hwcontext_opencl.c File Reference

#include <string.h>
#include "config.h"
#include "avassert.h"
#include "avstring.h"
#include "common.h"
#include "hwcontext.h"
#include "hwcontext_internal.h"
#include "hwcontext_opencl.h"
#include "mem.h"
#include "pixdesc.h"

Go to the source code of this file.

Data Structures
struct	OpenCLDeviceContext
struct	OpenCLFramesContext
struct	OpenCLDeviceSelector
struct	OpenCLMapping

Macros
#define	CL_USE_DEPRECATED_OPENCL_1_2_APIS
#define	CL_FUNC(name, desc)
#define	CHANNEL_ORDER(order, type)   case order: image_format->image_channel_order = type; break;

Functions
static void CL_CALLBACK	opencl_error_callback (const char *errinfo, const void *private_info, size_t cb, void *user_data)
static void	opencl_device_free (AVHWDeviceContext *hwdev)
static char *	opencl_get_platform_string (cl_platform_id platform_id, cl_platform_info key)
static char *	opencl_get_device_string (cl_device_id device_id, cl_device_info key)
static int	opencl_check_platform_extension (cl_platform_id platform_id, const char *name)
static int	opencl_check_device_extension (cl_device_id device_id, const char *name)
static av_unused int	opencl_check_extension (AVHWDeviceContext *hwdev, const char *name)
static int	opencl_enumerate_platforms (AVHWDeviceContext *hwdev, cl_uint *nb_platforms, cl_platform_id **platforms, void *context)
static int	opencl_filter_platform (AVHWDeviceContext *hwdev, cl_platform_id platform_id, const char *platform_name, void *context)
static int	opencl_enumerate_devices (AVHWDeviceContext *hwdev, cl_platform_id platform_id, const char *platform_name, cl_uint *nb_devices, cl_device_id **devices, void *context)
static int	opencl_filter_device (AVHWDeviceContext *hwdev, cl_device_id device_id, const char *device_name, void *context)
static int	opencl_device_create_internal (AVHWDeviceContext *hwdev, const OpenCLDeviceSelector *selector, cl_context_properties *props)
static int	opencl_device_create (AVHWDeviceContext *hwdev, const char *device, AVDictionary *opts, int flags)
static int	opencl_device_init (AVHWDeviceContext *hwdev)
static void	opencl_device_uninit (AVHWDeviceContext *hwdev)
static int	opencl_device_derive (AVHWDeviceContext *hwdev, AVHWDeviceContext *src_ctx, AVDictionary *opts, int flags)
static int	opencl_get_plane_format (enum AVPixelFormat pixfmt, int plane, int width, int height, cl_image_format *image_format, cl_image_desc *image_desc)
static int	opencl_frames_get_constraints (AVHWDeviceContext *hwdev, const void *hwconfig, AVHWFramesConstraints *constraints)
static void	opencl_pool_free (void *opaque, uint8_t *data)
static AVBufferRef *	opencl_pool_alloc (void *opaque, size_t size)
static int	opencl_frames_init_command_queue (AVHWFramesContext *hwfc)
static int	opencl_frames_init (AVHWFramesContext *hwfc)
static void	opencl_frames_uninit (AVHWFramesContext *hwfc)
static int	opencl_get_buffer (AVHWFramesContext *hwfc, AVFrame *frame)
static int	opencl_transfer_get_formats (AVHWFramesContext *hwfc, enum AVHWFrameTransferDirection dir, enum AVPixelFormat **formats)
static int	opencl_wait_events (AVHWFramesContext *hwfc, cl_event *events, int nb_events)
static int	opencl_transfer_data_from (AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src)
static int	opencl_transfer_data_to (AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src)
static void	opencl_unmap_frame (AVHWFramesContext *hwfc, HWMapDescriptor *hwmap)
static int	opencl_map_frame (AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src, int flags)
static cl_mem_flags	opencl_mem_flags_for_mapping (int map_flags)
static int	opencl_map_from (AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src, int flags)
static int	opencl_map_to (AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src, int flags)
static int	opencl_frames_derive_to (AVHWFramesContext *dst_fc, AVHWFramesContext *src_fc, int flags)

Variables
struct {
const char *   key
cl_platform_info   name
}	opencl_platform_params []
struct {
const char *   key
cl_device_info   name
}	opencl_device_params []
struct {
const char *   key
cl_device_type   type
}	opencl_device_types []
const HWContextType	ff_hwcontext_type_opencl

Macro Definition Documentation

CL_USE_DEPRECATED_OPENCL_1_2_APIS

#define CL_USE_DEPRECATED_OPENCL_1_2_APIS

Definition at line 19 of file hwcontext_opencl.c.

CL_FUNC

#define CL_FUNC	(		name,
			desc
	)

Value:

        do {                                \
        if (fail)                                               \
            break;                                              \
        priv->name = clGetExtensionFunctionAddressForPlatform(  \
            priv->platform_id, #name);                          \
        if (!priv->name) {                                      \
            av_log(hwdev, AV_LOG_VERBOSE,                       \
                   desc " function not found (%s).\n", #name);  \
            fail = 1;                                           \
        } else {                                                \
            av_log(hwdev, AV_LOG_VERBOSE,                       \
                   desc " function found (%s).\n", #name);      \
        }                                                       \
    } while (0)

CHANNEL_ORDER

#define CHANNEL_ORDER	(		order,
			type
	)		case order: image_format->image_channel_order = type; break;

Function Documentation

opencl_error_callback()

static void CL_CALLBACK opencl_error_callback ( const char *  errinfo, const void *  private_info, size_t  cb, void *  user_data  )

static

Definition at line 167 of file hwcontext_opencl.c.

Referenced by opencl_device_create_internal().

opencl_device_free()

static void opencl_device_free ( AVHWDeviceContext *  hwdev )

static

Definition at line 176 of file hwcontext_opencl.c.

Referenced by opencl_device_create_internal().

opencl_get_platform_string()

static char* opencl_get_platform_string ( cl_platform_id  platform_id, cl_platform_info  key  )

static

Definition at line 223 of file hwcontext_opencl.c.

Referenced by opencl_check_platform_extension(), opencl_device_create_internal(), and opencl_filter_platform().

opencl_get_device_string()

static char* opencl_get_device_string ( cl_device_id  device_id, cl_device_info  key  )

static

Definition at line 244 of file hwcontext_opencl.c.

Referenced by opencl_check_device_extension(), opencl_device_create_internal(), and opencl_filter_device().

opencl_check_platform_extension()

static int opencl_check_platform_extension ( cl_platform_id  platform_id, const char *  name  )

static

Definition at line 265 of file hwcontext_opencl.c.

Referenced by opencl_check_extension().

opencl_check_device_extension()

static int opencl_check_device_extension ( cl_device_id  device_id, const char *  name  )

static

Definition at line 278 of file hwcontext_opencl.c.

Referenced by opencl_check_extension().

opencl_check_extension()

static av_unused int opencl_check_extension ( AVHWDeviceContext *  hwdev, const char *  name  )

static

Definition at line 291 of file hwcontext_opencl.c.

Referenced by opencl_device_init().

opencl_enumerate_platforms()

static int opencl_enumerate_platforms ( AVHWDeviceContext *  hwdev, cl_uint *  nb_platforms, cl_platform_id **  platforms, void *  context  )

static

Definition at line 312 of file hwcontext_opencl.c.

Referenced by opencl_device_create(), and opencl_device_derive().

opencl_filter_platform()

static int opencl_filter_platform ( AVHWDeviceContext *  hwdev, cl_platform_id  platform_id, const char *  platform_name, void *  context  )

static

Definition at line 343 of file hwcontext_opencl.c.

Referenced by opencl_device_create(), and opencl_device_derive().

opencl_enumerate_devices()

static int opencl_enumerate_devices ( AVHWDeviceContext *  hwdev, cl_platform_id  platform_id, const char *  platform_name, cl_uint *  nb_devices, cl_device_id **  devices, void *  context  )

static

Definition at line 378 of file hwcontext_opencl.c.

Referenced by opencl_device_create(), and opencl_device_derive().

opencl_filter_device()

static int opencl_filter_device ( AVHWDeviceContext *  hwdev, cl_device_id  device_id, const char *  device_name, void *  context  )

static

Definition at line 418 of file hwcontext_opencl.c.

Referenced by opencl_device_create().

opencl_device_create_internal()

static int opencl_device_create_internal ( AVHWDeviceContext *  hwdev, const OpenCLDeviceSelector *  selector, cl_context_properties *  props  )

static

Definition at line 508 of file hwcontext_opencl.c.

Referenced by opencl_device_create(), and opencl_device_derive().

opencl_device_create()

static int opencl_device_create ( AVHWDeviceContext *  hwdev, const char *  device, AVDictionary *  opts, int  flags  )

static

Definition at line 641 of file hwcontext_opencl.c.

Referenced by opencl_device_derive().

opencl_device_init()

static int opencl_device_init ( AVHWDeviceContext *  hwdev )

static

Definition at line 674 of file hwcontext_opencl.c.

opencl_device_uninit()

static void opencl_device_uninit ( AVHWDeviceContext *  hwdev )

static

Definition at line 910 of file hwcontext_opencl.c.

opencl_device_derive()

static int opencl_device_derive ( AVHWDeviceContext *  hwdev, AVHWDeviceContext *  src_ctx, AVDictionary *  opts, int  flags  )

static

Definition at line 1217 of file hwcontext_opencl.c.

opencl_get_plane_format()

static int opencl_get_plane_format ( enum AVPixelFormat  pixfmt, int  plane, int  width, int  height, cl_image_format *  image_format, cl_image_desc *  image_desc  )

static

Definition at line 1396 of file hwcontext_opencl.c.

Referenced by opencl_frames_get_constraints(), opencl_map_frame(), opencl_pool_alloc(), opencl_transfer_data_from(), and opencl_transfer_data_to().

opencl_frames_get_constraints()

static int opencl_frames_get_constraints ( AVHWDeviceContext *  hwdev, const void *  hwconfig, AVHWFramesConstraints *  constraints  )

static

Definition at line 1505 of file hwcontext_opencl.c.

opencl_pool_free()

static void opencl_pool_free ( void *  opaque, uint8_t *  data  )

static

Definition at line 1632 of file hwcontext_opencl.c.

Referenced by opencl_pool_alloc().

opencl_pool_alloc()

static AVBufferRef* opencl_pool_alloc ( void *  opaque, size_t  size  )

static

Definition at line 1650 of file hwcontext_opencl.c.

Referenced by opencl_frames_init().

opencl_frames_init_command_queue()

static int opencl_frames_init_command_queue ( AVHWFramesContext *  hwfc )

static

Definition at line 1706 of file hwcontext_opencl.c.

Referenced by opencl_frames_derive_to(), and opencl_frames_init().

opencl_frames_init()

static int opencl_frames_init ( AVHWFramesContext *  hwfc )

static

Definition at line 1725 of file hwcontext_opencl.c.

opencl_frames_uninit()

static void opencl_frames_uninit ( AVHWFramesContext *  hwfc )

static

Definition at line 1738 of file hwcontext_opencl.c.

opencl_get_buffer()

static int opencl_get_buffer ( AVHWFramesContext *  hwfc, AVFrame *  frame  )

static

Definition at line 1769 of file hwcontext_opencl.c.

opencl_transfer_get_formats()

static int opencl_transfer_get_formats ( AVHWFramesContext *  hwfc, enum AVHWFrameTransferDirection  dir, enum AVPixelFormat **  formats  )

static

Definition at line 1790 of file hwcontext_opencl.c.

opencl_wait_events()

static int opencl_wait_events ( AVHWFramesContext *  hwfc, cl_event *  events, int  nb_events  )

static

Definition at line 1807 of file hwcontext_opencl.c.

Referenced by opencl_map_frame(), opencl_transfer_data_from(), opencl_transfer_data_to(), and opencl_unmap_frame().

opencl_transfer_data_from()

static int opencl_transfer_data_from ( AVHWFramesContext *  hwfc, AVFrame *  dst, const AVFrame *  src  )

static

Definition at line 1831 of file hwcontext_opencl.c.

opencl_transfer_data_to()

static int opencl_transfer_data_to ( AVHWFramesContext *  hwfc, AVFrame *  dst, const AVFrame *  src  )

static

Definition at line 1886 of file hwcontext_opencl.c.

opencl_unmap_frame()

static void opencl_unmap_frame ( AVHWFramesContext *  hwfc, HWMapDescriptor *  hwmap  )

static

Definition at line 1948 of file hwcontext_opencl.c.

Referenced by opencl_map_frame().

opencl_map_frame()

static int opencl_map_frame ( AVHWFramesContext *  hwfc, AVFrame *  dst, const AVFrame *  src, int  flags  )

static

Definition at line 1977 of file hwcontext_opencl.c.

Referenced by opencl_map_from().

opencl_mem_flags_for_mapping()

static cl_mem_flags opencl_mem_flags_for_mapping ( int  map_flags )

inlinestatic

Definition at line 2217 of file hwcontext_opencl.c.

opencl_map_from()

static int opencl_map_from ( AVHWFramesContext *  hwfc, AVFrame *  dst, const AVFrame *  src, int  flags  )

static

Definition at line 2921 of file hwcontext_opencl.c.

opencl_map_to()

static int opencl_map_to ( AVHWFramesContext *  hwfc, AVFrame *  dst, const AVFrame *  src, int  flags  )

static

Definition at line 2930 of file hwcontext_opencl.c.

opencl_frames_derive_to()

static int opencl_frames_derive_to ( AVHWFramesContext *  dst_fc, AVHWFramesContext *  src_fc, int  flags  )

static

Definition at line 2975 of file hwcontext_opencl.c.

Variable Documentation

key

const char* key

Definition at line 189 of file hwcontext_opencl.c.

Referenced by opencl_filter_device(), opencl_filter_platform(), opencl_get_device_string(), and opencl_get_platform_string().

name

cl_device_info name

Definition at line 190 of file hwcontext_opencl.c.

Referenced by opencl_check_device_extension(), opencl_check_extension(), opencl_check_platform_extension(), opencl_filter_device(), and opencl_filter_platform().

opencl_platform_params

struct { ... } opencl_platform_params[]

Initial value:

= {
    { "platform_profile",    CL_PLATFORM_PROFILE    },
    { "platform_version",    CL_PLATFORM_VERSION    },
    { "platform_name",       CL_PLATFORM_NAME       },
    { "platform_vendor",     CL_PLATFORM_VENDOR     },
    { "platform_extensions", CL_PLATFORM_EXTENSIONS },
}

Referenced by opencl_filter_platform().

opencl_device_params

struct { ... } opencl_device_params[]

Initial value:

= {
    { "device_name",         CL_DEVICE_NAME         },
    { "device_vendor",       CL_DEVICE_VENDOR       },
    { "driver_version",      CL_DRIVER_VERSION      },
    { "device_version",      CL_DEVICE_VERSION      },
    { "device_profile",      CL_DEVICE_PROFILE      },
    { "device_extensions",   CL_DEVICE_EXTENSIONS   },
}

Referenced by opencl_filter_device().

type

cl_device_type type

Definition at line 213 of file hwcontext_opencl.c.

opencl_device_types

struct { ... } opencl_device_types[]

Initial value:

= {
    { "cpu",         CL_DEVICE_TYPE_CPU         },
    { "gpu",         CL_DEVICE_TYPE_GPU         },
    { "accelerator", CL_DEVICE_TYPE_ACCELERATOR },
    { "custom",      CL_DEVICE_TYPE_CUSTOM      },
    { "default",     CL_DEVICE_TYPE_DEFAULT     },
    { "all",         CL_DEVICE_TYPE_ALL         },
}

Referenced by opencl_filter_device().

ff_hwcontext_type_opencl

const HWContextType ff_hwcontext_type_opencl

Initial value:

= {
    .type                   = AV_HWDEVICE_TYPE_OPENCL,
    .name                   = "OpenCL",
 
    .device_hwctx_size      = sizeof(OpenCLDeviceContext),
    .frames_hwctx_size      = sizeof(OpenCLFramesContext),
 
    .device_create          = &opencl_device_create,
    .device_derive          = &opencl_device_derive,
    .device_init            = &opencl_device_init,
    .device_uninit          = &opencl_device_uninit,
 
    .frames_get_constraints = &opencl_frames_get_constraints,
    .frames_init            = &opencl_frames_init,
    .frames_uninit          = &opencl_frames_uninit,
    .frames_get_buffer      = &opencl_get_buffer,
 
    .transfer_get_formats   = &opencl_transfer_get_formats,
    .transfer_data_to       = &opencl_transfer_data_to,
    .transfer_data_from     = &opencl_transfer_data_from,
 
    .map_from               = &opencl_map_from,
    .map_to                 = &opencl_map_to,
    .frames_derive_to       = &opencl_frames_derive_to,
 
    .pix_fmts = (const enum AVPixelFormat[]) {
        AV_PIX_FMT_OPENCL,
        AV_PIX_FMT_NONE
    },
}

Definition at line 3039 of file hwcontext_opencl.c.