/// <summary>
/// 码流回调函数,
/// 1、根据预览句柄handle从videoHandleCameraDic中获取摄像头编号，
/// 2、根据摄像头编号，获取mic状态
/// 3、判断码流是否是音频，如果是音频，根据mic状态判断是否需要转发
/// </summary>
/// <param name="handle">播放句柄</param>
/// <param name="pRawFrameInfo">实况参数</param>
/// <param name="pBuf">码流</param>
/// <param name="uiBufSize">大小</param>
/// <param name="cameraNo">摄像头编号</param>
private void IvsRealPlayCallBackRaw(int handle, IvsRawFrameInfo pRawFrameInfo, byte[] pBuf, UInt32 uiBufSize, string pUserData)
{
NLogEx.LoggerEx logEx = new NLogEx.LoggerEx(log);
//logEx.Trace("Enter:IvsRealPlayCallBackRaw(),{0}", pUserData);
MediaDataSender mediaDataSender = null;
try
{
if (this.handelOperateLock.TryEnterReadLock(CgwConst.ENTER_LOCK_WAIT_TIME))
{
try
{
if (!this.videoHandleCameraDic.ContainsKey(handle))
{
logEx.Error("The video data handle is not found.Handle:{0}", handle);
return;
}
mediaDataSender = this.videoHandleCameraDic[handle];
}
finally
{
this.handelOperateLock.ExitReadLock();
}
}
if (mediaDataSender == null)
{
return;
}
StreamType streamType = StreamType.VIDEO_H264;
//判断码流类型，因为码流回调访问频频非常高，不单独抽成一个方法，减少方法访问开销
//对于支持的码流类型，用break退出switch，对于不支持的码流类型直接舍弃，用return返回
switch (pRawFrameInfo.StreamType)
{
//对于音频只接收G711A和G711U，其他舍弃
case (int)IvsStreamType.PAY_LOAD_TYPE_PCMU:
streamType = StreamType.AUDIO_G711U;
break;
case (int)IvsStreamType.PAY_LOAD_TYPE_PCMA:
streamType = StreamType.AUDIO_G711A;
break;
//只接收H264的视频码流
case (int)IvsStreamType.PAY_LOAD_TYPE_H264:
//H264的标准视频流，作为视频流处理
streamType = StreamType.VIDEO_H264;
break;
default:
//不支持的类型,直接舍弃，返回
//logEx.Warn("This stream type is not support. Chuck the data.StreamType:{0};Camera no:{1}",
// Enum.GetName(typeof(IvsStreamType), pRawFrameInfo.StreamType),
// cameraNo);
return;
}
if (streamType == StreamType.AUDIO_G711A || streamType == StreamType.AUDIO_G711U)
{
//如果是音频流，需要判断mic的状态，开启时才发送音频流
if (this.micOperateLock.TryEnterReadLock(CgwConst.ENTER_LOCK_WAIT_TIME))
{
try
{
if (this.cameraMicStatusDic.ContainsKey(mediaDataSender.CameraNo))
{
//如果mic为非开启状态，则不发送音频码流,
if (!this.cameraMicStatusDic[mediaDataSender.CameraNo])
{
//logEx.Warn("This data is audio,but the mic is off.Chuck the data.Camera no:{0}", mediaDataSender.CameraNo);
return;
}
}
else
{
//默认为关闭状态，因此如果cameraMicStatusDic不包含该摄像头，则认为处于关闭状态，舍弃音频码流
//logEx.Warn("This data is audio,but the mic is off.Chuck the data.Camera no:{0}", mediaDataSender.CameraNo);
return;
}
}
finally
{
this.micOperateLock.ExitReadLock();
}
}
}
MediaData mediaData = new MediaData();
mediaData.Data = pBuf;
//IVS 目前为裸码流
mediaData.DataType = MediaDataType.FRAME_DATA;
mediaData.StreamType = streamType;
mediaData.Size = uiBufSize;
//将Ivs帧类型转换成各融合网关统一的帧类型
string name = Enum.GetName(typeof(IvsH264NaluType), pRawFrameInfo.FrameType);
//帧类型判断，偶现IVS返回的帧类型，在融合网关中未记录，返回值为null
if (string.IsNullOrEmpty(name))
{
logEx.Warn("IvsRealPlayCallBackRaw FrameType Is Not Defined ,FrameType:{0}", pRawFrameInfo.FrameType);
mediaData.FrameType = FrameDataType.H264_NALU_TYPE_UNDEFINED;
}
else
{
if (Enum.IsDefined(typeof(FrameDataType), name))
{
FrameDataType frameDataType = (FrameDataType)Enum.Parse(typeof(FrameDataType), name);
mediaData.FrameType = frameDataType;
}
else
{
mediaData.FrameType = FrameDataType.H264_NALU_TYPE_UNDEFINED;
}
}
//向回调函数转发码流
//this.videoDataCallBack(cameraNo, mediaData, this.sender);
//logEx.Debug("FrameDataCallBackFun.mediaData.DataType={0},FrameType = {1},StreamType = {2},Size = {3}", Enum.GetName(typeof(MediaDataType), mediaData.DataType),
// Enum.GetName(typeof(FrameDataType), mediaData.FrameType), Enum.GetName(typeof(StreamType), mediaData.StreamType), mediaData.Size);
mediaDataSender.SendData(mediaData, this.sender);
}
catch (Exception e)
{
logEx.Error("Send the media data failed.Execption message:{0}", e.ToString());
}
}
