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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/cdm/renderer/widevine_key_systems.h"
#include <string>
#include <vector>
#include "base/logging.h"
#include "media/base/eme_constants.h"
#include "widevine_cdm_version.h" // In SHARED_INTERMEDIATE_DIR.
#if defined(WIDEVINE_CDM_AVAILABLE)
using media::KeySystemInfo;
using media::SupportedCodecs;
namespace cdm {
// Return |name|'s parent key system.
static std::string GetDirectParentName(std::string name) {
size_t last_period = name.find_last_of('.');
DCHECK_GT(last_period, 0u);
return name.substr(0u, last_period);
}
void AddWidevineWithCodecs(
WidevineCdmType widevine_cdm_type,
SupportedCodecs supported_codecs,
media::EmeRobustness max_audio_robustness,
media::EmeRobustness max_video_robustness,
media::EmeSessionTypeSupport persistent_license_support,
media::EmeSessionTypeSupport persistent_release_message_support,
media::EmeFeatureSupport persistent_state_support,
media::EmeFeatureSupport distinctive_identifier_support,
std::vector<KeySystemInfo>* concrete_key_systems) {
KeySystemInfo info;
info.key_system = kWidevineKeySystem;
switch (widevine_cdm_type) {
case WIDEVINE:
// For standard Widevine, add parent name.
info.parent_key_system = GetDirectParentName(kWidevineKeySystem);
break;
#if defined(OS_ANDROID)
case WIDEVINE_HR_NON_COMPOSITING:
info.key_system.append(".hrnoncompositing");
break;
#endif // defined(OS_ANDROID)
default:
NOTREACHED();
}
// TODO(xhwang): A container or an initDataType may be supported even though
// there are no codecs supported in that container. Fix this when we support
// initDataType.
info.supported_codecs = supported_codecs;
// Here we assume that support for a container imples support for the
// associated initialization data type. KeySystems handles validating
// |init_data_type| x |container| pairings.
if (supported_codecs & media::EME_CODEC_WEBM_ALL)
info.supported_init_data_types |= media::kInitDataTypeMaskWebM;
#if defined(USE_PROPRIETARY_CODECS)
if (supported_codecs & media::EME_CODEC_MP4_ALL)
info.supported_init_data_types |= media::kInitDataTypeMaskCenc;
#endif // defined(USE_PROPRIETARY_CODECS)
info.max_audio_robustness = max_audio_robustness;
info.max_video_robustness = max_video_robustness;
info.persistent_license_support = persistent_license_support;
info.persistent_release_message_support = persistent_release_message_support;
info.persistent_state_support = persistent_state_support;
info.distinctive_identifier_support = distinctive_identifier_support;
#if defined(ENABLE_PEPPER_CDMS)
info.pepper_type = kWidevineCdmPluginMimeType;
#endif // defined(ENABLE_PEPPER_CDMS)
concrete_key_systems->push_back(info);
}
} // namespace cdm
#endif // defined(WIDEVINE_CDM_AVAILABLE)
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