[FFmpeg-cvslog] hwcontext_opencl: DXVA2 to OpenCL mapping
Mark Thompson
git at videolan.org
Thu Nov 23 01:22:50 EET 2017
ffmpeg | branch: master | Mark Thompson <sw at jkqxz.net> | Sun Mar 5 16:21:41 2017 +0000| [9e7cda1b1e790c3d6a7507820a0b1e77804527ca] | committer: Mark Thompson
hwcontext_opencl: DXVA2 to OpenCL mapping
Using cl_khr_dx9_media_sharing.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9e7cda1b1e790c3d6a7507820a0b1e77804527ca
---
configure | 6 +
libavutil/hwcontext_opencl.c | 397 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 403 insertions(+)
diff --git a/configure b/configure
index 34fe16f80e..9b0542b2f2 100755
--- a/configure
+++ b/configure
@@ -2120,6 +2120,7 @@ HAVE_LIST="
$TYPES_LIST
makeinfo
makeinfo_html
+ opencl_dxva2
opencl_vaapi_beignet
opencl_vaapi_intel_media
perl
@@ -6166,6 +6167,11 @@ if enabled_all opencl vaapi ; then
fi
fi
+if enabled_all opencl dxva2 ; then
+ check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
+ enable opencl_dxva2
+fi
+
enabled vdpau &&
check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
disable vdpau
diff --git a/libavutil/hwcontext_opencl.c b/libavutil/hwcontext_opencl.c
index ee6ebd18d1..cbee32b94c 100644
--- a/libavutil/hwcontext_opencl.c
+++ b/libavutil/hwcontext_opencl.c
@@ -44,6 +44,13 @@
#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
+
typedef struct OpenCLDeviceContext {
// Default command queue to use for transfer/mapping operations on
@@ -70,6 +77,18 @@ typedef struct OpenCLDeviceContext {
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
} OpenCLDeviceContext;
typedef struct OpenCLFramesContext {
@@ -78,6 +97,14 @@ typedef struct OpenCLFramesContext {
// Otherwise, it is a reference to the default command queue for the
// device.
cl_command_queue command_queue;
+
+#if HAVE_OPENCL_DXVA2
+ // 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;
@@ -729,6 +756,28 @@ static int opencl_device_init(AVHWDeviceContext *hwdev)
}
#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
+
#undef CL_FUNC
return 0;
@@ -837,6 +886,103 @@ static int opencl_filter_intel_media_vaapi_device(AVHWDeviceContext *hwdev,
}
#endif
+#if HAVE_OPENCL_DXVA2
+static int opencl_filter_dxva2_platform(AVHWDeviceContext *hwdev,
+ cl_platform_id platform_id,
+ const char *platform_name,
+ void *context)
+{
+ const char *dx9_ext = "cl_khr_dx9_media_sharing";
+
+ if (opencl_check_platform_extension(platform_id, dx9_ext)) {
+ return 0;
+ } else {
+ av_log(hwdev, AV_LOG_DEBUG, "Platform %s does not support the "
+ "%s extension.\n", platform_name, dx9_ext);
+ return 1;
+ }
+}
+
+static int opencl_enumerate_dxva2_devices(AVHWDeviceContext *hwdev,
+ cl_platform_id platform_id,
+ const char *platform_name,
+ cl_uint *nb_devices,
+ cl_device_id **devices,
+ void *context)
+{
+ IDirect3DDevice9 *device = context;
+ clGetDeviceIDsFromDX9MediaAdapterKHR_fn
+ clGetDeviceIDsFromDX9MediaAdapterKHR;
+ cl_dx9_media_adapter_type_khr media_adapter_type = CL_ADAPTER_D3D9EX_KHR;
+ cl_int cle;
+
+ clGetDeviceIDsFromDX9MediaAdapterKHR =
+ clGetExtensionFunctionAddressForPlatform(platform_id,
+ "clGetDeviceIDsFromDX9MediaAdapterKHR");
+ if (!clGetDeviceIDsFromDX9MediaAdapterKHR) {
+ av_log(hwdev, AV_LOG_ERROR, "Failed to get address of "
+ "clGetDeviceIDsFromDX9MediaAdapterKHR().\n");
+ return AVERROR_UNKNOWN;
+ }
+
+ cle = clGetDeviceIDsFromDX9MediaAdapterKHR(
+ platform_id, 1, &media_adapter_type, (void**)&device,
+ CL_PREFERRED_DEVICES_FOR_DX9_MEDIA_ADAPTER_KHR,
+ 0, NULL, nb_devices);
+ if (cle == CL_DEVICE_NOT_FOUND) {
+ av_log(hwdev, AV_LOG_DEBUG, "No DXVA2-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 = clGetDeviceIDsFromDX9MediaAdapterKHR(
+ platform_id, 1, &media_adapter_type, (void**)&device,
+ CL_PREFERRED_DEVICES_FOR_DX9_MEDIA_ADAPTER_KHR,
+ *nb_devices, *devices, NULL);
+ if (cle != CL_SUCCESS) {
+ av_log(hwdev, AV_LOG_ERROR, "Failed to get list of DXVA2-supporting "
+ "devices on platform \"%s\": %d.\n", platform_name, cle);
+ av_freep(devices);
+ return AVERROR_UNKNOWN;
+ }
+
+ return 0;
+}
+
+static int opencl_filter_gpu_device(AVHWDeviceContext *hwdev,
+ cl_device_id device_id,
+ const char *device_name,
+ void *context)
+{
+ cl_device_type device_type;
+ cl_int cle;
+
+ 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 & CL_DEVICE_TYPE_GPU)) {
+ av_log(hwdev, AV_LOG_DEBUG, "Device %s skipped (not GPU).\n",
+ device_name);
+ return 1;
+ }
+
+ return 0;
+}
+#endif
+
static int opencl_device_derive(AVHWDeviceContext *hwdev,
AVHWDeviceContext *src_ctx,
int flags)
@@ -903,6 +1049,60 @@ static int opencl_device_derive(AVHWDeviceContext *hwdev,
break;
#endif
+#if HAVE_OPENCL_DXVA2
+ case AV_HWDEVICE_TYPE_DXVA2:
+ {
+ AVDXVA2DeviceContext *src_hwctx = src_ctx->hwctx;
+ IDirect3DDevice9 *device;
+ HANDLE device_handle;
+ HRESULT hr;
+
+ hr = IDirect3DDeviceManager9_OpenDeviceHandle(src_hwctx->devmgr,
+ &device_handle);
+ if (FAILED(hr)) {
+ av_log(hwdev, AV_LOG_ERROR, "Failed to open device handle "
+ "for Direct3D9 device: %lx.\n", (unsigned long)hr);
+ err = AVERROR_UNKNOWN;
+ break;
+ }
+
+ hr = IDirect3DDeviceManager9_LockDevice(src_hwctx->devmgr,
+ device_handle,
+ &device, FALSE);
+ if (SUCCEEDED(hr)) {
+ cl_context_properties props[5] = {
+ CL_CONTEXT_PLATFORM,
+ 0,
+ CL_CONTEXT_ADAPTER_D3D9EX_KHR,
+ (intptr_t)device,
+ 0,
+ };
+ OpenCLDeviceSelector selector = {
+ .platform_index = -1,
+ .device_index = -1,
+ .context = device,
+ .enumerate_platforms = &opencl_enumerate_platforms,
+ .filter_platform = &opencl_filter_dxva2_platform,
+ .enumerate_devices = &opencl_enumerate_dxva2_devices,
+ .filter_device = &opencl_filter_gpu_device,
+ };
+
+ err = opencl_device_create_internal(hwdev, &selector, props);
+
+ IDirect3DDeviceManager9_UnlockDevice(src_hwctx->devmgr,
+ device_handle, FALSE);
+ } else {
+ av_log(hwdev, AV_LOG_ERROR, "Failed to lock device handle "
+ "for Direct3D9 device: %lx.\n", (unsigned long)hr);
+ err = AVERROR_UNKNOWN;
+ }
+
+ IDirect3DDeviceManager9_CloseDeviceHandle(src_hwctx->devmgr,
+ device_handle);
+ }
+ break;
+#endif
+
default:
err = AVERROR(ENOSYS);
break;
@@ -1261,6 +1461,22 @@ static void opencl_frames_uninit(AVHWFramesContext *hwfc)
OpenCLFramesContext *priv = hwfc->internal->priv;
cl_int cle;
+#if HAVE_OPENCL_DXVA2
+ int i, p;
+ for (i = 0; i < priv->nb_mapped_frames; i++) {
+ AVOpenCLFrameDescriptor *desc = &priv->mapped_frames[i];
+ for (p = 0; p < desc->nb_planes; p++) {
+ cle = clReleaseMemObject(desc->planes[p]);
+ if (cle != CL_SUCCESS) {
+ av_log(hwfc, AV_LOG_ERROR, "Failed to release mapped "
+ "frame object (frame %d plane %d): %d.\n",
+ i, p, cle);
+ }
+ }
+ }
+ av_freep(&priv->mapped_frames);
+#endif
+
cle = clReleaseCommandQueue(priv->command_queue);
if (cle != CL_SUCCESS) {
av_log(hwfc, AV_LOG_ERROR, "Failed to release frame "
@@ -1878,6 +2094,170 @@ fail:
#endif
+#if HAVE_OPENCL_DXVA2
+
+static void opencl_unmap_from_dxva2(AVHWFramesContext *dst_fc,
+ HWMapDescriptor *hwmap)
+{
+ AVOpenCLFrameDescriptor *desc = hwmap->priv;
+ OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+ OpenCLFramesContext *frames_priv = dst_fc->device_ctx->internal->priv;
+ cl_event event;
+ cl_int cle;
+
+ av_log(dst_fc, AV_LOG_DEBUG, "Unmap DXVA2 surface from OpenCL.\n");
+
+ cle = device_priv->clEnqueueReleaseDX9MediaSurfacesKHR(
+ frames_priv->command_queue, desc->nb_planes, desc->planes,
+ 0, NULL, &event);
+ if (cle != CL_SUCCESS) {
+ av_log(dst_fc, AV_LOG_ERROR, "Failed to release surface "
+ "handle: %d.\n", cle);
+ return;
+ }
+
+ opencl_wait_events(dst_fc, &event, 1);
+}
+
+static int opencl_map_from_dxva2(AVHWFramesContext *dst_fc, AVFrame *dst,
+ const AVFrame *src, int flags)
+{
+ AVHWFramesContext *src_fc =
+ (AVHWFramesContext*)src->hw_frames_ctx->data;
+ AVDXVA2FramesContext *src_hwctx = src_fc->hwctx;
+ OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+ OpenCLFramesContext *frames_priv = dst_fc->internal->priv;
+ AVOpenCLFrameDescriptor *desc;
+ cl_event event;
+ cl_int cle;
+ int err, i;
+
+ av_log(dst_fc, AV_LOG_DEBUG, "Map DXVA2 surface %p to "
+ "OpenCL.\n", src->data[3]);
+
+ for (i = 0; i < src_hwctx->nb_surfaces; i++) {
+ if (src_hwctx->surfaces[i] == (IDirect3DSurface9*)src->data[3])
+ break;
+ }
+ if (i >= src_hwctx->nb_surfaces) {
+ av_log(dst_fc, AV_LOG_ERROR, "Trying to map from a surface which "
+ "is not in the mapped frames context.\n");
+ return AVERROR(EINVAL);
+ }
+
+ desc = &frames_priv->mapped_frames[i];
+
+ cle = device_priv->clEnqueueAcquireDX9MediaSurfacesKHR(
+ frames_priv->command_queue, desc->nb_planes, desc->planes,
+ 0, NULL, &event);
+ if (cle != CL_SUCCESS) {
+ av_log(dst_fc, AV_LOG_ERROR, "Failed to acquire surface "
+ "handle: %d.\n", cle);
+ return AVERROR(EIO);
+ }
+
+ err = opencl_wait_events(dst_fc, &event, 1);
+ if (err < 0)
+ goto fail;
+
+ for (i = 0; i < desc->nb_planes; i++)
+ dst->data[i] = (uint8_t*)desc->planes[i];
+
+ err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
+ &opencl_unmap_from_dxva2, desc);
+ if (err < 0)
+ goto fail;
+
+ dst->width = src->width;
+ dst->height = src->height;
+
+ return 0;
+
+fail:
+ cle = device_priv->clEnqueueReleaseDX9MediaSurfacesKHR(
+ frames_priv->command_queue, desc->nb_planes, desc->planes,
+ 0, NULL, &event);
+ if (cle == CL_SUCCESS)
+ opencl_wait_events(dst_fc, &event, 1);
+ return err;
+}
+
+static int opencl_frames_derive_from_dxva2(AVHWFramesContext *dst_fc,
+ AVHWFramesContext *src_fc, int flags)
+{
+ AVOpenCLDeviceContext *dst_dev = dst_fc->device_ctx->hwctx;
+ AVDXVA2FramesContext *src_hwctx = src_fc->hwctx;
+ OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+ OpenCLFramesContext *frames_priv = dst_fc->internal->priv;
+ cl_mem_flags cl_flags;
+ cl_int cle;
+ int err, i, p, nb_planes;
+
+ if (src_fc->sw_format != AV_PIX_FMT_NV12) {
+ av_log(dst_fc, AV_LOG_ERROR, "Only NV12 textures are supported "
+ "for DXVA2 to OpenCL mapping.\n");
+ return AVERROR(EINVAL);
+ }
+ nb_planes = 2;
+
+ if (src_fc->initial_pool_size == 0) {
+ av_log(dst_fc, AV_LOG_ERROR, "Only fixed-size pools are supported "
+ "for DXVA2 to OpenCL mapping.\n");
+ return AVERROR(EINVAL);
+ }
+
+ cl_flags = opencl_mem_flags_for_mapping(flags);
+ if (!cl_flags)
+ return AVERROR(EINVAL);
+
+ frames_priv->nb_mapped_frames = src_hwctx->nb_surfaces;
+
+ frames_priv->mapped_frames =
+ av_mallocz_array(frames_priv->nb_mapped_frames,
+ sizeof(*frames_priv->mapped_frames));
+ if (!frames_priv->mapped_frames)
+ return AVERROR(ENOMEM);
+
+ for (i = 0; i < frames_priv->nb_mapped_frames; i++) {
+ AVOpenCLFrameDescriptor *desc = &frames_priv->mapped_frames[i];
+ cl_dx9_surface_info_khr surface_info = {
+ .resource = src_hwctx->surfaces[i],
+ .shared_handle = NULL,
+ };
+ desc->nb_planes = nb_planes;
+ for (p = 0; p < nb_planes; p++) {
+ desc->planes[p] =
+ device_priv->clCreateFromDX9MediaSurfaceKHR(
+ dst_dev->context, cl_flags,
+ device_priv->dx9_media_adapter_type,
+ &surface_info, p, &cle);
+ if (!desc->planes[p]) {
+ av_log(dst_fc, AV_LOG_ERROR, "Failed to create CL "
+ "image from plane %d of DXVA2 surface %d: %d.\n",
+ p, i, cle);
+ err = AVERROR(EIO);
+ goto fail;
+ }
+ }
+ }
+
+ return 0;
+
+fail:
+ for (i = 0; i < frames_priv->nb_mapped_frames; i++) {
+ AVOpenCLFrameDescriptor *desc = &frames_priv->mapped_frames[i];
+ for (p = 0; p < desc->nb_planes; p++) {
+ if (desc->planes[p])
+ clReleaseMemObject(desc->planes[p]);
+ }
+ }
+ av_freep(&frames_priv->mapped_frames);
+ frames_priv->nb_mapped_frames = 0;
+ return err;
+}
+
+#endif
+
static int opencl_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
const AVFrame *src, int flags)
{
@@ -1904,6 +2284,11 @@ static int opencl_map_to(AVHWFramesContext *hwfc, AVFrame *dst,
if (priv->qsv_mapping_usable)
return opencl_map_from_qsv(hwfc, dst, src, flags);
#endif
+#if HAVE_OPENCL_DXVA2
+ case AV_PIX_FMT_DXVA2_VLD:
+ if (priv->dxva2_mapping_usable)
+ return opencl_map_from_dxva2(hwfc, dst, src, flags);
+#endif
}
return AVERROR(ENOSYS);
}
@@ -1926,6 +2311,18 @@ static int opencl_frames_derive_to(AVHWFramesContext *dst_fc,
return AVERROR(ENOSYS);
break;
#endif
+#if HAVE_OPENCL_DXVA2
+ case AV_HWDEVICE_TYPE_DXVA2:
+ if (!priv->dxva2_mapping_usable)
+ return AVERROR(ENOSYS);
+ {
+ int err;
+ err = opencl_frames_derive_from_dxva2(dst_fc, src_fc, flags);
+ if (err < 0)
+ return err;
+ }
+ break;
+#endif
default:
return AVERROR(ENOSYS);
}
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