1 files changed, 86 insertions, 0 deletions
diff --git a/video/d3d11va.c b/video/d3d11va.c
new file mode 100644
index 0000000000..a9be571e9c
--- /dev/null
+++ b/video/d3d11va.c
@@ -0,0 +1,86 @@
+/*
+ * This file is part of mpv.
+ *
+ * mpv 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.
+ *
+ * mpv 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 mpv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "mp_image.h"
+#include "d3d11va.h"
+
+struct d3d11va_surface {
+    HMODULE d3d11_dll;
+    ID3D11Texture2D              *texture;
+    ID3D11VideoDecoderOutputView *surface;
+};
+
+ID3D11VideoDecoderOutputView *d3d11_surface_in_mp_image(struct mp_image *mpi)
+{
+    return mpi && mpi->imgfmt == IMGFMT_D3D11VA ?
+        (ID3D11VideoDecoderOutputView *)mpi->planes[3] : NULL;
+}
+
+ID3D11Texture2D *d3d11_texture_in_mp_image(struct mp_image *mpi)
+{
+    if (!mpi || mpi->imgfmt != IMGFMT_D3D11VA)
+        return NULL;
+    struct d3d11va_surface *surface = (void *)mpi->planes[0];
+    return surface->texture;
+}
+
+static void d3d11va_release_img(void *arg)
+{
+    struct d3d11va_surface *surface = arg;
+    if (surface->surface)
+        ID3D11VideoDecoderOutputView_Release(surface->surface);
+
+    if (surface->texture)
+        ID3D11Texture2D_Release(surface->texture);
+
+    if (surface->d3d11_dll)
+        FreeLibrary(surface->d3d11_dll);
+
+    talloc_free(surface);
+}
+
+struct mp_image *d3d11va_new_ref(ID3D11VideoDecoderOutputView *view,
+                                 int w, int h)
+{
+    if (!view)
+        return NULL;
+    struct d3d11va_surface *surface = talloc_zero(NULL, struct d3d11va_surface);
+
+    surface->d3d11_dll = LoadLibrary(L"d3d11.dll");
+    if (!surface->d3d11_dll)
+        goto fail;
+
+    surface->surface = view;
+    ID3D11VideoDecoderOutputView_AddRef(surface->surface);
+    ID3D11VideoDecoderOutputView_GetResource(
+        surface->surface, (ID3D11Resource **)&surface->texture);
+
+    struct mp_image *mpi = mp_image_new_custom_ref(
+        &(struct mp_image){0}, surface, d3d11va_release_img);
+    if (!mpi)
+        abort();
+
+    mp_image_setfmt(mpi, IMGFMT_D3D11VA);
+    mp_image_set_size(mpi, w, h);
+    mpi->planes[0] = (void *)surface;
+    mpi->planes[3] = (void *)surface->surface;
+
+    return mpi;
+fail:
+    d3d11va_release_img(surface);
+    return NULL;
+}