EMEUtils.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef EME_LOG_H_

#define EME_LOG_H_

#include "mozilla/Logging.h"

#include "mozilla/dom/MediaKeyStatusMapBinding.h"

#include "mozilla/dom/MediaKeySystemAccessBinding.h"

#include "nsString.h"

#include "nsTArray.h"

namespace mozilla {

enum class CryptoScheme : uint8_t;

#ifdef MOZ_WMF_CDM

class MFCDMCapabilitiesIPDL;

#endif

struct KeySystemConfig;

namespace dom {

class ArrayBufferViewOrArrayBuffer;

class Document;

}  // namespace dom

#ifndef EME_LOG

LogModule* GetEMELog();

#  define EME_LOG(...) \

    MOZ_LOG(GetEMELog(), mozilla::LogLevel::Debug, (__VA_ARGS__))

#  define EME_LOG_ENABLED() MOZ_LOG_TEST(GetEMELog(), mozilla::LogLevel::Debug)

#endif

#ifndef EME_VERBOSE_LOG

LogModule* GetEMEVerboseLog();

#  define EME_VERBOSE_LOG(...) \

    MOZ_LOG(GetEMEVerboseLog(), mozilla::LogLevel::Debug, (__VA_ARGS__))

#else

#  ifndef EME_LOG

#    define EME_LOG(...)

#  endif

#  ifndef EME_VERBOSE_LOG

#    define EME_VERBOSE_LOG(...)

#  endif

#endif

// Helper function to extract a copy of data coming in from JS in an

// (ArrayBuffer or ArrayBufferView) IDL typed function argument.

//

// Only call this on a properly initialized ArrayBufferViewOrArrayBuffer.

void CopyArrayBufferViewOrArrayBufferData(

    const dom::ArrayBufferViewOrArrayBuffer& aBufferOrView,

    nsTArray<uint8_t>& aOutData);

nsString KeySystemToProxyName(const nsAString& aKeySystem);

bool IsClearkeyKeySystem(const nsAString& aKeySystem);

bool IsWidevineKeySystem(const nsAString& aKeySystem);

#ifdef MOZ_WMF_CDM

bool IsPlayReadyEnabled();

bool IsPlayReadyKeySystemAndSupported(const nsAString& aKeySystem);

bool IsWidevineHardwareDecryptionEnabled();

bool IsWidevineExperimentKeySystemAndSupported(const nsAString& aKeySystem);

bool IsWMFClearKeySystemAndSupported(const nsAString& aKeySystem);

#endif

// Note: Primetime is now unsupported, but we leave it in the enum so

// that the telemetry enum values are not changed; doing so would break

// existing telemetry probes.

enum CDMType {

  eClearKey = 0,

  ePrimetime = 1,  // Note: Unsupported.

  eWidevine = 2,

  eUnknown = 3

};

CDMType ToCDMTypeTelemetryEnum(const nsString& aKeySystem);

const char* ToMediaKeyStatusStr(dom::MediaKeyStatus aStatus);

// Return true if given config supports hardware decryption (SL3000 or L1).

bool IsHardwareDecryptionSupported(

    const dom::MediaKeySystemConfiguration& aConfig);

bool IsHardwareDecryptionSupported(const KeySystemConfig& aConfig);

const char* EncryptionSchemeStr(const CryptoScheme& aScheme);

#ifdef MOZ_WMF_CDM

void MFCDMCapabilitiesIPDLToKeySystemConfig(

    const MFCDMCapabilitiesIPDL& aCDMConfig, KeySystemConfig& aKeySystemConfig);

#endif

bool DoesKeySystemSupportClearLead(const nsAString& aKeySystem);

// Return true if there is any config in the given configs has hardware DRM

// associated robustness.

bool CheckIfHarewareDRMConfigExists(

    const nsTArray<dom::MediaKeySystemConfiguration>& aConfigs);

bool DoesKeySystemSupportHardwareDecryption(const nsAString& aKeySystem);

void DeprecationWarningLog(const dom::Document* aDocument,

                           const char* aMsgName);

}  // namespace mozilla

#endif  // EME_LOG_H_