michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "DecoderTraits.h"
michael@0: #include "MediaDecoder.h"
michael@0: #include "nsCharSeparatedTokenizer.h"
michael@0: #include "mozilla/Preferences.h"
michael@0: 
michael@0: #ifdef MOZ_MEDIA_PLUGINS
michael@0: #include "MediaPluginHost.h"
michael@0: #endif
michael@0: 
michael@0: #include "OggDecoder.h"
michael@0: #include "OggReader.h"
michael@0: #ifdef MOZ_WAVE
michael@0: #include "WaveDecoder.h"
michael@0: #include "WaveReader.h"
michael@0: #endif
michael@0: #ifdef MOZ_WEBM
michael@0: #include "WebMDecoder.h"
michael@0: #include "WebMReader.h"
michael@0: #endif
michael@0: #ifdef MOZ_RAW
michael@0: #include "RawDecoder.h"
michael@0: #include "RawReader.h"
michael@0: #endif
michael@0: #ifdef MOZ_GSTREAMER
michael@0: #include "GStreamerDecoder.h"
michael@0: #include "GStreamerReader.h"
michael@0: #endif
michael@0: #ifdef MOZ_MEDIA_PLUGINS
michael@0: #include "MediaPluginHost.h"
michael@0: #include "MediaPluginDecoder.h"
michael@0: #include "MediaPluginReader.h"
michael@0: #include "MediaPluginHost.h"
michael@0: #endif
michael@0: #ifdef MOZ_OMX_DECODER
michael@0: #include "MediaOmxDecoder.h"
michael@0: #include "MediaOmxReader.h"
michael@0: #include "nsIPrincipal.h"
michael@0: #include "mozilla/dom/HTMLMediaElement.h"
michael@0: #endif
michael@0: #ifdef NECKO_PROTOCOL_rtsp
michael@0: #include "RtspOmxDecoder.h"
michael@0: #include "RtspOmxReader.h"
michael@0: #endif
michael@0: #ifdef MOZ_WMF
michael@0: #include "WMFDecoder.h"
michael@0: #include "WMFReader.h"
michael@0: #endif
michael@0: #ifdef MOZ_DIRECTSHOW
michael@0: #include "DirectShowDecoder.h"
michael@0: #include "DirectShowReader.h"
michael@0: #endif
michael@0: #ifdef MOZ_APPLEMEDIA
michael@0: #include "AppleDecoder.h"
michael@0: #include "AppleMP3Reader.h"
michael@0: #endif
michael@0: #ifdef MOZ_FMP4
michael@0: #include "MP4Reader.h"
michael@0: #include "MP4Decoder.h"
michael@0: #endif
michael@0: 
michael@0: namespace mozilla
michael@0: {
michael@0: 
michael@0: template <class String>
michael@0: static bool
michael@0: CodecListContains(char const *const * aCodecs, const String& aCodec)
michael@0: {
michael@0:   for (int32_t i = 0; aCodecs[i]; ++i) {
michael@0:     if (aCodec.EqualsASCII(aCodecs[i]))
michael@0:       return true;
michael@0:   }
michael@0:   return false;
michael@0: }
michael@0: 
michael@0: #ifdef MOZ_RAW
michael@0: static const char* gRawTypes[3] = {
michael@0:   "video/x-raw",
michael@0:   "video/x-raw-yuv",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static const char* gRawCodecs[1] = {
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static bool
michael@0: IsRawType(const nsACString& aType)
michael@0: {
michael@0:   if (!MediaDecoder::IsRawEnabled()) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   return CodecListContains(gRawTypes, aType);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: // See http://www.rfc-editor.org/rfc/rfc5334.txt for the definitions
michael@0: // of Ogg media types and codec types
michael@0: static const char* const gOggTypes[4] = {
michael@0:   "video/ogg",
michael@0:   "audio/ogg",
michael@0:   "application/ogg",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static char const *const gOggCodecs[3] = {
michael@0:   "vorbis",
michael@0:   "theora",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static char const *const gOggCodecsWithOpus[4] = {
michael@0:   "vorbis",
michael@0:   "opus",
michael@0:   "theora",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static bool
michael@0: IsOggType(const nsACString& aType)
michael@0: {
michael@0:   if (!MediaDecoder::IsOggEnabled()) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   return CodecListContains(gOggTypes, aType);
michael@0: }
michael@0: 
michael@0: #ifdef MOZ_WAVE
michael@0: // See http://www.rfc-editor.org/rfc/rfc2361.txt for the definitions
michael@0: // of WAVE media types and codec types. However, the audio/vnd.wave
michael@0: // MIME type described there is not used.
michael@0: static const char* const gWaveTypes[5] = {
michael@0:   "audio/x-wav",
michael@0:   "audio/wav",
michael@0:   "audio/wave",
michael@0:   "audio/x-pn-wav",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static char const *const gWaveCodecs[2] = {
michael@0:   "1", // Microsoft PCM Format
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static bool
michael@0: IsWaveType(const nsACString& aType)
michael@0: {
michael@0:   if (!MediaDecoder::IsWaveEnabled()) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   return CodecListContains(gWaveTypes, aType);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: #ifdef MOZ_WEBM
michael@0: static const char* const gWebMTypes[3] = {
michael@0:   "video/webm",
michael@0:   "audio/webm",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static char const *const gWebMCodecs[7] = {
michael@0:   "vp8",
michael@0:   "vp8.0",
michael@0:   "vp9",
michael@0:   "vp9.0",
michael@0:   "vorbis",
michael@0:   "opus",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static bool
michael@0: IsWebMType(const nsACString& aType)
michael@0: {
michael@0:   if (!MediaDecoder::IsWebMEnabled()) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   return CodecListContains(gWebMTypes, aType);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: #ifdef MOZ_GSTREAMER
michael@0: static bool
michael@0: IsGStreamerSupportedType(const nsACString& aMimeType)
michael@0: {
michael@0:   if (!MediaDecoder::IsGStreamerEnabled())
michael@0:     return false;
michael@0: 
michael@0: #ifdef MOZ_WEBM
michael@0:   if (IsWebMType(aMimeType) && !Preferences::GetBool("media.prefer-gstreamer", false))
michael@0:     return false;
michael@0: #endif
michael@0:   if (IsOggType(aMimeType) && !Preferences::GetBool("media.prefer-gstreamer", false))
michael@0:     return false;
michael@0: 
michael@0:   return GStreamerDecoder::CanHandleMediaType(aMimeType, nullptr);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: #ifdef MOZ_OMX_DECODER
michael@0: static const char* const gOmxTypes[7] = {
michael@0:   "audio/mpeg",
michael@0:   "audio/mp4",
michael@0:   "audio/amr",
michael@0:   "video/mp4",
michael@0:   "video/3gpp",
michael@0:   "video/quicktime",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static bool
michael@0: IsOmxSupportedType(const nsACString& aType)
michael@0: {
michael@0:   if (!MediaDecoder::IsOmxEnabled()) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   return CodecListContains(gOmxTypes, aType);
michael@0: }
michael@0: 
michael@0: static char const *const gH264Codecs[9] = {
michael@0:   "avc1.42E01E",  // H.264 Constrained Baseline Profile Level 3.0
michael@0:   "avc1.42001E",  // H.264 Baseline Profile Level 3.0
michael@0:   "avc1.58A01E",  // H.264 Extended Profile Level 3.0
michael@0:   "avc1.4D401E",  // H.264 Main Profile Level 3.0
michael@0:   "avc1.64001E",  // H.264 High Profile Level 3.0
michael@0:   "avc1.64001F",  // H.264 High Profile Level 3.1
michael@0:   "mp4v.20.3",    // 3GPP
michael@0:   "mp4a.40.2",    // AAC-LC
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static char const *const gMpegAudioCodecs[2] = {
michael@0:   "mp3",          // MP3
michael@0:   nullptr
michael@0: };
michael@0: #endif
michael@0: 
michael@0: #ifdef NECKO_PROTOCOL_rtsp
michael@0: static const char* const gRtspTypes[2] = {
michael@0:     "RTSP",
michael@0:     nullptr
michael@0: };
michael@0: 
michael@0: static bool
michael@0: IsRtspSupportedType(const nsACString& aMimeType)
michael@0: {
michael@0:   return MediaDecoder::IsRtspEnabled() &&
michael@0:     CodecListContains(gRtspTypes, aMimeType);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: /* static */
michael@0: bool DecoderTraits::DecoderWaitsForOnConnected(const nsACString& aMimeType) {
michael@0: #ifdef NECKO_PROTOCOL_rtsp
michael@0:   return CodecListContains(gRtspTypes, aMimeType);
michael@0: #else
michael@0:   return false;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: #ifdef MOZ_MEDIA_PLUGINS
michael@0: static bool
michael@0: IsMediaPluginsType(const nsACString& aType)
michael@0: {
michael@0:   if (!MediaDecoder::IsMediaPluginsEnabled()) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   static const char* supportedTypes[] = {
michael@0:     "audio/mpeg", "audio/mp4", "video/mp4", nullptr
michael@0:   };
michael@0:   return CodecListContains(supportedTypes, aType);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: #ifdef MOZ_WMF
michael@0: static bool
michael@0: IsWMFSupportedType(const nsACString& aType)
michael@0: {
michael@0:   return WMFDecoder::CanPlayType(aType, NS_LITERAL_STRING(""));
michael@0: }
michael@0: #endif
michael@0: 
michael@0: #ifdef MOZ_DIRECTSHOW
michael@0: static bool
michael@0: IsDirectShowSupportedType(const nsACString& aType)
michael@0: {
michael@0:   return DirectShowDecoder::GetSupportedCodecs(aType, nullptr);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: #ifdef MOZ_FMP4
michael@0: static bool
michael@0: IsMP4SupportedType(const nsACString& aType)
michael@0: {
michael@0:   return Preferences::GetBool("media.fragmented-mp4.exposed", false) &&
michael@0:          MP4Decoder::GetSupportedCodecs(aType, nullptr);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: #ifdef MOZ_APPLEMEDIA
michael@0: static const char * const gAppleMP3Types[] = {
michael@0:   "audio/mp3",
michael@0:   "audio/mpeg",
michael@0:   nullptr,
michael@0: };
michael@0: 
michael@0: static const char * const gAppleMP3Codecs[] = {
michael@0:   "mp3",
michael@0:   nullptr
michael@0: };
michael@0: 
michael@0: static bool
michael@0: IsAppleMediaSupportedType(const nsACString& aType,
michael@0:                      const char * const ** aCodecs = nullptr)
michael@0: {
michael@0:   if (MediaDecoder::IsAppleMP3Enabled()
michael@0:       && CodecListContains(gAppleMP3Types, aType)) {
michael@0: 
michael@0:     if (aCodecs) {
michael@0:       *aCodecs = gAppleMP3Codecs;
michael@0:     }
michael@0: 
michael@0:     return true;
michael@0:   }
michael@0: 
michael@0:   // TODO MP4
michael@0: 
michael@0:   return false;
michael@0: }
michael@0: #endif
michael@0: 
michael@0: /* static */
michael@0: bool DecoderTraits::ShouldHandleMediaType(const char* aMIMEType)
michael@0: {
michael@0: #ifdef MOZ_WAVE
michael@0:   if (IsWaveType(nsDependentCString(aMIMEType))) {
michael@0:     // We should not return true for Wave types, since there are some
michael@0:     // Wave codecs actually in use in the wild that we don't support, and
michael@0:     // we should allow those to be handled by plugins or helper apps.
michael@0:     // Furthermore people can play Wave files on most platforms by other
michael@0:     // means.
michael@0:     return false;
michael@0:   }
michael@0: #endif
michael@0:   return CanHandleMediaType(aMIMEType, false, EmptyString()) != CANPLAY_NO;
michael@0: }
michael@0: 
michael@0: /* static */
michael@0: CanPlayStatus
michael@0: DecoderTraits::CanHandleMediaType(const char* aMIMEType,
michael@0:                                   bool aHaveRequestedCodecs,
michael@0:                                   const nsAString& aRequestedCodecs)
michael@0: {
michael@0:   char const* const* codecList = nullptr;
michael@0:   CanPlayStatus result = CANPLAY_NO;
michael@0: #ifdef MOZ_RAW
michael@0:   if (IsRawType(nsDependentCString(aMIMEType))) {
michael@0:     codecList = gRawCodecs;
michael@0:     result = CANPLAY_MAYBE;
michael@0:   }
michael@0: #endif
michael@0:   if (IsOggType(nsDependentCString(aMIMEType))) {
michael@0:     codecList = MediaDecoder::IsOpusEnabled() ? gOggCodecsWithOpus : gOggCodecs;
michael@0:     result = CANPLAY_MAYBE;
michael@0:   }
michael@0: #ifdef MOZ_WAVE
michael@0:   if (IsWaveType(nsDependentCString(aMIMEType))) {
michael@0:     codecList = gWaveCodecs;
michael@0:     result = CANPLAY_MAYBE;
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_WEBM
michael@0:   if (IsWebMType(nsDependentCString(aMIMEType))) {
michael@0:     codecList = gWebMCodecs;
michael@0:     result = CANPLAY_MAYBE;
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_GSTREAMER
michael@0:   if (GStreamerDecoder::CanHandleMediaType(nsDependentCString(aMIMEType),
michael@0:                                            aHaveRequestedCodecs ? &aRequestedCodecs : nullptr)) {
michael@0:     if (aHaveRequestedCodecs)
michael@0:       return CANPLAY_YES;
michael@0:     return CANPLAY_MAYBE;
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_OMX_DECODER
michael@0:   if (IsOmxSupportedType(nsDependentCString(aMIMEType))) {
michael@0:     result = CANPLAY_MAYBE;
michael@0:     if (nsDependentCString(aMIMEType).EqualsASCII("audio/mpeg")) {
michael@0:       codecList = gMpegAudioCodecs;
michael@0:     } else {
michael@0:       codecList = gH264Codecs;
michael@0:     }
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_DIRECTSHOW
michael@0:   // Note: DirectShow should come before WMF, so that we prefer DirectShow's
michael@0:   // MP3 support over WMF's.
michael@0:   if (DirectShowDecoder::GetSupportedCodecs(nsDependentCString(aMIMEType), &codecList)) {
michael@0:     result = CANPLAY_MAYBE;
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_WMF
michael@0:   if (IsWMFSupportedType(nsDependentCString(aMIMEType))) {
michael@0:     if (!aHaveRequestedCodecs) {
michael@0:       return CANPLAY_MAYBE;
michael@0:     }
michael@0:     return WMFDecoder::CanPlayType(nsDependentCString(aMIMEType),
michael@0:                                    aRequestedCodecs)
michael@0:            ? CANPLAY_YES : CANPLAY_NO;
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_APPLEMEDIA
michael@0:   if (IsAppleMediaSupportedType(nsDependentCString(aMIMEType), &codecList)) {
michael@0:     result = CANPLAY_MAYBE;
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_MEDIA_PLUGINS
michael@0:   if (MediaDecoder::IsMediaPluginsEnabled() &&
michael@0:       GetMediaPluginHost()->FindDecoder(nsDependentCString(aMIMEType), &codecList))
michael@0:     result = CANPLAY_MAYBE;
michael@0: #endif
michael@0: #ifdef NECKO_PROTOCOL_rtsp
michael@0:   if (IsRtspSupportedType(nsDependentCString(aMIMEType))) {
michael@0:     result = CANPLAY_MAYBE;
michael@0:   }
michael@0: #endif
michael@0:   if (result == CANPLAY_NO || !aHaveRequestedCodecs || !codecList) {
michael@0:     return result;
michael@0:   }
michael@0: 
michael@0:   // See http://www.rfc-editor.org/rfc/rfc4281.txt for the description
michael@0:   // of the 'codecs' parameter
michael@0:   nsCharSeparatedTokenizer tokenizer(aRequestedCodecs, ',');
michael@0:   bool expectMoreTokens = false;
michael@0:   while (tokenizer.hasMoreTokens()) {
michael@0:     const nsSubstring& token = tokenizer.nextToken();
michael@0: 
michael@0:     if (!CodecListContains(codecList, token)) {
michael@0:       // Totally unsupported codec
michael@0:       return CANPLAY_NO;
michael@0:     }
michael@0:     expectMoreTokens = tokenizer.separatorAfterCurrentToken();
michael@0:   }
michael@0:   if (expectMoreTokens) {
michael@0:     // Last codec name was empty
michael@0:     return CANPLAY_NO;
michael@0:   }
michael@0:   return CANPLAY_YES;
michael@0: }
michael@0: 
michael@0: // Instantiates but does not initialize decoder.
michael@0: static
michael@0: already_AddRefed<MediaDecoder>
michael@0: InstantiateDecoder(const nsACString& aType, MediaDecoderOwner* aOwner)
michael@0: {
michael@0:   nsRefPtr<MediaDecoder> decoder;
michael@0: 
michael@0: #ifdef MOZ_GSTREAMER
michael@0:   if (IsGStreamerSupportedType(aType)) {
michael@0:     decoder = new GStreamerDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_RAW
michael@0:   if (IsRawType(aType)) {
michael@0:     decoder = new RawDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0:   if (IsOggType(aType)) {
michael@0:     decoder = new OggDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #ifdef MOZ_WAVE
michael@0:   if (IsWaveType(aType)) {
michael@0:     decoder = new WaveDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_OMX_DECODER
michael@0:   if (IsOmxSupportedType(aType)) {
michael@0:     // AMR audio is enabled for MMS, but we are discouraging Web and App
michael@0:     // developers from using AMR, thus we only allow AMR to be played on WebApps.
michael@0:     if (aType.EqualsASCII("audio/amr")) {
michael@0:       dom::HTMLMediaElement* element = aOwner->GetMediaElement();
michael@0:       if (!element) {
michael@0:         return nullptr;
michael@0:       }
michael@0:       nsIPrincipal* principal = element->NodePrincipal();
michael@0:       if (!principal) {
michael@0:         return nullptr;
michael@0:       }
michael@0:       if (principal->GetAppStatus() < nsIPrincipal::APP_STATUS_PRIVILEGED) {
michael@0:         return nullptr;
michael@0:       }
michael@0:     }
michael@0:     decoder = new MediaOmxDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef NECKO_PROTOCOL_rtsp
michael@0:   if (IsRtspSupportedType(aType)) {
michael@0:     decoder = new RtspOmxDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_MEDIA_PLUGINS
michael@0:   if (MediaDecoder::IsMediaPluginsEnabled() &&
michael@0:       GetMediaPluginHost()->FindDecoder(aType, nullptr)) {
michael@0:     decoder = new MediaPluginDecoder(aType);
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_WEBM
michael@0:   if (IsWebMType(aType)) {
michael@0:     decoder = new WebMDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_DIRECTSHOW
michael@0:   // Note: DirectShow should come before WMF, so that we prefer DirectShow's
michael@0:   // MP3 support over WMF's.
michael@0:   if (IsDirectShowSupportedType(aType)) {
michael@0:     decoder = new DirectShowDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_FMP4
michael@0:   if (IsMP4SupportedType(aType)) {
michael@0:     decoder = new MP4Decoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_WMF
michael@0:   if (IsWMFSupportedType(aType)) {
michael@0:     decoder = new WMFDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: #ifdef MOZ_APPLEMEDIA
michael@0:   if (IsAppleMediaSupportedType(aType)) {
michael@0:     decoder = new AppleDecoder();
michael@0:     return decoder.forget();
michael@0:   }
michael@0: #endif
michael@0: 
michael@0:   NS_ENSURE_TRUE(decoder != nullptr, nullptr);
michael@0:   NS_ENSURE_TRUE(decoder->Init(aOwner), nullptr);
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: /* static */
michael@0: already_AddRefed<MediaDecoder>
michael@0: DecoderTraits::CreateDecoder(const nsACString& aType, MediaDecoderOwner* aOwner)
michael@0: {
michael@0:   nsRefPtr<MediaDecoder> decoder(InstantiateDecoder(aType, aOwner));
michael@0:   NS_ENSURE_TRUE(decoder != nullptr, nullptr);
michael@0:   NS_ENSURE_TRUE(decoder->Init(aOwner), nullptr);
michael@0: 
michael@0:   return decoder.forget();
michael@0: }
michael@0: 
michael@0: /* static */
michael@0: MediaDecoderReader* DecoderTraits::CreateReader(const nsACString& aType, AbstractMediaDecoder* aDecoder)
michael@0: {
michael@0:   MediaDecoderReader* decoderReader = nullptr;
michael@0: 
michael@0: #ifdef MOZ_GSTREAMER
michael@0:   if (IsGStreamerSupportedType(aType)) {
michael@0:     decoderReader = new GStreamerReader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0: #ifdef MOZ_RAW
michael@0:   if (IsRawType(aType)) {
michael@0:     decoderReader = new RawReader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0:   if (IsOggType(aType)) {
michael@0:     decoderReader = new OggReader(aDecoder);
michael@0:   } else
michael@0: #ifdef MOZ_WAVE
michael@0:   if (IsWaveType(aType)) {
michael@0:     decoderReader = new WaveReader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0: #ifdef MOZ_OMX_DECODER
michael@0:   if (IsOmxSupportedType(aType)) {
michael@0:     decoderReader = new MediaOmxReader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0: #ifdef MOZ_MEDIA_PLUGINS
michael@0:   if (MediaDecoder::IsMediaPluginsEnabled() &&
michael@0:       GetMediaPluginHost()->FindDecoder(aType, nullptr)) {
michael@0:     decoderReader = new MediaPluginReader(aDecoder, aType);
michael@0:   } else
michael@0: #endif
michael@0: #ifdef MOZ_WEBM
michael@0:   if (IsWebMType(aType)) {
michael@0:     decoderReader = new WebMReader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0: #ifdef MOZ_DIRECTSHOW
michael@0:   // Note: DirectShowReader is preferred for MP3, but if it's disabled we
michael@0:   // fallback to the WMFReader.
michael@0:   if (IsDirectShowSupportedType(aType)) {
michael@0:     decoderReader = new DirectShowReader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0: #ifdef MOZ_FMP4
michael@0:   if (IsMP4SupportedType(aType)) {
michael@0:     decoderReader = new MP4Reader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0: #ifdef MOZ_WMF
michael@0:   if (IsWMFSupportedType(aType)) {
michael@0:     decoderReader = new WMFReader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0: #ifdef MOZ_APPLEMEDIA
michael@0:   if (IsAppleMediaSupportedType(aType)) {
michael@0:     decoderReader = new AppleMP3Reader(aDecoder);
michael@0:   } else
michael@0: #endif
michael@0:   if (false) {} // dummy if to take care of the dangling else
michael@0: 
michael@0:   return decoderReader;
michael@0: }
michael@0: 
michael@0: /* static */
michael@0: bool DecoderTraits::IsSupportedInVideoDocument(const nsACString& aType)
michael@0: {
michael@0:   return
michael@0:     IsOggType(aType) ||
michael@0: #ifdef MOZ_OMX_DECODER
michael@0:     // We support amr inside WebApps on firefoxOS but not in general web content.
michael@0:     // Ensure we dont create a VideoDocument when accessing amr URLs directly.
michael@0:     (IsOmxSupportedType(aType) && !aType.EqualsASCII("audio/amr")) ||
michael@0: #endif
michael@0: #ifdef MOZ_WEBM
michael@0:     IsWebMType(aType) ||
michael@0: #endif
michael@0: #ifdef MOZ_GSTREAMER
michael@0:     IsGStreamerSupportedType(aType) ||
michael@0: #endif
michael@0: #ifdef MOZ_MEDIA_PLUGINS
michael@0:     (MediaDecoder::IsMediaPluginsEnabled() && IsMediaPluginsType(aType)) ||
michael@0: #endif
michael@0: #ifdef MOZ_FMP4
michael@0:     IsMP4SupportedType(aType) ||
michael@0: #endif
michael@0: #ifdef MOZ_WMF
michael@0:     (IsWMFSupportedType(aType) &&
michael@0:      Preferences::GetBool("media.windows-media-foundation.play-stand-alone", true)) ||
michael@0: #endif
michael@0: #ifdef MOZ_DIRECTSHOW
michael@0:     IsDirectShowSupportedType(aType) ||
michael@0: #endif
michael@0: #ifdef MOZ_APPLEMEDIA
michael@0:     IsAppleMediaSupportedType(aType) ||
michael@0: #endif
michael@0: #ifdef NECKO_PROTOCOL_rtsp
michael@0:     IsRtspSupportedType(aType) ||
michael@0: #endif
michael@0:     false;
michael@0: }
michael@0: 
michael@0: }