//private FileStream fs = new FileStream(@"D:\IvsVideoStreambefore.264", FileMode.OpenOrCreate, FileAccess.Write, FileShare.None);
//private int writeCount = 0;
/// <summary>
/// 发送数据
/// </summary>
/// <param name="videoData"></param>
/// <param name="sender"></param>
public void SendData(MediaData mediaData, string sender)
{
if (mediaData.StreamType == StreamType.VIDEO_H264)
{
//if (writeCount < 1000)
//{
// fs.Write(mediaData.Data, 0, (int)mediaData.Size);
// writeCount++;
//}
SendVideoData(mediaData, sender);
}
if (mediaData.StreamType == StreamType.AUDIO_G711A || mediaData.StreamType == StreamType.AUDIO_G711U)
{
SendAudioData(mediaData, sender);
}
}
/// <summary>
/// 开始读取 码流数据
/// </summary>
/// <param name="str"></param>
public void ReadData(Common.DataCallBack dataCallBack)
{
NLogEx.LoggerEx logEx = new NLogEx.LoggerEx(log);
Thread th = new Thread(new ThreadStart(() =>
{
while (!shouldStop)
{
try
{
if (pipedStream != null && pipedStream.IsConnected)
{
byte[] byteArray = new byte[4]; //unit字节长度
pipedStream.ReadMode = PipeTransmissionMode.Byte;
MediaData mediaData = new MediaData();
pipedStream.Read(byteArray, 0, 4);
mediaData.Size = (uint)BitConverter.ToInt32(byteArray, 0);
if (mediaData.Size == 0)
{
continue;
}
pipedStream.Read(byteArray, 0, 4);
mediaData.StreamType = (StreamType)BitConverter.ToInt32(byteArray, 0);
pipedStream.Read(byteArray, 0, 4);
mediaData.DataType = (MediaDataType)BitConverter.ToInt32(byteArray, 0);
pipedStream.Read(byteArray, 0, 4);
mediaData.FrameType = (FrameDataType)BitConverter.ToInt32(byteArray, 0);
byte[] dataByteArray = new byte[mediaData.Size];
//读取管道中的流
pipedStream.Read(dataByteArray, 0, (int)mediaData.Size);
mediaData.Data = dataByteArray;
mediaDataSize = mediaData.Size;
//if (wCount < 1200)
//{
// fs.Write(mediaData.Data, 0, (int)mediaData.Size);
// wCount++;
//}
//回调函数
dataCallBack(cameraNo, mediaData, cameraNo.Substring(0, cameraNo.IndexOf("#")));
}
}
catch (Exception ex)
{
logEx.Error("VideoPipe.ReadData is error,ex={0}", ex.ToString());
if (pipedStream != null && !pipedStream.IsConnected)
{
VideoPipeManage.Instance().DeleteVideoPipe(cameraNo);
Stop();
}
}
}
}));
th.IsBackground = true;
th.Start();
}
/// <summary>
/// 发送视频码流,
/// 对于H264的帧数据，如果监控平台回调的码流，SPS PPS IDR是分开发送的,则需要进行拼帧处理，将SPS+PPS+IDR拼接在一起发送
/// </summary>
/// <param name="mediaData"></param>
/// <param name="sender"></param>
public void SendVideoData(MediaData mediaData, string sender)
{
//对于H264的帧数据，如果监控平台回调的码流，SPS PPS IDR是分开发送的，则需要进行拼帧处理，将SPS+PPS+IDR拼接在一起发送
if (mediaData.DataType == MediaDataType.FRAME_DATA)
{
switch (mediaData.FrameType)
{
case FrameDataType.H264_SEI_NALU_TYPE:
//SEI的包，直接丢弃
return;
case FrameDataType.H264_SPS_NALU_TYPE:
//SPS的类型，先清空缓存
//this.CacheData = new byte[mediaData.Size];
//将SPS的数据缓存
this.CacheData = mediaData.Data;
this.LastCacheFrameType = mediaData.FrameType;
//直接return，暂不发送
return;
case FrameDataType.H264_PPS_NALU_TYPE:
//如果缓存最后一帧数据不为SPS或者PPS,说明数据乱序，舍弃。
if ((this.LastCacheFrameType != FrameDataType.H264_SPS_NALU_TYPE) && (this.LastCacheFrameType != FrameDataType.H264_PPS_NALU_TYPE))
{
return;
}
//将PPS的数据缓存，暂不发送
byte[] byteTemp = new byte[this.CacheData.Length + mediaData.Data.Length];
this.CacheData.CopyTo(byteTemp, 0);
mediaData.Data.CopyTo(byteTemp, this.CacheData.Length);
this.CacheData = byteTemp;
this.LastCacheFrameType = mediaData.FrameType;
//直接return，暂不发送
return;
case FrameDataType.H264_IDR_NALU_TYPE:
//如果缓存是上最后一帧数据不为PPS,说明数据乱序，舍弃
if (this.LastCacheFrameType != FrameDataType.H264_PPS_NALU_TYPE)
{
return;
}
byteTemp = new byte[this.CacheData.Length + mediaData.Data.Length];
this.CacheData.CopyTo(byteTemp, 0);
mediaData.Data.CopyTo(byteTemp, this.CacheData.Length);
mediaData.Data = byteTemp;
mediaData.Size = (uint)mediaData.Data.Length;
//break跳出 switch，进行发送
break;
default:
//其他类型的数据，直接发送
break;
}
}
this.DataCallBack(this.CameraNo, mediaData, sender);
}
/// <summary>
/// 发送音频码流
/// </summary>
/// <param name="videoData"></param>
/// <param name="sender"></param>
public void SendAudioData(MediaData videoData, string sender)
{
this.DataCallBack(this.CameraNo, videoData, sender);
}