chromium/components/cdm/renderer/external_clear_key_key_system_info.cc

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/cdm/renderer/external_clear_key_key_system_info.h"

#include <algorithm>

#include "base/containers/contains.h"
#include "base/notreached.h"
#include "media/base/eme_constants.h"
#include "media/base/key_system_names.h"
#include "media/cdm/clear_key_cdm_common.h"

namespace cdm {

ExternalClearKeyKeySystemInfo::ExternalClearKeyKeySystemInfo()
    : … { … }

ExternalClearKeyKeySystemInfo::ExternalClearKeyKeySystemInfo(
    const std::string& key_system,
    std::vector<std::string> excluded_key_systems,
    media::SupportedCodecs codecs,
    media::EmeConfig::Rule eme_config_rule,
    media::EmeFeatureSupport persistent_state_support,
    media::EmeFeatureSupport distinctive_identifier_support)
    : … { … }

ExternalClearKeyKeySystemInfo::~ExternalClearKeyKeySystemInfo() = default;

std::string ExternalClearKeyKeySystemInfo::GetBaseKeySystemName() const { … }

bool ExternalClearKeyKeySystemInfo::IsSupportedKeySystem(
    const std::string& key_system) const { … }

bool ExternalClearKeyKeySystemInfo::IsSupportedInitDataType(
    media::EmeInitDataType init_data_type) const { … }

std::optional<media::EmeConfig>
ExternalClearKeyKeySystemInfo::GetEncryptionSchemeConfigRule(
    media::EncryptionScheme encryption_scheme) const { … }

media::SupportedCodecs ExternalClearKeyKeySystemInfo::GetSupportedCodecs()
    const { … }

// On Windows, MediaFoundation Clear Key CDM requires HW secure codecs. We
// need this method to pretent to require this for testing purposes.
media::SupportedCodecs
ExternalClearKeyKeySystemInfo::GetSupportedHwSecureCodecs() const { … }

std::optional<media::EmeConfig>
ExternalClearKeyKeySystemInfo::GetRobustnessConfigRule(
    const std::string& key_system,
    media::EmeMediaType media_type,
    const std::string& requested_robustness,
    const bool* /*hw_secure_requirement*/) const { … }

// Persistent license sessions are faked.
std::optional<media::EmeConfig>
ExternalClearKeyKeySystemInfo::GetPersistentLicenseSessionSupport() const { … }

media::EmeFeatureSupport
ExternalClearKeyKeySystemInfo::GetPersistentStateSupport() const { … }

media::EmeFeatureSupport
ExternalClearKeyKeySystemInfo::GetDistinctiveIdentifierSupport() const { … }

}  // namespace cdm