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/* Common interface for all streaming / capture cards
* used by SPICE streaming-agent.
*
* \copyright
* Copyright 2016-2017 Red Hat Inc. All rights reserved.
*/
#ifndef SPICE_STREAMING_AGENT_FRAME_CAPTURE_HPP
#define SPICE_STREAMING_AGENT_FRAME_CAPTURE_HPP
#include <cstdio>
#include <spice/enums.h>
namespace SpiceStreamingAgent {
struct FrameSize
{
unsigned width;
unsigned height;
};
struct FrameInfo
{
FrameSize size;
/*! Memory buffer, valid till next frame is read */
const void *buffer;
size_t buffer_size;
/*! Start of a new stream */
bool stream_start;
};
/*!
* Pure base class implementing the frame capture
*/
class FrameCapture
{
public:
virtual ~FrameCapture()=default;
/*! Grab a frame
* This function will wait for next frame.
* Capture is started if needed.
*/
virtual FrameInfo CaptureFrame()=0;
/*! Reset capturing
* This will reset to beginning state
*/
virtual void Reset()=0;
/*!
* Get video codec used to encode last frame
*/
virtual SpiceVideoCodecType VideoCodecType() const=0;
protected:
FrameCapture()=default;
FrameCapture(const FrameCapture&)=delete;
void operator=(const FrameCapture&)=delete;
};
}
#endif // SPICE_STREAMING_AGENT_FRAME_CAPTURE_HPP
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