blob: 37f92b420f8af602b80b9879ceb4243d1061949d [file] [log] [blame]
// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/gpu/widevine_cdm_proxy_factory.h"
#include <comdef.h>
#include <initguid.h>
#include "base/logging.h"
#include "build/build_config.h"
#include "media/cdm/cdm_proxy.h"
#include "media/gpu/windows/d3d11_cdm_proxy.h"
namespace {
// Alias for printing HRESULT.
const auto PrintHr = logging::SystemErrorCodeToString;
// clang-format off
DEFINE_GUID(kD3DCryptoTypeIntelWidevine,
0x586e681, 0x4e14, 0x4133, 0x85, 0xe5, 0xa1, 0x4, 0x1f, 0x59, 0x9e, 0x26);
// clang-format on
} // namespace
std::unique_ptr<media::CdmProxy> CreateWidevineCdmProxy() {
Microsoft::WRL::ComPtr<ID3D11Device> device;
Microsoft::WRL::ComPtr<ID3D11VideoDevice> video_device;
// D3D11CdmProxy requires D3D_FEATURE_LEVEL_11_1.
const D3D_FEATURE_LEVEL feature_levels[] = {D3D_FEATURE_LEVEL_11_1};
// Create device and pupulate |device|.
HRESULT hresult = D3D11CreateDevice(
nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, 0, feature_levels,
arraysize(feature_levels), D3D11_SDK_VERSION, device.GetAddressOf(),
nullptr, nullptr);
if (FAILED(hresult)) {
DLOG(ERROR) << "Failed to create the D3D11Device: " << PrintHr(hresult);
return nullptr;
}
hresult = device.CopyTo(video_device.GetAddressOf());
if (FAILED(hresult)) {
DLOG(ERROR) << "Failed to get ID3D11VideoDevice: " << PrintHr(hresult);
return nullptr;
}
D3D11_VIDEO_CONTENT_PROTECTION_CAPS caps = {};
// Check whether kD3DCryptoTypeIntelWidevine is supported.
// We do not care about decoder support so just use a null decoder profile.
hresult = video_device->GetContentProtectionCaps(&kD3DCryptoTypeIntelWidevine,
nullptr, &caps);
if (FAILED(hresult)) {
DLOG(ERROR) << "Failed to GetContentProtectionCaps: " << PrintHr(hresult);
return nullptr;
}
media::D3D11CdmProxy::FunctionIdMap function_id_map{
{media::CdmProxy::Function::kIntelNegotiateCryptoSessionKeyExchange,
0x90000001}};
return std::make_unique<media::D3D11CdmProxy>(
kD3DCryptoTypeIntelWidevine, media::CdmProxy::Protocol::kIntel,
std::move(function_id_map));
}