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pxScreenLiveStreamingDlg.cpp
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pxScreenLiveStreamingDlg.cpp
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// pxScreenLiveStreamingDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "pxScreenLiveStreaming.h"
#include "pxScreenLiveStreamingDlg.h"
#include "afxdialogex.h"
#include "pxCommonDef.h"
#include "pxFLVRecorder.h"
//#include "pxFLVCommonfDef.h"
char szAVCSequenceHeader[AVC_SEQUENCE_HEADER_LEN];
char szAACSequenceHeader[AAC_SEQUENCE_HEADER_LEN];
static WAVEFORMATEX g_sWaveFormat;
extern "C"
{
#include "libavutil/opt.h"
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
};
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
bool g_bStop = false;
bool g_bVideoCaptureDone = false; // 视频采集是否结束
bool g_bVideoEncodeDone = false; // 视频编码是否结束
bool g_bAudioCaptureDone = false; // 音频采集是否结束
bool g_bAudioEncodeDone = false; // 音频编码是否结束
DWORD WINAPI ThreadVideoCapture(LPVOID lp);
DWORD WINAPI ThreadVideoEncoder(LPVOID lp);
DWORD WINAPI ThreadAudioCapture(LPVOID lp);
DWORD WINAPI ThreadAudioEncoder(LPVOID lp);
DWORD WINAPI ThreadFlvRecorder(LPVOID lp);
// 回调函数
DWORD CALLBACK MicrophoneCallback(
HWAVEIN hWaveIn, // 声音输入设备句柄
UINT uMsg, // 产生的消息，由系统给出
DWORD dwInstance, // 在waveinopen中给出要传递给该函数的数据
DWORD dwParam1, // 附加数据1
DWORD dwParam2); // 附加数据2
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialogEx
{
public:
CAboutDlg();
// 对话框数据
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialogEx(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()
// CpxScreenLiveStreamingDlg 对话框
CPxScreenLiveStreamingDlg::CPxScreenLiveStreamingDlg(CWnd* pParent /*=NULL*/)
: CDialogEx(CPxScreenLiveStreamingDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
m_pBitmapBuffer = NULL;
}
CPxScreenLiveStreamingDlg::~CPxScreenLiveStreamingDlg()
{
g_oCodedBufferPool.Release();
}
void CPxScreenLiveStreamingDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CPxScreenLiveStreamingDlg, CDialogEx)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON_START, &CPxScreenLiveStreamingDlg::OnStartRecord)
ON_BN_CLICKED(IDC_BUTTON_STOP, &CPxScreenLiveStreamingDlg::OnStopRecord)
END_MESSAGE_MAP()
// CpxScreenLiveStreamingDlg 消息处理程序
BOOL CPxScreenLiveStreamingDlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
// 将“关于...”菜单项添加到系统菜单中。
// IDM_ABOUTBOX 必须在系统命令范围内。
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
BOOL bNameValid;
CString strAboutMenu;
bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
ASSERT(bNameValid);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
Init();
/*int nScreenWidth = GetSystemMetrics(SM_CXSCREEN);
int nScreenHeight = GetSystemMetrics(SM_CYSCREEN);*/
m_nYUVBufferSize = m_nScreenWidth * m_nScreenHeight * 1.5;
g_oYUVBufferPool.Init(m_nYUVBufferSize);
g_oPCMBufferPool.Init(512*1024);
g_oCodedBufferPool.Init(1024*1024);
return TRUE; // 除非将焦点设置到控件，否则返回 TRUE
}
void CPxScreenLiveStreamingDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialogEx::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮，则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
// 这将由框架自动完成。
void CPxScreenLiveStreamingDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作区矩形中居中
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialogEx::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标
//显示。
HCURSOR CPxScreenLiveStreamingDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
bool CPxScreenLiveStreamingDlg::Init()
{
/*int nScreenWidth = GetSystemMetrics(SM_CXSCREEN);
int nScreenHeight = GetSystemMetrics(SM_CYSCREEN);*/
QueryPerformanceFrequency(&m_liPerfFreq);
pDC = CDC::FromHandle(::GetDC(NULL)); // 获取当前整个屏幕DC
int Width = pDC->GetDeviceCaps(HORZRES);
int Height = pDC->GetDeviceCaps(VERTRES);
m_nScreenWidth = Width;
m_nScreenHeight = Height;
//CDC memDC; // 内存DC
memDC.CreateCompatibleDC(pDC);
//CBitmap memBitmap; // 建立和屏幕兼容的bitmap
memBitmap.CreateCompatibleBitmap(pDC, Width, Height);
/*oldmemBitmap = */
memDC.SelectObject(&memBitmap); // 将memBitmap选入内存DC
// 保存memDC中的位图到文件
BITMAP bmp;
memBitmap.GetBitmap(&bmp); // 获得位图信息
m_BitmapInfoHeader.biBitCount = bmp.bmBitsPixel;
m_BitmapInfoHeader.biSize = sizeof(BITMAPINFOHEADER);
m_BitmapInfoHeader.biCompression = BI_RGB;
m_BitmapInfoHeader.biPlanes = 1;
m_BitmapInfoHeader.biWidth = bmp.bmWidth;
m_BitmapInfoHeader.biHeight = bmp.bmHeight;
m_BitmapInfoHeader.biSizeImage = bmp.bmWidthBytes * bmp.bmHeight; // must be DWORD aligned
m_BitmapInfoHeader.biXPelsPerMeter = 0;
m_BitmapInfoHeader.biYPelsPerMeter = 0;
m_BitmapInfoHeader.biClrUsed = 0;
m_BitmapInfoHeader.biClrImportant = 0;
m_BitmapFileHeader.bfType = 0x4D42;
m_BitmapFileHeader.bfSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + m_BitmapInfoHeader.biSizeImage;
m_BitmapFileHeader.bfReserved1 = 0;
m_BitmapFileHeader.bfReserved2 = 0;
m_BitmapFileHeader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
if(m_pBitmapBuffer == NULL)
{
m_pBitmapBuffer = new BYTE [m_BitmapInfoHeader.biSizeImage];
if(NULL == m_pBitmapBuffer)
{
return false;
}
}
m_nBitmapBufferLen = m_BitmapInfoHeader.biSizeImage;
m_nYUVBufferSize = m_nScreenWidth*m_nScreenHeight*3/2;
m_pYUVBuffer = (BYTE *)new BYTE[m_nYUVBufferSize];
if(NULL == m_pYUVBuffer)
{
printf("new yuv buffer failed \n");
return false;
}
m_nUOffset = m_nScreenWidth * m_nScreenHeight;
m_nVOffset = m_nUOffset + m_nUOffset / 4;
return true;
}
void CPxScreenLiveStreamingDlg::OnStartRecord()
{
g_bStop = false;
DWORD dwVideoCaptureThreadId = 0;
DWORD dwVideoEncoderThreadId = 0;
DWORD dwAudioCaptureThreadId = 0;
DWORD dwAudioEncoderThreadId = 0;
DWORD dwRecordThreadId = 0;
HANDLE hVideoCaptureThread = CreateThread(NULL, NULL, ThreadVideoCapture, this, 0, &dwVideoCaptureThreadId);
HANDLE hVideoEncodeThread = CreateThread(NULL, NULL, ThreadVideoEncoder, this, 0, &dwVideoEncoderThreadId);
HANDLE hAudioCaptureThread = CreateThread(NULL, NULL, ThreadAudioCapture, this, 0, &dwAudioCaptureThreadId);
HANDLE hAudioEncodeThread = CreateThread(NULL, NULL, ThreadAudioEncoder, this, 0, &dwAudioEncoderThreadId);
HANDLE hRecordThread = CreateThread(NULL, NULL, ThreadFlvRecorder, this, 0, &dwRecordThreadId);
}
void CPxScreenLiveStreamingDlg::OnStopRecord()
{
g_bStop = true;
}
DWORD WINAPI ThreadVideoCapture(LPVOID lp)
{
CPxScreenLiveStreamingDlg *pDlg = (CPxScreenLiveStreamingDlg *)lp;
g_bVideoCaptureDone = false;
UINT64 ui64LastVideoTs = 0;
char szMsgBuffer[1024] = {0};
// 理论的视频时间戳差值
const int DELTA_TIME_DURATION = 1000.0 / DEFAULT_VIDEO_FRAMERATE;
SPxBuffer *psYUVBuffer = NULL;
int nFrameCnt = 0;
UINT64 ui64BaseCaptureTs = GetCurrentTimestamp();
while (true)
{
if (g_bStop)
{
break;
}
// Adjust timestamp
/*********************************************************************************/
/*ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024,
"ThreadVideoCapture nFrameCnt:%d, DELTA_TIME_DURATION:%d, %d \n",
nFrameCnt, DELTA_TIME_DURATION, (nFrameCnt * DELTA_TIME_DURATION));
OutputDebugStringA(szMsgBuffer);*/
UINT64 ui64Timestamp = nFrameCnt * DELTA_TIME_DURATION;
UINT64 ui64CurrentTs = GetCurrentTimestamp();
INT64 nDelta = ui64Timestamp - (ui64CurrentTs - ui64BaseCaptureTs);
while (nDelta > 0)
{
Sleep(1);
ui64CurrentTs = GetCurrentTimestamp();
nDelta = ui64Timestamp - (ui64CurrentTs - ui64BaseCaptureTs);
/*ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024, "ThreadVideoCapture nDelta:%I64d\n", nDelta);
OutputDebugStringA(szMsgBuffer);*/
}
/*UINT64 ui64StartCaptureTs = GetCurrentTimestamp();
if (0 == ui64LastVideoTs)
{
ui64LastVideoTs = ui64StartCaptureTs;
}
INT64 i64DeltaTs = ui64StartCaptureTs - ui64LastVideoTs;
ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024,
"ThreadVideoCapture StartCaptureTs:%I64u, LastVideoTs:%I64u, i64DeltaTs:%I64d\n",
ui64StartCaptureTs,
ui64LastVideoTs,
i64DeltaTs);
OutputDebugStringA(szMsgBuffer);
ui64LastVideoTs = ui64StartCaptureTs;*/
nFrameCnt++;
/*********************************************************************************/
// test unit #1 begin
/*CString strCurTime = CTime::GetCurrentTime().Format("%Y-%m-%d %H:%M:%S");
OutputDebugStringA(strCurTime);
Sleep(1000);*/
// test unit #1 end
// S1: capture screen in rgb format
#if DEBUG_VIDEO_TIME_ANALYZE
UINT64 ui64Start = GetCurrentTimestamp();
#endif
timeval tvTimestamp;
gettimeofday(&tvTimestamp, NULL);
pDlg->memDC.BitBlt(0, 0, pDlg->m_nScreenWidth, pDlg->m_nScreenHeight, pDlg->pDC, 0, 0, SRCCOPY);//复制屏幕图像到内存DC
GetDIBits(pDlg->memDC.m_hDC,
(HBITMAP) pDlg->memBitmap.m_hObject,
0,
pDlg->m_nScreenHeight,
pDlg->m_pBitmapBuffer,
(LPBITMAPINFO) &pDlg->m_BitmapInfoHeader,
DIB_RGB_COLORS); // 获取位图数据
#if DEBUG_VIDEO_TIME_ANALYZE
UINT64 ui64BMPDone = GetCurrentTimestamp();
ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024, "BMP: %I64u ms", ui64BMPDone - ui64Start);
OutputDebugStringA(szMsgBuffer);
#endif
// test unit begin #2 :
// to check the capure result,
// save it to a bmp file
#if VIDEO_SAVE_BMP
CString strCurTime = CTime::GetCurrentTime().Format("_%Y-%m-%d_%H-%M-%S");
CString strBmpFileName = ".\\" + strCurTime + ".bmp";
FILE *fp = fopen(strBmpFileName, "w+b");
if (NULL == fp)
{
Sleep(1);
continue;
}
fwrite(&pDlg->m_BitmapFileHeader, 1, sizeof(BITMAPFILEHEADER), fp); // 写入位图文件头
fwrite(&pDlg->m_BitmapInfoHeader, 1, sizeof(BITMAPINFOHEADER), fp); // 写入位图信息头
fwrite(pDlg->m_pBitmapBuffer, 1, pDlg->m_nBitmapBufferLen, fp); // 写入位图数据
if (fp)
{
fclose(fp);
fp = NULL;
}
#endif
// test unit end #2
// S2: rgb to yuv420p
rgb32_to_yv12_mmx((unsigned char *)pDlg->m_pYUVBuffer,
(unsigned char *)(pDlg->m_pYUVBuffer+pDlg->m_nUOffset),
(unsigned char *)(pDlg->m_pYUVBuffer+pDlg->m_nVOffset),
(unsigned char *)pDlg->m_pBitmapBuffer,
pDlg->m_nScreenWidth,
pDlg->m_nScreenHeight,
pDlg->m_nScreenWidth);
#if DEBUG_VIDEO_TIME_ANALYZE
UINT64 ui64YUVDone = GetCurrentTimestamp();
ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024, "YUV: %I64u ms", ui64YUVDone - ui64BMPDone);
OutputDebugStringA(szMsgBuffer);
#endif
// test unit #3 begin
// check the yuv
#if VIDEO_SAVE_YUV
g_WriteFile("output.yuv", pDlg->m_pYUVBuffer, pDlg->m_nYUVBufferSize);
#endif
// test unit #3 end
psYUVBuffer = g_oYUVBufferPool.GetBufferAt(g_oYUVBufferPool.GetEmptyBufferPos());
psYUVBuffer->eMediaType = kePxMediaType_Video;
psYUVBuffer->nDataLength = pDlg->m_nYUVBufferSize;
psYUVBuffer->ui64Timestamp = ui64Timestamp;
memcpy(psYUVBuffer->lpBuffer, pDlg->m_pYUVBuffer, pDlg->m_nYUVBufferSize);
// add the video encoded buffer to video buffer list
g_oYUVQueueBuffer.Push(psYUVBuffer);
}
g_bVideoCaptureDone = true;
return 0;
}
DWORD WINAPI ThreadVideoEncoder(LPVOID lp)
{
CPxScreenLiveStreamingDlg *pDlg = (CPxScreenLiveStreamingDlg *)lp;
g_bVideoEncodeDone = false;
const int DELTA_TIME_DURATION = 1000.0 / DEFAULT_VIDEO_FRAMERATE;
int nH264BytesCount = 0;
AVCodec *pCodec = NULL;
AVCodecContext *pCodecCtx = NULL;
int nRet;
AVFrame *pFrame = NULL;
AVPacket pkt;
AVCodecID codec_id = AV_CODEC_ID_H264;
avcodec_register_all();
pCodec = avcodec_find_encoder(codec_id);
if (!pCodec)
{
printf("Codec not found\n");
return -1;
}
pCodecCtx = avcodec_alloc_context3(pCodec);
if (!pCodecCtx)
{
printf("Could not allocate video codec context\n");
return -1;
}
pCodecCtx->bit_rate = 1024*1024;
/*pCodecCtx->rc_max_rate = 1024*1024;
pCodecCtx->rc_min_rate = 1024*1024;
pCodecCtx->rc_buffer_size = 1024*1024;*/
pCodecCtx->width = pDlg->m_nScreenWidth;
pCodecCtx->height = pDlg->m_nScreenHeight;
pCodecCtx->time_base.num = 1;
pCodecCtx->time_base.den = DEFAULT_VIDEO_FRAMERATE;
pCodecCtx->gop_size = DEFAULT_VIDEO_FRAMERATE;
pCodecCtx->max_b_frames = 0;
pCodecCtx->pix_fmt = AV_PIX_FMT_YUV420P;
pCodecCtx->codec_type = AVMEDIA_TYPE_VIDEO;
if (codec_id == AV_CODEC_ID_H264)
{
av_opt_set(pCodecCtx->priv_data, "preset", "slow", 0);
}
if (avcodec_open2(pCodecCtx, pCodec, NULL) < 0)
{
printf("Could not open codec\n");
return -1;
}
pFrame = av_frame_alloc();
if (!pFrame)
{
printf("Could not allocate video frame\n");
return -1;
}
int nPictureSize = avpicture_get_size(pCodecCtx->pix_fmt,
pCodecCtx->width,
pCodecCtx->height);
uint8_t* picture_buf = (uint8_t *)av_malloc(nPictureSize);
avpicture_fill((AVPicture *)pFrame,
picture_buf,
pCodecCtx->pix_fmt,
pCodecCtx->width,
pCodecCtx->height);
int nVideoFrameCnt = 0;
int got_packet = 0;
SPxBuffer sTempBuffer;
char szH264OutputFile[256] = "output.h264";
int nEncodeFrameCnt = 0;
while (true)
{
if (g_bVideoCaptureDone && (0 == g_oYUVQueueBuffer.Size()))
{
break;
}
while (!g_oYUVQueueBuffer.IsEmpty())
{
SPxBuffer *psPxBuffer = g_oYUVQueueBuffer.Front();
if (NULL == psPxBuffer->lpBuffer)
{
Sleep(1);
continue;
}
#if VIDEO_SAVE_YUV_FROM_BUFFERLIST
g_WriteFile("output_v2.yuv", psPxBuffer->lpBuffer, psPxBuffer->nDataLength);
#endif
// S3: encode yuv420p
pFrame->data[0] = psPxBuffer->lpBuffer; // Y
pFrame->data[1] = psPxBuffer->lpBuffer + pDlg->m_nUOffset; // U
pFrame->data[2] = psPxBuffer->lpBuffer + pDlg->m_nVOffset; // V
av_init_packet(&pkt);
pkt.data = NULL; // packet data will be allocated by the encoder
pkt.size = 0;
pFrame->pts= psPxBuffer->ui64Timestamp;
/* encode the image */
nRet = avcodec_encode_video2(pCodecCtx, &pkt, pFrame, &got_packet);
if (nRet < 0)
{
printf("Error encoding frame\n");
return -1;
}
if (got_packet)
{
if (pkt.size > 0)
{
printf("Succeed to encode frame: %5d\tsize:%5d\n", nVideoFrameCnt, pkt.size);
nH264BytesCount += pkt.size;
#if VIDEO_SAVE_H264
g_WriteFile(szH264OutputFile, pkt.data, pkt.size);
#endif
#if DEBUG_VIDEO_TIME_ANALYZE
UINT64 ui64H264Done = GetCurrentTimestamp();
ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024, "264: %I64u ms", ui64H264Done - ui64YUVDone);
OutputDebugStringA(szMsgBuffer);
#endif
if (pkt.size > 5)
{
sTempBuffer.bVideoKeyFrame = g_IsKeyFrame(pkt.data, pkt.size);
}
sTempBuffer.lpBuffer = pkt.data;
sTempBuffer.nDataLength = pkt.size;
sTempBuffer.eMediaType = kePxMediaType_Video;
sTempBuffer.ui64Timestamp = nEncodeFrameCnt * DELTA_TIME_DURATION;
int nPos = g_oCodedBufferPool.GetEmptyBufferPos();
g_oCodedBufferPool.SetBufferAt(nPos, &sTempBuffer);
SPxBuffer *psPxBuffer = g_oCodedBufferPool.GetBufferAt(nPos);
if (NULL != psPxBuffer)
{
g_oCodedQueueBuffer.Push(psPxBuffer);
}
av_free_packet(&pkt);
nEncodeFrameCnt++;
}
}
g_oYUVQueueBuffer.Pop();
}
Sleep(1);
}
got_packet = 1;
while (got_packet)
{
nRet = avcodec_encode_video2(pCodecCtx, &pkt, NULL, &got_packet);
if (nRet < 0)
{
printf("Error encoding frame\n");
return -1;
}
if (got_packet)
{
printf("Flush Encoder: Succeed to encode 1 frame!\tsize:%5d\n", pkt.size);
#if VIDEO_SAVE_H264
g_WriteFile(szH264OutputFile, pkt.data, pkt.size);
#endif
timeval tvTimestamp;
gettimeofday(&tvTimestamp, NULL);
int nNALType = 0;
if (pkt.size > 5)
{
sTempBuffer.bVideoKeyFrame = g_IsKeyFrame(pkt.data, pkt.size);
}
sTempBuffer.lpBuffer = pkt.data;
sTempBuffer.nDataLength = pkt.size;
sTempBuffer.eMediaType = kePxMediaType_Video;
sTempBuffer.ui64Timestamp = nEncodeFrameCnt * DELTA_TIME_DURATION;
int nPos = g_oCodedBufferPool.GetEmptyBufferPos();
g_oCodedBufferPool.SetBufferAt(nPos, &sTempBuffer);
SPxBuffer *psPxBuffer = g_oCodedBufferPool.GetBufferAt(nPos);
if (NULL != psPxBuffer)
{
g_oCodedQueueBuffer.Push(psPxBuffer);
}
av_free_packet(&pkt);
nEncodeFrameCnt++;
}
}
avcodec_close(pCodecCtx);
av_free(pCodecCtx);
//av_freep(&pFrame->data[0]);
av_frame_free(&pFrame);
int nH264KB = nH264BytesCount / 1024.0;
int nH264MB = nH264KB / 1024.0;
g_bVideoEncodeDone = true;
return 0;
}
DWORD WINAPI ThreadAudioCapture(LPVOID lp)
{
CPxScreenLiveStreamingDlg *pDlg = (CPxScreenLiveStreamingDlg *)lp;
g_bAudioCaptureDone = false;
HWAVEIN hWaveIn = NULL;
memset(&g_sWaveFormat,0,sizeof(WAVEFORMATEX));
g_sWaveFormat.wFormatTag = WAVE_FORMAT_PCM;
g_sWaveFormat.nChannels = 1; // 声道数 1：单声道 2：双声道
g_sWaveFormat.wBitsPerSample = 16;
g_sWaveFormat.nSamplesPerSec = AUDIO_SAMPLE_PER_SECOND;
/*
If wFormatTag = WAVE_FORMAT_PCM,
set nBlockAlign to (nChannels*wBitsPerSample)/8,
which is the size of a single audio frame.
*/
g_sWaveFormat.nBlockAlign = g_sWaveFormat.nChannels * g_sWaveFormat.wBitsPerSample / 8;
g_sWaveFormat.nAvgBytesPerSec = g_sWaveFormat.nBlockAlign * g_sWaveFormat.nSamplesPerSec;
g_sWaveFormat.cbSize = 0;
int nAudioSampleCount = 0;
char szMsgBuffer[1024] = {0};
MMRESULT mmReturn = 0;
//DWORD mThreadID = ::GetCurrentThreadId();
WAVEHDR wHdr1; //采集音频时包含数据缓存的结构体
//使用waveInOpen函数开启音频采集
/*HANDLE wait = CreateEvent(NULL, 0, 0, NULL);
mmReturn = ::waveInOpen(&hWaveIn, WAVE_MAPPER, &g_sWaveFormat, (DWORD_PTR)wait, 0L, CALLBACK_EVENT);*/
// WAVE_MAPPER，系统则会自动寻找合适设备
//mmReturn = ::waveInOpen(&hWaveIn, WAVE_MAPPER, &g_sWaveFormat, NULL, 0L, CALLBACK_NULL);
// open wavein device
//mmReturn = ::waveInOpen( &hWaveIn, WAVE_MAPPER, &g_sWaveFormat, m_ThreadID, NULL, CALLBACK_THREAD);
mmReturn = waveInOpen(&hWaveIn,
WAVE_MAPPER,
&g_sWaveFormat,
(DWORD)(MicrophoneCallback),
NULL,
CALLBACK_FUNCTION);
if(mmReturn)
{
OutputDebugStringA("waveInOpen Already Start()");
return 0;
}
SPxBuffer *psPCMBuffer = NULL;
while (true)
{
if (g_bStop)
{
break;
}
// test sample count begin
/*sprintf_s(szMsgBuffer, 1024, "ThreadAudioEncoder nAudioSampleCount:%d\n", nAudioSampleCount);
OutputDebugStringA(szMsgBuffer);*/
nAudioSampleCount++;
// test sample count end
psPCMBuffer = g_oPCMBufferPool.GetBufferAt(g_oPCMBufferPool.GetEmptyBufferPos());
psPCMBuffer->eMediaType = kePxMediaType_Audio;
wHdr1.lpData = (LPSTR)psPCMBuffer->lpBuffer;
wHdr1.dwBufferLength = g_oPCMBufferPool.GetBufferSize();
wHdr1.dwBytesRecorded = 0;
wHdr1.dwUser = 0;
wHdr1.dwFlags = 0;
wHdr1.dwLoops = 1;
waveInPrepareHeader(hWaveIn, &wHdr1, sizeof(WAVEHDR));//准备一个波形数据块头用于录音, 将音频数据块准备给音频输入设备使用
waveInAddBuffer(hWaveIn, &wHdr1, sizeof(WAVEHDR));//指定波形数据块为录音输入缓存, 将音频数据块发送给音频驱动程序
// Capture the audio of microphone (PCM Format)
// and get the timeval (to calculate the timestamp)
waveInStart(hWaveIn);//开始录音
Sleep(200);//等待声音录制1s
waveInReset(hWaveIn);//停止录音
psPCMBuffer->nDataLength = wHdr1.dwBytesRecorded;
psPCMBuffer->ui64Timestamp = 0;
g_oPCMQueueBuffer.Push(psPCMBuffer);
#if AUDIO_SAVE_PCM
g_WriteFile("output.pcm", psPCMBuffer->lpBuffer, wHdr1.dwBytesRecorded);
ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024, "dwBytesRecorded:%lu\n", wHdr1.dwBytesRecorded);
OutputDebugStringA(szMsgBuffer);
#endif
}
::waveInClose(hWaveIn);
g_bAudioCaptureDone = true;
return 0;
}
DWORD CALLBACK MicrophoneCallback(HWAVEIN hwavein, UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2)
{
//这个CIMAADPCMDlg就是你的音频采集类
CPxScreenLiveStreamingDlg *pWnd = (CPxScreenLiveStreamingDlg*)dwInstance;
switch(uMsg)
{
case WIM_OPEN:
#if DEBUG_AUDIO_CAPTURE_PCM
OutputDebugStringA("WIM_OPEN\n");
#endif
break;
case WIM_DATA:
#if DEBUG_AUDIO_CAPTURE_PCM
OutputDebugStringA("WIM_DATA\n");
#endif
//这里就是对采集到的数据做处理的地方，我是做了发送处理
//((PWAVEHDR)dwParam1)->lpData这就是采集到的数据指针
//((PWAVEHDR)dwParam1)->dwBytesRecorded这就是采集到的数据长度
//re = send(pWnd->sends,((PWAVEHDR)dwParam1)->lpData,((PWAVEHDR)dwParam1)->dwBytesRecorded,0);
//处理完了之后还要再把这个缓冲数组加回去
//pWnd->win代表是否继续采集，因为当停止采集的时候，只有当所有的
//缓冲数组都腾出来之后才能close，所以需要停止采集时就不要再waveInAddBuffer了
/*if(pWnd->win)
waveInAddBuffer (hwavein, (PWAVEHDR) dwParam1, sizeof (WAVEHDR)) ;
TRACE("%d\n",re); */
char szMsgBuffer[1024];
sprintf_s(szMsgBuffer, 1024, "MicrophoneCallback dwBytesRecorded:%lu\n", ((PWAVEHDR)dwParam1)->dwBytesRecorded );
//OutputDebugStringA(szMsgBuffer);
break;
case WIM_CLOSE:
#if DEBUG_AUDIO_CAPTURE_PCM
OutputDebugStringA("WIM_CLOSE\n");
#endif
break;
default:
break;
}
return 0;
}
DWORD WINAPI ThreadAudioEncoder(LPVOID lp)
{
CPxScreenLiveStreamingDlg *pDlg = (CPxScreenLiveStreamingDlg *)lp;
g_bAudioEncodeDone = false;
AVCodec *pCodec = NULL;
AVCodecContext *pCodecCtx = NULL;
AVFrame *pFrame = NULL;
uint8_t *pui8FrameBuffer = NULL;
int nRet = 0;
int got_output = 0;
int size = 0;
int nFrameCnt = 0;
AVPacket pkt;
AVCodecID nCodecId = AV_CODEC_ID_AAC;
char szOutputFileName[] = "output.aac";
avcodec_register_all();
pCodec = avcodec_find_encoder(nCodecId);
if (!pCodec)
{
printf("Codec not found\n");
return -1;
}
pCodecCtx = avcodec_alloc_context3(pCodec);
if (!pCodecCtx)
{
printf("Could not allocate video codec context\n");
return -1;
}
pCodecCtx->codec_id = nCodecId;
pCodecCtx->codec_type = AVMEDIA_TYPE_AUDIO;
pCodecCtx->sample_fmt = AV_SAMPLE_FMT_S16;
pCodecCtx->sample_rate = AUDIO_SAMPLE_PER_SECOND;
pCodecCtx->channel_layout = AV_CH_LAYOUT_MONO;
//pCodecCtx->channel_layout=AV_CH_LAYOUT_STEREO;
pCodecCtx->channels = av_get_channel_layout_nb_channels(pCodecCtx->channel_layout);
pCodecCtx->bit_rate = 64000;
if (avcodec_open2(pCodecCtx, pCodec, NULL) < 0)
{
printf("Could not open codec\n");
return -1;
}
pFrame = av_frame_alloc();
pFrame->nb_samples = pCodecCtx->frame_size;
pFrame->format = pCodecCtx->sample_fmt;
size = av_samples_get_buffer_size(NULL,
pCodecCtx->channels,
pCodecCtx->frame_size,
pCodecCtx->sample_fmt,
1);
pui8FrameBuffer = (uint8_t *)av_malloc(size);
avcodec_fill_audio_frame(pFrame,
pCodecCtx->channels,
pCodecCtx->sample_fmt,
(const uint8_t*)pui8FrameBuffer,
size,
1);
av_init_packet(&pkt);
pkt.data = NULL; // packet data will be allocated by the encoder
pkt.size = 0;
double AUDIO_DELTA_TIME_DURATION = 1024 * 1000.0 / pCodecCtx->sample_rate;
char szMsgBuffer[1024] = {0};
ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024, "size: %d, DELTA_TIME_DURATION:%.2f", size, AUDIO_DELTA_TIME_DURATION);
OutputDebugStringA(szMsgBuffer);
int nPosInFrameBuffer = 0;
SPxBuffer sTempBuffer;
int nAudioFrameCnt = 0;
while (true)
{
if (g_bAudioCaptureDone && (0 == g_oPCMQueueBuffer.Size()))
{
break;
}
while (!g_oPCMQueueBuffer.IsEmpty())
{
SPxBuffer *psPxBuffer = g_oPCMQueueBuffer.Front();
if (NULL == psPxBuffer->lpBuffer)
{
Sleep(1);
continue;
}
#if AUDIO_SAVE_PCM_FROM_BUFFERLIST
g_WriteFile("output_v2.pcm", psPxBuffer->lpBuffer, psPxBuffer->nDataLength);
ZeroMemory(szMsgBuffer, 1024);
sprintf_s(szMsgBuffer, 1024, "psPxBuffer->nDataLength: %d\n", psPxBuffer->nDataLength);
OutputDebugStringA(szMsgBuffer);
#endif
int nPosInPCMBuffer = 0;
do
{
int nBytesLeft = psPxBuffer->nDataLength - nPosInPCMBuffer;
int nBytesNeeded = size - nPosInFrameBuffer;
if (nBytesLeft >= nBytesNeeded)
{
memcpy(pui8FrameBuffer + nPosInFrameBuffer,
psPxBuffer->lpBuffer + nPosInPCMBuffer,
nBytesNeeded);