/* static */
bool DecoderTraits::IsSupportedInVideoDocument(const nsACString& aType)
{
return
#ifdef MOZ_OGG
IsOggType(aType) ||
#endif
#ifdef MOZ_OMX_DECODER
// We support amr inside WebApps on firefoxOS but not in general web content.
// Ensure we dont create a VideoDocument when accessing amr URLs directly.
(IsOmxSupportedType(aType) && !aType.EqualsASCII("audio/amr")) ||
#endif
#ifdef MOZ_WEBM
IsWebMType(aType) ||
#endif
#ifdef MOZ_DASH
IsDASHMPDType(aType) ||
#endif
#ifdef MOZ_GSTREAMER
IsGStreamerSupportedType(aType) ||
#endif
#ifdef MOZ_MEDIA_PLUGINS
(MediaDecoder::IsMediaPluginsEnabled() && IsMediaPluginsType(aType)) ||
#endif
#ifdef MOZ_WMF
(IsWMFSupportedType(aType) &&
Preferences::GetBool("media.windows-media-foundation.play-stand-alone", true)) ||
#endif
#ifdef MOZ_DIRECTSHOW
IsDirectShowSupportedType(aType) ||
#endif
#ifdef MOZ_APPLEMEDIA
IsAppleMediaSupportedType(aType) ||
#endif
false;
}
/* static */
bool DecoderTraits::IsSupportedInVideoDocument(const nsACString& aType)
{
return
#ifdef MOZ_OGG
IsOggType(aType) ||
#endif
#ifdef MOZ_WIDGET_GONK
IsOmxSupportedType(aType) ||
#endif
#ifdef MOZ_WEBM
IsWebMType(aType) ||
#endif
#ifdef MOZ_DASH
IsDASHMPDType(aType) ||
#endif
#ifdef MOZ_GSTREAMER
IsGStreamerSupportedType(aType) ||
#endif
#ifdef MOZ_MEDIA_PLUGINS
(MediaDecoder::IsMediaPluginsEnabled() && IsMediaPluginsType(aType)) ||
#endif
#ifdef MOZ_WMF
IsWMFSupportedType(aType) ||
#endif
false;
}
/* 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_WIDGET_GONK
if (IsOmxSupportedType(aType)) {
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_WMF
if (IsWMFSupportedType(aType)) {
decoder = new WMFDecoder();
}
#endif
NS_ENSURE_TRUE(decoder != nullptr, nullptr);
NS_ENSURE_TRUE(decoder->Init(aOwner), nullptr);
return decoder.forget();
}
/* static */
MediaDecoderReader* DecoderTraits::CreateReader(const nsACString& aType, AbstractMediaDecoder* aDecoder)
{
MediaDecoderReader* decoderReader = nullptr;
#ifdef MOZ_GSTREAMER
if (IsGStreamerSupportedType(aType)) {
decoderReader = new GStreamerReader(aDecoder);
} else
#endif
#ifdef MOZ_RAW
if (IsRawType(aType)) {
decoderReader = new RawReader(aDecoder);
} else
#endif
#ifdef MOZ_OGG
if (IsOggType(aType)) {
decoderReader = new OggReader(aDecoder);
} else
#endif
#ifdef MOZ_WAVE
if (IsWaveType(aType)) {
decoderReader = new WaveReader(aDecoder);
} else
#endif
#ifdef MOZ_WIDGET_GONK
if (IsOmxSupportedType(aType)) {
decoderReader = new MediaOmxReader(aDecoder);
} else
#endif
#ifdef MOZ_MEDIA_PLUGINS
if (MediaDecoder::IsMediaPluginsEnabled() &&
GetMediaPluginHost()->FindDecoder(aType, nullptr)) {
decoderReader = new MediaPluginReader(aDecoder, aType);
} else
#endif
#ifdef MOZ_WEBM
if (IsWebMType(aType)) {
decoderReader = new WebMReader(aDecoder);
} else
#endif
#ifdef MOZ_WMF
if (IsWMFSupportedType(aType)) {
decoderReader = new WMFReader(aDecoder);
} else
#endif
#ifdef MOZ_DASH
// The DASH decoder is not supported.
#endif
if (false) {} // dummy if to take care of the dangling else
return decoderReader;
}
/* 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.windows-media-foundation.play-stand-alone", true) ||
!Preferences::GetBool("media.play-stand-alone", true)) {
return false;
}
return
IsOggType(aType) ||
#ifdef MOZ_OMX_DECODER
// We support the formats in gB2GOnlyTypes only inside WebApps on firefoxOS
// but not in general web content. Ensure we dont create a VideoDocument
// when accessing those format URLs directly.
(IsOmxSupportedType(aType) &&
!IsB2GSupportOnlyType(aType)) ||
#endif
#ifdef MOZ_WEBM
IsWebMType(aType) ||
#endif
#ifdef MOZ_GSTREAMER
IsGStreamerSupportedType(aType) ||
#endif
#ifdef MOZ_ANDROID_OMX
(MediaDecoder::IsAndroidMediaEnabled() && IsAndroidMediaType(aType)) ||
#endif
#ifdef MOZ_FMP4
IsMP4SupportedType(aType) ||
#endif
#ifdef MOZ_WMF
IsWMFSupportedType(aType) ||
#endif
#ifdef MOZ_DIRECTSHOW
IsDirectShowSupportedType(aType) ||
#endif
#ifdef MOZ_APPLEMEDIA
IsAppleMediaSupportedType(aType) ||
#endif
#ifdef NECKO_PROTOCOL_rtsp
IsRtspSupportedType(aType) ||
#endif
false;
}
/* static */
MediaDecoderReader* DecoderTraits::CreateReader(const nsACString& aType, AbstractMediaDecoder* aDecoder)
{
MediaDecoderReader* decoderReader = nullptr;
#ifdef MOZ_GSTREAMER
if (IsGStreamerSupportedType(aType)) {
decoderReader = new GStreamerReader(aDecoder);
} else
#endif
#ifdef MOZ_RAW
if (IsRawType(aType)) {
decoderReader = new RawReader(aDecoder);
} else
#endif
#ifdef MOZ_OGG
if (IsOggType(aType)) {
decoderReader = new OggReader(aDecoder);
} else
#endif
#ifdef MOZ_WAVE
if (IsWaveType(aType)) {
decoderReader = new WaveReader(aDecoder);
} else
#endif
#ifdef MOZ_OMX_DECODER
if (IsOmxSupportedType(aType)) {
decoderReader = new MediaOmxReader(aDecoder);
} else
#endif
#ifdef MOZ_MEDIA_PLUGINS
if (MediaDecoder::IsMediaPluginsEnabled() &&
GetMediaPluginHost()->FindDecoder(aType, nullptr)) {
decoderReader = new MediaPluginReader(aDecoder, aType);
} else
#endif
#ifdef MOZ_WEBM
if (IsWebMType(aType)) {
decoderReader = new WebMReader(aDecoder);
} else
#endif
#ifdef MOZ_DIRECTSHOW
// Note: DirectShowReader is preferred for MP3, but if it's disabled we
// fallback to the WMFReader.
if (IsDirectShowSupportedType(aType)) {
decoderReader = new DirectShowReader(aDecoder);
} else
#endif
#ifdef MOZ_WMF
if (IsWMFSupportedType(aType)) {
decoderReader = new WMFReader(aDecoder);
} else
#endif
#ifdef MOZ_APPLEMEDIA
if (IsAppleMediaSupportedType(aType)) {
decoderReader = new AppleMP3Reader(aDecoder);
} else
#endif
#ifdef MOZ_DASH
// The DASH decoder is not supported.
#endif
if (false) {} // dummy if to take care of the dangling else
return decoderReader;
}
/* 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();
}
/* static */
CanPlayStatus
DecoderTraits::CanHandleMediaType(const char* aMIMEType,
bool aHaveRequestedCodecs,
const nsAString& aRequestedCodecs)
{
char const* const* codecList = nullptr;
CanPlayStatus result = CANPLAY_NO;
#ifdef MOZ_RAW
if (IsRawType(nsDependentCString(aMIMEType))) {
codecList = gRawCodecs;
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_OGG
if (IsOggType(nsDependentCString(aMIMEType))) {
codecList = MediaDecoder::IsOpusEnabled() ? gOggCodecsWithOpus : gOggCodecs;
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_WAVE
if (IsWaveType(nsDependentCString(aMIMEType))) {
codecList = gWaveCodecs;
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_WEBM
if (IsWebMType(nsDependentCString(aMIMEType))) {
codecList = gWebMCodecs;
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_GSTREAMER
if (GStreamerDecoder::CanHandleMediaType(nsDependentCString(aMIMEType),
aHaveRequestedCodecs ? &aRequestedCodecs : nullptr)) {
if (aHaveRequestedCodecs)
return CANPLAY_YES;
return CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_OMX_DECODER
if (IsOmxSupportedType(nsDependentCString(aMIMEType))) {
result = CANPLAY_MAYBE;
if (nsDependentCString(aMIMEType).EqualsASCII("audio/mpeg")) {
codecList = gMpegAudioCodecs;
} else {
codecList = gH264Codecs;
}
}
#endif
#ifdef MOZ_WMF
if (IsWMFSupportedType(nsDependentCString(aMIMEType))) {
if (!aHaveRequestedCodecs) {
return CANPLAY_MAYBE;
}
return WMFDecoder::CanPlayType(nsDependentCString(aMIMEType),
aRequestedCodecs)
? CANPLAY_YES : CANPLAY_NO;
}
#endif
#ifdef MOZ_DIRECTSHOW
if (DirectShowDecoder::GetSupportedCodecs(nsDependentCString(aMIMEType), &codecList)) {
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_APPLEMEDIA
if (IsAppleMediaSupportedType(nsDependentCString(aMIMEType), &codecList)) {
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_MEDIA_PLUGINS
if (MediaDecoder::IsMediaPluginsEnabled() &&
GetMediaPluginHost()->FindDecoder(nsDependentCString(aMIMEType), &codecList))
result = CANPLAY_MAYBE;
#endif
if (result == CANPLAY_NO || !aHaveRequestedCodecs || !codecList) {
return result;
}
// See http://www.rfc-editor.org/rfc/rfc4281.txt for the description
// of the 'codecs' parameter
nsCharSeparatedTokenizer tokenizer(aRequestedCodecs, ',');
bool expectMoreTokens = false;
while (tokenizer.hasMoreTokens()) {
const nsSubstring& token = tokenizer.nextToken();
if (!CodecListContains(codecList, token)) {
// Totally unsupported codec
return CANPLAY_NO;
}
expectMoreTokens = tokenizer.separatorAfterCurrentToken();
}
if (expectMoreTokens) {
// Last codec name was empty
return CANPLAY_NO;
}
return CANPLAY_YES;
}
/* static */
MediaDecoderReader* DecoderTraits::CreateReader(const nsACString& aType, AbstractMediaDecoder* aDecoder)
{
MediaDecoderReader* decoderReader = nullptr;
if (!aDecoder) {
return decoderReader;
}
#ifdef MOZ_FMP4
if (IsMP4SupportedType(aType)) {
decoderReader = new MP4Reader(aDecoder);
} else
#endif
#ifdef MOZ_GSTREAMER
if (IsGStreamerSupportedType(aType)) {
decoderReader = new GStreamerReader(aDecoder);
} else
#endif
#ifdef MOZ_RAW
if (IsRawType(aType)) {
decoderReader = new RawReader(aDecoder);
} else
#endif
if (IsOggType(aType)) {
decoderReader = new OggReader(aDecoder);
} else
#ifdef MOZ_WAVE
if (IsWaveType(aType)) {
decoderReader = new WaveReader(aDecoder);
} else
#endif
#ifdef MOZ_OMX_DECODER
if (IsOmxSupportedType(aType)) {
#if ANDROID_VERSION >= 18
decoderReader = MediaDecoder::IsOmxAsyncEnabled()
? static_cast<MediaDecoderReader*>(new MediaCodecReader(aDecoder))
: static_cast<MediaDecoderReader*>(new MediaOmxReader(aDecoder));
#else
decoderReader = new MediaOmxReader(aDecoder);
#endif
} else
#endif
#ifdef MOZ_ANDROID_OMX
if (MediaDecoder::IsAndroidMediaEnabled() &&
GetAndroidMediaPluginHost()->FindDecoder(aType, nullptr)) {
decoderReader = new AndroidMediaReader(aDecoder, aType);
} else
#endif
#ifdef MOZ_WEBM
if (IsWebMType(aType)) {
decoderReader = new WebMReader(aDecoder);
} else
#endif
#ifdef MOZ_DIRECTSHOW
// Note: DirectShowReader is preferred for MP3, but if it's disabled we
// fallback to the WMFReader.
if (IsDirectShowSupportedType(aType)) {
decoderReader = new DirectShowReader(aDecoder);
} else
#endif
#ifdef MOZ_WMF
if (IsWMFSupportedType(aType)) {
decoderReader = new WMFReader(aDecoder);
} else
#endif
#ifdef MOZ_APPLEMEDIA
if (IsAppleMediaSupportedType(aType)) {
decoderReader = new AppleMP3Reader(aDecoder);
} else
#endif
if (false) {} // dummy if to take care of the dangling else
return decoderReader;
}
// Instantiates but does not initialize decoder.
static
already_AddRefed<MediaDecoder>
InstantiateDecoder(const nsACString& aType, MediaDecoderOwner* aOwner)
{
nsRefPtr<MediaDecoder> decoder;
#ifdef MOZ_FMP4
if (IsMP4SupportedType(aType)) {
decoder = new MP4Decoder();
return decoder.forget();
}
#endif
#ifdef MOZ_GSTREAMER
if (IsGStreamerSupportedType(aType)) {
decoder = new GStreamerDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_RAW
if (IsRawType(aType)) {
decoder = new RawDecoder();
return decoder.forget();
}
#endif
if (IsOggType(aType)) {
decoder = new OggDecoder();
return decoder.forget();
}
#ifdef MOZ_WAVE
if (IsWaveType(aType)) {
decoder = new WaveDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_OMX_DECODER
if (IsOmxSupportedType(aType)) {
// we are discouraging Web and App developers from using those formats in
// gB2GOnlyTypes, thus we only allow them to be played on WebApps.
if (IsB2GSupportOnlyType(aType)) {
dom::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;
}
}
#if ANDROID_VERSION >= 18
decoder = MediaDecoder::IsOmxAsyncEnabled()
? static_cast<MediaDecoder*>(new MediaCodecDecoder())
: static_cast<MediaDecoder*>(new MediaOmxDecoder());
#else
decoder = new MediaOmxDecoder();
#endif
return decoder.forget();
}
#endif
#ifdef NECKO_PROTOCOL_rtsp
if (IsRtspSupportedType(aType)) {
#if ANDROID_VERSION >= 18
decoder = MediaDecoder::IsOmxAsyncEnabled()
? static_cast<MediaDecoder*>(new RtspMediaCodecDecoder())
: static_cast<MediaDecoder*>(new RtspOmxDecoder());
#else
decoder = new RtspOmxDecoder();
#endif
return decoder.forget();
}
#endif
#ifdef MOZ_ANDROID_OMX
if (MediaDecoder::IsAndroidMediaEnabled() &&
GetAndroidMediaPluginHost()->FindDecoder(aType, nullptr)) {
decoder = new AndroidMediaDecoder(aType);
return decoder.forget();
}
#endif
#ifdef MOZ_WEBM
if (IsWebMType(aType)) {
decoder = new WebMDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_DIRECTSHOW
// Note: DirectShow should come before WMF, so that we prefer DirectShow's
// MP3 support over WMF's.
if (IsDirectShowSupportedType(aType)) {
decoder = new DirectShowDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_WMF
if (IsWMFSupportedType(aType)) {
decoder = new WMFDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_APPLEMEDIA
if (IsAppleMediaSupportedType(aType)) {
decoder = new AppleDecoder();
return decoder.forget();
}
#endif
NS_ENSURE_TRUE(decoder != nullptr, nullptr);
NS_ENSURE_TRUE(decoder->Init(aOwner), nullptr);
return nullptr;
}
/* static */
CanPlayStatus
DecoderTraits::CanHandleMediaType(const char* aMIMEType,
bool aHaveRequestedCodecs,
const nsAString& aRequestedCodecs)
{
char const* const* codecList = nullptr;
CanPlayStatus result = CANPLAY_NO;
#ifdef MOZ_RAW
if (IsRawType(nsDependentCString(aMIMEType))) {
codecList = gRawCodecs;
result = CANPLAY_MAYBE;
}
#endif
if (IsOggType(nsDependentCString(aMIMEType))) {
codecList = MediaDecoder::IsOpusEnabled() ? gOggCodecsWithOpus : gOggCodecs;
result = CANPLAY_MAYBE;
}
#ifdef MOZ_WAVE
if (IsWaveType(nsDependentCString(aMIMEType))) {
codecList = gWaveCodecs;
result = CANPLAY_MAYBE;
}
#endif
#if defined(MOZ_WEBM) && !defined(MOZ_OMX_WEBM_DECODER)
if (IsWebMType(nsDependentCString(aMIMEType))) {
codecList = gWebMCodecs;
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_FMP4
if (IsMP4SupportedType(nsDependentCString(aMIMEType),
aRequestedCodecs)) {
return aHaveRequestedCodecs ? CANPLAY_YES : CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_GSTREAMER
if (GStreamerDecoder::CanHandleMediaType(nsDependentCString(aMIMEType),
aHaveRequestedCodecs ? &aRequestedCodecs : nullptr)) {
if (aHaveRequestedCodecs)
return CANPLAY_YES;
return CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_OMX_DECODER
if (IsOmxSupportedType(nsDependentCString(aMIMEType))) {
result = CANPLAY_MAYBE;
if (nsDependentCString(aMIMEType).EqualsASCII("audio/mpeg")) {
codecList = gMpegAudioCodecs;
#ifdef MOZ_OMX_WEBM_DECODER
} else if (nsDependentCString(aMIMEType).EqualsASCII("audio/webm") ||
nsDependentCString(aMIMEType).EqualsASCII("video/webm")) {
codecList = gOMXWebMCodecs;
#endif
} else {
codecList = gH264Codecs;
}
}
#endif
#ifdef MOZ_DIRECTSHOW
// Note: DirectShow should come before WMF, so that we prefer DirectShow's
// MP3 support over WMF's.
if (DirectShowDecoder::GetSupportedCodecs(nsDependentCString(aMIMEType), &codecList)) {
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_WMF
if (!Preferences::GetBool("media.fragmented-mp4.exposed", false) &&
IsWMFSupportedType(nsDependentCString(aMIMEType))) {
if (!aHaveRequestedCodecs) {
return CANPLAY_MAYBE;
}
return WMFDecoder::CanPlayType(nsDependentCString(aMIMEType),
aRequestedCodecs)
? CANPLAY_YES : CANPLAY_NO;
}
#endif
#ifdef MOZ_APPLEMEDIA
if (IsAppleMediaSupportedType(nsDependentCString(aMIMEType), &codecList)) {
result = CANPLAY_MAYBE;
}
#endif
#ifdef MOZ_ANDROID_OMX
if (MediaDecoder::IsAndroidMediaEnabled() &&
GetAndroidMediaPluginHost()->FindDecoder(nsDependentCString(aMIMEType), &codecList))
result = CANPLAY_MAYBE;
#endif
#ifdef NECKO_PROTOCOL_rtsp
if (IsRtspSupportedType(nsDependentCString(aMIMEType))) {
result = CANPLAY_MAYBE;
}
#endif
if (result == CANPLAY_NO || !aHaveRequestedCodecs || !codecList) {
return result;
}
// See http://www.rfc-editor.org/rfc/rfc4281.txt for the description
// of the 'codecs' parameter
nsCharSeparatedTokenizer tokenizer(aRequestedCodecs, ',');
bool expectMoreTokens = false;
while (tokenizer.hasMoreTokens()) {
const nsSubstring& token = tokenizer.nextToken();
if (!CodecListContains(codecList, token)) {
// Totally unsupported codec
return CANPLAY_NO;
}
expectMoreTokens = tokenizer.separatorAfterCurrentToken();
}
if (expectMoreTokens) {
// Last codec name was empty
return CANPLAY_NO;
}
return CANPLAY_YES;
}
// Instantiates but does not initialize decoder.
static
already_AddRefed<MediaDecoder>
InstantiateDecoder(const nsACString& aType, MediaDecoderOwner* aOwner)
{
nsRefPtr<MediaDecoder> decoder;
#ifdef MOZ_FMP4
if (IsMP4SupportedType(aType)) {
decoder = new MP4Decoder();
return decoder.forget();
}
#endif
#ifdef MOZ_GSTREAMER
if (IsGStreamerSupportedType(aType)) {
decoder = new GStreamerDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_RAW
if (IsRawType(aType)) {
decoder = new RawDecoder();
return decoder.forget();
}
#endif
if (IsOggType(aType)) {
decoder = new OggDecoder();
return decoder.forget();
}
#ifdef MOZ_WAVE
if (IsWaveType(aType)) {
decoder = new WaveDecoder();
return decoder.forget();
}
#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")) {
dom::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();
return decoder.forget();
}
#endif
#ifdef NECKO_PROTOCOL_rtsp
if (IsRtspSupportedType(aType)) {
decoder = new RtspOmxDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_MEDIA_PLUGINS
if (MediaDecoder::IsMediaPluginsEnabled() &&
GetMediaPluginHost()->FindDecoder(aType, nullptr)) {
decoder = new MediaPluginDecoder(aType);
return decoder.forget();
}
#endif
#ifdef MOZ_WEBM
if (IsWebMType(aType)) {
decoder = new WebMDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_DIRECTSHOW
// Note: DirectShow should come before WMF, so that we prefer DirectShow's
// MP3 support over WMF's.
if (IsDirectShowSupportedType(aType)) {
decoder = new DirectShowDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_WMF
if (IsWMFSupportedType(aType)) {
decoder = new WMFDecoder();
return decoder.forget();
}
#endif
#ifdef MOZ_APPLEMEDIA
if (IsAppleMediaSupportedType(aType)) {
decoder = new AppleDecoder();
return decoder.forget();
}
#endif
NS_ENSURE_TRUE(decoder != nullptr, nullptr);
NS_ENSURE_TRUE(decoder->Init(aOwner), nullptr);
return nullptr;
}