C++ VideoFrame::IsIntra方法代码示例

//.........这里部分代码省略.........
		}

		//Check
		if (frameTime)
		{
			timespec ts;
			//Lock
			pthread_mutex_lock(&mutex);
			//Calculate timeout
			calcAbsTimeout(&ts,&prev,frameTime);
			//Wait next or stopped
			int canceled  = !pthread_cond_timedwait(&cond,&mutex,&ts);
			//Unlock
			pthread_mutex_unlock(&mutex);
			//Check if we have been canceled
			if (canceled)
				//Exit
				break;
		}
		//Set sending time of previous frame
		getUpdDifTime(&prev);

		//Set timestamp
		encoded->SetTimestamp(getDifTime(&first)/1000);

		//Set next one
		frameTime = 1000/fps;

		//Set duration
		encoded->SetDuration(frameTime);
		
		//Get full frame
		frame.SetVideoFrame(encoded->GetData(),encoded->GetLength());

		//Set buffer size
		frame.SetMediaSize(encoded->GetLength());

		//Check type
		if (encoded->IsIntra())
			//Set type
			frame.SetFrameType(RTMPVideoFrame::INTRA);
		else
			//Set type
			frame.SetFrameType(RTMPVideoFrame::INTER);

	
		//If we need desc but yet not have it
		if (!frameDesc && encoded->IsIntra() && videoCodec==VideoCodec::H264)
		{
			//Create new description
			AVCDescriptor desc;
			//Set values
			desc.SetConfigurationVersion(1);
			desc.SetAVCProfileIndication(0x42);
			desc.SetProfileCompatibility(0x80);
			desc.SetAVCLevelIndication(0x0C);
			desc.SetNALUnitLength(3);
			//Get encoded data
			BYTE *data = encoded->GetData();
			//Get size
			DWORD size = encoded->GetLength();
			//get from frame
			desc.AddParametersFromFrame(data,size);
			//Crete desc frame
			frameDesc = new RTMPVideoFrame(getDifTime(&first)/1000,desc);
			//Lock
			pthread_mutex_lock(&mutex);
			//Send it
			SendMediaFrame(frameDesc);
			//unlock
			pthread_mutex_unlock(&mutex);
		}
		
		//Lock
		pthread_mutex_lock(&mutex);
		//Set timestamp
		frame.SetTimestamp(encoded->GetTimeStamp());
		//Publish it
		SendMediaFrame(&frame);
		//For each listener
		for(MediaFrameListeners::iterator it = mediaListeners.begin(); it!=mediaListeners.end(); ++it)
			//Send it
			(*it)->onMediaFrame(RTMPMediaStream::id,*encoded);
		//unlock
		pthread_mutex_unlock(&mutex);
	}
	Log("-FLVEncoder encode video end of loop\n");

	//Stop the capture
	videoInput->StopVideoCapture();

	//Check
	if (encoder)
		//Exit
		delete(encoder);
	Log("<FLVEncoder encode vide\n");
	
	//Exit
	return 1;
}

//.........这里部分代码省略.........
			continue;

		//Get type
		VideoCodec::Type type = (VideoCodec::Type)packet->GetCodec();


		if ((decoder==NULL) || (type!=decoder->type))
		{
			//Si habia uno nos lo cargamos
			if (decoder!=NULL)
				delete decoder;

			//Creamos uno dependiendo del tipo
			decoder = VideoCodecFactory::CreateDecoder(type);

			//Check
			if (!decoder)
			{
				delete(packet);
				continue;
			}
		}

		//Lo decodificamos
		if(!decoder->DecodePacket(packet->GetMediaData(),packet->GetMediaLength(),0,packet->GetMark()))
		{
			delete(packet);
			continue;
		}
		//Get mark
		bool mark = packet->GetMark();

		//Delete packet
		delete(packet);

		//Check if it is last one
		if(!mark)
			continue;

		//Check size
		if (decoder->GetWidth()!=width || decoder->GetHeight()!=height)
		{
			//Get dimension
			width = decoder->GetWidth();
			height = decoder->GetHeight();

			//Set size
			numpixels = width*height*3/2;

			//Set also frame rate and bps
			encoder->SetFrameRate(25,300,500);

			//Set them in the encoder
			encoder->SetSize(width,height);
		}

		//Encode next frame
		VideoFrame *encoded = encoder->EncodeFrame(decoder->GetFrame(),numpixels);

		//Check
		if (!encoded)
			break;

		//Check size
		if (frame.GetMaxMediaSize()<encoded->GetLength())
			//Not enougth space
			return Error("Not enought space to copy FLV encodec frame [frame:%d,encoded:%d",frame.GetMaxMediaSize(),encoded->GetLength());

		//Get full frame
		frame.SetVideoFrame(encoded->GetData(),encoded->GetLength());

		//Set buffer size
		frame.SetMediaSize(encoded->GetLength());

		//Check type
		if (encoded->IsIntra())
			//Set type
			frame.SetFrameType(RTMPVideoFrame::INTRA);
		else
			//Set type
			frame.SetFrameType(RTMPVideoFrame::INTER);

		//Let the connection set the timestamp
		frame.SetTimestamp(getDifTime(&first)/1000);

		//Send it
		SendMediaFrame(&frame);
	}

	//Check
	if (decoder)
		//Delete
		delete(decoder);
	//Check
	if (encoder)
		//Delete
		delete(encoder);

	Log("<RecVideo\n");
}

//.........这里部分代码省略.........
			QWORD sleep = frameTime;
			//Remove extra sleep from prev
			if (overslept<sleep)
				//Remove it
				sleep -= overslept;
			else
				//Do not overflow
				sleep = 1;

			//Calculate timeout
			calcAbsTimeoutNS(&ts,&prev,sleep);
			//Wait next or stopped
			int canceled  = !pthread_cond_timedwait(&cond,&mutex,&ts);
			//Unlock
			pthread_mutex_unlock(&mutex);
			//Check if we have been canceled
			if (canceled)
				//Exit
				break;
			//Get differencence
			QWORD diff = getDifTime(&prev);
			//If it is biffer
			if (diff>frameTime)
				//Get what we have slept more
				overslept = diff-frameTime;
			else
				//No oversletp (shoulddn't be possible)
				overslept = 0;
		}

		//Increase frame counter
		fpsAcu.Update(getTime()/1000,1);
		
		//If first
		if (!frameTime)
		{
			//Set frame time, slower
			frameTime = 5*1000000/videoFPS;
			//Restore bitrate
			videoEncoder->SetFrameRate(videoFPS,current,videoIntraPeriod);
		} else {
			//Set frame time
			frameTime = 1000000/videoFPS;
		}
		
		//Add frame size in bits to bitrate calculator
		bitrateAcu.Update(getDifTime(&ini)/1000,videoFrame->GetLength()*8);

		//Set frame timestamp
		videoFrame->SetTimestamp(getDifTime(&ini)/1000);

		//Check if we have mediaListener
		if (mediaListener)
			//Call it
			mediaListener->onMediaFrame(*videoFrame);

		//Set sending time of previous frame
		getUpdDifTime(&prev);

		//Calculate sending times based on bitrate
		DWORD sendingTime = videoFrame->GetLength()*8/current;

		//Adjust to maximum time
		if (sendingTime>frameTime/1000)
			//Cap it
			sendingTime = frameTime/1000;

		//If it was a I frame
		if (videoFrame->IsIntra())
			//Clean rtp rtx buffer
			rtp.FlushRTXPackets();

		//Send it smoothly
		smoother.SendFrame(videoFrame,sendingTime);

		//Dump statistics
		if (num && ((num%videoFPS*10)==0))
		{
			Debug("-Send bitrate target=%d current=%d avg=%llf rate=[%llf,%llf] fps=[%llf,%llf] limit=%d\n",target,current,bitrateAcu.GetInstantAvg()/1000,bitrateAcu.GetMinAvg()/1000,bitrateAcu.GetMaxAvg()/1000,fpsAcu.GetMinAvg(),fpsAcu.GetMaxAvg(),videoBitrateLimit);
			bitrateAcu.ResetMinMax();
			fpsAcu.ResetMinMax();
		}
		num++;
	}

	Log("-SendVideo out of loop\n");

	//Terminamos de capturar
	videoInput->StopVideoCapture();

	//Check
	if (videoEncoder)
		//Borramos el encoder
		delete videoEncoder;

	//Salimos
	Log("<SendVideo [%d]\n",sendingVideo);

	return 0;
}