mirror of https://git.ffmpeg.org/ffmpeg.git
317 lines
12 KiB
C
317 lines
12 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) 2010-2016 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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* NvCuvid API provides Video Decoding interface to NVIDIA GPU devices.
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* \date 2015-2015
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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 "compat/cuda/dynlink_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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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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* \addtogroup VIDEO_PARSER Video Parser
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* @{
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*/
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/*!
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* \enum cudaVideoState
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* Video Source State
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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
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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;
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/*!
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* \struct CUVIDEOFORMAT
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* Video format
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*/
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typedef struct
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{
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cudaVideoCodec codec; /**< Compression format */
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/**
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* frame rate = numerator / denominator (for example: 30000/1001)
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*/
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struct {
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unsigned int numerator; /**< frame rate numerator (0 = unspecified or variable frame rate) */
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unsigned int denominator; /**< frame rate denominator (0 = unspecified or variable frame rate) */
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} frame_rate;
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unsigned char progressive_sequence; /**< 0=interlaced, 1=progressive */
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unsigned char bit_depth_luma_minus8; /**< high bit depth Luma */
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unsigned char bit_depth_chroma_minus8; /**< high bit depth Chroma */
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unsigned char reserved1; /**< Reserved for future use */
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unsigned int coded_width; /**< coded frame width */
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unsigned int coded_height; /**< coded frame height */
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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; /**< left position of display rect */
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int top; /**< top position of display rect */
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int right; /**< right position of display rect */
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int bottom; /**< bottom position of display rect */
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} display_area;
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cudaVideoChromaFormat chroma_format; /**< Chroma format */
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unsigned int bitrate; /**< video bitrate (bps, 0=unknown) */
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/**
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* 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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*/
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struct {
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unsigned char video_format : 3;
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unsigned char video_full_range_flag : 1;
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unsigned char reserved_zero_bits : 4;
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unsigned char color_primaries;
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unsigned char transfer_characteristics;
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unsigned char matrix_coefficients;
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} video_signal_description;
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unsigned int seqhdr_data_length; /**< Additional bytes following (CUVIDEOFORMATEX) */
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} CUVIDEOFORMAT;
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/*!
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* \struct CUVIDEOFORMATEX
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* Video format including raw sequence header information
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*/
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typedef struct
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{
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CUVIDEOFORMAT format;
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unsigned char raw_seqhdr_data[1024];
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} CUVIDEOFORMATEX;
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/*!
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* \struct CUAUDIOFORMAT
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* Audio Formats
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*/
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typedef struct
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{
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cudaAudioCodec codec; /**< Compression format */
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unsigned int channels; /**< number of audio channels */
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unsigned int samplespersec; /**< sampling frequency */
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unsigned int bitrate; /**< 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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*/
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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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} CUvideopacketflags;
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/*!
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* \struct CUVIDSOURCEDATAPACKET
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* Data Packet
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*/
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typedef struct _CUVIDSOURCEDATAPACKET
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{
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unsigned long flags; /**< Combination of CUVID_PKT_XXX flags */
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unsigned long payload_size; /**< number of bytes in the payload (may be zero if EOS flag is set) */
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const unsigned char *payload; /**< Pointer to packet payload data (may be NULL if EOS flag is set) */
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CUvideotimestamp timestamp; /**< Presentation timestamp (10MHz clock), only valid if 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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* \struct CUVIDSOURCEPARAMS
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* Source Params
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*/
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typedef struct _CUVIDSOURCEPARAMS
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{
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unsigned int ulClockRate; /**< Timestamp 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; /**< Parameter passed in to the data handlers */
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PFNVIDSOURCECALLBACK pfnVideoDataHandler; /**< Called to deliver audio packets */
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PFNVIDSOURCECALLBACK pfnAudioDataHandler; /**< Called to deliver video 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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* \enum CUvideosourceformat_flags
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* CUvideosourceformat_flags
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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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* \fn CUresult CUDAAPI cuvidCreateVideoSource(CUvideosource *pObj, const char *pszFileName, CUVIDSOURCEPARAMS *pParams)
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* Create Video Source
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*/
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typedef CUresult CUDAAPI tcuvidCreateVideoSource(CUvideosource *pObj, const char *pszFileName, CUVIDSOURCEPARAMS *pParams);
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/**
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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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typedef CUresult CUDAAPI tcuvidCreateVideoSourceW(CUvideosource *pObj, const wchar_t *pwszFileName, CUVIDSOURCEPARAMS *pParams);
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/**
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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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typedef CUresult CUDAAPI tcuvidDestroyVideoSource(CUvideosource obj);
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/**
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* \fn CUresult CUDAAPI cuvidSetVideoSourceState(CUvideosource obj, cudaVideoState state)
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* Set Video Source state
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*/
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typedef CUresult CUDAAPI tcuvidSetVideoSourceState(CUvideosource obj, cudaVideoState state);
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/**
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* \fn cudaVideoState CUDAAPI cuvidGetVideoSourceState(CUvideosource obj)
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* Get Video Source state
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*/
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typedef cudaVideoState CUDAAPI tcuvidGetVideoSourceState(CUvideosource obj);
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/**
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* \fn CUresult CUDAAPI cuvidGetSourceVideoFormat(CUvideosource obj, CUVIDEOFORMAT *pvidfmt, unsigned int flags)
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* Get Video Source Format
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*/
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typedef CUresult CUDAAPI tcuvidGetSourceVideoFormat(CUvideosource obj, CUVIDEOFORMAT *pvidfmt, unsigned int flags);
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/**
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* \fn CUresult CUDAAPI cuvidGetSourceAudioFormat(CUvideosource obj, CUAUDIOFORMAT *paudfmt, unsigned int flags)
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* Set Video Source state
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*/
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typedef CUresult CUDAAPI tcuvidGetSourceAudioFormat(CUvideosource obj, CUAUDIOFORMAT *paudfmt, unsigned int flags);
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#endif
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/**
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* \struct CUVIDPARSERDISPINFO
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*/
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typedef struct _CUVIDPARSERDISPINFO
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{
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int picture_index; /**< */
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int progressive_frame; /**< */
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int top_field_first; /**< */
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int repeat_first_field; /**< Number of additional fields (1=ivtc, 2=frame doubling, 4=frame tripling, -1=unpaired field) */
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CUvideotimestamp timestamp; /**< */
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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 a picture is ready to
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// be decoded and/or displayed.
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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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* \struct CUVIDPARSERPARAMS
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*/
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typedef struct _CUVIDPARSERPARAMS
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{
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cudaVideoCodec CodecType; /**< cudaVideoCodec_XXX */
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unsigned int ulMaxNumDecodeSurfaces; /**< Max # of decode surfaces (parser will cycle through these) */
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unsigned int ulClockRate; /**< Timestamp units in Hz (0=default=10000000Hz) */
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unsigned int ulErrorThreshold; /**< % Error threshold (0-100) for calling pfnDecodePicture (100=always call pfnDecodePicture even if picture bitstream is fully corrupted) */
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unsigned int ulMaxDisplayDelay; /**< Max display queue delay (improves pipelining of decode with display) - 0=no delay (recommended values: 2..4) */
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unsigned int uReserved1[5]; /**< Reserved for future use - set to 0 */
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void *pUserData; /**< User data for callbacks */
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PFNVIDSEQUENCECALLBACK pfnSequenceCallback; /**< Called before decoding frames and/or whenever there is a format change */
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PFNVIDDECODECALLBACK pfnDecodePicture; /**< Called when a picture is ready to be decoded (decode order) */
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PFNVIDDISPLAYCALLBACK pfnDisplayPicture; /**< 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; /**< [Optional] sequence header data from system layer */
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} CUVIDPARSERPARAMS;
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/**
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* \fn CUresult CUDAAPI cuvidCreateVideoParser(CUvideoparser *pObj, CUVIDPARSERPARAMS *pParams)
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*/
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typedef CUresult CUDAAPI tcuvidCreateVideoParser(CUvideoparser *pObj, CUVIDPARSERPARAMS *pParams);
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/**
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* \fn CUresult CUDAAPI cuvidParseVideoData(CUvideoparser obj, CUVIDSOURCEDATAPACKET *pPacket)
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*/
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typedef CUresult CUDAAPI tcuvidParseVideoData(CUvideoparser obj, CUVIDSOURCEDATAPACKET *pPacket);
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/**
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* \fn CUresult CUDAAPI cuvidDestroyVideoParser(CUvideoparser obj)
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*/
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typedef CUresult CUDAAPI tcuvidDestroyVideoParser(CUvideoparser obj);
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/** @} */ /* END VIDEO_PARSER */
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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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