forked from mirrors/gecko-dev
187 lines
6.8 KiB
C++
187 lines
6.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "KeySystemConfig.h"
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#include "EMEUtils.h"
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#include "GMPUtils.h"
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#include "KeySystemNames.h"
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#include "mozilla/StaticPrefs_media.h"
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#ifdef XP_WIN
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# include "WMFDecoderModule.h"
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#endif
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#ifdef MOZ_WIDGET_ANDROID
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# include "AndroidDecoderModule.h"
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# include "mozilla/java/MediaDrmProxyWrappers.h"
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# include "nsMimeTypes.h"
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#endif
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#ifdef MOZ_WMF_CDM
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# include "mediafoundation/WMFCDMImpl.h"
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#endif
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namespace mozilla {
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/* static */
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bool KeySystemConfig::Supports(const nsAString& aKeySystem) {
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nsCString api = nsLiteralCString(CHROMIUM_CDM_API);
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nsCString name = NS_ConvertUTF16toUTF8(aKeySystem);
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if (HaveGMPFor(api, {name})) {
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return true;
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}
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#ifdef MOZ_WIDGET_ANDROID
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// Check if we can use MediaDrm for this keysystem.
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if (mozilla::java::MediaDrmProxy::IsSchemeSupported(name)) {
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return true;
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}
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#endif
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#if MOZ_WMF_CDM
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if (IsPlayReadyKeySystem(aKeySystem) && WMFCDMImpl::Supports(aKeySystem)) {
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return true;
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}
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#endif
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return false;
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}
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/* static */
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bool KeySystemConfig::GetConfig(const nsAString& aKeySystem,
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KeySystemConfig& aConfig) {
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if (!Supports(aKeySystem)) {
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return false;
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}
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if (IsClearkeyKeySystem(aKeySystem)) {
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aConfig.mKeySystem = aKeySystem;
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aConfig.mInitDataTypes.AppendElement(u"cenc"_ns);
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aConfig.mInitDataTypes.AppendElement(u"keyids"_ns);
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aConfig.mInitDataTypes.AppendElement(u"webm"_ns);
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aConfig.mPersistentState = Requirement::Optional;
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aConfig.mDistinctiveIdentifier = Requirement::NotAllowed;
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aConfig.mSessionTypes.AppendElement(SessionType::Temporary);
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aConfig.mEncryptionSchemes.AppendElement(u"cenc"_ns);
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aConfig.mEncryptionSchemes.AppendElement(u"cbcs"_ns);
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aConfig.mEncryptionSchemes.AppendElement(u"cbcs-1-9"_ns);
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if (StaticPrefs::media_clearkey_persistent_license_enabled()) {
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aConfig.mSessionTypes.AppendElement(SessionType::PersistentLicense);
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}
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#if defined(XP_WIN)
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// Clearkey CDM uses WMF's H.264 decoder on Windows.
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if (WMFDecoderModule::CanCreateMFTDecoder(WMFStreamType::H264)) {
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aConfig.mMP4.SetCanDecryptAndDecode(EME_CODEC_H264);
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} else {
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_H264);
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}
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#else
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_H264);
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#endif
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_AAC);
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_FLAC);
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_OPUS);
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_VP9);
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aConfig.mWebM.SetCanDecrypt(EME_CODEC_VORBIS);
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aConfig.mWebM.SetCanDecrypt(EME_CODEC_OPUS);
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aConfig.mWebM.SetCanDecrypt(EME_CODEC_VP8);
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aConfig.mWebM.SetCanDecrypt(EME_CODEC_VP9);
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return true;
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}
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if (IsWidevineKeySystem(aKeySystem)) {
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aConfig.mKeySystem = aKeySystem;
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aConfig.mInitDataTypes.AppendElement(u"cenc"_ns);
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aConfig.mInitDataTypes.AppendElement(u"keyids"_ns);
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aConfig.mInitDataTypes.AppendElement(u"webm"_ns);
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aConfig.mPersistentState = Requirement::Optional;
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aConfig.mDistinctiveIdentifier = Requirement::NotAllowed;
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aConfig.mSessionTypes.AppendElement(SessionType::Temporary);
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#ifdef MOZ_WIDGET_ANDROID
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aConfig.mSessionTypes.AppendElement(SessionType::PersistentLicense);
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#endif
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aConfig.mAudioRobustness.AppendElement(u"SW_SECURE_CRYPTO"_ns);
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aConfig.mVideoRobustness.AppendElement(u"SW_SECURE_CRYPTO"_ns);
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aConfig.mVideoRobustness.AppendElement(u"SW_SECURE_DECODE"_ns);
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aConfig.mEncryptionSchemes.AppendElement(u"cenc"_ns);
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aConfig.mEncryptionSchemes.AppendElement(u"cbcs"_ns);
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aConfig.mEncryptionSchemes.AppendElement(u"cbcs-1-9"_ns);
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#if defined(MOZ_WIDGET_ANDROID)
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// MediaDrm.isCryptoSchemeSupported only allows passing
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// "video/mp4" or "video/webm" for mimetype string.
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// See
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// https://developer.android.com/reference/android/media/MediaDrm.html#isCryptoSchemeSupported(java.util.UUID,
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// java.lang.String) for more detail.
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typedef struct {
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const nsCString& mMimeType;
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const nsCString& mEMECodecType;
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const char16_t* mCodecType;
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KeySystemConfig::ContainerSupport* mSupportType;
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} DataForValidation;
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DataForValidation validationList[] = {
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{nsCString(VIDEO_MP4), EME_CODEC_H264, java::MediaDrmProxy::AVC,
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&aConfig.mMP4},
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{nsCString(VIDEO_MP4), EME_CODEC_VP9, java::MediaDrmProxy::AVC,
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&aConfig.mMP4},
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{nsCString(AUDIO_MP4), EME_CODEC_AAC, java::MediaDrmProxy::AAC,
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&aConfig.mMP4},
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{nsCString(AUDIO_MP4), EME_CODEC_FLAC, java::MediaDrmProxy::FLAC,
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&aConfig.mMP4},
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{nsCString(AUDIO_MP4), EME_CODEC_OPUS, java::MediaDrmProxy::OPUS,
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&aConfig.mMP4},
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{nsCString(VIDEO_WEBM), EME_CODEC_VP8, java::MediaDrmProxy::VP8,
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&aConfig.mWebM},
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{nsCString(VIDEO_WEBM), EME_CODEC_VP9, java::MediaDrmProxy::VP9,
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&aConfig.mWebM},
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{nsCString(AUDIO_WEBM), EME_CODEC_VORBIS, java::MediaDrmProxy::VORBIS,
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&aConfig.mWebM},
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{nsCString(AUDIO_WEBM), EME_CODEC_OPUS, java::MediaDrmProxy::OPUS,
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&aConfig.mWebM},
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};
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for (const auto& data : validationList) {
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if (java::MediaDrmProxy::IsCryptoSchemeSupported(kWidevineKeySystemName,
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data.mMimeType)) {
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if (AndroidDecoderModule::SupportsMimeType(data.mMimeType) !=
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media::DecodeSupport::Unsupported) {
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data.mSupportType->SetCanDecryptAndDecode(data.mEMECodecType);
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} else {
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data.mSupportType->SetCanDecrypt(data.mEMECodecType);
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}
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}
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}
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#else
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# if defined(XP_WIN)
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// Widevine CDM doesn't include an AAC decoder. So if WMF can't
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// decode AAC, and a codec wasn't specified, be conservative
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// and reject the MediaKeys request, since we assume Widevine
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// will be used with AAC.
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if (WMFDecoderModule::CanCreateMFTDecoder(WMFStreamType::AAC)) {
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_AAC);
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}
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# else
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_AAC);
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# endif
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_FLAC);
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aConfig.mMP4.SetCanDecrypt(EME_CODEC_OPUS);
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aConfig.mMP4.SetCanDecryptAndDecode(EME_CODEC_H264);
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aConfig.mMP4.SetCanDecryptAndDecode(EME_CODEC_VP9);
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aConfig.mWebM.SetCanDecrypt(EME_CODEC_VORBIS);
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aConfig.mWebM.SetCanDecrypt(EME_CODEC_OPUS);
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aConfig.mWebM.SetCanDecryptAndDecode(EME_CODEC_VP8);
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aConfig.mWebM.SetCanDecryptAndDecode(EME_CODEC_VP9);
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#endif
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return true;
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}
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#ifdef MOZ_WMF_CDM
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if (IsPlayReadyKeySystem(aKeySystem)) {
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RefPtr<WMFCDMImpl> cdm = MakeRefPtr<WMFCDMImpl>(aKeySystem);
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return cdm->GetCapabilities(aConfig);
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}
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#endif
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return false;
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}
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} // namespace mozilla
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