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#ifndef ANDROID_DVR_BUFFER_H_
#define ANDROID_DVR_BUFFER_H_
#include <stdbool.h>
#include <stdint.h>
#include <sys/cdefs.h>
#include <memory>
__BEGIN_DECLS
typedef struct DvrWriteBuffer DvrWriteBuffer;
typedef struct DvrReadBuffer DvrReadBuffer;
typedef struct DvrBuffer DvrBuffer;
typedef struct AHardwareBuffer AHardwareBuffer;
struct native_handle;
// Destroys the write buffer.
void dvrWriteBufferDestroy(DvrWriteBuffer* write_buffer);
// Returns 1 if the given write buffer object contains a buffer, 0 otherwise.
int dvrWriteBufferIsValid(DvrWriteBuffer* write_buffer);
// Returns the global BufferHub id of this buffer.
int dvrWriteBufferGetId(DvrWriteBuffer* write_buffer);
// Returns an AHardwareBuffer for the underlying buffer.
// Caller must call AHardwareBuffer_release on hardware_buffer.
int dvrWriteBufferGetAHardwareBuffer(DvrWriteBuffer* write_buffer,
AHardwareBuffer** hardware_buffer);
// Destroys the read buffer.
void dvrReadBufferDestroy(DvrReadBuffer* read_buffer);
// Returns 1 if the given write buffer object contains a buffer, 0 otherwise.
int dvrReadBufferIsValid(DvrReadBuffer* read_buffer);
// Returns the global BufferHub id of this buffer.
int dvrReadBufferGetId(DvrReadBuffer* read_buffer);
// Returns an AHardwareBuffer for the underlying buffer.
// Caller must call AHardwareBuffer_release on hardware_buffer.
int dvrReadBufferGetAHardwareBuffer(DvrReadBuffer* read_buffer,
AHardwareBuffer** hardware_buffer);
// Destroys the buffer.
void dvrBufferDestroy(DvrBuffer* buffer);
// Gets an AHardwareBuffer from the buffer.
// Caller must call AHardwareBuffer_release on hardware_buffer.
int dvrBufferGetAHardwareBuffer(DvrBuffer* buffer,
AHardwareBuffer** hardware_buffer);
// Retrieve the shared buffer layout version defined in dvr_shared_buffers.h.
int dvrBufferGlobalLayoutVersionGet();
__END_DECLS
#endif // ANDROID_DVR_BUFFER_H_
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