AMD ROCm Decode API

Data Structures | Functions | Variables

rocDecode: AMD ROCm Decode API

AMD The rocDecode is a toolkit to decode videos and images using a hardware-accelerated video decoder on AMD’s GPUs. More...

Data Structures
struct	RocdecDecodeCaps
struct	RocDecoderCreateInfo
struct	RocdecDecodeStatus
struct	RocdecReconfigureDecoderInfo
struct	RocdecAvcPicture
struct	RocdecHevcPicture
struct	RocdecJPEGPicParams
struct	RocdecMpeg2QMatrix
struct	RocdecMpeg2PicParams
struct	RocdecVc1PicParams
struct	RocdecAvcPicParams
struct	RocdecAvcSliceParams
struct	RocdecAvcIQMatrix
struct	RocdecHevcPicParams
struct	RocdecHevcSliceParams
struct	RocdecHevcIQMatrix
struct	RocdecVp9PicParams
struct	RocdecVp9SliceParams
struct	RocdecAv1PicParams
struct	RocdecAv1SliceParams
struct	_RocdecPicParams
struct	RocdecProcParams

Functions
rocDecStatus ROCDECAPI	rocDecCreateDecoder (rocDecDecoderHandle *decoder_handle, RocDecoderCreateInfo *decoder_create_info)
rocDecStatus ROCDECAPI	rocDecDestroyDecoder (rocDecDecoderHandle decoder_handle)
rocDecStatus ROCDECAPI	rocDecDecodeFrame (rocDecDecoderHandle decoder_handle, RocdecPicParams *pic_params)
rocDecStatus ROCDECAPI	rocDecGetDecodeStatus (rocDecDecoderHandle decoder_handle, int pic_idx, RocdecDecodeStatus *decode_status)
rocDecStatus ROCDECAPI	rocDecReconfigureDecoder (rocDecDecoderHandle decoder_handle, RocdecReconfigureDecoderInfo *reconfig_params)
const char *ROCDECAPI	rocDecGetErrorName (rocDecStatus rocdec_status)

Variables
int	_RocdecHevcPicture::poc
	picture order count. ! in HEVC, POCs for top and bottom fields of same picture should take different values.

Detailed Description

AMD The rocDecode is a toolkit to decode videos and images using a hardware-accelerated video decoder on AMD’s GPUs.

Function Documentation

◆ rocDecCreateDecoder()

rocDecStatus ROCDECAPI rocDecCreateDecoder	(	rocDecDecoderHandle *	decoder_handle,
		RocDecoderCreateInfo *	decoder_create_info
	)

Create the decoder object based on decoder_create_info. A handle to the created decoder is returned

◆ rocDecDecodeFrame()

rocDecStatus ROCDECAPI rocDecDecodeFrame	(	rocDecDecoderHandle	decoder_handle,
		RocdecPicParams *	pic_params
	)

Decodes a single picture Submits the frame for HW decoding

◆ rocDecDestroyDecoder()

rocDecStatus ROCDECAPI rocDecDestroyDecoder

(

rocDecDecoderHandle

decoder_handle

)

Destroy the decoder object

◆ rocDecGetDecodeStatus()

rocDecStatus ROCDECAPI rocDecGetDecodeStatus	(	rocDecDecoderHandle	decoder_handle,
		int	pic_idx,
		RocdecDecodeStatus *	decode_status
	)

Get the decode status for frame corresponding to nPicIdx. Please note that this API makes a non-blocking call and returns the status of the frame associated with nPicIdx at the time of the call, without waiting for the decoding to complete. The decode_status->decode_status can be either rocDecodeStatus_Success, indicating that the decoding has been completed, or rocDecodeStatus_InProgress, which means that the decoding is still in progress.

◆ rocDecGetErrorName()

const char *ROCDECAPI rocDecGetErrorName

(

rocDecStatus

rocdec_status

)

Return name of the specified error code in text form.

◆ rocDecReconfigureDecoder()

rocDecStatus ROCDECAPI rocDecReconfigureDecoder	(	rocDecDecoderHandle	decoder_handle,
		RocdecReconfigureDecoderInfo *	reconfig_params
	)

Used to reuse single decoder for multiple clips. Currently supports resolution change, resize params params, target area params change for same codec. Must be called during RocdecParserParams::pfn_sequence_callback