[Openh323-cvs] pwlib/plugins/vidinput_v4l2 Makefile,NONE,1.1 vidinput_v4l2.cxx,NONE,1.1 vidinput_v4l2.h,NONE,1.1

[Damien S. <dsa...@us...>]

Update of /cvsroot/openh323/pwlib/plugins/vidinput_v4l2
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv15114/vidinput_v4l2

Added Files:
	Makefile vidinput_v4l2.cxx vidinput_v4l2.h 
Log Message:
Added initial port to the new pwlib API/V4L2 API for the video4linux 2 code of Guilhem Tardy. Thanks!


--- NEW FILE: vidinput_v4l2.cxx ---
/*
 * video4linux2.cxx
 *
 * Classes to support streaming video input (grabbing) and output.
 *
 * Portable Windows Library
 *
 * Copyright (c) 1998-2000 Equivalence Pty. Ltd.
 * Copyright (c) 2003 March Networks
 *
 * 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.
[...989 lines suppressed...]
    frameHue = -1;
  else
    frameHue = c.value;

  *whiteness  = frameWhiteness;
  *brightness = frameBrightness;
  *colour     = frameColour;
  *contrast   = frameContrast;
  *hue        = frameHue;

  return TRUE;
}

BOOL PVideoInputV4l2Device::TestAllFormats()
{
  return TRUE;
}


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

--- NEW FILE: Makefile ---
ifndef PWLIBDIR
PWLIBDIR = $(HOME)/pwlib
endif

PLUGIN_NAME	= v4l2
PLUGIN_FAMILY	= device/videoinput
PLUGIN_LIBS	=
PLUGIN_SOURCES	= vidinput_v4l2.cxx

include ../../make/plugins.mak

--- NEW FILE: vidinput_v4l2.h ---
#ifndef _PVIDEOIOV4L2
#define _PVIDEOIOV4L2


#include <sys/mman.h>
#include <sys/time.h>

#include <ptlib.h>
#include <ptlib/videoio.h>
#include <ptlib/vconvert.h>

#include <linux/videodev.h>


class PVideoInputV4l2Device: public PVideoInputDevice
{

  PCLASSINFO(PVideoInputV4l2Device, PVideoInputDevice);
      

public:
  PVideoInputV4l2Device();
  ~PVideoInputV4l2Device();
  
  void ReadDeviceDirectory (PDirectory, POrdinalToString &);

  static PStringList GetInputDeviceNames();

  PStringList GetDeviceNames() const
  { return GetInputDeviceNames(); }

  BOOL Open(const PString &deviceName, BOOL startImmediate);

  BOOL IsOpen();

  BOOL Close();

  BOOL Start();
  BOOL Stop();

  BOOL IsCapturing();

  PINDEX GetMaxFrameBytes();

  BOOL GetFrame(PBYTEArray & frame);
  BOOL GetFrameData(BYTE*, PINDEX*);
  BOOL GetFrameDataNoDelay(BYTE*, PINDEX*);

  BOOL GetFrameSizeLimits(unsigned int&, unsigned int&,
			  unsigned int&, unsigned int&);

  BOOL TestAllFormats();

  BOOL SetFrameSize(unsigned int, unsigned int);
  BOOL SetFrameRate(unsigned int);
  BOOL VerifyHardwareFrameSize(unsigned int, unsigned int);

  BOOL GetParameters(int*, int*, int*, int*, int*);

  BOOL SetColourFormat(const PString&);

  int GetContrast();
  BOOL SetContrast(unsigned int);
  int GetBrightness();
  BOOL SetBrightness(unsigned int);
  int GetWhiteness();
  BOOL SetWhiteness(unsigned int);
  int GetColour();
  BOOL SetColour(unsigned int);
  int GetHue();
  BOOL SetHue(unsigned int);

  BOOL SetVideoChannelFormat(int, PVideoDevice::VideoFormat);
  BOOL SetVideoFormat(PVideoDevice::VideoFormat);
  int GetNumChannels();
  BOOL SetChannel(int);

  BOOL NormalReadProcess(BYTE*, PINDEX*);

  void ClearMapping();

  BOOL SetMapping();

  struct v4l2_capability videoCapability;
  struct v4l2_streamparm videoStreamParm;
  BOOL   canRead;
  BOOL   canStream;
  BOOL   canSelect;
  BOOL   canSetFrameRate;
  BOOL   isMapped;
#define NUM_VIDBUF 4
  BYTE * videoBuffer[NUM_VIDBUF];
  uint    videoBufferCount;

  int    videoFd;
  int    frameBytes;
  BOOL   started;
};

#endif