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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "DecoderTraits.h"
#include "MediaContainerType.h"
#include "mozilla/glean/GleanMetrics.h"
#include "mozilla/Preferences.h"
#include "OggDecoder.h"
#include "OggDemuxer.h"
#include "WebMDecoder.h"
#include "WebMDemuxer.h"
#ifdef MOZ_ANDROID_HLS_SUPPORT
# include "HLSDecoder.h"
#endif
#include "MP4Decoder.h"
#include "MP4Demuxer.h"
#include "MediaFormatReader.h"
#include "MP3Decoder.h"
#include "MP3Demuxer.h"
#include "WaveDecoder.h"
#include "WaveDemuxer.h"
#include "ADTSDecoder.h"
#include "ADTSDemuxer.h"
#include "FlacDecoder.h"
#include "FlacDemuxer.h"
namespace mozilla {
/* static */
bool DecoderTraits::IsHttpLiveStreamingType(const MediaContainerType& aType) {
const auto& mimeType = aType.Type();
return // For m3u8.
mimeType == MEDIAMIMETYPE("application/vnd.apple.mpegurl") ||
// Some sites serve these as the informal m3u type.
mimeType == MEDIAMIMETYPE("application/x-mpegurl") ||
mimeType == MEDIAMIMETYPE("audio/mpegurl") ||
mimeType == MEDIAMIMETYPE("audio/x-mpegurl");
}
/* static */
bool DecoderTraits::IsMatroskaType(const MediaContainerType& aType) {
const auto& mimeType = aType.Type();
return mimeType == MEDIAMIMETYPE("audio/x-matroska") ||
mimeType == MEDIAMIMETYPE("video/x-matroska");
}
static CanPlayStatus CanHandleCodecsType(
const MediaContainerType& aType, DecoderDoctorDiagnostics* aDiagnostics) {
// We should have been given a codecs string, though it may be empty.
MOZ_ASSERT(aType.ExtendedType().HaveCodecs());
// Container type with the MIME type, no codecs.
const MediaContainerType mimeType(aType.Type());
if (OggDecoder::IsSupportedType(mimeType)) {
if (OggDecoder::IsSupportedType(aType)) {
return CANPLAY_YES;
}
// We can only reach this position if a particular codec was requested,
// ogg is supported and working: the codec must be invalid.
return CANPLAY_NO;
}
if (WaveDecoder::IsSupportedType(MediaContainerType(mimeType))) {
if (WaveDecoder::IsSupportedType(aType)) {
return CANPLAY_YES;
}
// We can only reach this position if a particular codec was requested, wave
// is supported and working: the codec must be invalid or not supported.
return CANPLAY_NO;
}
if (WebMDecoder::IsSupportedType(mimeType)) {
if (WebMDecoder::IsSupportedType(aType)) {
return CANPLAY_YES;
}
// We can only reach this position if a particular codec was requested,
// webm is supported and working: the codec must be invalid.
return CANPLAY_NO;
}
if (MP4Decoder::IsSupportedType(mimeType,
/* DecoderDoctorDiagnostics* */ nullptr)) {
if (MP4Decoder::IsSupportedType(aType, aDiagnostics)) {
return CANPLAY_YES;
}
// We can only reach this position if a particular codec was requested,
// fmp4 is supported and working: the codec must be invalid.
return CANPLAY_NO;
}
if (MP3Decoder::IsSupportedType(mimeType)) {
if (MP3Decoder::IsSupportedType(aType)) {
return CANPLAY_YES;
}
// We can only reach this position if a particular codec was requested,
// mp3 is supported and working: the codec must be invalid.
return CANPLAY_NO;
}
if (ADTSDecoder::IsSupportedType(mimeType)) {
if (ADTSDecoder::IsSupportedType(aType)) {
return CANPLAY_YES;
}
// We can only reach this position if a particular codec was requested,
// adts is supported and working: the codec must be invalid.
return CANPLAY_NO;
}
if (FlacDecoder::IsSupportedType(mimeType)) {
if (FlacDecoder::IsSupportedType(aType)) {
return CANPLAY_YES;
}
// We can only reach this position if a particular codec was requested,
// flac is supported and working: the codec must be invalid.
return CANPLAY_NO;
}
return CANPLAY_MAYBE;
}
static CanPlayStatus CanHandleMediaType(
const MediaContainerType& aType, DecoderDoctorDiagnostics* aDiagnostics) {
if (DecoderTraits::IsHttpLiveStreamingType(aType)) {
glean::hls::canplay_requested.Add();
}
#ifdef MOZ_ANDROID_HLS_SUPPORT
if (HLSDecoder::IsSupportedType(aType)) {
glean::hls::canplay_supported.Add();
return CANPLAY_MAYBE;
}
#endif
if (DecoderTraits::IsMatroskaType(aType)) {
Telemetry::Accumulate(Telemetry::MEDIA_MKV_CANPLAY_REQUESTED, true);
}
if (aType.ExtendedType().HaveCodecs()) {
CanPlayStatus result = CanHandleCodecsType(aType, aDiagnostics);
if (result == CANPLAY_NO || result == CANPLAY_YES) {
return result;
}
}
// Container type with just the MIME type/subtype, no codecs.
const MediaContainerType mimeType(aType.Type());
if (OggDecoder::IsSupportedType(mimeType)) {
return CANPLAY_MAYBE;
}
if (WaveDecoder::IsSupportedType(mimeType)) {
return CANPLAY_MAYBE;
}
if (MP4Decoder::IsSupportedType(mimeType, aDiagnostics)) {
return CANPLAY_MAYBE;
}
if (WebMDecoder::IsSupportedType(mimeType)) {
return CANPLAY_MAYBE;
}
if (MP3Decoder::IsSupportedType(mimeType)) {
return CANPLAY_MAYBE;
}
if (ADTSDecoder::IsSupportedType(mimeType)) {
return CANPLAY_MAYBE;
}
if (FlacDecoder::IsSupportedType(mimeType)) {
return CANPLAY_MAYBE;
}
return CANPLAY_NO;
}
/* static */
CanPlayStatus DecoderTraits::CanHandleContainerType(
const MediaContainerType& aContainerType,
DecoderDoctorDiagnostics* aDiagnostics) {
return CanHandleMediaType(aContainerType, aDiagnostics);
}
/* 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;
}
return CanHandleMediaType(*containerType, aDiagnostics) != CANPLAY_NO;
}
/* static */
already_AddRefed<MediaDataDemuxer> DecoderTraits::CreateDemuxer(
const MediaContainerType& aType, MediaResource* aResource) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<MediaDataDemuxer> demuxer;
if (MP4Decoder::IsSupportedType(aType,
/* DecoderDoctorDiagnostics* */ nullptr)) {
demuxer = new MP4Demuxer(aResource);
} else if (MP3Decoder::IsSupportedType(aType)) {
demuxer = new MP3Demuxer(aResource);
} else if (ADTSDecoder::IsSupportedType(aType)) {
demuxer = new ADTSDemuxer(aResource);
} else if (WaveDecoder::IsSupportedType(aType)) {
demuxer = new WAVDemuxer(aResource);
} else if (FlacDecoder::IsSupportedType(aType)) {
demuxer = new FlacDemuxer(aResource);
} else if (OggDecoder::IsSupportedType(aType)) {
demuxer = new OggDemuxer(aResource);
} else if (WebMDecoder::IsSupportedType(aType)) {
demuxer = new WebMDemuxer(aResource);
}
return demuxer.forget();
}
/* static */
MediaFormatReader* DecoderTraits::CreateReader(const MediaContainerType& aType,
MediaFormatReaderInit& aInit) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<MediaDataDemuxer> demuxer = CreateDemuxer(aType, aInit.mResource);
if (!demuxer) {
return nullptr;
}
MediaFormatReader* decoderReader = new MediaFormatReader(aInit, demuxer);
if (OggDecoder::IsSupportedType(aType)) {
static_cast<OggDemuxer*>(demuxer.get())
->SetChainingEvents(&decoderReader->TimedMetadataProducer(),
&decoderReader->MediaNotSeekableProducer());
}
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.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) ||
MP4Decoder::IsSupportedType(*type,
/* DecoderDoctorDiagnostics* */ nullptr) ||
MP3Decoder::IsSupportedType(*type) ||
ADTSDecoder::IsSupportedType(*type) ||
FlacDecoder::IsSupportedType(*type) ||
#ifdef MOZ_ANDROID_HLS_SUPPORT
HLSDecoder::IsSupportedType(*type) ||
#endif
false;
}
/* static */
nsTArray<UniquePtr<TrackInfo>> DecoderTraits::GetTracksInfo(
const MediaContainerType& aType) {
// Container type with just the MIME type/subtype, no codecs.
const MediaContainerType mimeType(aType.Type());
if (OggDecoder::IsSupportedType(mimeType)) {
return OggDecoder::GetTracksInfo(aType);
}
if (WaveDecoder::IsSupportedType(mimeType)) {
return WaveDecoder::GetTracksInfo(aType);
}
if (MP4Decoder::IsSupportedType(mimeType, nullptr)) {
return MP4Decoder::GetTracksInfo(aType);
}
if (WebMDecoder::IsSupportedType(mimeType)) {
return WebMDecoder::GetTracksInfo(aType);
}
if (MP3Decoder::IsSupportedType(mimeType)) {
return MP3Decoder::GetTracksInfo(aType);
}
if (ADTSDecoder::IsSupportedType(mimeType)) {
return ADTSDecoder::GetTracksInfo(aType);
}
if (FlacDecoder::IsSupportedType(mimeType)) {
return FlacDecoder::GetTracksInfo(aType);
}
return nsTArray<UniquePtr<TrackInfo>>();
}
} // namespace mozilla