/usr/include/ptlib/unix/ptlib/bevideo.h is in libpt2.4.5-dev 2.4.5-2build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | #include <ptlib.h>
#include <ptlib/video.h>
#include <ptlib/videoio.h>
#include <ptlib/vconvert.h>
class VideoConsumer;
class BMediaRoster;
class PVideoInputThread;
#include <MediaNode.h>
/**This class defines a BeOS video input device.
*/
class PVideoInputDevice_BeOSVideo : public PVideoInputDevice
{
PCLASSINFO(PVideoInputDevice_BeOSVideo, PVideoInputDevice);
public:
/** Create a new video input device.
*/
PVideoInputDevice_BeOSVideo();
/**Close the video input device on destruction.
*/
~PVideoInputDevice_BeOSVideo() { Close(); }
/** Is the device a camera, and obtain video
*/
static PStringList GetInputDeviceNames();
virtual PStringList GetDeviceNames() const
{ return GetInputDeviceNames(); }
/**Open the device given the device name.
*/
virtual PBoolean Open(
const PString & deviceName, /// Device name to open
PBoolean startImmediate = PTrue /// Immediately start device
);
/**Determine if the device is currently open.
*/
virtual PBoolean IsOpen();
/**Close the device.
*/
virtual PBoolean Close();
/**Start the video device I/O.
*/
virtual PBoolean Start();
/**Stop the video device I/O capture.
*/
virtual PBoolean Stop();
/**Determine if the video device I/O capture is in progress.
*/
virtual PBoolean IsCapturing();
/**Get the maximum frame size in bytes.
Note a particular device may be able to provide variable length
frames (eg motion JPEG) so will be the maximum size of all frames.
*/
virtual PINDEX GetMaxFrameBytes();
/**Grab a frame.
*/
virtual PBoolean GetFrame(
PBYTEArray & frame
);
/**Grab a frame, after a delay as specified by the frame rate.
*/
virtual PBoolean GetFrameData(
BYTE * buffer, /// Buffer to receive frame
PINDEX * bytesReturned = NULL /// OPtional bytes returned.
);
/**Grab a frame. Do not delay according to the current frame rate parameter.
*/
virtual PBoolean GetFrameDataNoDelay(
BYTE * buffer, /// Buffer to receive frame
PINDEX * bytesReturned = NULL /// OPtional bytes returned.
);
/**Try all known video formats & see which ones are accepted by the video driver
*/
virtual PBoolean TestAllFormats();
public:
virtual PBoolean SetColourFormat(const PString & colourFormat);
virtual PBoolean SetFrameRate(unsigned rate);
virtual PBoolean SetFrameSize(unsigned width, unsigned height);
friend PVideoInputThread;
private:
status_t StartNodes();
void StopNodes();
protected:
BMediaRoster* fMediaRoster;
VideoConsumer* fVideoConsumer;
media_output fProducerOut;
media_input fConsumerIn;
media_node fTimeSourceNode;
media_node fProducerNode;
port_id fPort;
PBoolean isCapturingNow;
PVideoInputThread* captureThread;
};
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