/* static */
bool DecoderTraits::IsSupportedInVideoDocument(const nsACString& aType)
{
// Forbid playing media in video documents if the user has opted
// not to, using either the legacy WMF specific pref, or the newer
// catch-all pref.
if (!Preferences::GetBool("media.wmf.play-stand-alone", true) ||
!Preferences::GetBool("media.play-stand-alone", true)) {
return false;
}
Maybe<MediaContainerType> type = MakeMediaContainerType(aType);
if (!type) {
return false;
}
return
OggDecoder::IsSupportedType(*type) ||
WebMDecoder::IsSupportedType(*type) ||
#ifdef MOZ_FMP4
MP4Decoder::IsSupportedType(*type, /* DecoderDoctorDiagnostics* */ nullptr) ||
#endif
MP3Decoder::IsSupportedType(*type) ||
ADTSDecoder::IsSupportedType(*type) ||
FlacDecoder::IsSupportedType(*type) ||
#ifdef MOZ_ANDROID_HLS_SUPPORT
HLSDecoder::IsSupportedType(*type) ||
#endif
false;
}
/* static */
bool DecoderTraits::ShouldHandleMediaType(const char* aMIMEType,
DecoderDoctorDiagnostics* aDiagnostics)
{
Maybe<MediaContainerType> containerType = MakeMediaContainerType(aMIMEType);
if (!containerType) {
return false;
}
if (WaveDecoder::IsSupportedType(*containerType)) {
// We should not return true for Wave types, since there are some
// Wave codecs actually in use in the wild that we don't support, and
// we should allow those to be handled by plugins or helper apps.
// Furthermore people can play Wave files on most platforms by other
// means.
return false;
}
// If an external plugin which can handle quicktime video is available
// (and not disabled), prefer it over native playback as there several
// codecs found in the wild that we do not handle.
if (containerType->Type() == MEDIAMIMETYPE("video/quicktime")) {
RefPtr<nsPluginHost> pluginHost = nsPluginHost::GetInst();
if (pluginHost &&
pluginHost->HavePluginForType(containerType->Type().AsString())) {
return false;
}
}
return CanHandleMediaType(*containerType, aDiagnostics) != CANPLAY_NO;
}
already_AddRefed<SourceBuffer>
MediaSource::AddSourceBuffer(const nsAString& aType, ErrorResult& aRv)
{
MOZ_ASSERT(NS_IsMainThread());
DecoderDoctorDiagnostics diagnostics;
nsresult rv = IsTypeSupported(aType, &diagnostics);
diagnostics.StoreFormatDiagnostics(GetOwner()
? GetOwner()->GetExtantDoc()
: nullptr,
aType, NS_SUCCEEDED(rv), __func__);
MSE_API("AddSourceBuffer(aType=%s)%s",
NS_ConvertUTF16toUTF8(aType).get(),
rv == NS_OK ? "" : " [not supported]");
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return nullptr;
}
if (mSourceBuffers->Length() >= MAX_SOURCE_BUFFERS) {
aRv.Throw(NS_ERROR_DOM_QUOTA_EXCEEDED_ERR);
return nullptr;
}
if (mReadyState != MediaSourceReadyState::Open) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
Maybe<MediaContainerType> containerType = MakeMediaContainerType(aType);
if (!containerType) {
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
return nullptr;
}
RefPtr<SourceBuffer> sourceBuffer = new SourceBuffer(this, *containerType);
if (!sourceBuffer) {
aRv.Throw(NS_ERROR_FAILURE); // XXX need a better error here
return nullptr;
}
mSourceBuffers->Append(sourceBuffer);
DDLINKCHILD("sourcebuffer[]", sourceBuffer.get());
MSE_DEBUG("sourceBuffer=%p", sourceBuffer.get());
return sourceBuffer.forget();
}
bool HTMLLinkElement::CheckPreloadAttrs(const nsAttrValue& aAs,
const nsAString& aType,
const nsAString& aMedia,
Document* aDocument) {
nsContentPolicyType policyType = Link::AsValueToContentPolicy(aAs);
if (policyType == nsIContentPolicy::TYPE_INVALID) {
return false;
}
// Check if media attribute is valid.
if (!aMedia.IsEmpty()) {
RefPtr<MediaList> mediaList = MediaList::Create(aMedia);
if (!mediaList->Matches(*aDocument)) {
return false;
}
}
if (aType.IsEmpty()) {
return true;
}
nsString type = nsString(aType);
ToLowerCase(type);
if (policyType == nsIContentPolicy::TYPE_OTHER) {
return true;
} else if (policyType == nsIContentPolicy::TYPE_MEDIA) {
if (aAs.GetEnumValue() == DESTINATION_TRACK) {
if (type.EqualsASCII("text/vtt")) {
return true;
} else {
return false;
}
}
Maybe<MediaContainerType> mimeType = MakeMediaContainerType(aType);
if (!mimeType) {
return false;
}
DecoderDoctorDiagnostics diagnostics;
CanPlayStatus status =
DecoderTraits::CanHandleContainerType(*mimeType, &diagnostics);
// Preload if this return CANPLAY_YES and CANPLAY_MAYBE.
if (status == CANPLAY_NO) {
return false;
} else {
return true;
}
} else if (policyType == nsIContentPolicy::TYPE_FONT) {
if (IsFontMimeType(type)) {
return true;
} else {
return false;
}
} else if (policyType == nsIContentPolicy::TYPE_IMAGE) {
if (imgLoader::SupportImageWithMimeType(
NS_ConvertUTF16toUTF8(type).get(),
AcceptedMimeTypes::IMAGES_AND_DOCUMENTS)) {
return true;
} else {
return false;
}
} else if (policyType == nsIContentPolicy::TYPE_SCRIPT) {
if (nsContentUtils::IsJavascriptMIMEType(type)) {
return true;
} else {
return false;
}
} else if (policyType == nsIContentPolicy::TYPE_STYLESHEET) {
if (type.EqualsASCII("text/css")) {
return true;
} else {
return false;
}
}
return false;
}
Maybe<MediaContainerType> MakeMediaContainerType(const char* aType) {
if (!aType) {
return Nothing();
}
return MakeMediaContainerType(nsDependentCString(aType));
}
Maybe<MediaContainerType> MakeMediaContainerType(const nsACString& aType) {
return MakeMediaContainerType(NS_ConvertUTF8toUTF16(aType));
}
