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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WMF.h"
#include "WMFDecoderModule.h"
#include "WMFVideoMFTManager.h"
#include "WMFAudioMFTManager.h"
#include "MFTDecoder.h"
#include "mozilla/DebugOnly.h"
#include "mozilla/Services.h"
#include "WMFMediaDataDecoder.h"
#include "nsAutoPtr.h"
#include "nsIWindowsRegKey.h"
#include "nsComponentManagerUtils.h"
#include "nsServiceManagerUtils.h"
#include "nsIGfxInfo.h"
#include "nsWindowsHelpers.h"
#include "GfxDriverInfo.h"
#include "mozilla/gfx/gfxVars.h"
#include "MediaInfo.h"
#include "MediaPrefs.h"
#include "prsystem.h"
#include "mozilla/Maybe.h"
#include "mozilla/StaticMutex.h"
#include "mozilla/WindowsVersion.h"
#include "MP4Decoder.h"
#include "VPXDecoder.h"
namespace mozilla {
static Atomic<bool> sDXVAEnabled(false);
WMFDecoderModule::WMFDecoderModule()
: mWMFInitialized(false)
{
}
WMFDecoderModule::~WMFDecoderModule()
{
if (mWMFInitialized) {
DebugOnly<HRESULT> hr = wmf::MFShutdown();
NS_ASSERTION(SUCCEEDED(hr), "MFShutdown failed");
}
}
/* static */
void
WMFDecoderModule::Init()
{
sDXVAEnabled = gfx::gfxVars::CanUseHardwareVideoDecoding();
}
/* static */
int
WMFDecoderModule::GetNumDecoderThreads()
{
int32_t numCores = PR_GetNumberOfProcessors();
// If we have more than 4 cores, let the decoder decide how many threads.
// On an 8 core machine, WMF chooses 4 decoder threads
const int WMF_DECODER_DEFAULT = -1;
int32_t prefThreadCount = WMF_DECODER_DEFAULT;
if (XRE_GetProcessType() != GeckoProcessType_GPU) {
prefThreadCount = MediaPrefs::PDMWMFThreadCount();
}
if (prefThreadCount != WMF_DECODER_DEFAULT) {
return std::max(prefThreadCount, 1);
} else if (numCores > 4) {
return WMF_DECODER_DEFAULT;
}
return std::max(numCores - 1, 1);
}
nsresult
WMFDecoderModule::Startup()
{
mWMFInitialized = SUCCEEDED(wmf::MFStartup());
return mWMFInitialized ? NS_OK : NS_ERROR_FAILURE;
}
already_AddRefed<MediaDataDecoder>
WMFDecoderModule::CreateVideoDecoder(const CreateDecoderParams& aParams)
{
nsAutoPtr<WMFVideoMFTManager> manager(
new WMFVideoMFTManager(aParams.VideoConfig(),
aParams.mKnowsCompositor,
aParams.mImageContainer,
sDXVAEnabled));
if (!manager->Init()) {
return nullptr;
}
RefPtr<MediaDataDecoder> decoder =
new WMFMediaDataDecoder(manager.forget(), aParams.mTaskQueue, aParams.mCallback);
return decoder.forget();
}
already_AddRefed<MediaDataDecoder>
WMFDecoderModule::CreateAudioDecoder(const CreateDecoderParams& aParams)
{
nsAutoPtr<WMFAudioMFTManager> manager(new WMFAudioMFTManager(aParams.AudioConfig()));
if (!manager->Init()) {
return nullptr;
}
RefPtr<MediaDataDecoder> decoder =
new WMFMediaDataDecoder(manager.forget(), aParams.mTaskQueue, aParams.mCallback);
return decoder.forget();
}
static bool
CanCreateMFTDecoder(const GUID& aGuid)
{
if (FAILED(wmf::MFStartup())) {
return false;
}
bool hasdecoder = false;
{
RefPtr<MFTDecoder> decoder(new MFTDecoder());
hasdecoder = SUCCEEDED(decoder->Create(aGuid));
}
wmf::MFShutdown();
return hasdecoder;
}
template<const GUID& aGuid>
static bool
CanCreateWMFDecoder()
{
static StaticMutex sMutex;
StaticMutexAutoLock lock(sMutex);
static Maybe<bool> result;
if (result.isNothing()) {
result.emplace(CanCreateMFTDecoder(aGuid));
}
return result.value();
}
static bool
IsH264DecoderBlacklisted()
{
#ifdef BLACKLIST_CRASHY_H264_DECODERS
WCHAR systemPath[MAX_PATH + 1];
if (!ConstructSystem32Path(L"msmpeg2vdec.dll", systemPath, MAX_PATH + 1)) {
// Cannot build path -> Assume it's not the blacklisted DLL.
return false;
}
DWORD zero;
DWORD infoSize = GetFileVersionInfoSizeW(systemPath, &zero);
if (infoSize == 0) {
// Can't get file info -> Assume we don't have the blacklisted DLL.
return false;
}
auto infoData = MakeUnique<unsigned char[]>(infoSize);
VS_FIXEDFILEINFO *vInfo;
UINT vInfoLen;
if (GetFileVersionInfoW(systemPath, 0, infoSize, infoData.get()) &&
VerQueryValueW(infoData.get(), L"\\", (LPVOID*)&vInfo, &vInfoLen))
{
if ((vInfo->dwFileVersionMS == ((12u << 16) | 0u))
&& ((vInfo->dwFileVersionLS == ((9200u << 16) | 16426u))
|| (vInfo->dwFileVersionLS == ((9200u << 16) | 17037u)))) {
// 12.0.9200.16426 & .17037 are blacklisted on Win64, see bug 1242343.
return true;
}
}
#endif // BLACKLIST_CRASHY_H264_DECODERS
return false;
}
/* static */ bool
WMFDecoderModule::HasH264()
{
if (IsH264DecoderBlacklisted()) {
return false;
}
return CanCreateWMFDecoder<CLSID_CMSH264DecoderMFT>();
}
/* static */ bool
WMFDecoderModule::HasAAC()
{
return CanCreateWMFDecoder<CLSID_CMSAACDecMFT>();
}
bool
WMFDecoderModule::SupportsMimeType(const nsACString& aMimeType,
DecoderDoctorDiagnostics* aDiagnostics) const
{
UniquePtr<TrackInfo> trackInfo = CreateTrackInfoWithMIMEType(aMimeType);
if (!trackInfo) {
return false;
}
return Supports(*trackInfo, aDiagnostics);
}
bool
WMFDecoderModule::Supports(const TrackInfo& aTrackInfo,
DecoderDoctorDiagnostics* aDiagnostics) const
{
// Check bit depth of video.
// XXXMC: This is here in case we want to start accepting HDR video. Do we?
// This currently defaults to a fail if video bitdepth != 8
const auto videoInfo = aTrackInfo.GetAsVideoInfo();
if (videoInfo && !SupportsBitDepth(videoInfo->mBitDepth, aDiagnostics)) {
return false;
}
if ((aTrackInfo.mMimeType.EqualsLiteral("audio/mp4a-latm") ||
aTrackInfo.mMimeType.EqualsLiteral("audio/mp4")) &&
WMFDecoderModule::HasAAC()) {
return true;
}
if (MP4Decoder::IsH264(aTrackInfo.mMimeType) && WMFDecoderModule::HasH264()) {
const VideoInfo* videoInfo = aTrackInfo.GetAsVideoInfo();
MOZ_ASSERT(videoInfo);
// Check Windows format constraints, based on:
// https://msdn.microsoft.com/en-us/library/windows/desktop/dd797815(v=vs.85).aspx
if (IsWin8OrLater()) {
// Windows >7 supports at most 4096x2304.
if (videoInfo->mImage.width > 4096 || videoInfo->mImage.height > 2304) {
return false;
}
} else {
// Windows 7 supports at most 1920x1088.
if (videoInfo->mImage.width > 1920 || videoInfo->mImage.height > 1088) {
return false;
}
}
return true;
}
if (aTrackInfo.mMimeType.EqualsLiteral("audio/mpeg") &&
CanCreateWMFDecoder<CLSID_CMP3DecMediaObject>()) {
return true;
}
if (MediaPrefs::PDMWMFVP9DecoderEnabled() && sDXVAEnabled) {
if ((VPXDecoder::IsVP8(aTrackInfo.mMimeType) ||
VPXDecoder::IsVP9(aTrackInfo.mMimeType)) &&
CanCreateWMFDecoder<CLSID_WebmMfVpxDec>()) {
return true;
}
}
// Some unsupported codec.
return false;
}
PlatformDecoderModule::ConversionRequired
WMFDecoderModule::DecoderNeedsConversion(const TrackInfo& aConfig) const
{
if (aConfig.IsVideo() && MP4Decoder::IsH264(aConfig.mMimeType)) {
return ConversionRequired::kNeedAnnexB;
} else {
return ConversionRequired::kNeedNone;
}
}
} // namespace mozilla
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