织梦的网站地图更新,曹鹏wordpress,北京网站建设明细,娱乐网站名字前言 本播放器在VS2019下开发#xff0c;使用ffmpegD3D实现视频播放渲染功能。同时本播放器支持录像功能、截图功能、音视频播放功能、码流信息显示、电子放大功能等。D3D的渲染同时支持surface和texture两种方式#xff0c;电子放大功能是在D3D Texture方式下进行实现。以下…前言 本播放器在VS2019下开发使用ffmpegD3D实现视频播放渲染功能。同时本播放器支持录像功能、截图功能、音视频播放功能、码流信息显示、电子放大功能等。D3D的渲染同时支持surface和texture两种方式电子放大功能是在D3D Texture方式下进行实现。以下为该功能的一些核心代码具体可以通过本文末的链接进行工程源码下载。
一、播放器电子放大功能操作 步骤一播放RTSP 视频流后点击开启电子放大功能按钮如下图 步骤二点击按钮后视频上会出现电子放大的变倍信息本功能支持鼠标滚轮进行图形放大与缩小也支持鼠标拖动视频进行显示如下图 步骤三鼠标滚轮操作电子放大的放大缩小功能如下图 步骤四按住鼠标左键后可以拖动视频进行显示如下图 步骤五点击关闭电子放大按钮后恢复正常显示 二、电子放大相关源码
CVideoPlayer鼠标事件
void CVideoPlayer::OnLButtonDown(UINT nFlags, CPoint point)
{myprint(OnLButtonDown);SetFocus();if (m_bDigitalZoom) // Digital Zoom{m_D3DRender.SetStartPt(point);m_bLBtnDown true;}CStatic::OnLButtonDown(nFlags, point);
}void CVideoPlayer::OnLButtonUp(UINT nFlags, CPoint point)
{m_bLBtnDown false;ReleaseCapture();
}BOOL CVideoPlayer::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt)
{ myprint(OnMouseWheel);CRect rcClient;GetClientRect(rcClient);CPoint ptTemp pt;::ScreenToClient(m_hWnd, ptTemp);if (!PtInRect(rcClient, ptTemp))return FALSE;m_ptWheel pt;::ScreenToClient(m_hWnd, m_ptWheel);if (m_bDigitalZoom){zDelta / WHEEL_DELTA;myprint(OnMouseWheel zDelta:%d, zDelta);if (zDelta 0){for (short i 0; i zDelta; i)m_D3DRender.ZoomOut();}else{for (short i 0; i zDelta; i--)m_D3DRender.ZoomIn();}return TRUE;}return FALSE;
}void CVideoPlayer::OnMouseMove(UINT nFlags, CPoint point)
{if (m_bPlaying false)return;SetFocus();if (m_bLBtnDown m_bDigitalZoom){CRect rc;GetClientRect(rc);m_D3DRender.MoveToPtStart(point, rc);}CStatic::OnMouseMove(nFlags, point);
}CD3DRender处理
//zoom
void CD3DRender::ZoomIn()
{m_Radius m_RadiusFirst / DEFAULT_ZOOM_TIMES;myprint(ZoomIn m_RadiusFirst:%lf m_Radius:%lf\n, m_RadiusFirst, m_Radius);if (m_Radius DEFAULT_ZOOM_TIMES){m_Radius DEFAULT_ZOOM_TIMES;}D3DXVECTOR3 position(-x_curCam, y_curCam, sinf(m_Angle) * m_Radius);D3DXVECTOR3 target(-x_curCam, y_curCam, 0.0f);D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);D3DXMATRIX V;D3DXMatrixLookAtLH(V, position, target, up);m_pDirect3DDevice-SetTransform(D3DTS_VIEW, V);
}void CD3DRender::ZoomOut()
{m_Radius - m_RadiusFirst / DEFAULT_ZOOM_TIMES;myprint(ZoomOut m_RadiusFirst:%lf m_Radius:%lf\n, m_RadiusFirst, m_Radius);if (m_Radius 1.1f){m_Radius 1.1f;}D3DXVECTOR3 position(-x_curCam, y_curCam, sinf(m_Angle) * m_Radius);D3DXVECTOR3 target(-x_curCam, y_curCam, 0.0f);D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);D3DXMATRIX V;D3DXMatrixLookAtLH(V, position, target, up);m_pDirect3DDevice-SetTransform(D3DTS_VIEW, V);
}void CD3DRender::ResetZoom()
{x_Cam x_curCam 0;y_Cam y_curCam 0;m_Radius m_RadiusFirst;m_Angle m_AngleFirst;D3DXVECTOR3 position(cosf(m_Angle) * m_Radius, 0.0f, sinf(m_Angle) * m_Radius);D3DXVECTOR3 target(0.0f, 0.0f, 0.0f);D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);D3DXMATRIX V;D3DXMatrixLookAtLH(V, position, target, up);m_pDirect3DDevice-SetTransform(D3DTS_VIEW, V);
}HRESULT CD3DRender::AppendZoomTextInfo(TCHAR* sText, CRect rcText)
{my_mutex_lock(m_pDrawMutex);memset(m_DigZoomInfo, 0, sizeof(StreamInfo_t));_sntprintf_s(m_DigZoomInfo.sText, sizeof(m_DigZoomInfo.sText), sizeof(m_DigZoomInfo.sText) - 1, %s, sText);m_DigZoomInfo.rcText.top rcText.top;m_DigZoomInfo.rcText.left rcText.left;m_DigZoomInfo.rcText.right rcText.right;m_DigZoomInfo.rcText.bottom rcText.bottom;my_mutex_unlock(m_pDrawMutex);return 0;
}HRESULT CD3DRender::ClearZoomTextInfo()
{my_mutex_lock(m_pDrawMutex);memset(m_DigZoomInfo, 0, sizeof(StreamInfo_t));my_mutex_unlock(m_pDrawMutex);return 0;
}void CD3DRender::D3DDrawZoomText()
{my_mutex_lock(m_pDrawMutex);m_pD3DFont-DrawText(NULL, m_DigZoomInfo.sText, -1, m_DigZoomInfo.rcText, DT_LEFT/*DT_CENTER | DT_VCENTER*/, D3DCOLOR_XRGB(220, 20, 60));my_mutex_unlock(m_pDrawMutex);
}void CD3DRender::SetStartPt(::CPoint pt)
{pt_start pt;x_Cam x_curCam;y_Cam y_curCam;
}void CD3DRender::MoveToPtStart(::CPoint pt, CRect rc)
{float x x_Cam 40.0f * ((float)m_Radius / 20.0f) * (float)(pt.x - pt_start.x) / (float)(rc.right - rc.left);float y y_Cam 40.0f * ((float)m_Radius / 20.0f) * (float)(pt.y - pt_start.y) / (float)(rc.bottom - rc.top);x_curCam x;y_curCam y;myprint(position( %f, %f, %f) x_Cam %f, y_Cam %f\n, x, y, sinf(m_Angle) * m_Radius, x_Cam, y_Cam);myprint(rc(%d, %d, %d, %d), rc.left, rc.top, rc.right, rc.bottom);D3DXVECTOR3 position(-x, y, sinf(m_Angle) * m_Radius);D3DXVECTOR3 target(-x, y, 0.0f);D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);D3DXMATRIX V;D3DXMatrixLookAtLH(V, position, target, up);m_pDirect3DDevice-SetTransform(D3DTS_VIEW, V);
}
三、相关下载
链接1: 可执行exe下载 链接2: 播放器工程源码下载
