/// <summary>
/// 处理RTSP视频帧
/// </summary>
/// <param name="channelPtr"></param>
/// <param name="frameInfoPtr"></param>
/// <param name="pBuf"></param>
/// <returns></returns>
private int ProcessVideoFrame(IntPtr channelPtr, IntPtr frameInfoPtr, IntPtr pBuf)
{
//判断RTMP是否初始化
if (!this.rtmpClient.IsInit)
{
return(0);
}
//获取帧信息
EasyTypes.EASY_FRAME_INFO frameInfo = (EasyTypes.EASY_FRAME_INFO)Marshal.PtrToStructure(frameInfoPtr, typeof(EasyTypes.EASY_FRAME_INFO));
EasyTypes.EASY_AV_Frame avFrame = new EasyTypes.EASY_AV_Frame();
avFrame.u32AVFrameFlag = EasyTypes.EASY_SDK_VIDEO_FRAME_FLAG;
//avFrame.u32AVFrameLen = frameinfo->length-4;
avFrame.u32AVFrameLen = frameInfo.length - 4;
//avFrame.pBuffer = (unsigned char*)pbuf+4;
avFrame.pBuffer = new IntPtr(pBuf.ToInt64() + 4);
avFrame.u32VFrameType = EasyTypes.EASY_SDK_VIDEO_FRAME_P;
//发送数据包
var ret = this.rtmpClient.SendPacket(avFrame);
if (!ret.Key)
{
//return;
}
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);
}
/// <summary>
/// rtsp 回调
/// </summary>
/// <param name="channelId"></param>
/// <param name="channelPtr"></param>
/// <param name="frameType"></param>
/// <param name="pBuf"></param>
/// <param name="frameInfo"></param>
/// <returns></returns>
private int RtspCallBack(int channelId, IntPtr channelPtr, int frameType, IntPtr pBuf, IntPtr frameInfoPtr)
{
//视频帧处理
if (frameType == EasyTypes.EASY_SDK_VIDEO_FRAME_FLAG)
{
//是否存在帧
if (frameInfoPtr != IntPtr.Zero)
{
this.OnRtspConnectChanged(true, "RTSP 正在接收!");
//获取帧信息
EasyTypes.EASY_FRAME_INFO frameInfo = (EasyTypes.EASY_FRAME_INFO)Marshal.PtrToStructure(frameInfoPtr, typeof(EasyTypes.EASY_FRAME_INFO));
if (frameInfo.type == EasyTypes.EASY_SDK_VIDEO_FRAME_I)//处理I帧
{
this.ProcessVideoFrame_I(channelPtr, frameInfoPtr, pBuf);
}
else//处理其他帧
{
this.ProcessVideoFrame(channelPtr, frameInfoPtr, pBuf);
}
}
}
//音频侦处理
if (frameType == EasyTypes.EASY_SDK_AUDIO_FRAME_FLAG)
{
this.ProcessAudioFrame(channelPtr, frameInfoPtr, pBuf);
}
//媒体类型侦处理
if (frameType == EasyTypes.EASY_SDK_MEDIA_INFO_FLAG)
{
this.ProcessMediaFrame(channelPtr, frameInfoPtr, pBuf);
}
//事件帧处理
if (frameType == EasyTypes.EASY_SDK_EVENT_FRAME_FLAG)
{
this.ProcessEventFrame(channelPtr, frameInfoPtr, pBuf);
}
return(0);
}
/// <summary>
/// 处理RTSP事件帧
/// </summary>
/// <param name="channelInfo"></param>
/// <param name="frameInfoPtr"></param>
/// <param name="pBuf"></param>
/// <returns></returns>
private int ProcessEventFrame(IntPtr channelPtr, IntPtr frameInfoPtr, IntPtr pBuf)
{
//开始进行连接，建立EasyRTSPClient连接线程
if (pBuf == IntPtr.Zero && frameInfoPtr == IntPtr.Zero)
{
this.OnRtspConnectChanged(false, "RTSP 正在连接!");
return(0);
}
//是否存在帧
bool hasFrame = frameInfoPtr != IntPtr.Zero;
//获取帧信息
EasyTypes.EASY_FRAME_INFO frameInfo = hasFrame ? (EasyTypes.EASY_FRAME_INFO)Marshal.PtrToStructure(frameInfoPtr, typeof(EasyTypes.EASY_FRAME_INFO)) : new EasyTypes.EASY_FRAME_INFO();
//连接线程退出，此时上层应该停止相关调用，复位连接按钮等状态
if (hasFrame && frameInfo.codec == EasyTypes.EASY_SDK_EVENT_CODEC_EXIT)
{
this.OnRtspConnectChanged(false, "RTSP 连接退出!");
return(0);
}
//连接失败
if (hasFrame && frameInfo.codec == EasyTypes.EASY_SDK_EVENT_CODEC_FAIL)
{
this.OnRtspConnectChanged(false, "RTSP 连接失败!");
return(0);
}
//连接错误，错误码通过EasyRTSP_GetErrCode()接口获取，比如404
if (hasFrame && frameInfo.codec == EasyTypes.EASY_SDK_EVENT_CODEC_ERROR)
{
int errorCode;
this.rtspClient.GetErrCode(out errorCode);
string message = errorCode.ToString();
if (errorCode == 400)
{
message = "Bad Request";
}
else if (errorCode == 401)
{
message = "Unauthorized";
}
else if (errorCode == 403)
{
message = "Forbidden";
}
else if (errorCode == 404)
{
message = "Not Found";
}
else if (errorCode == 500)
{
message = "Internal Server Error";
}
else
{
message = errorCode.ToString();
}
this.OnRtspConnectChanged(false, string.Concat("RTSP 连接错误:", message));
}
return(0);
}
