static bool
IsSupported(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const MediaKeySystemConfiguration& aConfig,
DecoderDoctorDiagnostics* aDiagnostics)
{
if (aConfig.mInitDataType.IsEmpty() &&
aConfig.mAudioType.IsEmpty() &&
aConfig.mVideoType.IsEmpty()) {
// Not an old-style request.
return false;
}
// Backwards compatibility with legacy MediaKeySystemConfiguration method.
if (!aConfig.mInitDataType.IsEmpty() &&
!aConfig.mInitDataType.EqualsLiteral("cenc")) {
return false;
}
if (!aConfig.mAudioType.IsEmpty() &&
!IsSupportedAudio(aGMPService, aKeySystem, aConfig.mAudioType, aDiagnostics)) {
return false;
}
if (!aConfig.mVideoType.IsEmpty() &&
!IsSupportedVideo(aGMPService, aKeySystem, aConfig.mVideoType, aDiagnostics)) {
return false;
}
return true;
}
static bool
GetSupportedConfig(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const MediaKeySystemConfiguration& aCandidate,
MediaKeySystemConfiguration& aOutConfig)
{
MediaKeySystemConfiguration config;
config.mLabel = aCandidate.mLabel;
if (aCandidate.mInitDataTypes.WasPassed()) {
nsTArray<nsString> initDataTypes;
for (const nsString& candidate : aCandidate.mInitDataTypes.Value()) {
// All supported keySystems can handle "cenc" initDataType.
// ClearKey also supports "keyids" and "webm" initDataTypes.
if (candidate.EqualsLiteral("cenc")) {
initDataTypes.AppendElement(candidate);
} else if ((candidate.EqualsLiteral("keyids") ||
candidate.EqualsLiteral("webm)")) &&
aKeySystem.EqualsLiteral("org.w3.clearkey")) {
initDataTypes.AppendElement(candidate);
}
}
if (initDataTypes.IsEmpty()) {
return false;
}
config.mInitDataTypes.Construct();
config.mInitDataTypes.Value().Assign(initDataTypes);
}
if (aCandidate.mAudioCapabilities.WasPassed()) {
nsTArray<MediaKeySystemMediaCapability> caps;
for (const MediaKeySystemMediaCapability& cap : aCandidate.mAudioCapabilities.Value()) {
if (IsSupportedAudio(aGMPService, aKeySystem, cap.mContentType)) {
caps.AppendElement(cap);
}
}
if (caps.IsEmpty()) {
return false;
}
config.mAudioCapabilities.Construct();
config.mAudioCapabilities.Value().Assign(caps);
}
if (aCandidate.mVideoCapabilities.WasPassed()) {
nsTArray<MediaKeySystemMediaCapability> caps;
for (const MediaKeySystemMediaCapability& cap : aCandidate.mVideoCapabilities.Value()) {
if (IsSupportedVideo(aGMPService, aKeySystem, cap.mContentType)) {
caps.AppendElement(cap);
}
}
if (caps.IsEmpty()) {
return false;
}
config.mVideoCapabilities.Construct();
config.mVideoCapabilities.Value().Assign(caps);
}
aOutConfig = config;
return true;
}
static bool
GetSupportedConfig(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const MediaKeySystemConfiguration& aCandidate,
MediaKeySystemConfiguration& aOutConfig,
DecoderDoctorDiagnostics* aDiagnostics)
{
MediaKeySystemConfiguration config;
config.mLabel = aCandidate.mLabel;
if (aCandidate.mInitDataTypes.WasPassed()) {
nsTArray<nsString> initDataTypes;
for (const nsString& candidate : aCandidate.mInitDataTypes.Value()) {
if (IsSupportedInitDataType(candidate, aKeySystem)) {
initDataTypes.AppendElement(candidate);
}
}
if (initDataTypes.IsEmpty()) {
return false;
}
config.mInitDataTypes.Construct();
config.mInitDataTypes.Value().Assign(initDataTypes);
}
if (aCandidate.mAudioCapabilities.WasPassed()) {
nsTArray<MediaKeySystemMediaCapability> caps;
for (const MediaKeySystemMediaCapability& cap : aCandidate.mAudioCapabilities.Value()) {
if (IsSupportedAudio(aGMPService, aKeySystem, cap.mContentType, aDiagnostics)) {
caps.AppendElement(cap);
}
}
if (caps.IsEmpty()) {
return false;
}
config.mAudioCapabilities.Construct();
config.mAudioCapabilities.Value().Assign(caps);
}
if (aCandidate.mVideoCapabilities.WasPassed()) {
nsTArray<MediaKeySystemMediaCapability> caps;
for (const MediaKeySystemMediaCapability& cap : aCandidate.mVideoCapabilities.Value()) {
if (IsSupportedVideo(aGMPService, aKeySystem, cap.mContentType, aDiagnostics)) {
caps.AppendElement(cap);
}
}
if (caps.IsEmpty()) {
return false;
}
config.mVideoCapabilities.Construct();
config.mVideoCapabilities.Value().Assign(caps);
}
#if defined(MOZ_WIDEVINE_EME) && defined(XP_WIN)
// Widevine CDM doesn't include an AAC decoder. So if WMF can't decode AAC,
// and a codec wasn't specified, be conservative and reject the MediaKeys request.
if (aKeySystem.EqualsLiteral("com.widevine.alpha") &&
(!aCandidate.mAudioCapabilities.WasPassed() ||
!aCandidate.mVideoCapabilities.WasPassed()) &&
!WMFDecoderModule::HasAAC()) {
if (aDiagnostics) {
aDiagnostics->SetKeySystemIssue(
DecoderDoctorDiagnostics::eWidevineWithNoWMF);
}
return false;
}
#endif
aOutConfig = config;
return true;
}
