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hwcontext_opencl.c
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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define CL_USE_DEPRECATED_OPENCL_1_2_APIS
#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"
#if HAVE_OPENCL_VAAPI_BEIGNET
#include <unistd.h>
#include <va/va.h>
#include <va/va_drmcommon.h>
#include <CL/cl_intel.h>
#include "hwcontext_vaapi.h"
#endif
#if HAVE_OPENCL_DRM_BEIGNET
#include <unistd.h>
#include <CL/cl_intel.h>
#include "hwcontext_drm.h"
#endif
#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
#if CONFIG_LIBMFX
#include <mfxstructures.h>
#endif
#include <va/va.h>
#include <CL/cl_va_api_media_sharing_intel.h>
#include "hwcontext_vaapi.h"
#endif
#if HAVE_OPENCL_DXVA2
#define COBJMACROS
#include <CL/cl_dx9_media_sharing.h>
#include <dxva2api.h>
#include "hwcontext_dxva2.h"
#endif
#if HAVE_OPENCL_D3D11
#include <CL/cl_d3d11.h>
#include "hwcontext_d3d11va.h"
#endif
#if HAVE_OPENCL_DRM_ARM
#include <CL/cl_ext.h>
#include <drm_fourcc.h>
#include "hwcontext_drm.h"
#endif
#if HAVE_OPENCL_VIDEOTOOLBOX
#include <OpenCL/cl_gl_ext.h>
#include <VideoToolbox/VideoToolbox.h>
#endif
#if HAVE_OPENCL_VAAPI_INTEL_MEDIA && CONFIG_LIBMFX
extern int ff_qsv_get_surface_base_handle(mfxFrameSurface1 *surf,
enum AVHWDeviceType base_dev_typ,
void **base_handle);
#endif
typedef struct OpenCLDeviceContext {
/**
* The public AVOpenCLDeviceContext. See hwcontext_opencl.h for it.
*/
AVOpenCLDeviceContext p;
// Default command queue to use for transfer/mapping operations on
// the device. If the user supplies one, this is a reference to it.
// Otherwise, it is newly-created.
cl_command_queue command_queue;
// The platform the context exists on. This is needed to query and
// retrieve extension functions.
cl_platform_id platform_id;
// Platform/device-specific functions.
#if HAVE_OPENCL_DRM_BEIGNET
int beignet_drm_mapping_usable;
clCreateImageFromFdINTEL_fn clCreateImageFromFdINTEL;
#endif
#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
int qsv_mapping_usable;
clCreateFromVA_APIMediaSurfaceINTEL_fn
clCreateFromVA_APIMediaSurfaceINTEL;
clEnqueueAcquireVA_APIMediaSurfacesINTEL_fn
clEnqueueAcquireVA_APIMediaSurfacesINTEL;
clEnqueueReleaseVA_APIMediaSurfacesINTEL_fn
clEnqueueReleaseVA_APIMediaSurfacesINTEL;
#endif
#if HAVE_OPENCL_DXVA2
int dxva2_mapping_usable;
cl_dx9_media_adapter_type_khr dx9_media_adapter_type;
clCreateFromDX9MediaSurfaceKHR_fn
clCreateFromDX9MediaSurfaceKHR;
clEnqueueAcquireDX9MediaSurfacesKHR_fn
clEnqueueAcquireDX9MediaSurfacesKHR;
clEnqueueReleaseDX9MediaSurfacesKHR_fn
clEnqueueReleaseDX9MediaSurfacesKHR;
#endif
#if HAVE_OPENCL_D3D11
int d3d11_mapping_usable;
clCreateFromD3D11Texture2DKHR_fn
clCreateFromD3D11Texture2DKHR;
clEnqueueAcquireD3D11ObjectsKHR_fn
clEnqueueAcquireD3D11ObjectsKHR;
clEnqueueReleaseD3D11ObjectsKHR_fn
clEnqueueReleaseD3D11ObjectsKHR;
#endif
#if HAVE_OPENCL_DRM_ARM
int drm_arm_mapping_usable;
#endif
} OpenCLDeviceContext;
typedef struct OpenCLFramesContext {
/**
* The public AVOpenCLFramesContext. See hwcontext_opencl.h for it.
*/
AVOpenCLFramesContext p;
// Command queue used for transfer/mapping operations on this frames
// context. If the user supplies one, this is a reference to it.
// Otherwise, it is a reference to the default command queue for the
// device.
cl_command_queue command_queue;
#if HAVE_OPENCL_DXVA2 || HAVE_OPENCL_D3D11
// For mapping APIs which have separate creation and acquire/release
// steps, this stores the OpenCL memory objects corresponding to each
// frame.
int nb_mapped_frames;
AVOpenCLFrameDescriptor *mapped_frames;
#endif
} OpenCLFramesContext;
static void CL_CALLBACK opencl_error_callback(const char *errinfo,
const void *private_info,
size_t cb,
void *user_data)
{
AVHWDeviceContext *ctx = user_data;
av_log(ctx, AV_LOG_ERROR, "OpenCL error: %s\n", errinfo);
}
static void opencl_device_free(AVHWDeviceContext *hwdev)
{
AVOpenCLDeviceContext *hwctx = hwdev->hwctx;
cl_int cle;
cle = clReleaseContext(hwctx->context);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to release OpenCL "
"context: %d.\n", cle);
}
}
static struct {
const char *key;
cl_platform_info name;
} opencl_platform_params[] = {
{ "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 },
};
static struct {
const char *key;
cl_device_info name;
} opencl_device_params[] = {
{ "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 },
};
static struct {
const char *key;
cl_device_type type;
} opencl_device_types[] = {
{ "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 },
};
static char *opencl_get_platform_string(cl_platform_id platform_id,
cl_platform_info key)
{
char *str;
size_t size;
cl_int cle;
cle = clGetPlatformInfo(platform_id, key, 0, NULL, &size);
if (cle != CL_SUCCESS)
return NULL;
str = av_malloc(size);
if (!str)
return NULL;
cle = clGetPlatformInfo(platform_id, key, size, str, &size);
if (cle != CL_SUCCESS) {
av_free(str);
return NULL;
}
av_assert0(strlen(str) + 1 == size);
return str;
}
static char *opencl_get_device_string(cl_device_id device_id,
cl_device_info key)
{
char *str;
size_t size;
cl_int cle;
cle = clGetDeviceInfo(device_id, key, 0, NULL, &size);
if (cle != CL_SUCCESS)
return NULL;
str = av_malloc(size);
if (!str)
return NULL;
cle = clGetDeviceInfo(device_id, key, size, str, &size);
if (cle != CL_SUCCESS) {
av_free(str);
return NULL;
}
av_assert0(strlen(str) + 1== size);
return str;
}
static int opencl_check_platform_extension(cl_platform_id platform_id,
const char *name)
{
char *str;
int found = 0;
str = opencl_get_platform_string(platform_id,
CL_PLATFORM_EXTENSIONS);
if (str && strstr(str, name))
found = 1;
av_free(str);
return found;
}
static int opencl_check_device_extension(cl_device_id device_id,
const char *name)
{
char *str;
int found = 0;
str = opencl_get_device_string(device_id,
CL_DEVICE_EXTENSIONS);
if (str && strstr(str, name))
found = 1;
av_free(str);
return found;
}
static av_unused int opencl_check_extension(AVHWDeviceContext *hwdev,
const char *name)
{
OpenCLDeviceContext *priv = hwdev->hwctx;
AVOpenCLDeviceContext *hwctx = &priv->p;
if (opencl_check_platform_extension(priv->platform_id, name)) {
av_log(hwdev, AV_LOG_DEBUG,
"%s found as platform extension.\n", name);
return 1;
}
if (opencl_check_device_extension(hwctx->device_id, name)) {
av_log(hwdev, AV_LOG_DEBUG,
"%s found as device extension.\n", name);
return 1;
}
return 0;
}
static int opencl_enumerate_platforms(AVHWDeviceContext *hwdev,
cl_uint *nb_platforms,
cl_platform_id **platforms,
void *context)
{
cl_int cle;
cle = clGetPlatformIDs(0, NULL, nb_platforms);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to get number of "
"OpenCL platforms: %d.\n", cle);
return AVERROR(ENODEV);
}
av_log(hwdev, AV_LOG_DEBUG, "%u OpenCL platforms found.\n",
*nb_platforms);
*platforms = av_malloc_array(*nb_platforms, sizeof(**platforms));
if (!*platforms)
return AVERROR(ENOMEM);
cle = clGetPlatformIDs(*nb_platforms, *platforms, NULL);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to get list of OpenCL "
"platforms: %d.\n", cle);
av_freep(platforms);
return AVERROR(ENODEV);
}
return 0;
}
static int opencl_filter_platform(AVHWDeviceContext *hwdev,
cl_platform_id platform_id,
const char *platform_name,
void *context)
{
AVDictionary *opts = context;
const AVDictionaryEntry *param;
char *str;
int i, ret = 0;
for (i = 0; i < FF_ARRAY_ELEMS(opencl_platform_params); i++) {
param = av_dict_get(opts, opencl_platform_params[i].key,
NULL, 0);
if (!param)
continue;
str = opencl_get_platform_string(platform_id,
opencl_platform_params[i].name);
if (!str) {
av_log(hwdev, AV_LOG_ERROR, "Failed to query %s "
"of platform \"%s\".\n",
opencl_platform_params[i].key, platform_name);
return AVERROR_UNKNOWN;
}
if (!av_stristr(str, param->value)) {
av_log(hwdev, AV_LOG_DEBUG, "%s does not match (\"%s\").\n",
param->key, str);
ret = 1;
}
av_free(str);
}
return ret;
}
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)
{
cl_int cle;
cle = clGetDeviceIDs(platform_id, CL_DEVICE_TYPE_ALL,
0, NULL, nb_devices);
if (cle == CL_DEVICE_NOT_FOUND) {
av_log(hwdev, AV_LOG_DEBUG, "No devices found "
"on platform \"%s\".\n", platform_name);
*nb_devices = 0;
return 0;
} else if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to get number of devices "
"on platform \"%s\": %d.\n", platform_name, cle);
return AVERROR(ENODEV);
}
av_log(hwdev, AV_LOG_DEBUG, "%u OpenCL devices found on "
"platform \"%s\".\n", *nb_devices, platform_name);
*devices = av_malloc_array(*nb_devices, sizeof(**devices));
if (!*devices)
return AVERROR(ENOMEM);
cle = clGetDeviceIDs(platform_id, CL_DEVICE_TYPE_ALL,
*nb_devices, *devices, NULL);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to get list of devices "
"on platform \"%s\": %d.\n", platform_name, cle);
av_freep(devices);
return AVERROR(ENODEV);
}
return 0;
}
static int opencl_filter_device(AVHWDeviceContext *hwdev,
cl_device_id device_id,
const char *device_name,
void *context)
{
AVDictionary *opts = context;
const AVDictionaryEntry *param;
char *str;
int i, ret = 0;
param = av_dict_get(opts, "device_type", NULL, 0);
if (param) {
cl_device_type match_type = 0, device_type;
cl_int cle;
for (i = 0; i < FF_ARRAY_ELEMS(opencl_device_types); i++) {
if (!strcmp(opencl_device_types[i].key, param->value)) {
match_type = opencl_device_types[i].type;
break;
}
}
if (!match_type) {
av_log(hwdev, AV_LOG_ERROR, "Unknown device type %s.\n",
param->value);
return AVERROR(EINVAL);
}
cle = clGetDeviceInfo(device_id, CL_DEVICE_TYPE,
sizeof(device_type), &device_type, NULL);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to query device type "
"of device \"%s\".\n", device_name);
return AVERROR_UNKNOWN;
}
if (!(device_type & match_type)) {
av_log(hwdev, AV_LOG_DEBUG, "device_type does not match.\n");
return 1;
}
}
for (i = 0; i < FF_ARRAY_ELEMS(opencl_device_params); i++) {
param = av_dict_get(opts, opencl_device_params[i].key,
NULL, 0);
if (!param)
continue;
str = opencl_get_device_string(device_id,
opencl_device_params[i].name);
if (!str) {
av_log(hwdev, AV_LOG_ERROR, "Failed to query %s "
"of device \"%s\".\n",
opencl_device_params[i].key, device_name);
return AVERROR_UNKNOWN;
}
if (!av_stristr(str, param->value)) {
av_log(hwdev, AV_LOG_DEBUG, "%s does not match (\"%s\").\n",
param->key, str);
ret = 1;
}
av_free(str);
}
return ret;
}
typedef struct OpenCLDeviceSelector {
int platform_index;
int device_index;
void *context;
int (*enumerate_platforms)(AVHWDeviceContext *hwdev,
cl_uint *nb_platforms,
cl_platform_id **platforms,
void *context);
int (*filter_platform) (AVHWDeviceContext *hwdev,
cl_platform_id platform_id,
const char *platform_name,
void *context);
int (*enumerate_devices) (AVHWDeviceContext *hwdev,
cl_platform_id platform_id,
const char *platform_name,
cl_uint *nb_devices,
cl_device_id **devices,
void *context);
int (*filter_device) (AVHWDeviceContext *hwdev,
cl_device_id device_id,
const char *device_name,
void *context);
} OpenCLDeviceSelector;
static int opencl_device_create_internal(AVHWDeviceContext *hwdev,
const OpenCLDeviceSelector *selector,
cl_context_properties *props)
{
cl_uint nb_platforms;
cl_platform_id *platforms = NULL;
cl_platform_id platform_id;
cl_uint nb_devices;
cl_device_id *devices = NULL;
AVOpenCLDeviceContext *hwctx = hwdev->hwctx;
cl_int cle;
cl_context_properties default_props[3];
char *platform_name_src = NULL,
*device_name_src = NULL;
int err, found, p, d;
av_assert0(selector->enumerate_platforms &&
selector->enumerate_devices);
err = selector->enumerate_platforms(hwdev, &nb_platforms, &platforms,
selector->context);
if (err)
return err;
found = 0;
for (p = 0; p < nb_platforms; p++) {
const char *platform_name;
if (selector->platform_index >= 0 &&
selector->platform_index != p)
continue;
av_freep(&platform_name_src);
platform_name_src = opencl_get_platform_string(platforms[p],
CL_PLATFORM_NAME);
if (platform_name_src)
platform_name = platform_name_src;
else
platform_name = "Unknown Platform";
if (selector->filter_platform) {
err = selector->filter_platform(hwdev, platforms[p],
platform_name,
selector->context);
if (err < 0)
goto fail;
if (err > 0)
continue;
}
err = selector->enumerate_devices(hwdev, platforms[p], platform_name,
&nb_devices, &devices,
selector->context);
if (err < 0)
continue;
for (d = 0; d < nb_devices; d++) {
const char *device_name;
if (selector->device_index >= 0 &&
selector->device_index != d)
continue;
av_freep(&device_name_src);
device_name_src = opencl_get_device_string(devices[d],
CL_DEVICE_NAME);
if (device_name_src)
device_name = device_name_src;
else
device_name = "Unknown Device";
if (selector->filter_device) {
err = selector->filter_device(hwdev, devices[d],
device_name,
selector->context);
if (err < 0)
goto fail;
if (err > 0)
continue;
}
av_log(hwdev, AV_LOG_VERBOSE, "%d.%d: %s / %s\n", p, d,
platform_name, device_name);
++found;
platform_id = platforms[p];
hwctx->device_id = devices[d];
}
av_freep(&devices);
}
if (found == 0) {
av_log(hwdev, AV_LOG_ERROR, "No matching devices found.\n");
err = AVERROR(ENODEV);
goto fail;
}
if (found > 1) {
av_log(hwdev, AV_LOG_ERROR, "More than one matching device found.\n");
err = AVERROR(ENODEV);
goto fail;
}
if (!props) {
props = default_props;
default_props[0] = CL_CONTEXT_PLATFORM;
default_props[1] = (intptr_t)platform_id;
default_props[2] = 0;
} else {
if (props[0] == CL_CONTEXT_PLATFORM && props[1] == 0)
props[1] = (intptr_t)platform_id;
}
hwctx->context = clCreateContext(props, 1, &hwctx->device_id,
&opencl_error_callback, hwdev, &cle);
if (!hwctx->context) {
av_log(hwdev, AV_LOG_ERROR, "Failed to create OpenCL context: "
"%d.\n", cle);
err = AVERROR(ENODEV);
goto fail;
}
hwdev->free = &opencl_device_free;
err = 0;
fail:
av_freep(&platform_name_src);
av_freep(&device_name_src);
av_freep(&platforms);
av_freep(&devices);
return err;
}
static int opencl_device_create(AVHWDeviceContext *hwdev, const char *device,
AVDictionary *opts, int flags)
{
OpenCLDeviceSelector selector = {
.context = opts,
.enumerate_platforms = &opencl_enumerate_platforms,
.filter_platform = &opencl_filter_platform,
.enumerate_devices = &opencl_enumerate_devices,
.filter_device = &opencl_filter_device,
};
if (device && device[0]) {
// Match one or both indices for platform and device.
int d = -1, p = -1, ret;
if (device[0] == '.')
ret = sscanf(device, ".%d", &d);
else
ret = sscanf(device, "%d.%d", &p, &d);
if (ret < 1) {
av_log(hwdev, AV_LOG_ERROR, "Invalid OpenCL platform/device "
"index specification \"%s\".\n", device);
return AVERROR(EINVAL);
}
selector.platform_index = p;
selector.device_index = d;
} else {
selector.platform_index = -1;
selector.device_index = -1;
}
return opencl_device_create_internal(hwdev, &selector, NULL);
}
static int opencl_device_init(AVHWDeviceContext *hwdev)
{
OpenCLDeviceContext *priv = hwdev->hwctx;
AVOpenCLDeviceContext *hwctx = &priv->p;
cl_int cle;
if (hwctx->command_queue) {
cle = clRetainCommandQueue(hwctx->command_queue);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to retain external "
"command queue: %d.\n", cle);
return AVERROR(EIO);
}
priv->command_queue = hwctx->command_queue;
} else {
priv->command_queue = clCreateCommandQueue(hwctx->context,
hwctx->device_id,
0, &cle);
if (!priv->command_queue) {
av_log(hwdev, AV_LOG_ERROR, "Failed to create internal "
"command queue: %d.\n", cle);
return AVERROR(EIO);
}
}
cle = clGetDeviceInfo(hwctx->device_id, CL_DEVICE_PLATFORM,
sizeof(priv->platform_id), &priv->platform_id,
NULL);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to determine the OpenCL "
"platform containing the device.\n");
return AVERROR(EIO);
}
#define CL_FUNC(name, desc) 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)
#if HAVE_OPENCL_DRM_BEIGNET
{
int fail = 0;
CL_FUNC(clCreateImageFromFdINTEL,
"Beignet DRM to OpenCL image mapping");
if (fail) {
av_log(hwdev, AV_LOG_WARNING, "Beignet DRM to OpenCL "
"mapping not usable.\n");
priv->beignet_drm_mapping_usable = 0;
} else {
priv->beignet_drm_mapping_usable = 1;
}
}
#endif
#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
{
size_t props_size;
cl_context_properties *props = NULL;
VADisplay va_display;
const char *va_ext = "cl_intel_va_api_media_sharing";
int i, fail = 0;
if (!opencl_check_extension(hwdev, va_ext)) {
av_log(hwdev, AV_LOG_VERBOSE, "The %s extension is "
"required for QSV to OpenCL mapping.\n", va_ext);
goto no_qsv;
}
cle = clGetContextInfo(hwctx->context, CL_CONTEXT_PROPERTIES,
0, NULL, &props_size);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_VERBOSE, "Failed to get context "
"properties: %d.\n", cle);
goto no_qsv;
}
if (props_size == 0) {
av_log(hwdev, AV_LOG_VERBOSE, "Media sharing must be "
"enabled on context creation to use QSV to "
"OpenCL mapping.\n");
goto no_qsv;
}
props = av_malloc(props_size);
if (!props)
return AVERROR(ENOMEM);
cle = clGetContextInfo(hwctx->context, CL_CONTEXT_PROPERTIES,
props_size, props, NULL);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_VERBOSE, "Failed to get context "
"properties: %d.\n", cle);
goto no_qsv;
}
va_display = NULL;
for (i = 0; i < (props_size / sizeof(*props) - 1); i++) {
if (props[i] == CL_CONTEXT_VA_API_DISPLAY_INTEL) {
va_display = (VADisplay)(intptr_t)props[i+1];
break;
}
}
if (!va_display) {
av_log(hwdev, AV_LOG_VERBOSE, "Media sharing must be "
"enabled on context creation to use QSV to "
"OpenCL mapping.\n");
goto no_qsv;
}
if (!vaDisplayIsValid(va_display)) {
av_log(hwdev, AV_LOG_VERBOSE, "A valid VADisplay is "
"required on context creation to use QSV to "
"OpenCL mapping.\n");
goto no_qsv;
}
CL_FUNC(clCreateFromVA_APIMediaSurfaceINTEL,
"Intel QSV to OpenCL mapping");
CL_FUNC(clEnqueueAcquireVA_APIMediaSurfacesINTEL,
"Intel QSV in OpenCL acquire");
CL_FUNC(clEnqueueReleaseVA_APIMediaSurfacesINTEL,
"Intel QSV in OpenCL release");
if (fail) {
no_qsv:
av_log(hwdev, AV_LOG_WARNING, "QSV to OpenCL mapping "
"not usable.\n");
priv->qsv_mapping_usable = 0;
} else {
priv->qsv_mapping_usable = 1;
}
av_free(props);
}
#endif
#if HAVE_OPENCL_DXVA2
{
int fail = 0;
CL_FUNC(clCreateFromDX9MediaSurfaceKHR,
"DXVA2 to OpenCL mapping");
CL_FUNC(clEnqueueAcquireDX9MediaSurfacesKHR,
"DXVA2 in OpenCL acquire");
CL_FUNC(clEnqueueReleaseDX9MediaSurfacesKHR,
"DXVA2 in OpenCL release");
if (fail) {
av_log(hwdev, AV_LOG_WARNING, "DXVA2 to OpenCL mapping "
"not usable.\n");
priv->dxva2_mapping_usable = 0;
} else {
priv->dx9_media_adapter_type = CL_ADAPTER_D3D9EX_KHR;
priv->dxva2_mapping_usable = 1;
}
}
#endif
#if HAVE_OPENCL_D3D11
{
const char *d3d11_ext = "cl_khr_d3d11_sharing";
const char *nv12_ext = "cl_intel_d3d11_nv12_media_sharing";
int fail = 0;
if (!opencl_check_extension(hwdev, d3d11_ext)) {
av_log(hwdev, AV_LOG_VERBOSE, "The %s extension is "
"required for D3D11 to OpenCL mapping.\n", d3d11_ext);
fail = 1;
} else if (!opencl_check_extension(hwdev, nv12_ext)) {
av_log(hwdev, AV_LOG_VERBOSE, "The %s extension may be "
"required for D3D11 to OpenCL mapping.\n", nv12_ext);
// Not fatal.
}
CL_FUNC(clCreateFromD3D11Texture2DKHR,
"D3D11 to OpenCL mapping");
CL_FUNC(clEnqueueAcquireD3D11ObjectsKHR,
"D3D11 in OpenCL acquire");
CL_FUNC(clEnqueueReleaseD3D11ObjectsKHR,
"D3D11 in OpenCL release");
if (fail) {
av_log(hwdev, AV_LOG_WARNING, "D3D11 to OpenCL mapping "
"not usable.\n");
priv->d3d11_mapping_usable = 0;
} else {
priv->d3d11_mapping_usable = 1;
}
}
#endif
#if HAVE_OPENCL_DRM_ARM
{
const char *drm_arm_ext = "cl_arm_import_memory";
const char *image_ext = "cl_khr_image2d_from_buffer";
int fail = 0;
if (!opencl_check_extension(hwdev, drm_arm_ext)) {
av_log(hwdev, AV_LOG_VERBOSE, "The %s extension is "
"required for DRM to OpenCL mapping on ARM.\n",
drm_arm_ext);
fail = 1;
}
if (!opencl_check_extension(hwdev, image_ext)) {
av_log(hwdev, AV_LOG_VERBOSE, "The %s extension is "
"required for DRM to OpenCL mapping on ARM.\n",
image_ext);
fail = 1;
}
// clImportMemoryARM() is linked statically.
if (fail) {
av_log(hwdev, AV_LOG_WARNING, "DRM to OpenCL mapping on ARM "
"not usable.\n");
priv->drm_arm_mapping_usable = 0;
} else {
priv->drm_arm_mapping_usable = 1;
}
}
#endif
#undef CL_FUNC
return 0;
}
static void opencl_device_uninit(AVHWDeviceContext *hwdev)
{
OpenCLDeviceContext *priv = hwdev->hwctx;
cl_int cle;
if (priv->command_queue) {
cle = clReleaseCommandQueue(priv->command_queue);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to release internal "
"command queue reference: %d.\n", cle);
}
priv->command_queue = NULL;
}
}
#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
static int opencl_filter_intel_media_vaapi_platform(AVHWDeviceContext *hwdev,
cl_platform_id platform_id,
const char *platform_name,
void *context)
{
// This doesn't exist as a platform extension, so just test whether
// the function we will use for device enumeration exists.
if (!clGetExtensionFunctionAddressForPlatform(platform_id,
"clGetDeviceIDsFromVA_APIMediaAdapterINTEL")) {
av_log(hwdev, AV_LOG_DEBUG, "Platform %s does not export the "
"VAAPI device enumeration function.\n", platform_name);
return 1;
} else {
return 0;
}
}
static int opencl_enumerate_intel_media_vaapi_devices(AVHWDeviceContext *hwdev,
cl_platform_id platform_id,
const char *platform_name,
cl_uint *nb_devices,
cl_device_id **devices,
void *context)
{
VADisplay va_display = context;
clGetDeviceIDsFromVA_APIMediaAdapterINTEL_fn
clGetDeviceIDsFromVA_APIMediaAdapterINTEL;
cl_int cle;
clGetDeviceIDsFromVA_APIMediaAdapterINTEL =
clGetExtensionFunctionAddressForPlatform(platform_id,
"clGetDeviceIDsFromVA_APIMediaAdapterINTEL");
if (!clGetDeviceIDsFromVA_APIMediaAdapterINTEL) {
av_log(hwdev, AV_LOG_ERROR, "Failed to get address of "
"clGetDeviceIDsFromVA_APIMediaAdapterINTEL().\n");
return AVERROR_UNKNOWN;
}
cle = clGetDeviceIDsFromVA_APIMediaAdapterINTEL(
platform_id, CL_VA_API_DISPLAY_INTEL, va_display,
CL_PREFERRED_DEVICES_FOR_VA_API_INTEL, 0, NULL, nb_devices);
if (cle == CL_DEVICE_NOT_FOUND) {
av_log(hwdev, AV_LOG_DEBUG, "No VAAPI-supporting devices found "
"on platform \"%s\".\n", platform_name);
*nb_devices = 0;
return 0;
} else if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to get number of devices "
"on platform \"%s\": %d.\n", platform_name, cle);
return AVERROR_UNKNOWN;
}
*devices = av_malloc_array(*nb_devices, sizeof(**devices));
if (!*devices)
return AVERROR(ENOMEM);
cle = clGetDeviceIDsFromVA_APIMediaAdapterINTEL(
platform_id, CL_VA_API_DISPLAY_INTEL, va_display,
CL_PREFERRED_DEVICES_FOR_VA_API_INTEL, *nb_devices, *devices, NULL);
if (cle != CL_SUCCESS) {
av_log(hwdev, AV_LOG_ERROR, "Failed to get list of VAAPI-supporting "
"devices on platform \"%s\": %d.\n", platform_name, cle);
av_freep(devices);
return AVERROR_UNKNOWN;
}
return 0;
}
static int opencl_filter_intel_media_vaapi_device(AVHWDeviceContext *hwdev,
cl_device_id device_id,
const char *device_name,
void *context)
{