mirror of https://github.com/mpv-player/mpv
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "common/av_common.h"
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#include "dxva2.h"
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#include "mp_image.h"
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#include "img_format.h"
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#include "mp_image_pool.h"
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struct dxva2_surface {
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HMODULE d3dlib;
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HMODULE dxva2lib;
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IDirectXVideoDecoder *decoder;
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IDirect3DSurface9 *surface;
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};
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IDirect3DSurface9 *d3d9_surface_in_mp_image(struct mp_image *mpi)
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{
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return mpi && mpi->imgfmt == IMGFMT_DXVA2 ?
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(IDirect3DSurface9 *)mpi->planes[3] : NULL;
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}
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static void dxva2_release_img(void *arg)
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{
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struct dxva2_surface *surface = arg;
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if (surface->surface)
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IDirect3DSurface9_Release(surface->surface);
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if (surface->decoder)
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IDirectXVideoDecoder_Release(surface->decoder);
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if (surface->dxva2lib)
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FreeLibrary(surface->dxva2lib);
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if (surface->d3dlib)
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FreeLibrary(surface->d3dlib);
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talloc_free(surface);
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}
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struct mp_image *dxva2_new_ref(IDirectXVideoDecoder *decoder,
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IDirect3DSurface9 *d3d9_surface, int w, int h)
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{
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if (!decoder || !d3d9_surface)
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return NULL;
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struct dxva2_surface *surface = talloc_zero(NULL, struct dxva2_surface);
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// Add additional references to the libraries which might otherwise be freed
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// before the surface, which is observed to lead to bad behaviour
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surface->d3dlib = LoadLibrary(L"d3d9.dll");
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surface->dxva2lib = LoadLibrary(L"dxva2.dll");
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if (!surface->d3dlib || !surface->dxva2lib)
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goto fail;
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surface->surface = d3d9_surface;
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IDirect3DSurface9_AddRef(surface->surface);
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surface->decoder = decoder;
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IDirectXVideoDecoder_AddRef(surface->decoder);
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struct mp_image *mpi =
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mp_image_new_custom_ref(NULL, surface, dxva2_release_img);
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if (!mpi)
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abort();
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mp_image_setfmt(mpi, IMGFMT_DXVA2);
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mp_image_set_size(mpi, w, h);
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mpi->planes[3] = (void *)surface->surface;
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return mpi;
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fail:
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dxva2_release_img(surface);
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return NULL;
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}
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