NVIDIA CUDA VIDEO ENCODER - CUDA Toolkit Documentation

More documents

Recommendations

Info

ENCODER INTERFACES GetParamValue Description: Syntax: Parameter: Return Value: Remarks: Query the current value of the specified parameter type HRESULT GetParamValue(DWORD dwParamType, LPVOID pData) dwParamType [in] Parameter to query pData [out] This pointer points to memory to store the value(s) of the parameter S_OK: Successful E_NOTIMPL: The parameter is not supported E_UNEXPECTED: The encoding format is not initialized. E_POINTER: pData is NULL pointer If querying is successful, *pData contains the current value of the parameter. Caller should guarantee that pData points to enough memory to store the data structure of the parameter SetDefaultParam Description: Syntax: Parameter: Return Value: Remarks: Applies default settings of the encoding format HRESULT SetDefaultParam(void) - S_OK: Successful E_UNEXPECTED: The encoding format is not set yet Default values of parameters are mentioned in Encoder Parameters on page 25 GetSPSPPS Description: Syntax: Parameter: Return Value: Remarks: Fetches the buffer containing SPS and PPS HRESULT GetSPSPPS(unsigned char *pSPSPPSbfr, int nSizeSPSPPSbfr, int *pDatasize) pSPSPPSbfr [out] Pointer to the buffer for SPS and PPS. Memory for this buffer to be allocated by caller of this API nSizeSPSPPSbfr [in] Size in bytes of the buffer (pSPSPPSbfr) pDatasize [out] Actual size in bytes of the buffer (pSPSPPSbfr) S_OK: Successful E_UNEXPECTED: The encoder is not initialized E_POINTER: NULL buffer pointer Encoder should have been initialized prior to calling this API. NVIDIA CUDA VIDEO ENCODER SP04456-001_v03 | 14
ENCODER INTERFACES C-LIBRARY API The NVIDIA CUDA Video Encoder is also exposed as a C-library interface (API) to application. Following sections describe this API and different related structures in depth. Application programmer needs to be aware that the actual encoding APIs of this library have asynchronous operation to facilitate better utilization of CPU and GPU resources. The feedback mechanism to the application is through the callback functions that the application provides to the library at start of operation. See API Callback on page 24 section to find more details on callback mechanism. API Function Interface Table4. C-library API Functions Methods NvGetHWEncodeCaps NVCreateEncoder NVIsSupportedCodec NVIsSupportedCodecProfile NVSetCodec NVGetCodec NVIsSupportedParam NVSetParamValue NVGetParamValue NVSetDefaultParam NVCreateHWEncoder NVGetSPSPPS NVEncodeFrame NVRegisterCB NVDestroyEncoder Description Query if the GPU supports the NVIDIA CUDA Video encoder Creates the NVIDIA CUDA Video Encoder library object for encoding Query if the codec format is supported Query if the codec profile is supported Set the type of compression codec Get the type of compression codec Query if the parameter type is supported Set the value of the specified parameter type Get the value of the specified parameter type Applies default settings of the encoding format Allocate hardware resources for the encoder Fetches the buffer containing SPS and PPS Encode one video picture Register user defined callback functions to the encoder Releases the NVIDIA encoder object NVIDIA CUDA VIDEO ENCODER SP04456-001_v03 | 15
Page 1 and 2: NVIDIA CUDA VIDEO ENCODER SP04456-0
Page 3 and 4: TABLE OF CONTENTS Overview ........
Page 5 and 6: OVERVIEW NVIDIA® CUDA Video Encode
Page 7 and 8: ENCODER FEATURE CHECK LIST Table 1
Page 9 and 10: ENCODER INTERFACES NVIDIA CUDA Vide
Page 11 and 12: ENCODER INTERFACES INVVESetting Int
Page 13: ENCODER INTERFACES GetCodecType Des
Page 17 and 18: ENCODER INTERFACES NVIsSupportedCod
Page 19 and 20: ENCODER INTERFACES NVSetParamValue
Page 21 and 22: ENCODER INTERFACES NVEncodeFrame De
Page 23 and 24: ENCODER INTERFACES The callbacks w
Page 25 and 26: ENCODER PARAMETERS The encoder para
Page 27 and 28: Encoder Parameters Parameter Descri
Page 29 and 30: Encoder Parameters ENCODER QUERY PA
Page 31 and 32: APPENDIX A. DIRECTSHOW FILTER GUIDS
Page 33 and 34: Encoder Parameters }; NVVE_ASPECT_R
Page 35 and 36: Encoder Parameters enum NVVE_DI_MOD
Page 37 and 38: Encoder Parameters // DirectShow Fi
Page 39: Notice ALL NVIDIA DESIGN SPECIFICAT

NVIDIA CUDA VIDEO ENCODER - CUDA Toolkit Documentation

Create successful ePaper yourself

Delete template?

Save as template?