FFmpeg  4.3
Data Structures | Macros | Functions | Variables
cuviddec.c File Reference
#include "compat/cuda/dynlink_loader.h"
#include "libavutil/buffer.h"
#include "libavutil/mathematics.h"
#include "libavutil/hwcontext.h"
#include "libavutil/hwcontext_cuda_internal.h"
#include "libavutil/cuda_check.h"
#include "libavutil/fifo.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "decode.h"
#include "hwconfig.h"
#include "nvdec.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  CuvidContext
 
struct  CuvidParsedFrame
 

Macros

#define cudaVideoSurfaceFormat_YUV444   2
 
#define cudaVideoSurfaceFormat_YUV444_16Bit   3
 
#define CHECK_CU(x)   FF_CUDA_CHECK_DL(avctx, ctx->cudl, x)
 
#define OFFSET(x)   offsetof(CuvidContext, x)
 
#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
 
#define DEFINE_CUVID_CODEC(x, X, bsf_name)
 

Functions

static int CUDAAPI cuvid_handle_video_sequence (void *opaque, CUVIDEOFORMAT *format)
 
static int CUDAAPI cuvid_handle_picture_decode (void *opaque, CUVIDPICPARAMS *picparams)
 
static int CUDAAPI cuvid_handle_picture_display (void *opaque, CUVIDPARSERDISPINFO *dispinfo)
 
static int cuvid_is_buffer_full (AVCodecContext *avctx)
 
static int cuvid_decode_packet (AVCodecContext *avctx, const AVPacket *avpkt)
 
static int cuvid_output_frame (AVCodecContext *avctx, AVFrame *frame)
 
static int cuvid_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 
static av_cold int cuvid_decode_end (AVCodecContext *avctx)
 
static int cuvid_test_capabilities (AVCodecContext *avctx, const CUVIDPARSERPARAMS *cuparseinfo, int probed_width, int probed_height, int bit_depth)
 
static av_cold int cuvid_decode_init (AVCodecContext *avctx)
 
static void cuvid_flush (AVCodecContext *avctx)
 

Variables

static const AVOption options []
 
static const AVCodecHWConfigInternalcuvid_hw_configs []
 

Macro Definition Documentation

◆ cudaVideoSurfaceFormat_YUV444

#define cudaVideoSurfaceFormat_YUV444   2

Definition at line 41 of file cuviddec.c.

◆ cudaVideoSurfaceFormat_YUV444_16Bit

#define cudaVideoSurfaceFormat_YUV444_16Bit   3

Definition at line 42 of file cuviddec.c.

◆ CHECK_CU

#define CHECK_CU (   x)    FF_CUDA_CHECK_DL(avctx, ctx->cudl, x)

Definition at line 104 of file cuviddec.c.

◆ OFFSET

#define OFFSET (   x)    offsetof(CuvidContext, x)

Definition at line 1070 of file cuviddec.c.

◆ VD

Definition at line 1071 of file cuviddec.c.

◆ DEFINE_CUVID_CODEC

#define DEFINE_CUVID_CODEC (   x,
  X,
  bsf_name 
)
Value:
static const AVClass x##_cuvid_class = { \
.class_name = #x "_cuvid", \
.item_name = av_default_item_name, \
.option = options, \
.version = LIBAVUTIL_VERSION_INT, \
}; \
AVCodec ff_##x##_cuvid_decoder = { \
.name = #x "_cuvid", \
.long_name = NULL_IF_CONFIG_SMALL("Nvidia CUVID " #X " decoder"), \
.type = AVMEDIA_TYPE_VIDEO, \
.id = AV_CODEC_ID_##X, \
.priv_data_size = sizeof(CuvidContext), \
.priv_class = &x##_cuvid_class, \
.close = cuvid_decode_end, \
.bsfs = bsf_name, \
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_CUDA, \
AV_PIX_FMT_NV12, \
AV_PIX_FMT_P010, \
AV_PIX_FMT_P016, \
AV_PIX_FMT_NONE }, \
.hw_configs = cuvid_hw_configs, \
.wrapper_name = "cuvid", \
};

Definition at line 1098 of file cuviddec.c.

Function Documentation

◆ cuvid_handle_video_sequence()

static int CUDAAPI cuvid_handle_video_sequence ( void opaque,
CUVIDEOFORMAT *  format 
)
static

Definition at line 106 of file cuviddec.c.

Referenced by cuvid_decode_init().

◆ cuvid_handle_picture_decode()

static int CUDAAPI cuvid_handle_picture_decode ( void opaque,
CUVIDPICPARAMS *  picparams 
)
static

Definition at line 328 of file cuviddec.c.

Referenced by cuvid_decode_init().

◆ cuvid_handle_picture_display()

static int CUDAAPI cuvid_handle_picture_display ( void opaque,
CUVIDPARSERDISPINFO *  dispinfo 
)
static

Definition at line 344 of file cuviddec.c.

Referenced by cuvid_decode_init().

◆ cuvid_is_buffer_full()

static int cuvid_is_buffer_full ( AVCodecContext avctx)
static

Definition at line 370 of file cuviddec.c.

Referenced by cuvid_decode_packet(), and cuvid_output_frame().

◆ cuvid_decode_packet()

static int cuvid_decode_packet ( AVCodecContext avctx,
const AVPacket avpkt 
)
static

Definition at line 381 of file cuviddec.c.

Referenced by cuvid_decode_frame(), and cuvid_output_frame().

◆ cuvid_output_frame()

static int cuvid_output_frame ( AVCodecContext avctx,
AVFrame frame 
)
static

Definition at line 446 of file cuviddec.c.

Referenced by cuvid_decode_frame().

◆ cuvid_decode_frame()

static int cuvid_decode_frame ( AVCodecContext avctx,
void data,
int got_frame,
AVPacket avpkt 
)
static

Definition at line 638 of file cuviddec.c.

◆ cuvid_decode_end()

static av_cold int cuvid_decode_end ( AVCodecContext avctx)
static

Definition at line 669 of file cuviddec.c.

Referenced by cuvid_decode_init().

◆ cuvid_test_capabilities()

static int cuvid_test_capabilities ( AVCodecContext avctx,
const CUVIDPARSERPARAMS *  cuparseinfo,
int  probed_width,
int  probed_height,
int  bit_depth 
)
static

Definition at line 693 of file cuviddec.c.

Referenced by cuvid_decode_init().

◆ cuvid_decode_init()

static av_cold int cuvid_decode_init ( AVCodecContext avctx)
static

Definition at line 787 of file cuviddec.c.

◆ cuvid_flush()

static void cuvid_flush ( AVCodecContext avctx)
static

Definition at line 1014 of file cuviddec.c.

Variable Documentation

◆ options

const AVOption options[]
static
Initial value:
= {
{ "deint", "Set deinterlacing mode", OFFSET(deint_mode), AV_OPT_TYPE_INT, { .i64 = cudaVideoDeinterlaceMode_Weave }, cudaVideoDeinterlaceMode_Weave, cudaVideoDeinterlaceMode_Adaptive, VD, "deint" },
{ "weave", "Weave deinterlacing (do nothing)", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Weave }, 0, 0, VD, "deint" },
{ "bob", "Bob deinterlacing", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Bob }, 0, 0, VD, "deint" },
{ "adaptive", "Adaptive deinterlacing", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Adaptive }, 0, 0, VD, "deint" },
{ "gpu", "GPU to be used for decoding", OFFSET(cu_gpu), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
{ "surfaces", "Maximum surfaces to be used for decoding", OFFSET(nb_surfaces), AV_OPT_TYPE_INT, { .i64 = 25 }, 0, INT_MAX, VD },
{ "drop_second_field", "Drop second field when deinterlacing", OFFSET(drop_second_field), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
{ "crop", "Crop (top)x(bottom)x(left)x(right)", OFFSET(crop_expr), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
{ "resize", "Resize (width)x(height)", OFFSET(resize_expr), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
{ NULL }
}

Definition at line 1072 of file cuviddec.c.

◆ cuvid_hw_configs

const AVCodecHWConfigInternal* cuvid_hw_configs[]
static
Initial value:
= {
.public = {
.pix_fmt = AV_PIX_FMT_CUDA,
.device_type = AV_HWDEVICE_TYPE_CUDA
},
.hwaccel = NULL,
},
}

Definition at line 1085 of file cuviddec.c.

AV_PIX_FMT_CUDA
@ AV_PIX_FMT_CUDA
HW acceleration through CUDA.
Definition: pixfmt.h:235
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
cuvid_decode_frame
static int cuvid_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: cuviddec.c:638
AV_CODEC_CAP_HARDWARE
#define AV_CODEC_CAP_HARDWARE
Codec is backed by a hardware implementation.
Definition: codec.h:150
cuvid_output_frame
static int cuvid_output_frame(AVCodecContext *avctx, AVFrame *frame)
Definition: cuviddec.c:446
options
static const AVOption options[]
Definition: cuviddec.c:1072
AV_HWDEVICE_TYPE_CUDA
@ AV_HWDEVICE_TYPE_CUDA
Definition: hwcontext.h:30
x
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo x
Definition: fate.txt:150
X
@ X
Definition: vf_addroi.c:26
CuvidContext
Definition: cuviddec.c:45
decode
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
NULL
#define NULL
Definition: coverity.c:32
flush
static void flush(AVCodecContext *avctx)
Definition: aacdec_template.c:500
VD
#define VD
Definition: cuviddec.c:1071
receive_frame
static CopyRet receive_frame(AVCodecContext *avctx, AVFrame *frame, int *got_frame)
Definition: crystalhd.c:560
AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX
@ AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX
The codec supports this format via the hw_device_ctx interface.
Definition: codec.h:393
cuvid_hw_configs
static const AVCodecHWConfigInternal * cuvid_hw_configs[]
Definition: cuviddec.c:1085
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
cuvid_decode_init
static av_cold int cuvid_decode_init(AVCodecContext *avctx)
Definition: cuviddec.c:787
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:186
cuvid_decode_end
static av_cold int cuvid_decode_end(AVCodecContext *avctx)
Definition: cuviddec.c:669
AVCodecHWConfigInternal
Definition: hwconfig.h:29
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:223
AV_CODEC_HW_CONFIG_METHOD_INTERNAL
@ AV_CODEC_HW_CONFIG_METHOD_INTERNAL
The codec supports this format by some internal method.
Definition: codec.h:413
AV_CODEC_CAP_DELAY
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: codec.h:75
OFFSET
#define OFFSET(x)
Definition: cuviddec.c:1070
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
cuvid_flush
static void cuvid_flush(AVCodecContext *avctx)
Definition: cuviddec.c:1014
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:240
AV_CODEC_CAP_AVOID_PROBING
#define AV_CODEC_CAP_AVOID_PROBING
Decoder is not a preferred choice for probing.
Definition: codec.h:132
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:227
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:232