[FFmpeg-devel] [PATCH] lavc/qsv: adding DX11 support

Artem Galin artem.galin at gmail.com
Mon Dec 23 20:31:04 EET 2019


This enables DX11 support for QSV with higher priority than DX9.
In case of multiple GPUs configuration, DX9 API does not allow to get
access to QSV device in some cases - headless.
Implementation based on DX11 resolves that restriction by enumerating list of available GPUs and finding device with QSV support.

Signed-off-by: Artem Galin <artem.galin at gmail.com>
---
 libavcodec/qsv.c              | 13 +++--
 libavcodec/qsv_internal.h     |  1 +
 libavutil/hwcontext_d3d11va.c | 57 +++++++++++++++++++++-
 libavutil/hwcontext_qsv.c     | 89 +++++++++++++++++++++++++++++++----
 libavutil/hwcontext_qsv.h     |  1 +
 5 files changed, 147 insertions(+), 14 deletions(-)

diff --git a/libavcodec/qsv.c b/libavcodec/qsv.c
index b00e427435..33ac7a3373 100644
--- a/libavcodec/qsv.c
+++ b/libavcodec/qsv.c
@@ -414,7 +414,7 @@ static int ff_qsv_set_display_handle(AVCodecContext *avctx, QSVSession *qs)
 int ff_qsv_init_internal_session(AVCodecContext *avctx, QSVSession *qs,
                                  const char *load_plugins, int gpu_copy)
 {
-    mfxIMPL          impl = MFX_IMPL_AUTO_ANY;
+    mfxIMPL          impl = MFX_IMPL_AUTO_ANY | MFX_IMPL_VIA_D3D11;
     mfxVersion        ver = { { QSV_VERSION_MINOR, QSV_VERSION_MAJOR } };
     mfxInitParam init_par = { MFX_IMPL_AUTO_ANY };
 
@@ -504,6 +504,7 @@ static AVBufferRef *qsv_create_mids(AVBufferRef *hw_frames_ref)
     for (i = 0; i < nb_surfaces; i++) {
         QSVMid *mid = &mids[i];
         mid->handle        = frames_hwctx->surfaces[i].Data.MemId;
+        mid->texture       = frames_hwctx->texture;
         mid->hw_frames_ref = hw_frames_ref1;
     }
 
@@ -713,7 +714,13 @@ static mfxStatus qsv_frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
 static mfxStatus qsv_frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
 {
     QSVMid *qsv_mid = (QSVMid*)mid;
-    *hdl = qsv_mid->handle;
+    if (qsv_mid->texture) {
+        mfxHDLPair *pair  =  (mfxHDLPair*)hdl;
+        pair->first  = qsv_mid->texture;
+        pair->second = qsv_mid->handle;
+    } else {
+        *hdl = qsv_mid->handle;
+    }
     return MFX_ERR_NONE;
 }
 
@@ -723,8 +730,8 @@ int ff_qsv_init_session_device(AVCodecContext *avctx, mfxSession *psession,
 {
     static const mfxHandleType handle_types[] = {
         MFX_HANDLE_VA_DISPLAY,
-        MFX_HANDLE_D3D9_DEVICE_MANAGER,
         MFX_HANDLE_D3D11_DEVICE,
+        MFX_HANDLE_D3D9_DEVICE_MANAGER,
     };
     AVHWDeviceContext    *device_ctx = (AVHWDeviceContext*)device_ref->data;
     AVQSVDeviceContext *device_hwctx = device_ctx->hwctx;
diff --git a/libavcodec/qsv_internal.h b/libavcodec/qsv_internal.h
index 37559270e5..09425fb431 100644
--- a/libavcodec/qsv_internal.h
+++ b/libavcodec/qsv_internal.h
@@ -60,6 +60,7 @@
 
 typedef struct QSVMid {
     AVBufferRef *hw_frames_ref;
+    void *texture;
     mfxHDL handle;
 
     AVFrame *locked_frame;
diff --git a/libavutil/hwcontext_d3d11va.c b/libavutil/hwcontext_d3d11va.c
index 6670c47579..a08479fd96 100644
--- a/libavutil/hwcontext_d3d11va.c
+++ b/libavutil/hwcontext_d3d11va.c
@@ -244,7 +244,7 @@ static int d3d11va_frames_init(AVHWFramesContext *ctx)
         return AVERROR(EINVAL);
     }
 
-    texDesc = (D3D11_TEXTURE2D_DESC){
+    texDesc = (D3D11_TEXTURE2D_DESC) {
         .Width      = ctx->width,
         .Height     = ctx->height,
         .MipLevels  = 1,
@@ -510,6 +510,46 @@ static void d3d11va_device_uninit(AVHWDeviceContext *hwdev)
     }
 }
 
+static int d3d11va_device_find_qsv_adapter(AVHWDeviceContext *ctx, UINT creationFlags)
+{
+    HRESULT hr;
+    IDXGIAdapter *adapter = NULL;
+    int adapter_id = 0;
+    int vendor_id = 0x8086;
+    IDXGIFactory2 *factory;
+    hr = mCreateDXGIFactory(&IID_IDXGIFactory2, (void **)&factory);
+    while (IDXGIFactory2_EnumAdapters(factory, adapter_id++, &adapter) != DXGI_ERROR_NOT_FOUND)
+    {
+        ID3D11Device* device = NULL;
+        DXGI_ADAPTER_DESC adapter_desc;
+
+        hr = mD3D11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, NULL, creationFlags, NULL, 0, D3D11_SDK_VERSION, &device, NULL, NULL);
+        if (FAILED(hr)) {
+            av_log(ctx, AV_LOG_ERROR, "D3D11CreateDevice returned error\n");
+            continue;
+        }
+
+        hr = IDXGIAdapter2_GetDesc(adapter, &adapter_desc);
+        if (FAILED(hr)) {
+            av_log(ctx, AV_LOG_ERROR, "IDXGIAdapter2_GetDesc returned error\n");
+            continue;
+        }
+
+        if(device)
+            ID3D11Device_Release(device);
+
+        if (adapter)
+            IDXGIAdapter_Release(adapter);
+
+        if (adapter_desc.VendorId == vendor_id) {
+            IDXGIFactory2_Release(factory);
+            return adapter_id - 1;
+        }
+    }
+    IDXGIFactory2_Release(factory);
+    return -1;
+}
+
 static int d3d11va_device_create(AVHWDeviceContext *ctx, const char *device,
                                  AVDictionary *opts, int flags)
 {
@@ -519,7 +559,9 @@ static int d3d11va_device_create(AVHWDeviceContext *ctx, const char *device,
     IDXGIAdapter           *pAdapter = NULL;
     ID3D10Multithread      *pMultithread;
     UINT creationFlags = D3D11_CREATE_DEVICE_VIDEO_SUPPORT;
+    int adapter = -1;
     int is_debug       = !!av_dict_get(opts, "debug", NULL, 0);
+    int is_qsv         = !!av_dict_get(opts, "d3d11va_qsv", NULL, 0);
     int ret;
 
     // (On UWP we can't check this.)
@@ -538,11 +580,22 @@ static int d3d11va_device_create(AVHWDeviceContext *ctx, const char *device,
         return AVERROR_UNKNOWN;
     }
 
+    if (is_qsv) {
+        adapter = d3d11va_device_find_qsv_adapter(ctx, creationFlags);
+        if (adapter < 0) {
+            av_log(ctx, AV_LOG_ERROR, "Failed to find DX11 adapter with QSV support\n");
+            return AVERROR_UNKNOWN;
+        }
+    }
+
     if (device) {
+        adapter = atoi(device);
+    }
+
+    if (adapter >= 0) {
         IDXGIFactory2 *pDXGIFactory;
         hr = mCreateDXGIFactory(&IID_IDXGIFactory2, (void **)&pDXGIFactory);
         if (SUCCEEDED(hr)) {
-            int adapter = atoi(device);
             if (FAILED(IDXGIFactory2_EnumAdapters(pDXGIFactory, adapter, &pAdapter)))
                 pAdapter = NULL;
             IDXGIFactory2_Release(pDXGIFactory);
diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index b1b67400de..ae4247abf2 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -27,9 +27,13 @@
 #include <pthread.h>
 #endif
 
+#define COBJMACROS
 #if CONFIG_VAAPI
 #include "hwcontext_vaapi.h"
 #endif
+#if CONFIG_D3D11VA
+#include "hwcontext_d3d11va.h"
+#endif
 #if CONFIG_DXVA2
 #include "hwcontext_dxva2.h"
 #endif
@@ -89,6 +93,9 @@ static const struct {
 #if CONFIG_VAAPI
     { MFX_HANDLE_VA_DISPLAY,          AV_HWDEVICE_TYPE_VAAPI, AV_PIX_FMT_VAAPI },
 #endif
+#if CONFIG_D3D11VA
+    { MFX_HANDLE_D3D11_DEVICE, AV_HWDEVICE_TYPE_D3D11VA, AV_PIX_FMT_D3D11 },
+#endif
 #if CONFIG_DXVA2
     { MFX_HANDLE_D3D9_DEVICE_MANAGER, AV_HWDEVICE_TYPE_DXVA2, AV_PIX_FMT_DXVA2_VLD },
 #endif
@@ -229,9 +236,17 @@ static int qsv_init_child_ctx(AVHWFramesContext *ctx)
         child_device_hwctx->display = (VADisplay)device_priv->handle;
     }
 #endif
+#if CONFIG_D3D11VA
+    if (child_device_ctx->type == AV_HWDEVICE_TYPE_D3D11VA) {
+        AVD3D11VADeviceContext *child_device_hwctx = child_device_ctx->hwctx;
+        ID3D11Device_AddRef((ID3D11Device*)device_priv->handle);
+        child_device_hwctx->device = (ID3D11Device*)device_priv->handle;
+    }
+#endif
 #if CONFIG_DXVA2
     if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
         AVDXVA2DeviceContext *child_device_hwctx = child_device_ctx->hwctx;
+        IDirect3DDeviceManager9_AddRef((IDirect3DDeviceManager9*)device_priv->handle);
         child_device_hwctx->devmgr = (IDirect3DDeviceManager9*)device_priv->handle;
     }
 #endif
@@ -255,6 +270,16 @@ static int qsv_init_child_ctx(AVHWFramesContext *ctx)
     child_frames_ctx->width             = FFALIGN(ctx->width, 16);
     child_frames_ctx->height            = FFALIGN(ctx->height, 16);
 
+#if CONFIG_D3D11VA
+    if (child_device_ctx->type == AV_HWDEVICE_TYPE_D3D11VA) {
+        AVD3D11VAFramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
+        child_frames_hwctx->MiscFlags |= D3D11_RESOURCE_MISC_SHARED;
+        if (hwctx->frame_type & MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET)
+            child_frames_hwctx->BindFlags = D3D11_BIND_RENDER_TARGET ;
+        else
+            child_frames_hwctx->BindFlags = D3D11_BIND_DECODER;
+    }
+#endif
 #if CONFIG_DXVA2
     if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
         AVDXVA2FramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
@@ -279,6 +304,18 @@ static int qsv_init_child_ctx(AVHWFramesContext *ctx)
         hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
     }
 #endif
+#if CONFIG_D3D11VA
+    if (child_device_ctx->type == AV_HWDEVICE_TYPE_D3D11VA) {
+        AVD3D11VAFramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
+        hwctx->texture = child_frames_hwctx->texture;
+        for (i = 0; i < ctx->initial_pool_size; i++)
+            s->surfaces_internal[i].Data.MemId = (mfxMemId)(int64_t)i;
+        if (child_frames_hwctx->BindFlags == D3D11_BIND_DECODER)
+            hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
+        else
+            hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET;
+    }
+#endif
 #if CONFIG_DXVA2
     if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
         AVDXVA2FramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
@@ -421,7 +458,16 @@ static mfxStatus frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
 
 static mfxStatus frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
 {
-    *hdl = mid;
+    AVHWFramesContext    *ctx = pthis;
+    AVQSVFramesContext *hwctx = ctx->hwctx;
+
+    if (hwctx->texture) {
+        mfxHDLPair *pair  =  (mfxHDLPair*)hdl;
+        pair->first  = hwctx->texture;
+        pair->second = mid;
+    } else {
+        *hdl = mid;
+    }
     return MFX_ERR_NONE;
 }
 
@@ -492,7 +538,7 @@ static int qsv_init_internal_session(AVHWFramesContext *ctx,
 
     err = MFXVideoVPP_Init(*session, &par);
     if (err != MFX_ERR_NONE) {
-        av_log(ctx, AV_LOG_VERBOSE, "Error opening the internal VPP session."
+        av_log(ctx, AV_LOG_ERROR, "Error opening the internal VPP session."
                "Surface upload/download will not be possible\n");
         MFXClose(*session);
         *session = NULL;
@@ -1074,7 +1120,7 @@ static void qsv_device_free(AVHWDeviceContext *ctx)
     av_freep(&priv);
 }
 
-static mfxIMPL choose_implementation(const char *device)
+static mfxIMPL choose_implementation(const char *device, enum AVHWDeviceType child_device_type)
 {
     static const struct {
         const char *name;
@@ -1103,6 +1149,10 @@ static mfxIMPL choose_implementation(const char *device)
             impl = strtol(device, NULL, 0);
     }
 
+    if ( (child_device_type == AV_HWDEVICE_TYPE_D3D11VA) && (impl != MFX_IMPL_SOFTWARE) ) {
+        impl |= MFX_IMPL_VIA_D3D11;
+    }
+
     return impl;
 }
 
@@ -1129,6 +1179,15 @@ static int qsv_device_derive_from_child(AVHWDeviceContext *ctx,
         }
         break;
 #endif
+#if CONFIG_D3D11VA
+    case AV_HWDEVICE_TYPE_D3D11VA:
+        {
+            AVD3D11VADeviceContext *child_device_hwctx = child_device_ctx->hwctx;
+            handle_type = MFX_HANDLE_D3D11_DEVICE;
+            handle = (mfxHDL)child_device_hwctx->device;
+        }
+        break;
+#endif
 #if CONFIG_DXVA2
     case AV_HWDEVICE_TYPE_DXVA2:
         {
@@ -1226,23 +1285,35 @@ static int qsv_device_create(AVHWDeviceContext *ctx, const char *device,
         // possible, even when multiple devices and drivers are available.
         av_dict_set(&child_device_opts, "kernel_driver", "i915", 0);
         av_dict_set(&child_device_opts, "driver",        "iHD",  0);
-    } else if (CONFIG_DXVA2)
+    } else if (CONFIG_D3D11VA) {
+        child_device_type = AV_HWDEVICE_TYPE_D3D11VA;
+        av_dict_set(&child_device_opts, "d3d11va_qsv",   "enabled",  0);
+    } else if (CONFIG_DXVA2) {
         child_device_type = AV_HWDEVICE_TYPE_DXVA2;
-    else {
+    } else {
         av_log(ctx, AV_LOG_ERROR, "No supported child device type is enabled\n");
         return AVERROR(ENOSYS);
     }
 
     ret = av_hwdevice_ctx_create(&priv->child_device_ctx, child_device_type,
                                  e ? e->value : NULL, child_device_opts, 0);
-
     av_dict_free(&child_device_opts);
-    if (ret < 0)
-        return ret;
+    if (ret < 0) {
+        if (CONFIG_DXVA2 && (child_device_type == AV_HWDEVICE_TYPE_D3D11VA)) {
+            // in case of d3d11va fail, try one more chance to create device via dxva2
+            child_device_type = AV_HWDEVICE_TYPE_DXVA2;
+            child_device_opts = NULL;
+            ret = av_hwdevice_ctx_create(&priv->child_device_ctx, child_device_type,
+                            e ? e->value : NULL, child_device_opts, 0);
+        }
+        if (ret < 0) {
+            return ret;
+        }
+    }
 
     child_device = (AVHWDeviceContext*)priv->child_device_ctx->data;
 
-    impl = choose_implementation(device);
+    impl = choose_implementation(device, child_device_type);
 
     return qsv_device_derive_from_child(ctx, impl, child_device, 0);
 }
diff --git a/libavutil/hwcontext_qsv.h b/libavutil/hwcontext_qsv.h
index b98d611cfc..f5a9691949 100644
--- a/libavutil/hwcontext_qsv.h
+++ b/libavutil/hwcontext_qsv.h
@@ -42,6 +42,7 @@ typedef struct AVQSVDeviceContext {
 typedef struct AVQSVFramesContext {
     mfxFrameSurface1 *surfaces;
     int            nb_surfaces;
+    void              *texture;
 
     /**
      * A combination of MFX_MEMTYPE_* describing the frame pool.
-- 
2.21.0



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