GMPErr
ChromiumCDMAdapter::GMPInit(const GMPPlatformAPI* aPlatformAPI)
{
GMP_LOG("ChromiumCDMAdapter::GMPInit");
sPlatform = aPlatformAPI;
if (!mLib) {
return GMPGenericErr;
}
#ifdef MOZILLA_OFFICIAL
// Note: we must call the VerifyCdmHost_0 function if it's present before
// we call the initialize function.
auto verify = reinterpret_cast<decltype(::VerifyCdmHost_0)*>(
PR_FindFunctionSymbol(mLib, STRINGIFY(VerifyCdmHost_0)));
if (verify) {
nsTArray<cdm::HostFile> files;
for (HostFileData& hostFile : mHostFiles) {
files.AppendElement(TakeToCDMHostFile(hostFile));
}
bool result = verify(files.Elements(), files.Length());
GMP_LOG("%s VerifyCdmHost_0 returned %d", __func__, result);
}
#endif
auto init = reinterpret_cast<decltype(::INITIALIZE_CDM_MODULE)*>(
PR_FindFunctionSymbol(mLib, STRINGIFY(INITIALIZE_CDM_MODULE)));
if (!init) {
return GMPGenericErr;
}
GMP_LOG(STRINGIFY(INITIALIZE_CDM_MODULE) "()");
init();
return GMPNoErr;
}
void
ChromiumCDMAdapter::GMPShutdown()
{
GMP_LOG("ChromiumCDMAdapter::GMPShutdown()");
decltype(::DeinitializeCdmModule)* deinit;
deinit = (decltype(deinit))(PR_FindFunctionSymbol(mLib, "DeinitializeCdmModule"));
if (deinit) {
GMP_LOG("DeinitializeCdmModule()");
deinit();
}
}
GMPErr
ChromiumCDMAdapter::GMPGetAPI(const char* aAPIName,
void* aHostAPI,
void** aPluginAPI,
uint32_t aDecryptorId)
{
GMP_LOG("ChromiumCDMAdapter::GMPGetAPI(%s, 0x%p, 0x%p, %u) this=0x%p",
aAPIName,
aHostAPI,
aPluginAPI,
aDecryptorId,
this);
bool isCDM9 = !strcmp(aAPIName, CHROMIUM_CDM_API);
bool isCDM8 = !strcmp(aAPIName, CHROMIUM_CDM_API_BACKWARD_COMPAT);
if (isCDM8 || isCDM9) {
auto create = reinterpret_cast<decltype(::CreateCdmInstance)*>(
PR_FindFunctionSymbol(mLib, "CreateCdmInstance"));
if (!create) {
GMP_LOG("ChromiumCDMAdapter::GMPGetAPI(%s, 0x%p, 0x%p, %u) this=0x%p "
"FAILED to find CreateCdmInstance",
aAPIName,
aHostAPI,
aPluginAPI,
aDecryptorId,
this);
return GMPGenericErr;
}
int version = isCDM8 ? cdm::ContentDecryptionModule_8::kVersion :
cdm::ContentDecryptionModule_9::kVersion;
void* cdm =
create(version,
kEMEKeySystemWidevine.get(),
kEMEKeySystemWidevine.Length(),
&ChromiumCdmHost,
aHostAPI);
if (!cdm) {
GMP_LOG("ChromiumCDMAdapter::GMPGetAPI(%s, 0x%p, 0x%p, %u) this=0x%p "
"FAILED to create cdm version %d",
aAPIName,
aHostAPI,
aPluginAPI,
aDecryptorId,
this,
version);
return GMPGenericErr;
}
GMP_LOG("cdm: 0x%p, version: %d", cdm, version);
*aPluginAPI = cdm;
}
return *aPluginAPI ? GMPNoErr : GMPNotImplementedErr;
}
PGMPVideoDecoderParent* GMPContentParent::AllocPGMPVideoDecoderParent(
const uint32_t& aDecryptorId) {
GMP_LOG("GMPContentParent::AllocPGMPVideoDecoderParent(this=%p)", this);
GMPVideoDecoderParent* vdp = new GMPVideoDecoderParent(this);
NS_ADDREF(vdp);
return vdp;
}
void GMPContentParent::ActorDestroy(ActorDestroyReason aWhy) {
GMP_LOG("GMPContentParent::ActorDestroy(this=%p, aWhy=%d)", this,
static_cast<int>(aWhy));
MOZ_ASSERT(mVideoDecoders.IsEmpty() && mVideoEncoders.IsEmpty() &&
mChromiumCDMs.IsEmpty());
NS_DispatchToCurrentThread(new ReleaseGMPContentParent(this));
}
void GMPContentParent::AddCloseBlocker() {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
++mCloseBlockerCount;
GMP_LOG(
"GMPContentParent::AddCloseBlocker(this=%p) mCloseBlockerCount=%" PRIu32,
this, mCloseBlockerCount);
}
bool GMPContentParent::DeallocPChromiumCDMParent(PChromiumCDMParent* aActor) {
GMP_LOG("GMPContentParent::DeallocPChromiumCDMParent(this=%p, aActor=%p)",
this, aActor);
ChromiumCDMParent* parent = static_cast<ChromiumCDMParent*>(aActor);
NS_RELEASE(parent);
return true;
}
bool GMPContentParent::DeallocPGMPVideoEncoderParent(
PGMPVideoEncoderParent* aActor) {
GMP_LOG("GMPContentParent::DeallocPGMPVideoEncoderParent(this=%p, aActor=%p)",
this, aActor);
GMPVideoEncoderParent* vep = static_cast<GMPVideoEncoderParent*>(aActor);
NS_RELEASE(vep);
return true;
}
void GMPContentParent::ChromiumCDMDestroyed(ChromiumCDMParent* aCDM) {
GMP_LOG("GMPContentParent::ChromiumCDMDestroyed(this=%p, aCDM=%p)", this,
aCDM);
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
MOZ_ALWAYS_TRUE(mChromiumCDMs.RemoveElement(aCDM));
CloseIfUnused();
}
void GMPContentParent::RemoveCloseBlocker() {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
--mCloseBlockerCount;
GMP_LOG(
"GMPContentParent::RemoveCloseBlocker(this=%p) "
"mCloseBlockerCount=%" PRIu32,
this, mCloseBlockerCount);
CloseIfUnused();
}
void GMPContentParent::VideoEncoderDestroyed(GMPVideoEncoderParent* aEncoder) {
GMP_LOG("GMPContentParent::VideoEncoderDestroyed(this=%p, aEncoder=%p)", this,
aEncoder);
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
// If the constructor fails, we'll get called before it's added
Unused << NS_WARN_IF(!mVideoEncoders.RemoveElement(aEncoder));
CloseIfUnused();
}
GMPContentParent::~GMPContentParent() {
GMP_LOG(
"GMPContentParent::~GMPContentParent(this=%p) mVideoDecoders.IsEmpty=%s, "
"mVideoEncoders.IsEmpty=%s, mChromiumCDMs.IsEmpty=%s, "
"mCloseBlockerCount=%" PRIu32,
this, GetBoolString(mVideoDecoders.IsEmpty()),
GetBoolString(mVideoEncoders.IsEmpty()),
GetBoolString(mChromiumCDMs.IsEmpty()), mCloseBlockerCount);
}
GMPContentParent::GMPContentParent(GMPParent* aParent)
: mParent(aParent), mPluginId(0) {
GMP_LOG("GMPContentParent::GMPContentParent(this=%p), aParent=%p", this,
aParent);
if (mParent) {
SetDisplayName(mParent->GetDisplayName());
SetPluginId(mParent->GetPluginId());
}
}
void*
ChromiumCdmHost(int aHostInterfaceVersion, void* aUserData)
{
GMP_LOG("ChromiumCdmHostFunc(%d, %p)", aHostInterfaceVersion, aUserData);
if (aHostInterfaceVersion != cdm::Host_8::kVersion &&
aHostInterfaceVersion != cdm::Host_9::kVersion) {
return nullptr;
}
return aUserData;
}
already_AddRefed<ChromiumCDMParent> GMPContentParent::GetChromiumCDM() {
GMP_LOG("GMPContentParent::GetChromiumCDM(this=%p)", this);
PChromiumCDMParent* actor = SendPChromiumCDMConstructor();
if (!actor) {
return nullptr;
}
RefPtr<ChromiumCDMParent> parent = static_cast<ChromiumCDMParent*>(actor);
// TODO: Remove parent from mChromiumCDMs in ChromiumCDMParent::Destroy().
mChromiumCDMs.AppendElement(parent);
return parent.forget();
}
nsresult GMPContentParent::GetGMPVideoEncoder(GMPVideoEncoderParent** aGMPVE) {
GMP_LOG("GMPContentParent::GetGMPVideoEncoder(this=%p)", this);
// returned with one anonymous AddRef that locks it until Destroy
PGMPVideoEncoderParent* pvep = SendPGMPVideoEncoderConstructor();
if (!pvep) {
return NS_ERROR_FAILURE;
}
GMPVideoEncoderParent* vep = static_cast<GMPVideoEncoderParent*>(pvep);
// This addref corresponds to the Proxy pointer the consumer is returned.
// It's dropped by calling Close() on the interface.
NS_ADDREF(vep);
*aGMPVE = vep;
mVideoEncoders.AppendElement(vep);
return NS_OK;
}
DWORD WINAPI
QueryDosDeviceWHook(LPCWSTR lpDeviceName, LPWSTR lpTargetPath, DWORD ucchMax)
{
if (!sDeviceNames) {
return 0;
}
std::wstring name = std::wstring(lpDeviceName);
auto iter = sDeviceNames->find(name);
if (iter == sDeviceNames->end()) {
return 0;
}
const std::wstring& device = iter->second;
if (device.size() + 1 > ucchMax) {
return 0;
}
PodCopy(lpTargetPath, device.c_str(), device.size());
lpTargetPath[device.size()] = 0;
GMP_LOG("QueryDosDeviceWHook %S -> %S", lpDeviceName, lpTargetPath);
return name.size();
}
nsCOMPtr<nsISerialEventTarget> GMPContentParent::GMPEventTarget() {
if (!mGMPEventTarget) {
GMP_LOG("GMPContentParent::GMPEventTarget(this=%p)", this);
nsCOMPtr<mozIGeckoMediaPluginService> mps =
do_GetService("@mozilla.org/gecko-media-plugin-service;1");
MOZ_ASSERT(mps);
if (!mps) {
return nullptr;
}
// Not really safe if we just grab to the mGMPEventTarget, as we don't know
// what thread we're running on and other threads may be trying to
// access this without locks! However, debug only, and primary failure
// mode outside of compiler-helped TSAN is a leak. But better would be
// to use swap() under a lock.
nsCOMPtr<nsIThread> gmpThread;
mps->GetThread(getter_AddRefs(gmpThread));
MOZ_ASSERT(gmpThread);
mGMPEventTarget = gmpThread->SerialEventTarget();
}
return mGMPEventTarget;
}
void GMPContentParent::CloseIfUnused() {
GMP_LOG(
"GMPContentParent::CloseIfUnused(this=%p) mVideoDecoders.IsEmpty=%s, "
"mVideoEncoders.IsEmpty=%s, mChromiumCDMs.IsEmpty=%s, "
"mCloseBlockerCount=%" PRIu32,
this, GetBoolString(mVideoDecoders.IsEmpty()),
GetBoolString(mVideoEncoders.IsEmpty()),
GetBoolString(mChromiumCDMs.IsEmpty()), mCloseBlockerCount);
if (mVideoDecoders.IsEmpty() && mVideoEncoders.IsEmpty() &&
mChromiumCDMs.IsEmpty() && mCloseBlockerCount == 0) {
RefPtr<GMPContentParent> toClose;
if (mParent) {
toClose = mParent->ForgetGMPContentParent();
} else {
toClose = this;
RefPtr<GeckoMediaPluginServiceChild> gmp(
GeckoMediaPluginServiceChild::GetSingleton());
gmp->RemoveGMPContentParent(toClose);
}
NS_DispatchToCurrentThread(NewRunnableMethod(
"gmp::GMPContentParent::Close", toClose, &GMPContentParent::Close));
}
}
PChromiumCDMParent* GMPContentParent::AllocPChromiumCDMParent() {
GMP_LOG("GMPContentParent::AllocPChromiumCDMParent(this=%p)", this);
ChromiumCDMParent* parent = new ChromiumCDMParent(this, GetPluginId());
NS_ADDREF(parent);
return parent;
}
PGMPVideoEncoderParent* GMPContentParent::AllocPGMPVideoEncoderParent() {
GMP_LOG("GMPContentParent::AllocPGMPVideoEncoderParent(this=%p)", this);
GMPVideoEncoderParent* vep = new GMPVideoEncoderParent(this);
NS_ADDREF(vep);
return vep;
}
