mirror of https://git.ffmpeg.org/ffmpeg.git
562 lines
18 KiB
C
562 lines
18 KiB
C
/*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 GNU
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* 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 Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include <windows.h>
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#define COBJMACROS
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#include <initguid.h>
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#include <d3d11.h>
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#include <dxgi1_2.h>
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#if HAVE_DXGIDEBUG_H
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#include <dxgidebug.h>
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#endif
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#include "avassert.h"
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#include "common.h"
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#include "hwcontext.h"
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#include "hwcontext_d3d11va.h"
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#include "hwcontext_internal.h"
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#include "imgutils.h"
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#include "pixdesc.h"
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#include "pixfmt.h"
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#include "thread.h"
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typedef HRESULT(WINAPI *PFN_CREATE_DXGI_FACTORY)(REFIID riid, void **ppFactory);
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static AVOnce functions_loaded = AV_ONCE_INIT;
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static PFN_CREATE_DXGI_FACTORY mCreateDXGIFactory;
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static PFN_D3D11_CREATE_DEVICE mD3D11CreateDevice;
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static av_cold void load_functions(void)
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{
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#if !HAVE_UWP
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// We let these "leak" - this is fine, as unloading has no great benefit, and
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// Windows will mark a DLL as loaded forever if its internal refcount overflows
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// from too many LoadLibrary calls.
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HANDLE d3dlib, dxgilib;
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d3dlib = LoadLibrary("d3d11.dll");
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dxgilib = LoadLibrary("dxgi.dll");
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if (!d3dlib || !dxgilib)
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return;
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mD3D11CreateDevice = (PFN_D3D11_CREATE_DEVICE) GetProcAddress(d3dlib, "D3D11CreateDevice");
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mCreateDXGIFactory = (PFN_CREATE_DXGI_FACTORY) GetProcAddress(dxgilib, "CreateDXGIFactory");
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#else
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// In UWP (which lacks LoadLibrary), CreateDXGIFactory isn't available,
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// only CreateDXGIFactory1
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mD3D11CreateDevice = (PFN_D3D11_CREATE_DEVICE) D3D11CreateDevice;
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mCreateDXGIFactory = (PFN_CREATE_DXGI_FACTORY) CreateDXGIFactory1;
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#endif
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}
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typedef struct D3D11VAFramesContext {
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int nb_surfaces_used;
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DXGI_FORMAT format;
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ID3D11Texture2D *staging_texture;
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} D3D11VAFramesContext;
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static const struct {
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DXGI_FORMAT d3d_format;
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enum AVPixelFormat pix_fmt;
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} supported_formats[] = {
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{ DXGI_FORMAT_NV12, AV_PIX_FMT_NV12 },
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{ DXGI_FORMAT_P010, AV_PIX_FMT_P010 },
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// Special opaque formats. The pix_fmt is merely a place holder, as the
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// opaque format cannot be accessed directly.
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{ DXGI_FORMAT_420_OPAQUE, AV_PIX_FMT_YUV420P },
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};
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static void d3d11va_default_lock(void *ctx)
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{
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WaitForSingleObjectEx(ctx, INFINITE, FALSE);
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}
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static void d3d11va_default_unlock(void *ctx)
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{
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ReleaseMutex(ctx);
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}
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static void d3d11va_frames_uninit(AVHWFramesContext *ctx)
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{
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AVD3D11VAFramesContext *frames_hwctx = ctx->hwctx;
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D3D11VAFramesContext *s = ctx->internal->priv;
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if (frames_hwctx->texture)
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ID3D11Texture2D_Release(frames_hwctx->texture);
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frames_hwctx->texture = NULL;
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if (s->staging_texture)
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ID3D11Texture2D_Release(s->staging_texture);
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s->staging_texture = NULL;
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}
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static void free_texture(void *opaque, uint8_t *data)
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{
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ID3D11Texture2D_Release((ID3D11Texture2D *)opaque);
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}
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static AVBufferRef *wrap_texture_buf(ID3D11Texture2D *tex, int index)
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{
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AVBufferRef *buf;
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AVD3D11FrameDescriptor *desc = av_mallocz(sizeof(*desc));
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if (!desc) {
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ID3D11Texture2D_Release(tex);
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return NULL;
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}
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desc->texture = tex;
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desc->index = index;
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buf = av_buffer_create((uint8_t *)desc, sizeof(desc), free_texture, tex, 0);
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if (!buf) {
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ID3D11Texture2D_Release(tex);
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av_free(desc);
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return NULL;
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}
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return buf;
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}
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static AVBufferRef *d3d11va_alloc_single(AVHWFramesContext *ctx)
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{
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D3D11VAFramesContext *s = ctx->internal->priv;
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AVD3D11VAFramesContext *hwctx = ctx->hwctx;
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AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx;
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HRESULT hr;
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ID3D11Texture2D *tex;
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D3D11_TEXTURE2D_DESC texDesc = {
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.Width = ctx->width,
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.Height = ctx->height,
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.MipLevels = 1,
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.Format = s->format,
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.SampleDesc = { .Count = 1 },
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.ArraySize = 1,
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.Usage = D3D11_USAGE_DEFAULT,
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.BindFlags = hwctx->BindFlags,
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.MiscFlags = hwctx->MiscFlags,
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};
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hr = ID3D11Device_CreateTexture2D(device_hwctx->device, &texDesc, NULL, &tex);
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if (FAILED(hr)) {
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av_log(ctx, AV_LOG_ERROR, "Could not create the texture (%lx)\n", (long)hr);
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return NULL;
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}
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return wrap_texture_buf(tex, 0);
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}
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static AVBufferRef *d3d11va_pool_alloc(void *opaque, int size)
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{
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AVHWFramesContext *ctx = (AVHWFramesContext*)opaque;
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D3D11VAFramesContext *s = ctx->internal->priv;
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AVD3D11VAFramesContext *hwctx = ctx->hwctx;
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D3D11_TEXTURE2D_DESC texDesc;
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if (!hwctx->texture)
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return d3d11va_alloc_single(ctx);
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ID3D11Texture2D_GetDesc(hwctx->texture, &texDesc);
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if (s->nb_surfaces_used >= texDesc.ArraySize) {
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av_log(ctx, AV_LOG_ERROR, "Static surface pool size exceeded.\n");
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return NULL;
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}
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ID3D11Texture2D_AddRef(hwctx->texture);
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return wrap_texture_buf(hwctx->texture, s->nb_surfaces_used++);
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}
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static int d3d11va_frames_init(AVHWFramesContext *ctx)
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{
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AVD3D11VAFramesContext *hwctx = ctx->hwctx;
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AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx;
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D3D11VAFramesContext *s = ctx->internal->priv;
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int i;
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HRESULT hr;
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D3D11_TEXTURE2D_DESC texDesc;
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for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
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if (ctx->sw_format == supported_formats[i].pix_fmt) {
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s->format = supported_formats[i].d3d_format;
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break;
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}
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}
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if (i == FF_ARRAY_ELEMS(supported_formats)) {
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av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
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av_get_pix_fmt_name(ctx->sw_format));
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return AVERROR(EINVAL);
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}
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texDesc = (D3D11_TEXTURE2D_DESC){
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.Width = ctx->width,
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.Height = ctx->height,
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.MipLevels = 1,
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.Format = s->format,
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.SampleDesc = { .Count = 1 },
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.ArraySize = ctx->initial_pool_size,
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.Usage = D3D11_USAGE_DEFAULT,
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.BindFlags = hwctx->BindFlags,
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.MiscFlags = hwctx->MiscFlags,
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};
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if (hwctx->texture) {
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D3D11_TEXTURE2D_DESC texDesc2;
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ID3D11Texture2D_GetDesc(hwctx->texture, &texDesc2);
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if (texDesc.Width != texDesc2.Width ||
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texDesc.Height != texDesc2.Height ||
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texDesc.Format != texDesc2.Format) {
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av_log(ctx, AV_LOG_ERROR, "User-provided texture has mismatching parameters\n");
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return AVERROR(EINVAL);
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}
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} else if (texDesc.ArraySize > 0) {
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hr = ID3D11Device_CreateTexture2D(device_hwctx->device, &texDesc, NULL, &hwctx->texture);
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if (FAILED(hr)) {
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av_log(ctx, AV_LOG_ERROR, "Could not create the texture (%lx)\n", (long)hr);
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return AVERROR_UNKNOWN;
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}
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}
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ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(AVD3D11FrameDescriptor),
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ctx, d3d11va_pool_alloc, NULL);
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if (!ctx->internal->pool_internal)
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return AVERROR(ENOMEM);
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return 0;
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}
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static int d3d11va_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
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{
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AVD3D11FrameDescriptor *desc;
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frame->buf[0] = av_buffer_pool_get(ctx->pool);
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if (!frame->buf[0])
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return AVERROR(ENOMEM);
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desc = (AVD3D11FrameDescriptor *)frame->buf[0]->data;
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frame->data[0] = (uint8_t *)desc->texture;
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frame->data[1] = (uint8_t *)desc->index;
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frame->format = AV_PIX_FMT_D3D11;
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frame->width = ctx->width;
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frame->height = ctx->height;
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return 0;
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}
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static int d3d11va_transfer_get_formats(AVHWFramesContext *ctx,
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enum AVHWFrameTransferDirection dir,
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enum AVPixelFormat **formats)
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{
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D3D11VAFramesContext *s = ctx->internal->priv;
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enum AVPixelFormat *fmts;
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fmts = av_malloc_array(2, sizeof(*fmts));
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if (!fmts)
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return AVERROR(ENOMEM);
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fmts[0] = ctx->sw_format;
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fmts[1] = AV_PIX_FMT_NONE;
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// Don't signal support for opaque formats. Actual access would fail.
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if (s->format == DXGI_FORMAT_420_OPAQUE)
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fmts[0] = AV_PIX_FMT_NONE;
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*formats = fmts;
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return 0;
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}
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static int d3d11va_create_staging_texture(AVHWFramesContext *ctx)
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{
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AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx;
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D3D11VAFramesContext *s = ctx->internal->priv;
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HRESULT hr;
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D3D11_TEXTURE2D_DESC texDesc = {
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.Width = ctx->width,
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.Height = ctx->height,
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.MipLevels = 1,
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.Format = s->format,
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.SampleDesc = { .Count = 1 },
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.ArraySize = 1,
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.Usage = D3D11_USAGE_STAGING,
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.CPUAccessFlags = D3D11_CPU_ACCESS_READ | D3D11_CPU_ACCESS_WRITE,
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};
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hr = ID3D11Device_CreateTexture2D(device_hwctx->device, &texDesc, NULL, &s->staging_texture);
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if (FAILED(hr)) {
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av_log(ctx, AV_LOG_ERROR, "Could not create the staging texture (%lx)\n", (long)hr);
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return AVERROR_UNKNOWN;
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}
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return 0;
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}
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static void fill_texture_ptrs(uint8_t *data[4], int linesize[4],
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AVHWFramesContext *ctx,
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D3D11_TEXTURE2D_DESC *desc,
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D3D11_MAPPED_SUBRESOURCE *map)
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{
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int i;
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for (i = 0; i < 4; i++)
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linesize[i] = map->RowPitch;
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av_image_fill_pointers(data, ctx->sw_format, desc->Height,
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(uint8_t*)map->pData, linesize);
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}
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static int d3d11va_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
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const AVFrame *src)
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{
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AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx;
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D3D11VAFramesContext *s = ctx->internal->priv;
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int download = src->format == AV_PIX_FMT_D3D11;
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const AVFrame *frame = download ? src : dst;
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const AVFrame *other = download ? dst : src;
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// (The interface types are compatible.)
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ID3D11Resource *texture = (ID3D11Resource *)(ID3D11Texture2D *)frame->data[0];
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int index = (intptr_t)frame->data[1];
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ID3D11Resource *staging;
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int w = FFMIN(dst->width, src->width);
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int h = FFMIN(dst->height, src->height);
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uint8_t *map_data[4];
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int map_linesize[4];
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D3D11_TEXTURE2D_DESC desc;
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D3D11_MAPPED_SUBRESOURCE map;
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HRESULT hr;
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if (frame->hw_frames_ctx->data != (uint8_t *)ctx || other->format != ctx->sw_format)
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return AVERROR(EINVAL);
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device_hwctx->lock(device_hwctx->lock_ctx);
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if (!s->staging_texture) {
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int res = d3d11va_create_staging_texture(ctx);
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if (res < 0)
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return res;
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}
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staging = (ID3D11Resource *)s->staging_texture;
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ID3D11Texture2D_GetDesc(s->staging_texture, &desc);
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if (download) {
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ID3D11DeviceContext_CopySubresourceRegion(device_hwctx->device_context,
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staging, 0, 0, 0, 0,
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texture, index, NULL);
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hr = ID3D11DeviceContext_Map(device_hwctx->device_context,
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staging, 0, D3D11_MAP_READ, 0, &map);
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if (FAILED(hr))
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goto map_failed;
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fill_texture_ptrs(map_data, map_linesize, ctx, &desc, &map);
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av_image_copy(dst->data, dst->linesize, map_data, map_linesize,
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ctx->sw_format, w, h);
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ID3D11DeviceContext_Unmap(device_hwctx->device_context, staging, 0);
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} else {
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hr = ID3D11DeviceContext_Map(device_hwctx->device_context,
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staging, 0, D3D11_MAP_WRITE, 0, &map);
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if (FAILED(hr))
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goto map_failed;
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fill_texture_ptrs(map_data, map_linesize, ctx, &desc, &map);
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av_image_copy(map_data, map_linesize, src->data, src->linesize,
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ctx->sw_format, w, h);
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ID3D11DeviceContext_Unmap(device_hwctx->device_context, staging, 0);
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ID3D11DeviceContext_CopySubresourceRegion(device_hwctx->device_context,
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texture, index, 0, 0, 0,
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staging, 0, NULL);
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}
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device_hwctx->unlock(device_hwctx->lock_ctx);
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return 0;
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map_failed:
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av_log(ctx, AV_LOG_ERROR, "Unable to lock D3D11VA surface (%lx)\n", (long)hr);
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device_hwctx->unlock(device_hwctx->lock_ctx);
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return AVERROR_UNKNOWN;
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}
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static int d3d11va_device_init(AVHWDeviceContext *hwdev)
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{
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AVD3D11VADeviceContext *device_hwctx = hwdev->hwctx;
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HRESULT hr;
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if (!device_hwctx->lock) {
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device_hwctx->lock_ctx = CreateMutex(NULL, 0, NULL);
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if (device_hwctx->lock_ctx == INVALID_HANDLE_VALUE) {
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av_log(NULL, AV_LOG_ERROR, "Failed to create a mutex\n");
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return AVERROR(EINVAL);
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}
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device_hwctx->lock = d3d11va_default_lock;
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device_hwctx->unlock = d3d11va_default_unlock;
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}
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if (!device_hwctx->device_context) {
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ID3D11Device_GetImmediateContext(device_hwctx->device, &device_hwctx->device_context);
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if (!device_hwctx->device_context)
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return AVERROR_UNKNOWN;
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}
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if (!device_hwctx->video_device) {
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hr = ID3D11DeviceContext_QueryInterface(device_hwctx->device, &IID_ID3D11VideoDevice,
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(void **)&device_hwctx->video_device);
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if (FAILED(hr))
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return AVERROR_UNKNOWN;
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}
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if (!device_hwctx->video_context) {
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hr = ID3D11DeviceContext_QueryInterface(device_hwctx->device_context, &IID_ID3D11VideoContext,
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(void **)&device_hwctx->video_context);
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if (FAILED(hr))
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return AVERROR_UNKNOWN;
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}
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return 0;
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}
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static void d3d11va_device_uninit(AVHWDeviceContext *hwdev)
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{
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AVD3D11VADeviceContext *device_hwctx = hwdev->hwctx;
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if (device_hwctx->device)
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ID3D11Device_Release(device_hwctx->device);
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if (device_hwctx->device_context)
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ID3D11DeviceContext_Release(device_hwctx->device_context);
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if (device_hwctx->video_device)
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ID3D11VideoDevice_Release(device_hwctx->video_device);
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if (device_hwctx->video_context)
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ID3D11VideoContext_Release(device_hwctx->video_context);
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if (device_hwctx->lock == d3d11va_default_lock)
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CloseHandle(device_hwctx->lock_ctx);
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}
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static int d3d11va_device_create(AVHWDeviceContext *ctx, const char *device,
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AVDictionary *opts, int flags)
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{
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AVD3D11VADeviceContext *device_hwctx = ctx->hwctx;
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HRESULT hr;
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IDXGIAdapter *pAdapter = NULL;
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ID3D10Multithread *pMultithread;
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UINT creationFlags = D3D11_CREATE_DEVICE_VIDEO_SUPPORT;
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int is_debug = !!av_dict_get(opts, "debug", NULL, 0);
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int ret;
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// (On UWP we can't check this.)
|
|
#if !HAVE_UWP
|
|
if (!LoadLibrary("d3d11_1sdklayers.dll"))
|
|
is_debug = 0;
|
|
#endif
|
|
|
|
if (is_debug)
|
|
creationFlags |= D3D11_CREATE_DEVICE_DEBUG;
|
|
|
|
if ((ret = ff_thread_once(&functions_loaded, load_functions)) != 0)
|
|
return AVERROR_UNKNOWN;
|
|
if (!mD3D11CreateDevice || !mCreateDXGIFactory) {
|
|
av_log(ctx, AV_LOG_ERROR, "Failed to load D3D11 library or its functions\n");
|
|
return AVERROR_UNKNOWN;
|
|
}
|
|
|
|
if (device) {
|
|
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);
|
|
}
|
|
}
|
|
|
|
hr = mD3D11CreateDevice(pAdapter, pAdapter ? D3D_DRIVER_TYPE_UNKNOWN : D3D_DRIVER_TYPE_HARDWARE, NULL, creationFlags, NULL, 0,
|
|
D3D11_SDK_VERSION, &device_hwctx->device, NULL, NULL);
|
|
if (pAdapter)
|
|
IDXGIAdapter_Release(pAdapter);
|
|
if (FAILED(hr)) {
|
|
av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device (%lx)\n", (long)hr);
|
|
return AVERROR_UNKNOWN;
|
|
}
|
|
|
|
hr = ID3D11Device_QueryInterface(device_hwctx->device, &IID_ID3D10Multithread, (void **)&pMultithread);
|
|
if (SUCCEEDED(hr)) {
|
|
ID3D10Multithread_SetMultithreadProtected(pMultithread, TRUE);
|
|
ID3D10Multithread_Release(pMultithread);
|
|
}
|
|
|
|
#if !HAVE_UWP && HAVE_DXGIDEBUG_H
|
|
if (is_debug) {
|
|
HANDLE dxgidebug_dll = LoadLibrary("dxgidebug.dll");
|
|
if (dxgidebug_dll) {
|
|
HRESULT (WINAPI * pf_DXGIGetDebugInterface)(const GUID *riid, void **ppDebug)
|
|
= (void *)GetProcAddress(dxgidebug_dll, "DXGIGetDebugInterface");
|
|
if (pf_DXGIGetDebugInterface) {
|
|
IDXGIDebug *dxgi_debug = NULL;
|
|
hr = pf_DXGIGetDebugInterface(&IID_IDXGIDebug, (void**)&dxgi_debug);
|
|
if (SUCCEEDED(hr) && dxgi_debug)
|
|
IDXGIDebug_ReportLiveObjects(dxgi_debug, DXGI_DEBUG_ALL, DXGI_DEBUG_RLO_ALL);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
const HWContextType ff_hwcontext_type_d3d11va = {
|
|
.type = AV_HWDEVICE_TYPE_D3D11VA,
|
|
.name = "D3D11VA",
|
|
|
|
.device_hwctx_size = sizeof(AVD3D11VADeviceContext),
|
|
.frames_hwctx_size = sizeof(AVD3D11VAFramesContext),
|
|
.frames_priv_size = sizeof(D3D11VAFramesContext),
|
|
|
|
.device_create = d3d11va_device_create,
|
|
.device_init = d3d11va_device_init,
|
|
.device_uninit = d3d11va_device_uninit,
|
|
.frames_init = d3d11va_frames_init,
|
|
.frames_uninit = d3d11va_frames_uninit,
|
|
.frames_get_buffer = d3d11va_get_buffer,
|
|
.transfer_get_formats = d3d11va_transfer_get_formats,
|
|
.transfer_data_to = d3d11va_transfer_data,
|
|
.transfer_data_from = d3d11va_transfer_data,
|
|
|
|
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_D3D11, AV_PIX_FMT_NONE },
|
|
};
|