camera/QCamera2/HAL/QCameraChannel.h

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#ifndef __QCAMERA_CHANNEL_H__
#define __QCAMERA_CHANNEL_H__

#include <hardware/camera.h>
#include "QCameraStream.h"

extern "C" {
#include <mm_camera_interface.h>
}

namespace qcamera {

class QCameraChannel
{
public:
    QCameraChannel(uint32_t cam_handle,
                   mm_camera_ops_t *cam_ops);
    QCameraChannel();
    virtual ~QCameraChannel();
    virtual int32_t init(mm_camera_channel_attr_t *attr,
                         mm_camera_buf_notify_t dataCB, // data CB for channel data
                         void *userData);
    // Owner of memory is transferred from the caller to the caller with this call.
    virtual int32_t addStream(QCameraAllocator& allocator,
                              QCameraHeapMemory *streamInfoBuf,
                              uint8_t minStreamBufnum,
                              cam_padding_info_t *paddingInfo,
                              stream_cb_routine stream_cb,
                              void *userdata);
    virtual int32_t start();
    virtual int32_t stop();
    virtual int32_t bufDone(mm_camera_super_buf_t *recvd_frame);
    virtual int32_t processZoomDone(preview_stream_ops_t *previewWindow,
                                    cam_crop_data_t &crop_info);
    QCameraStream *getStreamByHandle(uint32_t streamHandle);
    uint32_t getMyHandle() const {return m_handle;};
    uint8_t getNumOfStreams() const {return m_numStreams;};
    QCameraStream *getStreamByIndex(uint8_t index);
    QCameraStream *getStreamByServerID(uint32_t serverID);

protected:
    uint32_t m_camHandle;
    mm_camera_ops_t *m_camOps;
    bool m_bIsActive;

    uint32_t m_handle;
    uint8_t m_numStreams;
    QCameraStream *mStreams[MAX_STREAM_NUM_IN_BUNDLE];
    mm_camera_buf_notify_t mDataCB;
    void *mUserData;
};

// burst pic channel: i.e. zsl burst mode
class QCameraPicChannel : public QCameraChannel
{
public:
    QCameraPicChannel(uint32_t cam_handle,
                      mm_camera_ops_t *cam_ops);
    QCameraPicChannel();
    virtual ~QCameraPicChannel();
    int32_t takePicture(uint8_t num_of_snapshot);
    int32_t cancelPicture();
};

// video channel class
class QCameraVideoChannel : public QCameraChannel
{
public:
    QCameraVideoChannel(uint32_t cam_handle,
                        mm_camera_ops_t *cam_ops);
    QCameraVideoChannel();
    virtual ~QCameraVideoChannel();
    int32_t releaseFrame(const void *opaque, bool isMetaData);
};

// reprocess channel class
class QCameraReprocessChannel : public QCameraChannel
{
public:
    QCameraReprocessChannel(uint32_t cam_handle,
                            mm_camera_ops_t *cam_ops);
    QCameraReprocessChannel();
    virtual ~QCameraReprocessChannel();
    int32_t addReprocStreamsFromSource(QCameraAllocator& allocator,
                                       cam_pp_feature_config_t &config,
                                       QCameraChannel *pSrcChannel,
                                       uint8_t minStreamBufNum,
                                       cam_padding_info_t *paddingInfo);
    // online reprocess
    int32_t doReprocess(mm_camera_super_buf_t *frame);
    // offline reprocess
    int32_t doReprocess(int buf_fd, uint32_t buf_length, int32_t &ret_val);

private:
    QCameraStream *getStreamBySrouceHandle(uint32_t srcHandle);

    uint32_t mSrcStreamHandles[MAX_STREAM_NUM_IN_BUNDLE];
    QCameraChannel *m_pSrcChannel; // ptr to source channel for reprocess
};

}; // namespace qcamera

#endif /* __QCAMERA_CHANNEL_H__ */