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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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392 lines
24 KiB
C
392 lines
24 KiB
C
/*
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* This copyright notice applies to this header file only:
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*
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* Copyright (c) 2010-2019 NVIDIA Corporation
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the software, and to permit persons to whom the
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* software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/********************************************************************************************************************/
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//! \file nvcuvid.h
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//! NVDECODE API provides video decoding interface to NVIDIA GPU devices.
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//! \date 2015-2019
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//! This file contains the interface constants, structure definitions and function prototypes.
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/********************************************************************************************************************/
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#if !defined(__NVCUVID_H__)
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#define __NVCUVID_H__
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#include "cuviddec.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif /* __cplusplus */
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/***********************************************/
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//!
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//! High-level helper APIs for video sources
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//!
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/***********************************************/
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typedef void *CUvideosource;
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typedef void *CUvideoparser;
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typedef long long CUvideotimestamp;
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/************************************************************************/
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//! \enum cudaVideoState
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//! Video source state enums
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//! Used in cuvidSetVideoSourceState and cuvidGetVideoSourceState APIs
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/************************************************************************/
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typedef enum {
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cudaVideoState_Error = -1, /**< Error state (invalid source) */
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cudaVideoState_Stopped = 0, /**< Source is stopped (or reached end-of-stream) */
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cudaVideoState_Started = 1 /**< Source is running and delivering data */
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} cudaVideoState;
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/************************************************************************/
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//! \enum cudaAudioCodec
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//! Audio compression enums
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//! Used in CUAUDIOFORMAT structure
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/************************************************************************/
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typedef enum {
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cudaAudioCodec_MPEG1=0, /**< MPEG-1 Audio */
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cudaAudioCodec_MPEG2, /**< MPEG-2 Audio */
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cudaAudioCodec_MP3, /**< MPEG-1 Layer III Audio */
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cudaAudioCodec_AC3, /**< Dolby Digital (AC3) Audio */
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cudaAudioCodec_LPCM, /**< PCM Audio */
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cudaAudioCodec_AAC, /**< AAC Audio */
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} cudaAudioCodec;
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/************************************************************************************************/
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//! \ingroup STRUCTS
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//! \struct CUVIDEOFORMAT
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//! Video format
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//! Used in cuvidGetSourceVideoFormat API
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/************************************************************************************************/
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typedef struct
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{
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cudaVideoCodec codec; /**< OUT: Compression format */
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/**
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* OUT: frame rate = numerator / denominator (for example: 30000/1001)
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*/
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struct {
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/**< OUT: frame rate numerator (0 = unspecified or variable frame rate) */
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unsigned int numerator;
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/**< OUT: frame rate denominator (0 = unspecified or variable frame rate) */
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unsigned int denominator;
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} frame_rate;
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unsigned char progressive_sequence; /**< OUT: 0=interlaced, 1=progressive */
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unsigned char bit_depth_luma_minus8; /**< OUT: high bit depth luma. E.g, 2 for 10-bitdepth, 4 for 12-bitdepth */
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unsigned char bit_depth_chroma_minus8; /**< OUT: high bit depth chroma. E.g, 2 for 10-bitdepth, 4 for 12-bitdepth */
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unsigned char min_num_decode_surfaces; /**< OUT: Minimum number of decode surfaces to be allocated for correct
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decoding. The client can send this value in ulNumDecodeSurfaces
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(in CUVIDDECODECREATEINFO structure).
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This guarantees correct functionality and optimal video memory
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usage but not necessarily the best performance, which depends on
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the design of the overall application. The optimal number of
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decode surfaces (in terms of performance and memory utilization)
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should be decided by experimentation for each application, but it
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cannot go below min_num_decode_surfaces.
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If this value is used for ulNumDecodeSurfaces then it must be
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returned to parser during sequence callback. */
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unsigned int coded_width; /**< OUT: coded frame width in pixels */
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unsigned int coded_height; /**< OUT: coded frame height in pixels */
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/**
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* area of the frame that should be displayed
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* typical example:
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* coded_width = 1920, coded_height = 1088
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* display_area = { 0,0,1920,1080 }
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*/
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struct {
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int left; /**< OUT: left position of display rect */
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int top; /**< OUT: top position of display rect */
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int right; /**< OUT: right position of display rect */
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int bottom; /**< OUT: bottom position of display rect */
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} display_area;
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cudaVideoChromaFormat chroma_format; /**< OUT: Chroma format */
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unsigned int bitrate; /**< OUT: video bitrate (bps, 0=unknown) */
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/**
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* OUT: Display Aspect Ratio = x:y (4:3, 16:9, etc)
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*/
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struct {
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int x;
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int y;
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} display_aspect_ratio;
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/**
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* Video Signal Description
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* Refer section E.2.1 (VUI parameters semantics) of H264 spec file
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*/
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struct {
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unsigned char video_format : 3; /**< OUT: 0-Component, 1-PAL, 2-NTSC, 3-SECAM, 4-MAC, 5-Unspecified */
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unsigned char video_full_range_flag : 1; /**< OUT: indicates the black level and luma and chroma range */
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unsigned char reserved_zero_bits : 4; /**< Reserved bits */
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unsigned char color_primaries; /**< OUT: chromaticity coordinates of source primaries */
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unsigned char transfer_characteristics; /**< OUT: opto-electronic transfer characteristic of the source picture */
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unsigned char matrix_coefficients; /**< OUT: used in deriving luma and chroma signals from RGB primaries */
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} video_signal_description;
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unsigned int seqhdr_data_length; /**< OUT: Additional bytes following (CUVIDEOFORMATEX) */
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} CUVIDEOFORMAT;
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/****************************************************************/
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//! \ingroup STRUCTS
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//! \struct CUVIDEOFORMATEX
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//! Video format including raw sequence header information
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//! Used in cuvidGetSourceVideoFormat API
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/****************************************************************/
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typedef struct
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{
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CUVIDEOFORMAT format; /**< OUT: CUVIDEOFORMAT structure */
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unsigned char raw_seqhdr_data[1024]; /**< OUT: Sequence header data */
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} CUVIDEOFORMATEX;
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/****************************************************************/
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//! \ingroup STRUCTS
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//! \struct CUAUDIOFORMAT
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//! Audio formats
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//! Used in cuvidGetSourceAudioFormat API
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/****************************************************************/
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typedef struct
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{
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cudaAudioCodec codec; /**< OUT: Compression format */
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unsigned int channels; /**< OUT: number of audio channels */
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unsigned int samplespersec; /**< OUT: sampling frequency */
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unsigned int bitrate; /**< OUT: For uncompressed, can also be used to determine bits per sample */
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unsigned int reserved1; /**< Reserved for future use */
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unsigned int reserved2; /**< Reserved for future use */
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} CUAUDIOFORMAT;
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/***************************************************************/
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//! \enum CUvideopacketflags
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//! Data packet flags
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//! Used in CUVIDSOURCEDATAPACKET structure
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/***************************************************************/
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typedef enum {
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CUVID_PKT_ENDOFSTREAM = 0x01, /**< Set when this is the last packet for this stream */
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CUVID_PKT_TIMESTAMP = 0x02, /**< Timestamp is valid */
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CUVID_PKT_DISCONTINUITY = 0x04, /**< Set when a discontinuity has to be signalled */
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CUVID_PKT_ENDOFPICTURE = 0x08, /**< Set when the packet contains exactly one frame or one field */
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CUVID_PKT_NOTIFY_EOS = 0x10, /**< If this flag is set along with CUVID_PKT_ENDOFSTREAM, an additional (dummy)
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display callback will be invoked with null value of CUVIDPARSERDISPINFO which
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should be interpreted as end of the stream. */
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} CUvideopacketflags;
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/*****************************************************************************/
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//! \ingroup STRUCTS
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//! \struct CUVIDSOURCEDATAPACKET
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//! Data Packet
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//! Used in cuvidParseVideoData API
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//! IN for cuvidParseVideoData
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/*****************************************************************************/
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typedef struct _CUVIDSOURCEDATAPACKET
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{
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unsigned long flags; /**< IN: Combination of CUVID_PKT_XXX flags */
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unsigned long payload_size; /**< IN: number of bytes in the payload (may be zero if EOS flag is set) */
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const unsigned char *payload; /**< IN: Pointer to packet payload data (may be NULL if EOS flag is set) */
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CUvideotimestamp timestamp; /**< IN: Presentation time stamp (10MHz clock), only valid if
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CUVID_PKT_TIMESTAMP flag is set */
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} CUVIDSOURCEDATAPACKET;
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// Callback for packet delivery
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typedef int (CUDAAPI *PFNVIDSOURCECALLBACK)(void *, CUVIDSOURCEDATAPACKET *);
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/**************************************************************************************************************************/
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//! \ingroup STRUCTS
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//! \struct CUVIDSOURCEPARAMS
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//! Describes parameters needed in cuvidCreateVideoSource API
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//! NVDECODE API is intended for HW accelerated video decoding so CUvideosource doesn't have audio demuxer for all supported
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//! containers. It's recommended to clients to use their own or third party demuxer if audio support is needed.
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/**************************************************************************************************************************/
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typedef struct _CUVIDSOURCEPARAMS
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{
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unsigned int ulClockRate; /**< IN: Time stamp units in Hz (0=default=10000000Hz) */
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unsigned int uReserved1[7]; /**< Reserved for future use - set to zero */
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void *pUserData; /**< IN: User private data passed in to the data handlers */
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PFNVIDSOURCECALLBACK pfnVideoDataHandler; /**< IN: Called to deliver video packets */
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PFNVIDSOURCECALLBACK pfnAudioDataHandler; /**< IN: Called to deliver audio packets. */
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void *pvReserved2[8]; /**< Reserved for future use - set to NULL */
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} CUVIDSOURCEPARAMS;
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/**********************************************/
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//! \ingroup ENUMS
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//! \enum CUvideosourceformat_flags
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//! CUvideosourceformat_flags
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//! Used in cuvidGetSourceVideoFormat API
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/**********************************************/
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typedef enum {
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CUVID_FMT_EXTFORMATINFO = 0x100 /**< Return extended format structure (CUVIDEOFORMATEX) */
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} CUvideosourceformat_flags;
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#if !defined(__APPLE__)
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/***************************************************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidCreateVideoSource(CUvideosource *pObj, const char *pszFileName, CUVIDSOURCEPARAMS *pParams)
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//! Create CUvideosource object. CUvideosource spawns demultiplexer thread that provides two callbacks:
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//! pfnVideoDataHandler() and pfnAudioDataHandler()
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//! NVDECODE API is intended for HW accelerated video decoding so CUvideosource doesn't have audio demuxer for all supported
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//! containers. It's recommended to clients to use their own or third party demuxer if audio support is needed.
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/***************************************************************************************************************************/
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CUresult CUDAAPI cuvidCreateVideoSource(CUvideosource *pObj, const char *pszFileName, CUVIDSOURCEPARAMS *pParams);
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/***************************************************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidCreateVideoSourceW(CUvideosource *pObj, const wchar_t *pwszFileName, CUVIDSOURCEPARAMS *pParams)
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//! Create video source
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/***************************************************************************************************************************/
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CUresult CUDAAPI cuvidCreateVideoSourceW(CUvideosource *pObj, const wchar_t *pwszFileName, CUVIDSOURCEPARAMS *pParams);
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/********************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidDestroyVideoSource(CUvideosource obj)
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//! Destroy video source
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/********************************************************************/
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CUresult CUDAAPI cuvidDestroyVideoSource(CUvideosource obj);
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/******************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidSetVideoSourceState(CUvideosource obj, cudaVideoState state)
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//! Set video source state to:
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//! cudaVideoState_Started - to signal the source to run and deliver data
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//! cudaVideoState_Stopped - to stop the source from delivering the data
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//! cudaVideoState_Error - invalid source
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/******************************************************************************************/
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CUresult CUDAAPI cuvidSetVideoSourceState(CUvideosource obj, cudaVideoState state);
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/******************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn cudaVideoState CUDAAPI cuvidGetVideoSourceState(CUvideosource obj)
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//! Get video source state
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//! Returns:
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//! cudaVideoState_Started - if Source is running and delivering data
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//! cudaVideoState_Stopped - if Source is stopped or reached end-of-stream
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//! cudaVideoState_Error - if Source is in error state
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/******************************************************************************************/
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cudaVideoState CUDAAPI cuvidGetVideoSourceState(CUvideosource obj);
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/******************************************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidGetSourceVideoFormat(CUvideosource obj, CUVIDEOFORMAT *pvidfmt, unsigned int flags)
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//! Gets video source format in pvidfmt, flags is set to combination of CUvideosourceformat_flags as per requirement
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/******************************************************************************************************************/
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CUresult CUDAAPI cuvidGetSourceVideoFormat(CUvideosource obj, CUVIDEOFORMAT *pvidfmt, unsigned int flags);
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/**************************************************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidGetSourceAudioFormat(CUvideosource obj, CUAUDIOFORMAT *paudfmt, unsigned int flags)
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//! Get audio source format
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//! NVDECODE API is intended for HW accelerated video decoding so CUvideosource doesn't have audio demuxer for all supported
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//! containers. It's recommended to clients to use their own or third party demuxer if audio support is needed.
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/**************************************************************************************************************************/
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CUresult CUDAAPI cuvidGetSourceAudioFormat(CUvideosource obj, CUAUDIOFORMAT *paudfmt, unsigned int flags);
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#endif
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/**********************************************************************************/
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//! \ingroup STRUCTS
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//! \struct CUVIDPARSERDISPINFO
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//! Used in cuvidParseVideoData API with PFNVIDDISPLAYCALLBACK pfnDisplayPicture
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/**********************************************************************************/
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typedef struct _CUVIDPARSERDISPINFO
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{
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int picture_index; /**< OUT: Index of the current picture */
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int progressive_frame; /**< OUT: 1 if progressive frame; 0 otherwise */
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int top_field_first; /**< OUT: 1 if top field is displayed first; 0 otherwise */
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int repeat_first_field; /**< OUT: Number of additional fields (1=ivtc, 2=frame doubling, 4=frame tripling,
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-1=unpaired field) */
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CUvideotimestamp timestamp; /**< OUT: Presentation time stamp */
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} CUVIDPARSERDISPINFO;
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/***********************************************************************************************************************/
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//! Parser callbacks
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//! The parser will call these synchronously from within cuvidParseVideoData(), whenever there is sequence change or a picture
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//! is ready to be decoded and/or displayed. First argument in functions is "void *pUserData" member of structure CUVIDSOURCEPARAMS
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//! Return values from these callbacks are interpreted as below. If the callbacks return failure, it will be propagated by
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//! cuvidParseVideoData() to the application.
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//! PFNVIDSEQUENCECALLBACK : 0: fail, 1: succeeded, > 1: override dpb size of parser (set by CUVIDPARSERPARAMS::ulMaxNumDecodeSurfaces
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//! while creating parser)
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//! PFNVIDDECODECALLBACK : 0: fail, >=1: succeeded
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//! PFNVIDDISPLAYCALLBACK : 0: fail, >=1: succeeded
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/***********************************************************************************************************************/
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typedef int (CUDAAPI *PFNVIDSEQUENCECALLBACK)(void *, CUVIDEOFORMAT *);
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typedef int (CUDAAPI *PFNVIDDECODECALLBACK)(void *, CUVIDPICPARAMS *);
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typedef int (CUDAAPI *PFNVIDDISPLAYCALLBACK)(void *, CUVIDPARSERDISPINFO *);
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/**************************************/
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//! \ingroup STRUCTS
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//! \struct CUVIDPARSERPARAMS
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//! Used in cuvidCreateVideoParser API
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/**************************************/
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typedef struct _CUVIDPARSERPARAMS
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{
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cudaVideoCodec CodecType; /**< IN: cudaVideoCodec_XXX */
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unsigned int ulMaxNumDecodeSurfaces; /**< IN: Max # of decode surfaces (parser will cycle through these) */
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unsigned int ulClockRate; /**< IN: Timestamp units in Hz (0=default=10000000Hz) */
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unsigned int ulErrorThreshold; /**< IN: % Error threshold (0-100) for calling pfnDecodePicture (100=always
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IN: call pfnDecodePicture even if picture bitstream is fully corrupted) */
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unsigned int ulMaxDisplayDelay; /**< IN: Max display queue delay (improves pipelining of decode with display)
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0=no delay (recommended values: 2..4) */
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unsigned int uReserved1[5]; /**< IN: Reserved for future use - set to 0 */
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void *pUserData; /**< IN: User data for callbacks */
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PFNVIDSEQUENCECALLBACK pfnSequenceCallback; /**< IN: Called before decoding frames and/or whenever there is a fmt change */
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PFNVIDDECODECALLBACK pfnDecodePicture; /**< IN: Called when a picture is ready to be decoded (decode order) */
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PFNVIDDISPLAYCALLBACK pfnDisplayPicture; /**< IN: Called whenever a picture is ready to be displayed (display order) */
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void *pvReserved2[7]; /**< Reserved for future use - set to NULL */
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CUVIDEOFORMATEX *pExtVideoInfo; /**< IN: [Optional] sequence header data from system layer */
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} CUVIDPARSERPARAMS;
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/************************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidCreateVideoParser(CUvideoparser *pObj, CUVIDPARSERPARAMS *pParams)
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//! Create video parser object and initialize
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/************************************************************************************************/
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CUresult CUDAAPI cuvidCreateVideoParser(CUvideoparser *pObj, CUVIDPARSERPARAMS *pParams);
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/************************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidParseVideoData(CUvideoparser obj, CUVIDSOURCEDATAPACKET *pPacket)
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//! Parse the video data from source data packet in pPacket
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//! Extracts parameter sets like SPS, PPS, bitstream etc. from pPacket and
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//! calls back pfnDecodePicture with CUVIDPICPARAMS data for kicking of HW decoding
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//! calls back pfnSequenceCallback with CUVIDEOFORMAT data for initial sequence header or when
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//! the decoder encounters a video format change
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//! calls back pfnDisplayPicture with CUVIDPARSERDISPINFO data to display a video frame
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/************************************************************************************************/
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CUresult CUDAAPI cuvidParseVideoData(CUvideoparser obj, CUVIDSOURCEDATAPACKET *pPacket);
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/************************************************************************************************/
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//! \ingroup FUNCTS
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//! \fn CUresult CUDAAPI cuvidDestroyVideoParser(CUvideoparser obj)
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//! Destroy the video parser
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/************************************************************************************************/
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CUresult CUDAAPI cuvidDestroyVideoParser(CUvideoparser obj);
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/**********************************************************************************************/
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#if defined(__cplusplus)
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}
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#endif /* __cplusplus */
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#endif // __NVCUVID_H__
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