halfWidth=this.mbWidth<<3;this.halfHeight=this.mbHeight<<3;this.currentY=new Uint8ClampedArray(this.codedSize);this.currentY32=new Uint32Array(this.currentY.buffer);this.currentCr=new Uint8ClampedArray(this.codedSize>>2);this.currentCr32=new Uint32Array(this.currentCr.buffer);this.currentCb=new Uint8ClampedArray(this.codedSize>>2);this.currentCb32=new Uint32Array(this.currentCb.buffer);this.forwardY=new Uint8ClampedArray(this.codedSize);this.forwardY32=new Uint32Array(this.forwardY.buffer);this.forwardCr=new Uint8ClampedArray(this.codedSize>>2);this.forwardCr32=new Uint32Array(this.forwardCr.buffer);this.forwardCb=new Uint8ClampedArray(this.codedSize>>2);this.forwardCb32=new Uint32Array(this.forwardCb.buffer)};MPEG1.prototype.currentY=null;MPEG1.prototype.currentCr=null;MPEG1.prototype.currentCb=null;MPEG1.prototype.pictureType=0;MPEG1.prototype.forwardY=null;MPEG1.prototype.forwardCr=null;MPEG1.prototype.forwardCb=null;MPEG1.prototype.fullPelForward=false;MPEG1.prototype.forwardFCode=0;MPEG1.prototype.forwardRSize=0;MPEG1.prototype.forwardF=0;MPEG1.prototype.decodePicture=function(skipOutput){this.currentFrame++;this.bits.skip(10);this.pictureType=this.bits.read(3);this.bits.skip(16);if(this.pictureType<=0||this.pictureType>=MPEG1.PICTURE_TYPE.B){return}if(this.pictureType===MPEG1.PICTURE_TYPE.PREDICTIVE){this.fullPelForward=this.bits.read(1);this.forwardFCode=this.bits.read(3);if(this.forwardFCode===0){return}this.forwardRSize=this.forwardFCode-1;this.forwardF=1<=MPEG1.START.SLICE_FIRST&&code<=MPEG1.START.SLICE_LAST){this.decodeSlice(code&255);code=this.bits.findNextStartCode()}if(code!==-1){this.bits.rewind(32)}if(this.destination){this.destination.render(this.currentY,this.currentCr,this.currentCb,true)}if(this.pictureType===MPEG1.PICTURE_TYPE.INTRA||this.pictureType===MPEG1.PICTURE_TYPE.PREDICTIVE){var tmpY=this.forwardY,tmpY32=this.forwardY32,tmpCr=this.forwardCr,tmpCr32=this.forwardCr32,tmpCb=this.forwardCb,tmpCb32=this.forwardCb32;this.forwardY=this.currentY;this.forwardY32=this.currentY32;this.forwardCr=this.currentCr;this.forwardCr32=this.currentCr32;this.forwardCb=this.currentCb;this.forwardCb32=this.currentCb32;this.currentY=tmpY;this.currentY32=tmpY32;this.currentCr=tmpCr;this.currentCr32=tmpCr32;this.currentCb=tmpCb;this.currentCb32=tmpCb32}};MPEG1.prototype.quantizerScale=0;MPEG1.prototype.sliceBegin=false;MPEG1.prototype.decodeSlice=function(slice){this.sliceBegin=true;this.macroblockAddress=(slice-1)*this.mbWidth-1;this.motionFwH=this.motionFwHPrev=0;this.motionFwV=this.motionFwVPrev=0;this.dcPredictorY=128;this.dcPredictorCr=128;this.dcPredictorCb=128;this.quantizerScale=this.bits.read(5);while(this.bits.read(1)){this.bits.skip(8)}do{this.decodeMacroblock()}while(!this.bits.nextBytesAreStartCode())};MPEG1.prototype.macroblockAddress=0;MPEG1.prototype.mbRow=0;MPEG1.prototype.mbCol=0;MPEG1.prototype.macroblockType=0;MPEG1.prototype.macroblockIntra=false;MPEG1.prototype.macroblockMotFw=false;MPEG1.prototype.motionFwH=0;MPEG1.prototype.motionFwV=0;MPEG1.prototype.motionFwHPrev=0;MPEG1.prototype.motionFwVPrev=0;MPEG1.prototype.decodeMacroblock=function(){var increment=0,t=this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT);while(t===34){t=this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT)}while(t===35){increment+=33; 2 | 3 | t=this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT)}increment+=t;if(this.sliceBegin){this.sliceBegin=false;this.macroblockAddress+=increment}else{if(this.macroblockAddress+increment>=this.mbSize){return}if(increment>1){this.dcPredictorY=128;this.dcPredictorCr=128;this.dcPredictorCb=128;if(this.pictureType===MPEG1.PICTURE_TYPE.PREDICTIVE){this.motionFwH=this.motionFwHPrev=0;this.motionFwV=this.motionFwVPrev=0}}while(increment>1){this.macroblockAddress++;this.mbRow=this.macroblockAddress/this.mbWidth|0;this.mbCol=this.macroblockAddress%this.mbWidth;this.copyMacroblock(this.motionFwH,this.motionFwV,this.forwardY,this.forwardCr,this.forwardCb);increment--}this.macroblockAddress++}this.mbRow=this.macroblockAddress/this.mbWidth|0;this.mbCol=this.macroblockAddress%this.mbWidth;var mbTable=MPEG1.MACROBLOCK_TYPE[this.pictureType];this.macroblockType=this.readHuffman(mbTable);this.macroblockIntra=this.macroblockType&1;this.macroblockMotFw=this.macroblockType&8;if((this.macroblockType&16)!==0){this.quantizerScale=this.bits.read(5)}if(this.macroblockIntra){this.motionFwH=this.motionFwHPrev=0;this.motionFwV=this.motionFwVPrev=0}else{this.dcPredictorY=128;this.dcPredictorCr=128;this.dcPredictorCb=128;this.decodeMotionVectors();this.copyMacroblock(this.motionFwH,this.motionFwV,this.forwardY,this.forwardCr,this.forwardCb)}var cbp=(this.macroblockType&2)!==0?this.readHuffman(MPEG1.CODE_BLOCK_PATTERN):this.macroblockIntra?63:0;for(var block=0,mask=32;block<6;block++){if((cbp&mask)!==0){this.decodeBlock(block)}mask>>=1}};MPEG1.prototype.decodeMotionVectors=function(){var code,d,r=0;if(this.macroblockMotFw){code=this.readHuffman(MPEG1.MOTION);if(code!==0&&this.forwardF!==1){r=this.bits.read(this.forwardRSize);d=(Math.abs(code)-1<(this.forwardF<<4)-1){this.motionFwHPrev-=this.forwardF<<5}else if(this.motionFwHPrev<-this.forwardF<<4){this.motionFwHPrev+=this.forwardF<<5}this.motionFwH=this.motionFwHPrev;if(this.fullPelForward){this.motionFwH<<=1}code=this.readHuffman(MPEG1.MOTION);if(code!==0&&this.forwardF!==1){r=this.bits.read(this.forwardRSize);d=(Math.abs(code)-1<(this.forwardF<<4)-1){this.motionFwVPrev-=this.forwardF<<5}else if(this.motionFwVPrev<-this.forwardF<<4){this.motionFwVPrev+=this.forwardF<<5}this.motionFwV=this.motionFwVPrev;if(this.fullPelForward){this.motionFwV<<=1}}else if(this.pictureType===MPEG1.PICTURE_TYPE.PREDICTIVE){this.motionFwH=this.motionFwHPrev=0;this.motionFwV=this.motionFwVPrev=0}};MPEG1.prototype.copyMacroblock=function(motionH,motionV,sY,sCr,sCb){var width,scan,H,V,oddH,oddV,src,dest,last;var dY=this.currentY32,dCb=this.currentCb32,dCr=this.currentCr32;width=this.codedWidth;scan=width-16;H=motionH>>1;V=motionV>>1;oddH=(motionH&1)===1;oddV=(motionV&1)===1;src=((this.mbRow<<4)+V)*width+(this.mbCol<<4)+H;dest=this.mbRow*width+this.mbCol<<2;last=dest+(width<<2);var x,y1,y2,y;if(oddH){if(oddV){while(dest>2&255;y1=sY[src]+sY[src+width];src++;y|=y1+y2+2<<6&65280;y2=sY[src]+sY[src+width];src++;y|=y1+y2+2<<14&16711680;y1=sY[src]+sY[src+width];src++;y|=y1+y2+2<<22&4278190080;dY[dest++]=y}dest+=scan>>2;src+=scan-1}}else{while(dest>1&255;y1=sY[src++];y|=y1+y2+1<<7&65280;y2=sY[src++];y|=y1+y2+1<<15&16711680;y1=sY[src++];y|=y1+y2+1<<23&4278190080;dY[dest++]=y}dest+=scan>>2;src+=scan-1}}}else{if(oddV){while(dest>1&255;src++;y|=sY[src]+sY[src+width]+1<<7&65280;src++;y|=sY[src]+sY[src+width]+1<<15&16711680;src++;y|=sY[src]+sY[src+width]+1<<23&4278190080;src++;dY[dest++]=y}dest+=scan>>2;src+=scan}}else{while(dest>2;src+=scan}}}width=this.halfWidth;scan=width-8;H=motionH/2>>1;V=motionV/2>>1;oddH=(motionH/2&1)===1;oddV=(motionV/2&1)===1;src=((this.mbRow<<3)+V)*width+(this.mbCol<<3)+H;dest=this.mbRow*width+this.mbCol<<1;last=dest+(width<<1);var cr1,cr2,cr,cb1,cb2,cb;if(oddH){if(oddV){while(dest>2&255;cb=cb1+cb2+2>>2&255;cr1=sCr[src]+sCr[src+width];cb1=sCb[src]+sCb[src+width];src++;cr|=cr1+cr2+2<<6&65280;cb|=cb1+cb2+2<<6&65280;cr2=sCr[src]+sCr[src+width];cb2=sCb[src]+sCb[src+width];src++;cr|=cr1+cr2+2<<14&16711680;cb|=cb1+cb2+2<<14&16711680;cr1=sCr[src]+sCr[src+width];cb1=sCb[src]+sCb[src+width];src++;cr|=cr1+cr2+2<<22&4278190080;cb|=cb1+cb2+2<<22&4278190080;dCr[dest]=cr;dCb[dest]=cb;dest++}dest+=scan>>2;src+=scan-1}}else{while(dest>1&255;cb=cb1+cb2+1>>1&255;cr1=sCr[src];cb1=sCb[src++];cr|=cr1+cr2+1<<7&65280;cb|=cb1+cb2+1<<7&65280;cr2=sCr[src];cb2=sCb[src++];cr|=cr1+cr2+1<<15&16711680;cb|=cb1+cb2+1<<15&16711680;cr1=sCr[src];cb1=sCb[src++];cr|=cr1+cr2+1<<23&4278190080;cb|=cb1+cb2+1<<23&4278190080;dCr[dest]=cr;dCb[dest]=cb;dest++}dest+=scan>>2;src+=scan-1}}}else{if(oddV){while(dest>1&255;cb=sCb[src]+sCb[src+width]+1>>1&255;src++;cr|=sCr[src]+sCr[src+width]+1<<7&65280;cb|=sCb[src]+sCb[src+width]+1<<7&65280;src++;cr|=sCr[src]+sCr[src+width]+1<<15&16711680;cb|=sCb[src]+sCb[src+width]+1<<15&16711680;src++;cr|=sCr[src]+sCr[src+width]+1<<23&4278190080;cb|=sCb[src]+sCb[src+width]+1<<23&4278190080;src++;dCr[dest]=cr;dCb[dest]=cb;dest++}dest+=scan>>2;src+=scan}}else{while(dest>2;src+=scan}}}};MPEG1.prototype.dcPredictorY=0;MPEG1.prototype.dcPredictorCr=0;MPEG1.prototype.dcPredictorCb=0;MPEG1.prototype.blockData=null;MPEG1.prototype.decodeBlock=function(block){var n=0,quantMatrix;if(this.macroblockIntra){var predictor,dctSize;if(block<4){predictor=this.dcPredictorY;dctSize=this.readHuffman(MPEG1.DCT_DC_SIZE_LUMINANCE)}else{predictor=block===4?this.dcPredictorCr:this.dcPredictorCb;dctSize=this.readHuffman(MPEG1.DCT_DC_SIZE_CHROMINANCE)}if(dctSize>0){var differential=this.bits.read(dctSize);if((differential&1<0&&this.bits.read(1)===0){break}if(coeff===65535){run=this.bits.read(6);level=this.bits.read(8);if(level===0){level=this.bits.read(8)}else if(level===128){level=this.bits.read(8)-256}else if(level>128){level=level-256}}else{run=coeff>>8;level=coeff&255;if(this.bits.read(1)){level=-level}}n+=run;var dezigZagged=MPEG1.ZIG_ZAG[n];n++;level<<=1;if(!this.macroblockIntra){level+=level<0?-1:1}level=level*this.quantizerScale*quantMatrix[dezigZagged]>>4;if((level&1)===0){level-=level>0?1:-1}if(level>2047){level=2047}else if(level<-2048){level=-2048}this.blockData[dezigZagged]=level*MPEG1.PREMULTIPLIER_MATRIX[dezigZagged]}var destArray,destIndex,scan;if(block<4){destArray=this.currentY;scan=this.codedWidth-8;destIndex=this.mbRow*this.codedWidth+this.mbCol<<4;if((block&1)!==0){destIndex+=8}if((block&2)!==0){destIndex+=this.codedWidth<<3}}else{destArray=block===4?this.currentCb:this.currentCr;scan=(this.codedWidth>>1)-8;destIndex=(this.mbRow*this.codedWidth<<2)+(this.mbCol<<3)}if(this.macroblockIntra){if(n===1){MPEG1.CopyValueToDestination(this.blockData[0]+128>>8,destArray,destIndex,scan);this.blockData[0]=0}else{MPEG1.IDCT(this.blockData);MPEG1.CopyBlockToDestination(this.blockData,destArray,destIndex,scan);JSMpeg.Fill(this.blockData,0)}}else{if(n===1){MPEG1.AddValueToDestination(this.blockData[0]+128>>8,destArray,destIndex,scan);this.blockData[0]=0}else{MPEG1.IDCT(this.blockData);MPEG1.AddBlockToDestination(this.blockData,destArray,destIndex,scan);JSMpeg.Fill(this.blockData,0)}}n=0};MPEG1.CopyBlockToDestination=function(block,dest,index,scan){for(var n=0;n<64;n+=8,index+=scan+8){dest[index+0]=block[n+0];dest[index+1]=block[n+1];dest[index+2]=block[n+2];dest[index+3]=block[n+3];dest[index+4]=block[n+4];dest[index+5]=block[n+5];dest[index+6]=block[n+6];dest[index+7]=block[n+7]}};MPEG1.AddBlockToDestination=function(block,dest,index,scan){for(var n=0;n<64;n+=8,index+=scan+8){dest[index+0]+=block[n+0];dest[index+1]+=block[n+1];dest[index+2]+=block[n+2];dest[index+3]+=block[n+3];dest[index+4]+=block[n+4];dest[index+5]+=block[n+5];dest[index+6]+=block[n+6];dest[index+7]+=block[n+7]}};MPEG1.CopyValueToDestination=function(value,dest,index,scan){for(var n=0;n<64;n+=8,index+=scan+8){dest[index+0]=value;dest[index+1]=value;dest[index+2]=value;dest[index+3]=value;dest[index+4]=value;dest[index+5]=value;dest[index+6]=value;dest[index+7]=value}};MPEG1.AddValueToDestination=function(value,dest,index,scan){for(var n=0;n<64;n+=8,index+=scan+8){dest[index+0]+=value;dest[index+1]+=value;dest[index+2]+=value;dest[index+3]+=value;dest[index+4]+=value;dest[index+5]+=value;dest[index+6]+=value;dest[index+7]+=value}};MPEG1.IDCT=function(block){var b1,b3,b4,b6,b7,tmp1,tmp2,m0,x0,x1,x2,x3,x4,y3,y4,y5,y6,y7;for(var i=0;i<8;++i){b1=block[4*8+i];b3=block[2*8+i]+block[6*8+i];b4=block[5*8+i]-block[3*8+i];tmp1=block[1*8+i]+block[7*8+i];tmp2=block[3*8+i]+block[5*8+i];b6=block[1*8+i]-block[7*8+i];b7=tmp1+tmp2;m0=block[0*8+i];x4=(b6*473-b4*196+128>>8)-b7;x0=x4-((tmp1-tmp2)*362+128>>8);x1=m0-b1;x2=((block[2*8+i]-block[6*8+i])*362+128>>8)-b3;x3=m0+b1;y3=x1+x2;y4=x3+b3;y5=x1-x2;y6=x3-b3;y7=-x0-(b4*473+b6*196+128>>8);block[0*8+i]=b7+y4;block[1*8+i]=x4+y3;block[2*8+i]=y5-x0;block[3*8+i]=y6-y7;block[4*8+i]=y6+y7;block[5*8+i]=x0+y5;block[6*8+i]=y3-x4;block[7*8+i]=y4-b7}for(var i=0;i<64;i+=8){b1=block[4+i];b3=block[2+i]+block[6+i];b4=block[5+i]-block[3+i];tmp1=block[1+i]+block[7+i];tmp2=block[3+i]+block[5+i];b6=block[1+i]-block[7+i];b7=tmp1+tmp2;m0=block[0+i];x4=(b6*473-b4*196+128>>8)-b7;x0=x4-((tmp1-tmp2)*362+128>>8);x1=m0-b1;x2=((block[2+i]-block[6+i])*362+128>>8)-b3;x3=m0+b1;y3=x1+x2;y4=x3+b3;y5=x1-x2;y6=x3-b3;y7=-x0-(b4*473+b6*196+128>>8);block[0+i]=b7+y4+128>>8;block[1+i]=x4+y3+128>>8;block[2+i]=y5-x0+128>>8;block[3+i]=y6-y7+128>>8;block[4+i]=y6+y7+128>>8;block[5+i]=x0+y5+128>>8;block[6+i]=y3-x4+128>>8;block[7+i]=y4-b7+128>>8}};MPEG1.PICTURE_RATE=[0,23.976,24,25,29.97,30,50,59.94,60,0,0,0,0,0,0,0];MPEG1.ZIG_ZAG=new Uint8Array([0,1,8,16,9,2,3,10,17,24,32,25,18,11,4,5,12,19,26,33,40,48,41,34,27,20,13,6,7,14,21,28,35,42,49,56,57,50,43,36,29,22,15,23,30,37,44,51,58,59,52,45,38,31,39,46,53,60,61,54,47,55,62,63]);MPEG1.DEFAULT_INTRA_QUANT_MATRIX=new Uint8Array([8,16,19,22,26,27,29,34,16,16,22,24,27,29,34,37,19,22,26,27,29,34,34,38,22,22,26,27,29,34,37,40,22,26,27,29,32,35,40,48,26,27,29,32,35,40,48,58,26,27,29,34,38,46,56,69,27,29,35,38,46,56,69,83]);MPEG1.DEFAULT_NON_INTRA_QUANT_MATRIX=new Uint8Array([16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16]);MPEG1.PREMULTIPLIER_MATRIX=new Uint8Array([32,44,42,38,32,25,17,9,44,62,58,52,44,35,24,12,42,58,55,49,42,33,23,12,38,52,49,44,38,30,20,10,32,44,42,38,32,25,17,9,25,35,33,30,25,20,14,7,17,24,23,20,17,14,9,5,9,12,12,10,9,7,5,2]);MPEG1.MACROBLOCK_ADDRESS_INCREMENT=new Int16Array([1*3,2*3,0,3*3,4*3,0,0,0,1,5*3,6*3,0,7*3,8*3,0,9*3,10*3,0,11*3,12*3,0,0,0,3,0,0,2,13*3,14*3,0,15*3,16*3,0,0,0,5,0,0,4,17*3,18*3,0,19*3,20*3,0,0,0,7,0,0,6,21*3,22*3,0,23*3,24*3,0,25*3,26*3,0,27*3,28*3,0,-1,29*3,0,-1,30*3,0,31*3,32*3,0,33*3,34*3,0,35*3,36*3,0,37*3,38*3,0,0,0,9,0,0,8,39*3,40*3,0,41*3,42*3,0,43*3,44*3,0,45*3,46*3,0,0,0,15,0,0,14,0,0,13,0,0,12,0,0,11,0,0,10,47*3,-1,0,-1,48*3,0,49*3,50*3,0,51*3,52*3,0,53*3,54*3,0,55*3,56*3,0,57*3,58*3,0,59*3,60*3,0,61*3,-1,0,-1,62*3,0,63*3,64*3,0,65*3,66*3,0,67*3,68*3,0,69*3,70*3,0,71*3,72*3,0,73*3,74*3,0,0,0,21,0,0,20,0,0,19,0,0,18,0,0,17,0,0,16,0,0,35,0,0,34,0,0,33,0,0,32,0,0,31,0,0,30,0,0,29,0,0,28,0,0,27,0,0,26,0,0,25,0,0,24,0,0,23,0,0,22]);MPEG1.MACROBLOCK_TYPE_INTRA=new Int8Array([1*3,2*3,0,-1,3*3,0,0,0,1,0,0,17]);MPEG1.MACROBLOCK_TYPE_PREDICTIVE=new Int8Array([1*3,2*3,0,3*3,4*3,0,0,0,10,5*3,6*3,0,0,0,2,7*3,8*3,0,0,0,8,9*3,10*3,0,11*3,12*3,0,-1,13*3,0,0,0,18,0,0,26,0,0,1,0,0,17]);MPEG1.MACROBLOCK_TYPE_B=new Int8Array([1*3,2*3,0,3*3,5*3,0,4*3,6*3,0,8*3,7*3,0,0,0,12,9*3,10*3,0,0,0,14,13*3,14*3,0,12*3,11*3,0,0,0,4,0,0,6,18*3,16*3,0,15*3,17*3,0,0,0,8,0,0,10,-1,19*3,0,0,0,1,20*3,21*3,0,0,0,30,0,0,17,0,0,22,0,0,26]);MPEG1.MACROBLOCK_TYPE=[null,MPEG1.MACROBLOCK_TYPE_INTRA,MPEG1.MACROBLOCK_TYPE_PREDICTIVE,MPEG1.MACROBLOCK_TYPE_B];MPEG1.CODE_BLOCK_PATTERN=new Int16Array([2*3,1*3,0,3*3,6*3,0,4*3,5*3,0,8*3,11*3,0,12*3,13*3,0,9*3,7*3,0,10*3,14*3,0,20*3,19*3,0,18*3,16*3,0,23*3,17*3,0,27*3,25*3,0,21*3,28*3,0,15*3,22*3,0,24*3,26*3,0,0,0,60,35*3,40*3,0,44*3,48*3,0,38*3,36*3,0,42*3,47*3,0,29*3,31*3,0,39*3,32*3,0,0,0,32,45*3,46*3,0,33*3,41*3,0,43*3,34*3,0,0,0,4,30*3,37*3,0,0,0,8,0,0,16,0,0,44,50*3,56*3,0,0,0,28,0,0,52,0,0,62,61*3,59*3,0,52*3,60*3,0,0,0,1,55*3,54*3,0,0,0,61,0,0,56,57*3,58*3,0,0,0,2,0,0,40,51*3,62*3,0,0,0,48,64*3,63*3,0,49*3,53*3,0,0,0,20,0,0,12,80*3,83*3,0,0,0,63,77*3,75*3,0,65*3,73*3,0,84*3,66*3,0,0,0,24,0,0,36,0,0,3,69*3,87*3,0,81*3,79*3,0,68*3,71*3,0,70*3,78*3,0,67*3,76*3,0,72*3,74*3,0,86*3,85*3,0,88*3,82*3,0,-1,94*3,0,95*3,97*3,0,0,0,33,0,0,9,106*3,110*3,0,102*3,116*3,0,0,0,5,0,0,10,93*3,89*3,0,0,0,6,0,0,18,0,0,17,0,0,34,113*3,119*3,0,103*3,104*3,0,90*3,92*3,0,109*3,107*3,0,117*3,118*3,0,101*3,99*3,0,98*3,96*3,0,100*3,91*3,0,114*3,115*3,0,105*3,108*3,0,112*3,111*3,0,121*3,125*3,0,0,0,41,0,0,14,0,0,21,124*3,122*3,0,120*3,123*3,0,0,0,11,0,0,19,0,0,7,0,0,35,0,0,13,0,0,50,0,0,49,0,0,58,0,0,37,0,0,25,0,0,45,0,0,57,0,0,26,0,0,29,0,0,38,0,0,53,0,0,23,0,0,43,0,0,46,0,0,42,0,0,22,0,0,54,0,0,51,0,0,15,0,0,30,0,0,39,0,0,47,0,0,55,0,0,27,0,0,59,0,0,31]);MPEG1.MOTION=new Int16Array([1*3,2*3,0,4*3,3*3,0,0,0,0,6*3,5*3,0,8*3,7*3,0,0,0,-1,0,0,1,9*3,10*3,0,12*3,11*3,0,0,0,2,0,0,-2,14*3,15*3,0,16*3,13*3,0,20*3,18*3,0,0,0,3,0,0,-3,17*3,19*3,0,-1,23*3,0,27*3,25*3,0,26*3,21*3,0,24*3,22*3,0,32*3,28*3,0,29*3,31*3,0,-1,33*3,0,36*3,35*3,0,0,0,-4,30*3,34*3,0,0,0,4,0,0,-7,0,0,5,37*3,41*3,0,0,0,-5,0,0,7,38*3,40*3,0,42*3,39*3,0,0,0,-6,0,0,6,51*3,54*3,0,50*3,49*3,0,45*3,46*3,0,52*3,47*3,0,43*3,53*3,0,44*3,48*3,0,0,0,10,0,0,9,0,0,8,0,0,-8,57*3,66*3,0,0,0,-9,60*3,64*3,0,56*3,61*3,0,55*3,62*3,0,58*3,63*3,0,0,0,-10,59*3,65*3,0,0,0,12,0,0,16,0,0,13,0,0,14,0,0,11,0,0,15,0,0,-16,0,0,-12,0,0,-14,0,0,-15,0,0,-11,0,0,-13]);MPEG1.DCT_DC_SIZE_LUMINANCE=new Int8Array([2*3,1*3,0,6*3,5*3,0,3*3,4*3,0,0,0,1,0,0,2,9*3,8*3,0,7*3,10*3,0,0,0,0,12*3,11*3,0,0,0,4,0,0,3,13*3,14*3,0,0,0,5,0,0,6,16*3,15*3,0,17*3,-1,0,0,0,7,0,0,8]);MPEG1.DCT_DC_SIZE_CHROMINANCE=new Int8Array([2*3,1*3,0,4*3,3*3,0,6*3,5*3,0,8*3,7*3,0,0,0,2,0,0,1,0,0,0,10*3,9*3,0,0,0,3,12*3,11*3,0,0,0,4,14*3,13*3,0,0,0,5,16*3,15*3,0,0,0,6,17*3,-1,0,0,0,7,0,0,8]);MPEG1.DCT_COEFF=new Int32Array([1*3,2*3,0,4*3,3*3,0,0,0,1,7*3,8*3,0,6*3,5*3,0,13*3,9*3,0,11*3,10*3,0,14*3,12*3,0,0,0,257,20*3,22*3,0,18*3,21*3,0,16*3,19*3,0,0,0,513,17*3,15*3,0,0,0,2,0,0,3,27*3,25*3,0,29*3,31*3,0,24*3,26*3,0,32*3,30*3,0,0,0,1025,23*3,28*3,0,0,0,769,0,0,258,0,0,1793,0,0,65535,0,0,1537,37*3,36*3,0,0,0,1281,35*3,34*3,0,39*3,38*3,0,33*3,42*3,0,40*3,41*3,0,52*3,50*3,0,54*3,53*3,0,48*3,49*3,0,43*3,45*3,0,46*3,44*3,0,0,0,2049,0,0,4,0,0,514,0,0,2305,51*3,47*3,0,55*3,57*3,0,60*3,56*3,0,59*3,58*3,0,61*3,62*3,0,0,0,2561,0,0,3329,0,0,6,0,0,259,0,0,5,0,0,770,0,0,2817,0,0,3073,76*3,75*3,0,67*3,70*3,0,73*3,71*3,0,78*3,74*3,0,72*3,77*3,0,69*3,64*3,0,68*3,63*3,0,66*3,65*3,0,81*3,87*3,0,91*3,80*3,0,82*3,79*3,0,83*3,86*3,0,93*3,92*3,0,84*3,85*3,0,90*3,94*3,0,88*3,89*3,0,0,0,515,0,0,260,0,0,7,0,0,1026,0,0,1282,0,0,4097,0,0,3841,0,0,3585,105*3,107*3,0,111*3,114*3,0,104*3,97*3,0,125*3,119*3,0,96*3,98*3,0,-1,123*3,0,95*3,101*3,0,106*3,121*3,0,99*3,102*3,0,113*3,103*3,0,112*3,116*3,0,110*3,100*3,0,124*3,115*3,0,117*3,122*3,0,109*3,118*3,0,120*3,108*3,0,127*3,136*3,0,139*3,140*3,0,130*3,126*3,0,145*3,146*3,0,128*3,129*3,0,0,0,2050,132*3,134*3,0,155*3,154*3,0,0,0,8,137*3,133*3,0,143*3,144*3,0,151*3,138*3,0,142*3,141*3,0,0,0,10,0,0,9,0,0,11,0,0,5377,0,0,1538,0,0,771,0,0,5121,0,0,1794,0,0,4353,0,0,4609,0,0,4865,148*3,152*3,0,0,0,1027,153*3,150*3,0,0,0,261,131*3,135*3,0,0,0,516,149*3,147*3,0,172*3,173*3,0,162*3,158*3,0,170*3,161*3,0,168*3,166*3,0,157*3,179*3,0,169*3,167*3,0,174*3,171*3,0,178*3,177*3,0,156*3,159*3,0,164*3,165*3,0,183*3,182*3,0,175*3,176*3,0,0,0,263,0,0,2562,0,0,2306,0,0,5633,0,0,5889,0,0,6401,0,0,6145,0,0,1283,0,0,772,0,0,13,0,0,12,0,0,14,0,0,15,0,0,517,0,0,6657,0,0,262,180*3,181*3,0,160*3,163*3,0,196*3,199*3,0,0,0,27,203*3,185*3,0,202*3,201*3,0,0,0,19,0,0,22,197*3,207*3,0,0,0,18,191*3,192*3,0,188*3,190*3,0,0,0,20,184*3,194*3,0,0,0,21,186*3,193*3,0,0,0,23,204*3,198*3,0,0,0,25,0,0,24,200*3,205*3,0,0,0,31,0,0,30,0,0,28,0,0,29,0,0,26,0,0,17,0,0,16,189*3,206*3,0,187*3,195*3,0,218*3,211*3,0,0,0,37,215*3,216*3,0,0,0,36,210*3,212*3,0,0,0,34,213*3,209*3,0,221*3,222*3,0,219*3,208*3,0,217*3,214*3,0,223*3,220*3,0,0,0,35,0,0,267,0,0,40,0,0,268,0,0,266,0,0,32,0,0,264,0,0,265,0,0,38,0,0,269,0,0,270,0,0,33,0,0,39,0,0,7937,0,0,6913,0,0,7681,0,0,4098,0,0,7425,0,0,7169,0,0,271,0,0,274,0,0,273,0,0,272,0,0,1539,0,0,2818,0,0,3586,0,0,3330,0,0,3074,0,0,3842]);MPEG1.PICTURE_TYPE={INTRA:1,PREDICTIVE:2,B:3};MPEG1.START={SEQUENCE:179,SLICE_FIRST:1,SLICE_LAST:175,PICTURE:0,EXTENSION:181,USER_DATA:178};return MPEG1}();JSMpeg.Decoder.MPEG1VideoWASM=function(){"use strict";var MPEG1WASM=function(options){JSMpeg.Decoder.Base.call(this,options);this.onDecodeCallback=options.onVideoDecode;this.module=options.wasmModule;this.bufferSize=options.videoBufferSize||512*1024;this.bufferMode=options.streaming?JSMpeg.BitBuffer.MODE.EVICT:JSMpeg.BitBuffer.MODE.EXPAND;this.decodeFirstFrame=options.decodeFirstFrame!==false;this.hasSequenceHeader=false};MPEG1WASM.prototype=Object.create(JSMpeg.Decoder.Base.prototype);MPEG1WASM.prototype.constructor=MPEG1WASM;MPEG1WASM.prototype.initializeWasmDecoder=function(){if(!this.module.instance){console.warn("JSMpeg: WASM module not compiled yet");return}this.instance=this.module.instance;this.functions=this.module.instance.exports;this.decoder=this.functions._mpeg1_decoder_create(this.bufferSize,this.bufferMode)};MPEG1WASM.prototype.destroy=function(){if(!this.decoder){return}this.functions._mpeg1_decoder_destroy(this.decoder)};MPEG1WASM.prototype.bufferGetIndex=function(){if(!this.decoder){return}return this.functions._mpeg1_decoder_get_index(this.decoder)};MPEG1WASM.prototype.bufferSetIndex=function(index){if(!this.decoder){return}this.functions._mpeg1_decoder_set_index(this.decoder,index)};MPEG1WASM.prototype.bufferWrite=function(buffers){if(!this.decoder){this.initializeWasmDecoder()}var totalLength=0;for(var i=0;i>2));var dcb=this.instance.heapU8.subarray(ptrCb,ptrCb+(this.codedSize>>2));this.destination.render(dy,dcr,dcb,false)}this.advanceDecodedTime(1/this.frameRate);var elapsedTime=JSMpeg.Now()-startTime;if(this.onDecodeCallback){this.onDecodeCallback(this,elapsedTime)}return true};return MPEG1WASM}();JSMpeg.Decoder.MP2Audio=function(){"use strict";var MP2=function(options){JSMpeg.Decoder.Base.call(this,options);this.onDecodeCallback=options.onAudioDecode;var bufferSize=options.audioBufferSize||128*1024;var bufferMode=options.streaming?JSMpeg.BitBuffer.MODE.EVICT:JSMpeg.BitBuffer.MODE.EXPAND;this.bits=new JSMpeg.BitBuffer(bufferSize,bufferMode);this.left=new Float32Array(1152);this.right=new Float32Array(1152);this.sampleRate=44100;this.D=new Float32Array(1024);this.D.set(MP2.SYNTHESIS_WINDOW,0);this.D.set(MP2.SYNTHESIS_WINDOW,512);this.V=new Float32Array(1024);this.U=new Int32Array(32);this.VPos=0;this.allocation=[new Array(32),new Array(32)];this.scaleFactorInfo=[new Uint8Array(32),new Uint8Array(32)];this.scaleFactor=[new Array(32),new Array(32)];this.sample=[new Array(32),new Array(32)];for(var j=0;j<2;j++){for(var i=0;i<32;i++){this.scaleFactor[j][i]=[0,0,0];this.sample[j][i]=[0,0,0]}}};MP2.prototype=Object.create(JSMpeg.Decoder.Base.prototype);MP2.prototype.constructor=MP2;MP2.prototype.decode=function(){var startTime=JSMpeg.Now();var pos=this.bits.index>>3;if(pos>=this.bits.byteLength){return false}var decoded=this.decodeFrame(this.left,this.right);this.bits.index=pos+decoded<<3;if(!decoded){return false}if(this.destination){this.destination.play(this.sampleRate,this.left,this.right)}this.advanceDecodedTime(this.left.length/this.sampleRate);var elapsedTime=JSMpeg.Now()-startTime;if(this.onDecodeCallback){this.onDecodeCallback(this,elapsedTime)}return true};MP2.prototype.getCurrentTime=function(){var enqueuedTime=this.destination?this.destination.enqueuedTime:0;return this.decodedTime-enqueuedTime};MP2.prototype.decodeFrame=function(left,right){var sync=this.bits.read(11),version=this.bits.read(2),layer=this.bits.read(2),hasCRC=!this.bits.read(1);if(sync!==MP2.FRAME_SYNC||version!==MP2.VERSION.MPEG_1||layer!==MP2.LAYER.II){return 0}var bitrateIndex=this.bits.read(4)-1;if(bitrateIndex>13){return 0}var sampleRateIndex=this.bits.read(2);var sampleRate=MP2.SAMPLE_RATE[sampleRateIndex];if(sampleRateIndex===3){return 0}if(version===MP2.VERSION.MPEG_2){sampleRateIndex+=4;bitrateIndex+=14}var padding=this.bits.read(1),privat=this.bits.read(1),mode=this.bits.read(2);var bound=0;if(mode===MP2.MODE.JOINT_STEREO){bound=this.bits.read(2)+1<<2}else{this.bits.skip(2);bound=mode===MP2.MODE.MONO?0:32}this.bits.skip(4);if(hasCRC){this.bits.skip(16)}var bitrate=MP2.BIT_RATE[bitrateIndex],sampleRate=MP2.SAMPLE_RATE[sampleRateIndex],frameSize=144e3*bitrate/sampleRate+padding|0;var tab3=0;var sblimit=0;if(version===MP2.VERSION.MPEG_2){tab3=2;sblimit=30}else{var tab1=mode===MP2.MODE.MONO?0:1;var tab2=MP2.QUANT_LUT_STEP_1[tab1][bitrateIndex];tab3=MP2.QUANT_LUT_STEP_2[tab2][sampleRateIndex];sblimit=tab3&63;tab3>>=6}if(bound>sblimit){bound=sblimit}for(var sb=0;sb>1);var vIndex=this.VPos%128>>1;while(vIndex<1024){for(var i=0;i<32;++i){this.U[i]+=this.D[dIndex++]*this.V[vIndex++]}vIndex+=128-32;dIndex+=64-32}vIndex=128-32+1024-vIndex;dIndex-=512-32;while(vIndex<1024){for(var i=0;i<32;++i){this.U[i]+=this.D[dIndex++]*this.V[vIndex++]}vIndex+=128-32;dIndex+=64-32}var outChannel=ch===0?left:right;for(var j=0;j<32;j++){outChannel[outPos+j]=this.U[j]/2147418112}}outPos+=32}}}this.sampleRate=sampleRate;return frameSize};MP2.prototype.readAllocation=function(sb,tab3){var tab4=MP2.QUANT_LUT_STEP_3[tab3][sb];var qtab=MP2.QUANT_LUT_STEP4[tab4&15][this.bits.read(tab4>>4)];return qtab?MP2.QUANT_TAB[qtab-1]:0};MP2.prototype.readSamples=function(ch,sb,part){var q=this.allocation[ch][sb],sf=this.scaleFactor[ch][sb][part],sample=this.sample[ch][sb],val=0;if(!q){sample[0]=sample[1]=sample[2]=0;return}if(sf===63){sf=0}else{var shift=sf/3|0;sf=MP2.SCALEFACTOR_BASE[sf%3]+(1<>1)>>shift}var adj=q.levels;if(q.group){val=this.bits.read(q.bits);sample[0]=val%adj;val=val/adj|0;sample[1]=val%adj;sample[2]=val/adj|0}else{sample[0]=this.bits.read(q.bits);sample[1]=this.bits.read(q.bits);sample[2]=this.bits.read(q.bits)}var scale=65536/(adj+1)|0;adj=(adj+1>>1)-1;val=(adj-sample[0])*scale;sample[0]=val*(sf>>12)+(val*(sf&4095)+2048>>12)>>12;val=(adj-sample[1])*scale;sample[1]=val*(sf>>12)+(val*(sf&4095)+2048>>12)>>12;val=(adj-sample[2])*scale;sample[2]=val*(sf>>12)+(val*(sf&4095)+2048>>12)>>12};MP2.MatrixTransform=function(s,ss,d,dp){var t01,t02,t03,t04,t05,t06,t07,t08,t09,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33;t01=s[0][ss]+s[31][ss];t02=(s[0][ss]-s[31][ss])*.500602998235;t03=s[1][ss]+s[30][ss];t04=(s[1][ss]-s[30][ss])*.505470959898;t05=s[2][ss]+s[29][ss];t06=(s[2][ss]-s[29][ss])*.515447309923;t07=s[3][ss]+s[28][ss];t08=(s[3][ss]-s[28][ss])*.53104259109;t09=s[4][ss]+s[27][ss];t10=(s[4][ss]-s[27][ss])*.553103896034;t11=s[5][ss]+s[26][ss];t12=(s[5][ss]-s[26][ss])*.582934968206;t13=s[6][ss]+s[25][ss];t14=(s[6][ss]-s[25][ss])*.622504123036;t15=s[7][ss]+s[24][ss];t16=(s[7][ss]-s[24][ss])*.674808341455;t17=s[8][ss]+s[23][ss];t18=(s[8][ss]-s[23][ss])*.744536271002;t19=s[9][ss]+s[22][ss];t20=(s[9][ss]-s[22][ss])*.839349645416;t21=s[10][ss]+s[21][ss];t22=(s[10][ss]-s[21][ss])*.972568237862;t23=s[11][ss]+s[20][ss];t24=(s[11][ss]-s[20][ss])*1.16943993343;t25=s[12][ss]+s[19][ss];t26=(s[12][ss]-s[19][ss])*1.48416461631;t27=s[13][ss]+s[18][ss];t28=(s[13][ss]-s[18][ss])*2.05778100995;t29=s[14][ss]+s[17][ss];t30=(s[14][ss]-s[17][ss])*3.40760841847;t31=s[15][ss]+s[16][ss];t32=(s[15][ss]-s[16][ss])*10.1900081235;t33=t01+t31;t31=(t01-t31)*.502419286188;t01=t03+t29;t29=(t03-t29)*.52249861494;t03=t05+t27;t27=(t05-t27)*.566944034816;t05=t07+t25;t25=(t07-t25)*.64682178336;t07=t09+t23;t23=(t09-t23)*.788154623451;t09=t11+t21;t21=(t11-t21)*1.06067768599;t11=t13+t19;t19=(t13-t19)*1.72244709824;t13=t15+t17;t17=(t15-t17)*5.10114861869;t15=t33+t13;t13=(t33-t13)*.509795579104;t33=t01+t11;t01=(t01-t11)*.601344886935;t11=t03+t09;t09=(t03-t09)*.899976223136;t03=t05+t07;t07=(t05-t07)*2.56291544774;t05=t15+t03;t15=(t15-t03)*.541196100146;t03=t33+t11;t11=(t33-t11)*1.30656296488;t33=t05+t03;t05=(t05-t03)*.707106781187;t03=t15+t11;t15=(t15-t11)*.707106781187;t03+=t15;t11=t13+t07;t13=(t13-t07)*.541196100146;t07=t01+t09;t09=(t01-t09)*1.30656296488;t01=t11+t07;t07=(t11-t07)*.707106781187;t11=t13+t09;t13=(t13-t09)*.707106781187;t11+=t13;t01+=t11;t11+=t07;t07+=t13;t09=t31+t17;t31=(t31-t17)*.509795579104;t17=t29+t19;t29=(t29-t19)*.601344886935;t19=t27+t21;t21=(t27-t21)*.899976223136;t27=t25+t23;t23=(t25-t23)*2.56291544774;t25=t09+t27;t09=(t09-t27)*.541196100146;t27=t17+t19;t19=(t17-t19)*1.30656296488;t17=t25+t27;t27=(t25-t27)*.707106781187;t25=t09+t19;t19=(t09-t19)*.707106781187;t25+=t19;t09=t31+t23;t31=(t31-t23)*.541196100146;t23=t29+t21;t21=(t29-t21)*1.30656296488;t29=t09+t23;t23=(t09-t23)*.707106781187;t09=t31+t21;t31=(t31-t21)*.707106781187;t09+=t31;t29+=t09;t09+=t23;t23+=t31;t17+=t29;t29+=t25;t25+=t09;t09+=t27;t27+=t23;t23+=t19;t19+=t31;t21=t02+t32;t02=(t02-t32)*.502419286188;t32=t04+t30;t04=(t04-t30)*.52249861494;t30=t06+t28;t28=(t06-t28)*.566944034816;t06=t08+t26;t08=(t08-t26)*.64682178336;t26=t10+t24;t10=(t10-t24)*.788154623451;t24=t12+t22;t22=(t12-t22)*1.06067768599;t12=t14+t20;t20=(t14-t20)*1.72244709824;t14=t16+t18;t16=(t16-t18)*5.10114861869;t18=t21+t14;t14=(t21-t14)*.509795579104;t21=t32+t12;t32=(t32-t12)*.601344886935;t12=t30+t24;t24=(t30-t24)*.899976223136;t30=t06+t26;t26=(t06-t26)*2.56291544774;t06=t18+t30;t18=(t18-t30)*.541196100146;t30=t21+t12;t12=(t21-t12)*1.30656296488;t21=t06+t30;t30=(t06-t30)*.707106781187;t06=t18+t12;t12=(t18-t12)*.707106781187;t06+=t12;t18=t14+t26;t26=(t14-t26)*.541196100146;t14=t32+t24;t24=(t32-t24)*1.30656296488;t32=t18+t14;t14=(t18-t14)*.707106781187;t18=t26+t24;t24=(t26-t24)*.707106781187;t18+=t24;t32+=t18;t18+=t14;t26=t14+t24;t14=t02+t16;t02=(t02-t16)*.509795579104;t16=t04+t20;t04=(t04-t20)*.601344886935;t20=t28+t22;t22=(t28-t22)*.899976223136;t28=t08+t10;t10=(t08-t10)*2.56291544774;t08=t14+t28;t14=(t14-t28)*.541196100146;t28=t16+t20;t20=(t16-t20)*1.30656296488;t16=t08+t28;t28=(t08-t28)*.707106781187;t08=t14+t20;t20=(t14-t20)*.707106781187;t08+=t20;t14=t02+t10;t02=(t02-t10)*.541196100146;t10=t04+t22;t22=(t04-t22)*1.30656296488;t04=t14+t10;t10=(t14-t10)*.707106781187;t14=t02+t22;t02=(t02-t22)*.707106781187;t14+=t02;t04+=t14;t14+=t10;t10+=t02;t16+=t04;t04+=t08;t08+=t14;t14+=t28;t28+=t10;t10+=t20;t20+=t02;t21+=t16;t16+=t32;t32+=t04;t04+=t06;t06+=t08;t08+=t18;t18+=t14;t14+=t30;t30+=t28;t28+=t26;t26+=t10;t10+=t12;t12+=t20;t20+=t24;t24+=t02;d[dp+48]=-t33;d[dp+49]=d[dp+47]=-t21;d[dp+50]=d[dp+46]=-t17;d[dp+51]=d[dp+45]=-t16;d[dp+52]=d[dp+44]=-t01;d[dp+53]=d[dp+43]=-t32;d[dp+54]=d[dp+42]=-t29;d[dp+55]=d[dp+41]=-t04;d[dp+56]=d[dp+40]=-t03;d[dp+57]=d[dp+39]=-t06;d[dp+58]=d[dp+38]=-t25;d[dp+59]=d[dp+37]=-t08;d[dp+60]=d[dp+36]=-t11;d[dp+61]=d[dp+35]=-t18;d[dp+62]=d[dp+34]=-t09;d[dp+63]=d[dp+33]=-t14;d[dp+32]=-t05;d[dp+0]=t05;d[dp+31]=-t30;d[dp+1]=t30;d[dp+30]=-t27;d[dp+2]=t27;d[dp+29]=-t28;d[dp+3]=t28;d[dp+28]=-t07;d[dp+4]=t07;d[dp+27]=-t26;d[dp+5]=t26;d[dp+26]=-t23;d[dp+6]=t23;d[dp+25]=-t10;d[dp+7]=t10; 4 | 5 | d[dp+24]=-t15;d[dp+8]=t15;d[dp+23]=-t12;d[dp+9]=t12;d[dp+22]=-t19;d[dp+10]=t19;d[dp+21]=-t20;d[dp+11]=t20;d[dp+20]=-t13;d[dp+12]=t13;d[dp+19]=-t24;d[dp+13]=t24;d[dp+18]=-t31;d[dp+14]=t31;d[dp+17]=-t02;d[dp+15]=t02;d[dp+16]=0};MP2.FRAME_SYNC=2047;MP2.VERSION={MPEG_2_5:0,MPEG_2:2,MPEG_1:3};MP2.LAYER={III:1,II:2,I:3};MP2.MODE={STEREO:0,JOINT_STEREO:1,DUAL_CHANNEL:2,MONO:3};MP2.SAMPLE_RATE=new Uint16Array([44100,48e3,32e3,0,22050,24e3,16e3,0]);MP2.BIT_RATE=new Uint16Array([32,48,56,64,80,96,112,128,160,192,224,256,320,384,8,16,24,32,40,48,56,64,80,96,112,128,144,160]);MP2.SCALEFACTOR_BASE=new Uint32Array([33554432,26632170,21137968]);MP2.SYNTHESIS_WINDOW=new Float32Array([0,-.5,-.5,-.5,-.5,-.5,-.5,-1,-1,-1,-1,-1.5,-1.5,-2,-2,-2.5,-2.5,-3,-3.5,-3.5,-4,-4.5,-5,-5.5,-6.5,-7,-8,-8.5,-9.5,-10.5,-12,-13,-14.5,-15.5,-17.5,-19,-20.5,-22.5,-24.5,-26.5,-29,-31.5,-34,-36.5,-39.5,-42.5,-45.5,-48.5,-52,-55.5,-58.5,-62.5,-66,-69.5,-73.5,-77,-80.5,-84.5,-88,-91.5,-95,-98,-101,-104,106.5,109,111,112.5,113.5,114,114,113.5,112,110.5,107.5,104,100,94.5,88.5,81.5,73,63.5,53,41.5,28.5,14.5,-1,-18,-36,-55.5,-76.5,-98.5,-122,-147,-173.5,-200.5,-229.5,-259.5,-290.5,-322.5,-355.5,-389.5,-424,-459.5,-495.5,-532,-568.5,-605,-641.5,-678,-714,-749,-783.5,-817,-849,-879.5,-908.5,-935,-959.5,-981,-1000.5,-1016,-1028.5,-1037.5,-1042.5,-1043.5,-1040,-1031.5,1018.5,1e3,976,946.5,911,869.5,822,767.5,707,640,565.5,485,397,302.5,201,92.5,-22.5,-144,-272.5,-407,-547.5,-694,-846,-1003,-1165,-1331.5,-1502,-1675.5,-1852.5,-2031.5,-2212.5,-2394,-2576.5,-2758.5,-2939.5,-3118.5,-3294.5,-3467.5,-3635.5,-3798.5,-3955,-4104.5,-4245.5,-4377.5,-4499,-4609.5,-4708,-4792.5,-4863.5,-4919,-4958,-4979.5,-4983,-4967.5,-4931.5,-4875,-4796,-4694.5,-4569.5,-4420,-4246,-4046,-3820,-3567,3287,2979.5,2644,2280.5,1888,1467.5,1018.5,541,35,-499,-1061,-1650,-2266.5,-2909,-3577,-4270,-4987.5,-5727.5,-6490,-7274,-8077.5,-8899.5,-9739,-10594.5,-11464.5,-12347,-13241,-14144.5,-15056,-15973.5,-16895.5,-17820,-18744.5,-19668,-20588,-21503,-22410.5,-23308.5,-24195,-25068.5,-25926.5,-26767,-27589,-28389,-29166.5,-29919,-30644.5,-31342,-32009.5,-32645,-33247,-33814.5,-34346,-34839.5,-35295,-35710,-36084.5,-36417.5,-36707.5,-36954,-37156.5,-37315,-37428,-37496,37519,37496,37428,37315,37156.5,36954,36707.5,36417.5,36084.5,35710,35295,34839.5,34346,33814.5,33247,32645,32009.5,31342,30644.5,29919,29166.5,28389,27589,26767,25926.5,25068.5,24195,23308.5,22410.5,21503,20588,19668,18744.5,17820,16895.5,15973.5,15056,14144.5,13241,12347,11464.5,10594.5,9739,8899.5,8077.5,7274,6490,5727.5,4987.5,4270,3577,2909,2266.5,1650,1061,499,-35,-541,-1018.5,-1467.5,-1888,-2280.5,-2644,-2979.5,3287,3567,3820,4046,4246,4420,4569.5,4694.5,4796,4875,4931.5,4967.5,4983,4979.5,4958,4919,4863.5,4792.5,4708,4609.5,4499,4377.5,4245.5,4104.5,3955,3798.5,3635.5,3467.5,3294.5,3118.5,2939.5,2758.5,2576.5,2394,2212.5,2031.5,1852.5,1675.5,1502,1331.5,1165,1003,846,694,547.5,407,272.5,144,22.5,-92.5,-201,-302.5,-397,-485,-565.5,-640,-707,-767.5,-822,-869.5,-911,-946.5,-976,-1e3,1018.5,1031.5,1040,1043.5,1042.5,1037.5,1028.5,1016,1000.5,981,959.5,935,908.5,879.5,849,817,783.5,749,714,678,641.5,605,568.5,532,495.5,459.5,424,389.5,355.5,322.5,290.5,259.5,229.5,200.5,173.5,147,122,98.5,76.5,55.5,36,18,1,-14.5,-28.5,-41.5,-53,-63.5,-73,-81.5,-88.5,-94.5,-100,-104,-107.5,-110.5,-112,-113.5,-114,-114,-113.5,-112.5,-111,-109,106.5,104,101,98,95,91.5,88,84.5,80.5,77,73.5,69.5,66,62.5,58.5,55.5,52,48.5,45.5,42.5,39.5,36.5,34,31.5,29,26.5,24.5,22.5,20.5,19,17.5,15.5,14.5,13,12,10.5,9.5,8.5,8,7,6.5,5.5,5,4.5,4,3.5,3.5,3,2.5,2.5,2,2,1.5,1.5,1,1,1,1,.5,.5,.5,.5,.5,.5]);MP2.QUANT_LUT_STEP_1=[[0,0,1,1,1,2,2,2,2,2,2,2,2,2],[0,0,0,0,0,0,1,1,1,2,2,2,2,2]];MP2.QUANT_TAB={A:27|64,B:30|64,C:8,D:12};MP2.QUANT_LUT_STEP_2=[[MP2.QUANT_TAB.C,MP2.QUANT_TAB.C,MP2.QUANT_TAB.D],[MP2.QUANT_TAB.A,MP2.QUANT_TAB.A,MP2.QUANT_TAB.A],[MP2.QUANT_TAB.B,MP2.QUANT_TAB.A,MP2.QUANT_TAB.B]];MP2.QUANT_LUT_STEP_3=[[68,68,52,52,52,52,52,52,52,52,52,52],[67,67,67,66,66,66,66,66,66,66,66,49,49,49,49,49,49,49,49,49,49,49,49,32,32,32,32,32,32,32],[69,69,69,69,52,52,52,52,52,52,52,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36]];MP2.QUANT_LUT_STEP4=[[0,1,2,17],[0,1,2,3,4,5,6,17],[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,17],[0,1,3,5,6,7,8,9,10,11,12,13,14,15,16,17],[0,1,2,4,5,6,7,8,9,10,11,12,13,14,15,17],[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]];MP2.QUANT_TAB=[{levels:3,group:1,bits:5},{levels:5,group:1,bits:7},{levels:7,group:0,bits:3},{levels:9,group:1,bits:10},{levels:15,group:0,bits:4},{levels:31,group:0,bits:5},{levels:63,group:0,bits:6},{levels:127,group:0,bits:7},{levels:255,group:0,bits:8},{levels:511,group:0,bits:9},{levels:1023,group:0,bits:10},{levels:2047,group:0,bits:11},{levels:4095,group:0,bits:12},{levels:8191,group:0,bits:13},{levels:16383,group:0,bits:14},{levels:32767,group:0,bits:15},{levels:65535,group:0,bits:16}];return MP2}();JSMpeg.Decoder.MP2AudioWASM=function(){"use strict";var MP2WASM=function(options){JSMpeg.Decoder.Base.call(this,options);this.onDecodeCallback=options.onAudioDecode;this.module=options.wasmModule;this.bufferSize=options.audioBufferSize||128*1024;this.bufferMode=options.streaming?JSMpeg.BitBuffer.MODE.EVICT:JSMpeg.BitBuffer.MODE.EXPAND;this.sampleRate=0};MP2WASM.prototype=Object.create(JSMpeg.Decoder.Base.prototype);MP2WASM.prototype.constructor=MP2WASM;MP2WASM.prototype.initializeWasmDecoder=function(){if(!this.module.instance){console.warn("JSMpeg: WASM module not compiled yet");return}this.instance=this.module.instance;this.functions=this.module.instance.exports;this.decoder=this.functions._mp2_decoder_create(this.bufferSize,this.bufferMode)};MP2WASM.prototype.destroy=function(){if(!this.decoder){return}this.functions._mp2_decoder_destroy(this.decoder)};MP2WASM.prototype.bufferGetIndex=function(){if(!this.decoder){return}return this.functions._mp2_decoder_get_index(this.decoder)};MP2WASM.prototype.bufferSetIndex=function(index){if(!this.decoder){return}this.functions._mp2_decoder_set_index(this.decoder,index)};MP2WASM.prototype.bufferWrite=function(buffers){if(!this.decoder){this.initializeWasmDecoder()}var totalLength=0;for(var i=0;i>4<<4;this.gl.viewport(0,0,codedWidth,this.height)};WebGLRenderer.prototype.createTexture=function(index,name){var gl=this.gl;var texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);gl.uniform1i(gl.getUniformLocation(this.program,name),index);return texture};WebGLRenderer.prototype.createProgram=function(vsh,fsh){var gl=this.gl;var program=gl.createProgram();gl.attachShader(program,this.compileShader(gl.VERTEX_SHADER,vsh));gl.attachShader(program,this.compileShader(gl.FRAGMENT_SHADER,fsh));gl.linkProgram(program);gl.useProgram(program);return program};WebGLRenderer.prototype.compileShader=function(type,source){var gl=this.gl;var shader=gl.createShader(type);gl.shaderSource(shader,source);gl.compileShader(shader);if(!gl.getShaderParameter(shader,gl.COMPILE_STATUS)){throw new Error(gl.getShaderInfoLog(shader))}return shader};WebGLRenderer.prototype.allowsClampedTextureData=function(){var gl=this.gl;var texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,texture);gl.texImage2D(gl.TEXTURE_2D,0,gl.LUMINANCE,1,1,0,gl.LUMINANCE,gl.UNSIGNED_BYTE,new Uint8ClampedArray([0]));return gl.getError()===0};WebGLRenderer.prototype.renderProgress=function(progress){var gl=this.gl;gl.useProgram(this.loadingProgram);var loc=gl.getUniformLocation(this.loadingProgram,"progress");gl.uniform1f(loc,progress);gl.drawArrays(gl.TRIANGLE_STRIP,0,4)};WebGLRenderer.prototype.render=function(y,cb,cr,isClampedArray){if(!this.enabled){return}var gl=this.gl;var w=this.width+15>>4<<4,h=this.height,w2=w>>1,h2=h>>1;if(isClampedArray&&this.shouldCreateUnclampedViews){y=new Uint8Array(y.buffer),cb=new Uint8Array(cb.buffer),cr=new Uint8Array(cr.buffer)}gl.useProgram(this.program);this.updateTexture(gl.TEXTURE0,this.textureY,w,h,y);this.updateTexture(gl.TEXTURE1,this.textureCb,w2,h2,cb);this.updateTexture(gl.TEXTURE2,this.textureCr,w2,h2,cr);gl.drawArrays(gl.TRIANGLE_STRIP,0,4)};WebGLRenderer.prototype.updateTexture=function(unit,texture,w,h,data){var gl=this.gl;gl.activeTexture(unit);gl.bindTexture(gl.TEXTURE_2D,texture);if(this.hasTextureData[unit]){gl.texSubImage2D(gl.TEXTURE_2D,0,0,0,w,h,gl.LUMINANCE,gl.UNSIGNED_BYTE,data)}else{this.hasTextureData[unit]=true;gl.texImage2D(gl.TEXTURE_2D,0,gl.LUMINANCE,w,h,0,gl.LUMINANCE,gl.UNSIGNED_BYTE,data)}};WebGLRenderer.IsSupported=function(){try{if(!window.WebGLRenderingContext){return false}var canvas=document.createElement("canvas");return!!(canvas.getContext("webgl")||canvas.getContext("experimental-webgl"))}catch(err){return false}};WebGLRenderer.SHADER={FRAGMENT_YCRCB_TO_RGBA:["precision mediump float;","uniform sampler2D textureY;","uniform sampler2D textureCb;","uniform sampler2D textureCr;","varying vec2 texCoord;","mat4 rec601 = mat4(","1.16438, 0.00000, 1.59603, -0.87079,","1.16438, -0.39176, -0.81297, 0.52959,","1.16438, 2.01723, 0.00000, -1.08139,","0, 0, 0, 1",");","void main() {","float y = texture2D(textureY, texCoord).r;","float cb = texture2D(textureCb, texCoord).r;","float cr = texture2D(textureCr, texCoord).r;","gl_FragColor = vec4(y, cr, cb, 1.0) * rec601;","}"].join("\n"),FRAGMENT_LOADING:["precision mediump float;","uniform float progress;","varying vec2 texCoord;","void main() {","float c = ceil(progress-(1.0-texCoord.y));","gl_FragColor = vec4(c,c,c,1);","}"].join("\n"),VERTEX_IDENTITY:["attribute vec2 vertex;","varying vec2 texCoord;","void main() {","texCoord = vertex;","gl_Position = vec4((vertex * 2.0 - 1.0) * vec2(1, -1), 0.0, 1.0);","}"].join("\n")};return WebGLRenderer}();JSMpeg.Renderer.Canvas2D=function(){"use strict";var CanvasRenderer=function(options){this.canvas=options.canvas||document.createElement("canvas");this.width=this.canvas.width;this.height=this.canvas.height;this.enabled=true;this.context=this.canvas.getContext("2d")};CanvasRenderer.prototype.destroy=function(){};CanvasRenderer.prototype.resize=function(width,height){this.width=width|0;this.height=height|0;this.canvas.width=this.width;this.canvas.height=this.height;this.imageData=this.context.getImageData(0,0,this.width,this.height);JSMpeg.Fill(this.imageData.data,255)};CanvasRenderer.prototype.renderProgress=function(progress){var w=this.canvas.width,h=this.canvas.height,ctx=this.context;ctx.fillStyle="#222";ctx.fillRect(0,0,w,h);ctx.fillStyle="#fff";ctx.fillRect(0,h-h*progress,w,h*progress)};CanvasRenderer.prototype.render=function(y,cb,cr){this.YCbCrToRGBA(y,cb,cr,this.imageData.data);this.context.putImageData(this.imageData,0,0)};CanvasRenderer.prototype.YCbCrToRGBA=function(y,cb,cr,rgba){if(!this.enabled){return}var w=this.width+15>>4<<4,w2=w>>1;var yIndex1=0,yIndex2=w,yNext2Lines=w+(w-this.width);var cIndex=0,cNextLine=w2-(this.width>>1);var rgbaIndex1=0,rgbaIndex2=this.width*4,rgbaNext2Lines=this.width*4;var cols=this.width>>1,rows=this.height>>1;var ccb,ccr,r,g,b;for(var row=0;row>8)-179;g=(ccr*88>>8)-44+(ccb*183>>8)-91;b=ccr+(ccr*198>>8)-227;var y1=y[yIndex1++];var y2=y[yIndex1++];rgba[rgbaIndex1]=y1+r;rgba[rgbaIndex1+1]=y1-g;rgba[rgbaIndex1+2]=y1+b;rgba[rgbaIndex1+4]=y2+r;rgba[rgbaIndex1+5]=y2-g;rgba[rgbaIndex1+6]=y2+b;rgbaIndex1+=8;var y3=y[yIndex2++];var y4=y[yIndex2++];rgba[rgbaIndex2]=y3+r;rgba[rgbaIndex2+1]=y3-g;rgba[rgbaIndex2+2]=y3+b;rgba[rgbaIndex2+4]=y4+r;rgba[rgbaIndex2+5]=y4-g;rgba[rgbaIndex2+6]=y4+b;rgbaIndex2+=8}yIndex1+=yNext2Lines;yIndex2+=yNext2Lines;rgbaIndex1+=rgbaNext2Lines;rgbaIndex2+=rgbaNext2Lines;cIndex+=cNextLine}};return CanvasRenderer}();JSMpeg.AudioOutput.WebAudio=function(){"use strict";var WebAudioOut=function(options){this.context=WebAudioOut.CachedContext=WebAudioOut.CachedContext||new(window.AudioContext||window.webkitAudioContext);this.gain=this.context.createGain();this.destination=this.gain;this.gain.connect(this.context.destination);this.context._connections=(this.context._connections||0)+1;this.startTime=0;this.buffer=null;this.wallclockStartTime=0;this.volume=1;this.enabled=true;this.unlocked=!WebAudioOut.NeedsUnlocking();Object.defineProperty(this,"enqueuedTime",{get:this.getEnqueuedTime})};WebAudioOut.prototype.destroy=function(){this.gain.disconnect();this.context._connections--;if(this.context._connections===0){this.context.close();WebAudioOut.CachedContext=null}};WebAudioOut.prototype.play=function(sampleRate,left,right){if(!this.enabled){return}if(!this.unlocked){var ts=JSMpeg.Now();if(this.wallclockStartTimethis.memory.buffer.byteLength){var bytesNeeded=this.brk-this.memory.buffer.byteLength;var pagesNeeded=Math.ceil(bytesNeeded/this.pageSize);this.memory.grow(pagesNeeded);this.createHeapViews()}return previousBrk};WASM.prototype.c_abort=function(size){console.warn("JSMPeg: WASM abort",arguments)};WASM.prototype.c_assertFail=function(size){console.warn("JSMPeg: WASM ___assert_fail",arguments)};WASM.prototype.readDylinkSection=function(buffer){var bytes=new Uint8Array(buffer);var next=0;var readVarUint=function(){var ret=0;var mul=1;while(1){var byte=bytes[next++];ret+=(byte&127)*mul;mul*=128;if(!(byte&128)){return ret}}};var matchNextBytes=function(expected){for(var i=0;i