/// <summary>
/// rtmp 回调
/// </summary>
/// <param name="frameType"></param>
/// <param name="pBuf"></param>
/// <param name="state"></param>
/// <param name="userPtr"></param>
/// <returns></returns>
private int RtmpCallBack(int frameType, IntPtr pBuf, EasyRTMPAPI.EASY_RTMP_STATE_T state, IntPtr userPtr)
{
//获取通道信息
_channel_info channelInfo = (_channel_info)Marshal.PtrToStructure(userPtr, typeof(_channel_info));
switch (state)
{
case EasyRTMPAPI.EASY_RTMP_STATE_T.EASY_RTMP_STATE_CONNECTING:
this.OnRtmpConnectChanged(false, "RTMP 正在连接!");
break;
case EasyRTMPAPI.EASY_RTMP_STATE_T.EASY_RTMP_STATE_CONNECTED:
this.OnRtmpConnectChanged(false, "RTMP 已连接!");
break;
case EasyRTMPAPI.EASY_RTMP_STATE_T.EASY_RTMP_STATE_CONNECT_FAILED:
this.OnRtmpConnectChanged(false, "RTMP 连接失败!");
break;
case EasyRTMPAPI.EASY_RTMP_STATE_T.EASY_RTMP_STATE_CONNECT_ABORT:
this.OnRtmpConnectChanged(false, "RTMP 连接中断!");
break;
case EasyRTMPAPI.EASY_RTMP_STATE_T.EASY_RTMP_STATE_DISCONNECTED:
this.OnRtmpConnectChanged(false, "RTMP 连接断开!");
break;
default:
break;
}
return(0);
}
/// <summary>
/// 启动 rtsp
/// </summary>
/// <returns></returns>
public KeyValuePair <bool, string> StartRtsp()
{
//rtsp 初始化
var ret = this.rtspClient.Init();
if (!ret.Key)
{
this.StopRtsp();
return(ret);
}
//rtsp 回调
ret = this.rtspClient.SetCallback(this.RtspCallBack);
if (!ret.Key)
{
this.StopRtsp();
return(ret);
}
//创建通道信息结构体
var channelInfo = new _channel_info();
channelInfo.fCfgInfo.channelId = this.ChannelId;
channelInfo.fHavePrintKeyInfo = false;
char[] charBuffer = new char[64];
string stringBuffer = string.Format("channel{0}", this.ChannelId);
Array.Copy(stringBuffer.ToCharArray(), charBuffer, stringBuffer.Length);
channelInfo.fCfgInfo.channelName = charBuffer;
charBuffer = new char[512];
Array.Copy(this.RtspUrl.ToCharArray(), charBuffer, this.RtspUrl.Length);
channelInfo.fCfgInfo.srcRtspAddr = charBuffer;
charBuffer = new char[512];
Array.Copy(this.RtmpUrl.ToCharArray(), charBuffer, this.RtmpUrl.Length);
channelInfo.fCfgInfo.destRtmpAddr = charBuffer;
channelInfo.fCfgInfo.option = this.Option;
channelInfo.fNVSHandle = this.rtspClient.RtspHandle;
//分配用户自定义数据指针缓冲区
this.userPtr = Marshal.AllocHGlobal(Marshal.SizeOf(channelInfo));
//拷贝结构体数据作为用户自定义数据
Marshal.StructureToPtr(channelInfo, this.userPtr, true);
//rtsp 连接
ret = this.rtspClient.OpenStream(this.RtspUrl, this.userPtr, 0);
if (!ret.Key)
{
this.StopRtsp();
return(ret);
}
return(new KeyValuePair <bool, string>(true, "rtsp 已启动!"));
}
/// <summary>
/// 处理RTSP媒体信息帧
/// </summary>
/// <param name="channelPtr"></param>
/// <param name="frameInfoPtr"></param>
/// <param name="pBuf"></param>
/// <returns></returns>
private int ProcessMediaFrame(IntPtr channelPtr, IntPtr frameInfoPtr, IntPtr pBuf)
{
if (pBuf == IntPtr.Zero)
{
return(0);
}
this.OnRtspConnectChanged(true, "RTSP 已连接!");
//获取通道信息
_channel_info channelInfo = (_channel_info)Marshal.PtrToStructure(channelPtr, typeof(_channel_info));
//从pBuf中获取媒体信息
var mediainfo = (EasyTypes.EASY_MEDIA_INFO_T)Marshal.PtrToStructure(pBuf, typeof(EasyTypes.EASY_MEDIA_INFO_T));
//更新通道媒体信息
channelInfo.fMediainfo = mediainfo;
//更新通道信息指针
Marshal.StructureToPtr(channelInfo, channelPtr, true);
return(0);
}
/// <summary>
/// 处理RTSP视频I帧
/// </summary>
/// <param name="channelPtr"></param>
/// <param name="frameInfoPtr"></param>
/// <param name="pBuf"></param>
/// <returns></returns>
private int ProcessVideoFrame_I(IntPtr channelPtr, IntPtr frameInfoPtr, IntPtr pBuf)
{
//获取通道信息
_channel_info channelInfo = (_channel_info)Marshal.PtrToStructure(channelPtr, typeof(_channel_info));
//获取帧信息
EasyTypes.EASY_FRAME_INFO frameInfo = (EasyTypes.EASY_FRAME_INFO)Marshal.PtrToStructure(frameInfoPtr, typeof(EasyTypes.EASY_FRAME_INFO));
//RTMP初始化
if (!this.rtmpClient.IsInit)
{
//启动 rtmp
var retRtmp = this.StartRtmp();
if (!retRtmp.Key)
{
return(0);
}
EasyTypes.EASY_MEDIA_INFO_T mediaInfo = EasyTypes.Create_EASY_MEDIA_INFO_T();
mediaInfo.u32VideoFps = channelInfo.fMediainfo.u32VideoFps;
mediaInfo.u32AudioSamplerate = channelInfo.fMediainfo.u32AudioSamplerate; /* 音频采样率 */
mediaInfo.u32AudioChannel = channelInfo.fMediainfo.u32AudioChannel; /* 音频通道数 */
mediaInfo.u32AudioBitsPerSample = channelInfo.fMediainfo.u32AudioBitsPerSample; /* 音频采样精度 */
//媒体信息
retRtmp = this.rtmpClient.InitMetadata(mediaInfo);
if (!retRtmp.Key)
{
//return;
}
}
EasyTypes.EASY_AV_Frame avFrame = new EasyTypes.EASY_AV_Frame();
avFrame.u32AVFrameFlag = EasyTypes.EASY_SDK_VIDEO_FRAME_FLAG;
avFrame.u32AVFrameLen = frameInfo.length;
avFrame.pBuffer = pBuf;
avFrame.u32VFrameType = EasyTypes.EASY_SDK_VIDEO_FRAME_I;
//发送数据包
var ret = this.rtmpClient.SendPacket(avFrame);
if (!ret.Key)
{
//return;
}
return(0);
}
