如何在IE浏览器播放RTSP或RTMP流

作者: 3f270e490cb7 | 来源:发表于2019-03-21 15:13 被阅读2次

好多开发者一直苦恼于如何在IE浏览器环境下，构建低延迟的RTSP或RTMP播放，对于RTSP流来说，好多公司通常的做法是把RTSP转RTMP，然后分发到RTMP服务器，然后服务器转http-flv出来，浏览器直接播放http-flv流，亦或通过flash控件直接播放RTMP流，还有就是，转hls流出来，缺点是hls流延迟更大。

以上方案未尝不可，如果对播放体验和延迟要求更高，最简单的做法是直接在IE浏览器下加载activex控件。

大牛直播SDK在现有SDK的基础上，扩展了ocx控件，用于IE浏览器下的低延迟RTMP或RTSP播放，在足够稳定的前提下，也可能是行业内功能支持最全和延迟最低的RTMP和RTSP播放器。

废话不多说，先上图：

1. 功能齐全的单画面RTMP流或RTSP流播放：

image

2. 同时播放4路RTMP流或RTSP流画面：

image

对应封装接口：

    ULONG NT_SetLogPath();
    ULONG NT_Open();
    ULONG NT_Close();
    ULONG NT_StartPlay();
    ULONG NT_StopPlay();
    ULONG NT_SetMute(LONG is_mute);
    ULONG NT_SetURL(LPCTSTR url);
    ULONG NT_SetBuffer(LONG buffer);
    ULONG NT_SetRTSPTcpMode(LONG isUsingTCP);
    ULONG NT_SetRtspTimeout(LONG timeout);
    ULONG NT_SetRtspAutoSwitchTcpUdp(LONG is_auto_switch_tcp_udp);
    ULONG NT_SetFastStartup(LONG isFastStartup);
    ULONG NT_SetLowLatencyMode(LONG mode);
    ULONG NT_SetFlipVertical(LONG is_flip);
    ULONG NT_SetFlipHorizontal(LONG is_flip);
    ULONG NT_SetRotation(LONG degress);
    ULONG NT_SwitchURL(LPCTSTR url);
    ULONG NT_SetCaptureImagePath(LPCTSTR path);
    ULONG NT_CaptureImage();
    ULONG NT_SetRecorderDirectory(LPCTSTR dir);
    ULONG NT_SetRecorderFileMaxSize(ULONG size);
    ULONG NT_NT_SP_RecorderFileNameRuler(ULONG type, LPCTSTR file_name_prefix, LONG append_date, LONG append_time);
    ULONG NT_SetRecorderAudioTranscodeAAC(LONG is_transcode);
    ULONG NT_SetRecorderVideo(LONG is_record_video);
    ULONG NT_SetRecorderAudio(LONG is_record_audio);
    ULONG NT_StartRecorder();
    ULONG NT_StopRecorder();
    ULONG NT_FullScreen();
    void OnSDKEventReceived(ULONG event_id, ULONG param1);
    void OnVideoSizeReceived(ULONG width, ULONG height);

image.gif

设置LOG存放路径：

ULONG NT_SetLogPath(LPCTSTR log_path)

请于NT_Open() 之前调用，代码示例：

var obj = document.getElementById("SmartPlayerActiveX");

//如需记录log文件，请确保log路径存在, 如多级目录, 可按照"D:\\Daniulive\\log"类似格式设定, 记录文件名: smart_sdk.log

obj.NT_SetLogPath("D:\\");

image.gif

接口说明：

ULONG NT_Open();

打开player实例；
2. ULONG NT_Close();

关闭player实例；
3. ULONG NT_StartPlay();

开始播放；
4. ULONG NT_StopPlay();

停止播放；
5. ULONG NT_SetMute(LONG is_mute);

设置实时静音；
6. ULONG NT_SetURL(LPCTSTR url);

设置播放的RTMP或RTSP url；
7. ULONG NT_SetBuffer(LONG buffer);

设置buffer time，缓冲时间，单位：毫秒；
8. ULONG NT_SetRTSPTcpMode(LONG isUsingTCP);

设置RTSP TCP/UDP播放模式；
9. ULONG NT_SetRtspTimeout(LONG timeout);

设置RTSP超时时间；
10. ULONG NT_SetRtspAutoSwitchTcpUdp(LONG is_auto_switch_tcp_udp);

设置是否自动切换TCP/UDP模式；
11. ULONG NT_SetFastStartup(LONG isFastStartup);

设置是否快速启动；
12. ULONG NT_SetLowLatencyMode(LONG mode);

设置是否低延迟模式播放；
13. ULONG NT_SetFlipVertical(LONG is_flip);

设置垂直反转模式图像；
14. ULONG NT_SetFlipHorizontal(LONG is_flip);

设置水平反转图像；
15. ULONG NT_SetRotation(LONG degress);

设置旋转图像，可设定角度：0度 90度 180度 270度；
16. ULONG NT_SwitchURL(LPCTSTR url);

设置快速切换RTSP/RTMP url；
17. ULONG NT_SetCaptureImagePath(LPCTSTR path);

设置快照保存位置；
18. ULONG NT_CaptureImage();

设置实时快照功能；
19. ULONG NT_SetRecorderDirectory(LPCTSTR dir);

设置录像保存位置；
20. ULONG NT_SetRecorderFileMaxSize(ULONG size);

设置单个录像文件最大size，单位：兆；
21. ULONG NT_NT_SP_RecorderFileNameRuler(ULONG type, LPCTSTR file_name_prefix, LONG append_date, LONG append_time);

设置录像文件命名规则：是否需要前缀、是否添加日期、是否添加时间；
22. ULONG NT_SetRecorderAudioTranscodeAAC(LONG is_transcode);

设置录像音频文件是否转AAC后录制，支持PCMA/PCMU/SPEEX转AAC后录制文件；
23. ULONG NT_SetRecorderVideo(LONG is_record_video);

设置是否录制视频；
24. ULONG NT_SetRecorderAudio(LONG is_record_audio);

设置是否录制音频；
25. ULONG NT_StartRecorder();

开始录像；
26. ULONG NT_StopRecorder();

停止录像；
27. ULONG NT_FullScreen();

全屏显示窗口。

**事件Event： **

1. void OnSDKEventReceived(ULONG event_id, ULONG param1);

回调网络状态、buffering状态、下载速度等；

事件类型：

<script>
    var NT_EVENT_ID_SMART_PLAYER_SDK = 0x01000000;
    var NT_SP_E_EVENT_ID_BASE = NT_EVENT_ID_SMART_PLAYER_SDK;
    var NT_SP_E_EVENT_ID_CONNECTING             = NT_SP_E_EVENT_ID_BASE | 0x2;  /*连接中*/
    var NT_SP_E_EVENT_ID_CONNECTION_FAILED      = NT_SP_E_EVENT_ID_BASE | 0x3;  /*连接失败*/
    var NT_SP_E_EVENT_ID_CONNECTED              = NT_SP_E_EVENT_ID_BASE | 0x4;  /*已连接*/
    var NT_SP_E_EVENT_ID_DISCONNECTED           = NT_SP_E_EVENT_ID_BASE | 0x5;  /*断开连接*/
    var NT_SP_E_EVENT_ID_NO_MEDIADATA_RECEIVED  = NT_SP_E_EVENT_ID_BASE | 0x8;  /*收不到RTMP数据*/
    var NT_SP_E_EVENT_ID_RTSP_STATUS_CODE       = NT_SP_E_EVENT_ID_BASE | 0xB;  /*rtsp status code上报, 目前只上报401, param1表示status code*/

    /* 接下来请从0x81开始*/
    var NT_SP_E_EVENT_ID_START_BUFFERING = NT_SP_E_EVENT_ID_BASE | 0x81; /*开始缓冲*/
    var NT_SP_E_EVENT_ID_BUFFERING       = NT_SP_E_EVENT_ID_BASE | 0x82; /*缓冲中, param1 表示百分比进度*/
    var NT_SP_E_EVENT_ID_STOP_BUFFERING  = NT_SP_E_EVENT_ID_BASE | 0x83; /*停止缓冲*/

    var NT_SP_E_EVENT_ID_DOWNLOAD_SPEED  = NT_SP_E_EVENT_ID_BASE | 0x91; /*下载速度， param1表示下载速度，单位是(Byte/s)*/

    var NT_SP_E_EVENT_ID_PLAYBACK_REACH_EOS     = NT_SP_E_EVENT_ID_BASE | 0xa1; /*播放结束, 直播流没有这个事件，点播流才有*/
    var NT_SP_E_EVENT_ID_RECORDER_REACH_EOS     = NT_SP_E_EVENT_ID_BASE | 0xa2; /*录像结束, 直播流没有这个事件, 点播流才有*/
    var NT_SP_E_EVENT_ID_PULLSTREAM_REACH_EOS   = NT_SP_E_EVENT_ID_BASE | 0xa3; /*拉流结束, 直播流没有这个事件，点播流才有*/
    var NT_SP_E_EVENT_ID_DURATION = NT_SP_E_EVENT_ID_BASE | 0xa8; /*视频时长，如果是直播，则不上报，如果是点播的话, 若能从视频源获取视频时长的话，则上报， param1表示视频时长，单位是毫秒(ms)*/
</script>

image.gif

调用展示：

<script language='javascript' for="SmartPlayerActiveX"  event="OnSDKEventReceived(event_id, param1)">
        // Test 1 - statically load the script (This is the basis for the hack)
        // Works on IE8, IE9, IE10 and IE11

        var show_str = "";

        var connection_status = event_id;

        if (connection_status != 0)
        {
            show_str += "链接状态: ";

            if (NT_SP_E_EVENT_ID_CONNECTING == connection_status)
            {
                show_str += "链接中";
            }
            else if (NT_SP_E_EVENT_ID_CONNECTION_FAILED == connection_status)
            {
                show_str += "链接失败";
            }
            else if (NT_SP_E_EVENT_ID_CONNECTED == connection_status)
            {
                show_str += "链接成功";
            }
            else if (NT_SP_E_EVENT_ID_DISCONNECTED == connection_status)
            {
                show_str += "链接断开";
            }
            else if (NT_SP_E_EVENT_ID_NO_MEDIADATA_RECEIVED == connection_status)
            {
                show_str += "收不到数据";
            }
        }

        var download_speed = -1;

        if (NT_SP_E_EVENT_ID_DOWNLOAD_SPEED == event_id)
        {
            download_speed = param1;
        }

        if (download_speed != -1)
        {
            show_str += "下载速度:" + (download_speed * 8 / 1000).toFixed(0) + "kbps " + (download_speed / 1024).toFixed(0) + "KB/s";
        }

        var buffer_status = 0;

        if (NT_SP_E_EVENT_ID_START_BUFFERING == event_id
        || NT_SP_E_EVENT_ID_BUFFERING == event_id
        || NT_SP_E_EVENT_ID_STOP_BUFFERING == event_id)
        {
            buffer_status = event_id;
        }

        if (buffer_status != 0)
        {
            show_str += "缓冲状态: ";

            if (NT_SP_E_EVENT_ID_START_BUFFERING == buffer_status)
            {
                show_str += "开始缓冲";
            }
            else if (NT_SP_E_EVENT_ID_BUFFERING == buffer_status)
            {
                show_str += "缓冲中" + param1 + "%";
            }
            else if (NT_SP_E_EVENT_ID_STOP_BUFFERING == buffer_status)
            {
                show_str += "结束缓冲";
            }
        }

        var EventMsgText = document.getElementById("EventMsg");

        EventMsgText.innerHTML = show_str;
    </script>

image.gif

2. void OnVideoSizeReceived(ULONG width, ULONG height);

回调视频宽高信息。

调用展示：

<script language='javascript' for="SmartPlayerActiveX"  event="OnVideoSizeReceived(width, height)">
    // Test 1 - statically load the script (This is the basis for the hack)
    // Works on IE8, IE9, IE10 and IE11

    var VideoResolutionText = document.getElementById("VideoResolution");

    VideoResolutionText.innerHTML = width + "*" + height;
</script>

image.gif

SDK接口调用实例：

播放和录像调用示例：

var is_player_opened = false;
var is_playing = false;
var is_recording = false;

function OpenPlayer()
{              
    if(is_player_opened)
    {
        return;
    }

    var obj = document.getElementById("SmartPlayerActiveX");

    //如需记录log文件，请确保log路径存在, 如多级目录, 可按照"D:\\Daniulive\\log"类似格式设定, 记录文件名: smart_sdk.log
    obj.NT_SetLogPath("D:\\");

    var ret = obj.NT_Open();

    if(ret == 0)
    {   
        //设置TCP/UDP模式
        var rtsp_tcp_mode = document.getElementById("rtspTcpMode").checked ? 1 : 0;
        obj.NT_SetRTSPTcpMode(rtsp_tcp_mode);

        //设置RTSP超时时间
        var rtsp_timeout = document.getElementById("rtspTimeout").value;
        obj.NT_SetRtspTimeout(rtsp_timeout);

        //设置是否自动切换TCP-UDP模式
        var rtsp_auto_switch_tcp_udp = document.getElementById("rtspAutoSwitchTcpUdp").checked ? 1 : 0;
        obj.NT_SetRtspAutoSwitchTcpUdp(rtsp_auto_switch_tcp_udp);

        //设置是否快速启动
        var fast_startup_mode = document.getElementById("fastStartupMode").checked ? 1 : 0;
        obj.NT_SetFastStartup(fast_startup_mode);

        //设置需要播放或录像的RTSP/RTMP url
        var url = document.getElementById("playorReocordUrl").value;
        obj.NT_SetURL(url);

        //设置实时截图路径(可自行设置或选取系统存在的文件夹), 如多级目录可按照"D:\\Daniulive\\image"类似格式设定
        //var image_path = "D:\\";
        obj.NT_SetCaptureImagePath(image_path);

        is_player_opened = true;
    }
}

function ClosePlayer()
{
    if(is_player_opened)
    {
        var obj = document.getElementById("SmartPlayerActiveX");
        obj.NT_Close();

        var EventMsgText = document.getElementById("EventMsg"); 
        EventMsgText.innerHTML = "";

        is_player_opened = false;
    }
}

function OnBnClickedPlay()
{
    if(!isIE())
    {
        alert("非IE浏览器，请用IE打开播放控件..");
        return;
    }

    if(!isActiveXInstalled())
    {
        alert("控件未加载，请先加载控件..");
        return;
    }

    if(is_playing)
    {
        StopPlayback();
    }
    else
    {
        StartPlayback();
    }
}

//开始播放
function StartPlayback() {

    if(!is_playing && !is_recording)
    {
        OpenPlayer();
    }

    var obj = document.getElementById("SmartPlayerActiveX");

    //设置是否启用低延迟模式
    var low_latency_mode = document.getElementById("lowlatencyMode").checked ? 1 : 0;
    obj.NT_SetLowLatencyMode(low_latency_mode);

    //设置缓冲时间
    var buffer_time = document.getElementById("bufferTime").value;
    obj.NT_SetBuffer(buffer_time);

    var ret = obj.NT_StartPlay();

    if(ret == 0)
    {
        is_playing = true;  

        var playBtnText = document.getElementById("playBtn");

        playBtnText.innerHTML = "停止播放";
    }       
}

//停止播放
function StopPlayback() {

    if(!is_playing)
    {
        return;
    }

    var obj = document.getElementById("SmartPlayerActiveX");

    obj.NT_StopPlay();

    is_playing = false;

    var playBtnText = document.getElementById("playBtn");

    playBtnText.innerHTML = "开始播放";

    if(!is_recording)
    {
        ClosePlayer();
    }

    var VideoResolutionText = document.getElementById("VideoResolution");

    VideoResolutionText.innerHTML = "";
}

function OnBnClickedRecord()
{
    if(!isIE())
    {
        alert("非IE浏览器，请用IE打开播放控件..");
        return;
    }

    if(!isActiveXInstalled())
    {
        alert("控件未加载，请先加载控件..");
        return;
    }

    if(is_recording)
    {
        StopRecorder();
    }
    else
    {
        StartRecorder();
    }
}

//开始录像
function StartRecorder() {

    if(!is_playing && !is_recording)
    {
        OpenPlayer();
    }

    var obj = document.getElementById("SmartPlayerActiveX");

    //设置实时录像存放路径(可自行设置或选取系统存在的文件夹), 如多级目录可按照"D:\\Daniulive\\rec"类似格式设定
    var rec_dir = "D:\\";
    obj.NT_SetRecorderDirectory(rec_dir);

    var rec_max_size = 200;
    obj.NT_SetRecorderFileMaxSize(rec_max_size);

    var type = 0;
    var file_name_prefix = "daniulive";
    var append_date = 1;
    var append_time = 1;
    obj.NT_NT_SP_RecorderFileNameRuler(type, file_name_prefix, append_date, append_time);

    var is_transcode = 1;
    obj.NT_SetRecorderAudioTranscodeAAC(is_transcode);

    var is_record_video = 1;
    obj.NT_SetRecorderVideo(is_record_video);

    var is_record_audio = 1;
    obj.NT_SetRecorderAudio(is_record_audio);

    var ret = obj.NT_StartRecorder();

    if(ret == 0)
    {
        is_recording = true;

        var recordBtnText = document.getElementById("recordBtn");

        recordBtnText.innerHTML = "停止录像";
    }
}

//停止录像
function StopRecorder() {

    if(!is_recording)
    {
        return;
    }

    var obj = document.getElementById("SmartPlayerActiveX");

    obj.NT_StopRecorder();

    is_recording = false;

    var recordBtnText = document.getElementById("recordBtn");

    recordBtnText.innerHTML = "开始录像";

    if(!is_playing)
    {
        ClosePlayer();
    }
}

image.gif

快速切换URL调用示例：

//快速切换播放URL
function SwitchUrl() {

    if(!is_playing)
    {
        return;
    }

    var obj = document.getElementById("SmartPlayerActiveX");

    var switch_url = document.getElementById("playorReocordUrl").value;
    obj.NT_SwitchURL(switch_url);
}

image.gif

实时静音调用示例：

//实时静音
var is_mute = 1;    
function SetMute() {

    var obj = document.getElementById("SmartPlayerActiveX");

    obj.NT_SetMute(is_mute);

    var muteText = document.getElementById("MuteBtn");

    if(is_mute == 1 )
    {
        is_mute = 0;
        muteText.innerHTML = "取消静音";
    }
    else
    {
        is_mute = 1;
        muteText.innerHTML  = "实时静音";
    }
}

image.gif

视频view垂直反转、水平反转、旋转调用示例：

//垂直反转
var is_flip_vertical = 1;
function SetFlipVertical() {

    var obj = document.getElementById("SmartPlayerActiveX");

    obj.NT_SetFlipVertical(is_flip_vertical);

    var flipVerticalText = document.getElementById("FlipVerticalBtn");

    if(is_flip_vertical == 1 )
    {
        is_flip_vertical = 0;
        flipVerticalText.innerHTML = "取消反转";
    }
    else
    {
        is_flip_vertical = 1;
        flipVerticalText.innerHTML  = "垂直反转";
    }
}

//水平反转
var is_flip_horizontal = 1;
function SetFlipHorizontal() {

    var obj = document.getElementById("SmartPlayerActiveX");

    obj.NT_SetFlipHorizontal(is_flip_horizontal);

    var flipHorizontalText = document.getElementById("FlipHorizontalBtn");

    if(is_flip_horizontal == 1 )
    {
        is_flip_horizontal = 0;
        flipHorizontalText.innerHTML = "取消反转";
    }
    else
    {
        is_flip_horizontal = 1;
        flipHorizontalText.innerHTML  = "水平反转";
    }
}

//视频view旋转
var rotate_degrees_ = 0;
function SetRotation() {

    rotate_degrees_ += 90;
    rotate_degrees_ = rotate_degrees_ % 360;

    var obj = document.getElementById("SmartPlayerActiveX");

    obj.NT_SetRotation(rotate_degrees_);

    var rotateText = document.getElementById("RotateBtn");

    if (0 == rotate_degrees_)
    {
        rotateText.innerHTML = "旋转90度";
    }
    else if (90 == rotate_degrees_)
    {
        rotateText.innerHTML = "旋转180度";
    }
    else if (180 == rotate_degrees_)
    {
        rotateText.innerHTML = "旋转270度";
    }
    else if (270 == rotate_degrees_)
    {
        rotateText.innerHTML = "不旋转";
    }
}

image.gif

实时截图调用示例：

function CaptureImage() {
    var obj = document.getElementById("SmartPlayerActiveX");

    obj.NT_CaptureImage();
}

image.gif

全屏显示窗口调用示例：

//全屏显示窗口
function FullScreen() {
    var obj = document.getElementById("SmartPlayerActiveX");

    obj.NT_FullScreen();
}

image.gif

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