videoio.h

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/*
 * videoio.h
 *
 * Classes to support streaming video input (grabbing) and output.
 *
 * Portable Windows Library
 *
 * Copyright (c) 1993-2000 Equivalence Pty. Ltd.
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Portable Windows Library.
 *
 * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
 *
 * Contributor(s): ______________________________________.
 *
 * $Revision: 19008 $
 * $Author: rjongbloed $
 * $Date: 2007-11-29 09:17:41 +0000 (Thu, 29 Nov 2007) $
 */

///////////////////////////////////////////////////////////////////////////////
// PVideoDevice

  public:
    virtual PBoolean SetColourFormat(const PString & colourFormat);
    virtual PBoolean SetFrameRate(unsigned rate);
    virtual PBoolean SetFrameSize(unsigned width, unsigned height);

  protected:
    static LRESULT CALLBACK ErrorHandler(HWND hWnd, int id, LPCSTR err);
    LRESULT HandleError(int id, LPCSTR err);
    static LRESULT CALLBACK VideoHandler(HWND hWnd, LPVIDEOHDR vh);
    LRESULT HandleVideo(LPVIDEOHDR vh);
    PBoolean InitialiseCapture();
    void HandleCapture();

    PThread     * captureThread;
    PSyncPoint    threadStarted;

    HWND          hCaptureWindow;

    PSyncPoint    frameAvailable;
    LPBYTE        lastFramePtr;
    unsigned      lastFrameSize;
    PMutex        lastFrameMutex;
    PBoolean          isCapturingNow;

  friend class PVideoInputThread;

// End Of File ///////////////////////////////////////////////////////////////