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/*
* 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 "common/av_common.h"
#include "dxva2.h"
#include "mp_image.h"
#include "img_format.h"
#include "mp_image_pool.h"
struct dxva2_surface {
HMODULE d3dlib;
HMODULE dxva2lib;
IDirectXVideoDecoder *decoder;
IDirect3DSurface9 *surface;
};
IDirect3DSurface9 *d3d9_surface_in_mp_image(struct mp_image *mpi)
{
return mpi && mpi->imgfmt == IMGFMT_DXVA2 ?
(IDirect3DSurface9 *)mpi->planes[3] : NULL;
}
static void dxva2_release_img(void *arg)
{
struct dxva2_surface *surface = arg;
if (surface->surface)
IDirect3DSurface9_Release(surface->surface);
if (surface->decoder)
IDirectXVideoDecoder_Release(surface->decoder);
if (surface->dxva2lib)
FreeLibrary(surface->dxva2lib);
if (surface->d3dlib)
FreeLibrary(surface->d3dlib);
talloc_free(surface);
}
struct mp_image *dxva2_new_ref(IDirectXVideoDecoder *decoder,
IDirect3DSurface9 *d3d9_surface, int w, int h)
{
if (!decoder || !d3d9_surface)
return NULL;
struct dxva2_surface *surface = talloc_zero(NULL, struct dxva2_surface);
// Add additional references to the libraries which might otherwise be freed
// before the surface, which is observed to lead to bad behaviour
surface->d3dlib = LoadLibrary(L"d3d9.dll");
surface->dxva2lib = LoadLibrary(L"dxva2.dll");
if (!surface->d3dlib || !surface->dxva2lib)
goto fail;
surface->surface = d3d9_surface;
IDirect3DSurface9_AddRef(surface->surface);
surface->decoder = decoder;
IDirectXVideoDecoder_AddRef(surface->decoder);
struct mp_image *mpi = mp_image_new_custom_ref(&(struct mp_image){0},
surface, dxva2_release_img);
if (!mpi)
abort();
mp_image_setfmt(mpi, IMGFMT_DXVA2);
mp_image_set_size(mpi, w, h);
mpi->planes[3] = (void *)surface->surface;
return mpi;
fail:
dxva2_release_img(surface);
return NULL;
}
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