/* static */
already_AddRefed<MediaDecoder>
DecoderTraits::CreateDecoder(const nsACString& aType, MediaDecoderOwner* aOwner)
{
nsRefPtr<MediaDecoder> decoder;
#ifdef MOZ_GSTREAMER
if (IsGStreamerSupportedType(aType)) {
decoder = new GStreamerDecoder();
}
#endif
#ifdef MOZ_RAW
if (IsRawType(aType)) {
decoder = new RawDecoder();
}
#endif
#ifdef MOZ_OGG
if (IsOggType(aType)) {
decoder = new OggDecoder();
}
#endif
#ifdef MOZ_WAVE
if (IsWaveType(aType)) {
decoder = new WaveDecoder();
}
#endif
#ifdef MOZ_OMX_DECODER
if (IsOmxSupportedType(aType)) {
// AMR audio is enabled for MMS, but we are discouraging Web and App
// developers from using AMR, thus we only allow AMR to be played on WebApps.
if (aType.EqualsASCII("audio/amr")) {
HTMLMediaElement* element = aOwner->GetMediaElement();
if (!element) {
return nullptr;
}
nsIPrincipal* principal = element->NodePrincipal();
if (!principal) {
return nullptr;
}
if (principal->GetAppStatus() < nsIPrincipal::APP_STATUS_PRIVILEGED) {
return nullptr;
}
}
decoder = new MediaOmxDecoder();
}
#endif
#ifdef MOZ_MEDIA_PLUGINS
if (MediaDecoder::IsMediaPluginsEnabled() && GetMediaPluginHost()->FindDecoder(aType, NULL)) {
decoder = new MediaPluginDecoder(aType);
}
#endif
#ifdef MOZ_WEBM
if (IsWebMType(aType)) {
decoder = new WebMDecoder();
}
#endif
#ifdef MOZ_DASH
if (IsDASHMPDType(aType)) {
decoder = new DASHDecoder();
}
#endif
#ifdef MOZ_DIRECTSHOW
// Note: DirectShow decoder must come before WMFDecoder, else the pref
// "media.directshow.preferred" won't be honored.
if (IsDirectShowSupportedType(aType)) {
decoder = new DirectShowDecoder();
}
#endif
#ifdef MOZ_WMF
if (IsWMFSupportedType(aType)) {
decoder = new WMFDecoder();
}
#endif
#ifdef MOZ_APPLEMEDIA
if (IsAppleMediaSupportedType(aType)) {
decoder = new AppleDecoder();
}
#endif
NS_ENSURE_TRUE(decoder != nullptr, nullptr);
NS_ENSURE_TRUE(decoder->Init(aOwner), nullptr);
return decoder.forget();
}
