1 #ifndef ANDROID_DVR_BUFFER_H_ 2 #define ANDROID_DVR_BUFFER_H_ 3 4 #include <stdbool.h> 5 #include <stdint.h> 6 #include <sys/cdefs.h> 7 #include <memory> 8 9 __BEGIN_DECLS 10 11 typedef struct DvrWriteBuffer DvrWriteBuffer; 12 typedef struct DvrReadBuffer DvrReadBuffer; 13 typedef struct DvrBuffer DvrBuffer; 14 typedef struct AHardwareBuffer AHardwareBuffer; 15 struct native_handle; 16 17 // Destroys the write buffer. 18 void dvrWriteBufferDestroy(DvrWriteBuffer* write_buffer); 19 20 // Returns 1 if the given write buffer object contains a buffer, 0 otherwise. 21 int dvrWriteBufferIsValid(DvrWriteBuffer* write_buffer); 22 23 // Returns the global BufferHub id of this buffer. 24 int dvrWriteBufferGetId(DvrWriteBuffer* write_buffer); 25 26 // Returns an AHardwareBuffer for the underlying buffer. 27 // Caller must call AHardwareBuffer_release on hardware_buffer. 28 int dvrWriteBufferGetAHardwareBuffer(DvrWriteBuffer* write_buffer, 29 AHardwareBuffer** hardware_buffer); 30 31 // Destroys the read buffer. 32 void dvrReadBufferDestroy(DvrReadBuffer* read_buffer); 33 34 // Returns 1 if the given write buffer object contains a buffer, 0 otherwise. 35 int dvrReadBufferIsValid(DvrReadBuffer* read_buffer); 36 37 // Returns the global BufferHub id of this buffer. 38 int dvrReadBufferGetId(DvrReadBuffer* read_buffer); 39 40 // Returns an AHardwareBuffer for the underlying buffer. 41 // Caller must call AHardwareBuffer_release on hardware_buffer. 42 int dvrReadBufferGetAHardwareBuffer(DvrReadBuffer* read_buffer, 43 AHardwareBuffer** hardware_buffer); 44 45 // Destroys the buffer. 46 void dvrBufferDestroy(DvrBuffer* buffer); 47 48 // Gets an AHardwareBuffer from the buffer. 49 // Caller must call AHardwareBuffer_release on hardware_buffer. 50 int dvrBufferGetAHardwareBuffer(DvrBuffer* buffer, 51 AHardwareBuffer** hardware_buffer); 52 53 // Retrieve the shared buffer layout version defined in dvr_shared_buffers.h. 54 int dvrBufferGlobalLayoutVersionGet(); 55 56 __END_DECLS 57 58 #endif // ANDROID_DVR_BUFFER_H_ 59
