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// Copyright 2017 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "starboard/android/shared/drm_system.h"
#include "starboard/android/shared/jni_env_ext.h"
#include "starboard/android/shared/jni_utils.h"
#include "starboard/android/shared/media_common.h"
#include "starboard/common/instance_counter.h"
namespace {
using starboard::android::shared::DrmSystem;
using starboard::android::shared::JniEnvExt;
using starboard::android::shared::ScopedLocalJavaRef;
const char kNoUrl[] = "";
// Using all capital names to be consistent with other Android media statuses.
// They are defined in the same order as in their Java counterparts. Their
// values should be kept in consistent with their Java counterparts defined in
// android.media.MediaDrm.KeyStatus.
const jint MEDIA_DRM_KEY_STATUS_EXPIRED = 1;
const jint MEDIA_DRM_KEY_STATUS_INTERNAL_ERROR = 4;
const jint MEDIA_DRM_KEY_STATUS_OUTPUT_NOT_ALLOWED = 2;
const jint MEDIA_DRM_KEY_STATUS_PENDING = 3;
const jint MEDIA_DRM_KEY_STATUS_USABLE = 0;
// They must have the same values as defined in MediaDrm.KeyRequest.
const jint REQUEST_TYPE_INITIAL = 0;
const jint REQUEST_TYPE_RENEWAL = 1;
const jint REQUEST_TYPE_RELEASE = 2;
DECLARE_INSTANCE_COUNTER(AndroidDrmSystem)
SbDrmSessionRequestType SbDrmSessionRequestTypeFromMediaDrmKeyRequestType(
jint request_type) {
if (request_type == REQUEST_TYPE_INITIAL) {
return kSbDrmSessionRequestTypeLicenseRequest;
}
if (request_type == REQUEST_TYPE_RENEWAL) {
return kSbDrmSessionRequestTypeLicenseRenewal;
}
if (request_type == REQUEST_TYPE_RELEASE) {
return kSbDrmSessionRequestTypeLicenseRelease;
}
SB_NOTREACHED();
return kSbDrmSessionRequestTypeLicenseRequest;
}
} // namespace
// This has to be defined outside the above anonymous namespace to be picked up
// by the comparison of std::vector<SbDrmKeyId>.
bool operator==(const SbDrmKeyId& left, const SbDrmKeyId& right) {
if (left.identifier_size != right.identifier_size) {
return false;
}
return SbMemoryCompare(left.identifier, right.identifier,
left.identifier_size) == 0;
}
extern "C" SB_EXPORT_PLATFORM void
Java_dev_cobalt_media_MediaDrmBridge_nativeOnSessionMessage(
JNIEnv* env,
jobject unused_this,
jlong native_media_drm_bridge,
jint ticket,
jbyteArray j_session_id,
jint request_type,
jbyteArray j_message) {
jbyte* session_id_elements = env->GetByteArrayElements(j_session_id, NULL);
jsize session_id_size = env->GetArrayLength(j_session_id);
jbyte* message_elements = env->GetByteArrayElements(j_message, NULL);
jsize message_size = env->GetArrayLength(j_message);
SB_DCHECK(session_id_elements);
SB_DCHECK(message_elements);
DrmSystem* drm_system = reinterpret_cast<DrmSystem*>(native_media_drm_bridge);
SB_DCHECK(drm_system);
drm_system->CallUpdateRequestCallback(
ticket, SbDrmSessionRequestTypeFromMediaDrmKeyRequestType(request_type),
session_id_elements, session_id_size, message_elements, message_size,
kNoUrl);
env->ReleaseByteArrayElements(j_session_id, session_id_elements, JNI_ABORT);
env->ReleaseByteArrayElements(j_message, message_elements, JNI_ABORT);
}
extern "C" SB_EXPORT_PLATFORM void
Java_dev_cobalt_media_MediaDrmBridge_nativeOnKeyStatusChange(
JniEnvExt* env,
jobject unused_this,
jlong native_media_drm_bridge,
jbyteArray j_session_id,
jobjectArray j_key_status_array) {
jbyte* session_id_elements = env->GetByteArrayElements(j_session_id, NULL);
jsize session_id_size = env->GetArrayLength(j_session_id);
SB_DCHECK(session_id_elements);
// NULL array indicates key status isn't supported (i.e. Android API < 23)
jsize length = (j_key_status_array == NULL) ? 0
: env->GetArrayLength(j_key_status_array);
std::vector<SbDrmKeyId> drm_key_ids(length);
std::vector<SbDrmKeyStatus> drm_key_statuses(length);
for (jsize i = 0; i < length; ++i) {
jobject j_key_status =
env->GetObjectArrayElementOrAbort(j_key_status_array, i);
jbyteArray j_key_id = static_cast<jbyteArray>(
env->CallObjectMethodOrAbort(j_key_status, "getKeyId", "()[B"));
jbyte* key_id_elements = env->GetByteArrayElements(j_key_id, NULL);
jsize key_id_size = env->GetArrayLength(j_key_id);
SB_DCHECK(key_id_elements);
SB_DCHECK(key_id_size <= sizeof(drm_key_ids[i].identifier));
SbMemoryCopy(drm_key_ids[i].identifier, key_id_elements, key_id_size);
env->ReleaseByteArrayElements(j_key_id, key_id_elements, JNI_ABORT);
drm_key_ids[i].identifier_size = key_id_size;
jint j_status_code =
env->CallIntMethodOrAbort(j_key_status, "getStatusCode", "()I");
if (j_status_code == MEDIA_DRM_KEY_STATUS_EXPIRED) {
drm_key_statuses[i] = kSbDrmKeyStatusExpired;
} else if (j_status_code == MEDIA_DRM_KEY_STATUS_INTERNAL_ERROR) {
drm_key_statuses[i] = kSbDrmKeyStatusError;
} else if (j_status_code == MEDIA_DRM_KEY_STATUS_OUTPUT_NOT_ALLOWED) {
drm_key_statuses[i] = kSbDrmKeyStatusRestricted;
} else if (j_status_code == MEDIA_DRM_KEY_STATUS_PENDING) {
drm_key_statuses[i] = kSbDrmKeyStatusPending;
} else if (j_status_code == MEDIA_DRM_KEY_STATUS_USABLE) {
drm_key_statuses[i] = kSbDrmKeyStatusUsable;
} else {
SB_NOTREACHED();
drm_key_statuses[i] = kSbDrmKeyStatusError;
}
}
DrmSystem* drm_system = reinterpret_cast<DrmSystem*>(native_media_drm_bridge);
SB_DCHECK(drm_system);
drm_system->CallDrmSessionKeyStatusesChangedCallback(
session_id_elements, session_id_size, drm_key_ids, drm_key_statuses);
env->ReleaseByteArrayElements(j_session_id, session_id_elements, JNI_ABORT);
}
namespace starboard {
namespace android {
namespace shared {
namespace {
jbyteArray ByteArrayFromRaw(const void* data, int size) {
return JniEnvExt::Get()->NewByteArrayFromRaw(static_cast<const jbyte*>(data),
size);
}
} // namespace
DrmSystem::DrmSystem(
void* context,
SbDrmSessionUpdateRequestFunc update_request_callback,
SbDrmSessionUpdatedFunc session_updated_callback,
SbDrmSessionKeyStatusesChangedFunc key_statuses_changed_callback)
: context_(context),
update_request_callback_(update_request_callback),
session_updated_callback_(session_updated_callback),
key_statuses_changed_callback_(key_statuses_changed_callback),
j_media_drm_bridge_(NULL),
j_media_crypto_(NULL),
hdcp_lost_(false) {
ON_INSTANCE_CREATED(AndroidDrmSystem);
JniEnvExt* env = JniEnvExt::Get();
j_media_drm_bridge_ = env->CallStaticObjectMethodOrAbort(
"dev/cobalt/media/MediaDrmBridge", "create",
"(J)Ldev/cobalt/media/MediaDrmBridge;", reinterpret_cast<jlong>(this));
if (!j_media_drm_bridge_) {
SB_LOG(ERROR) << "Failed to create MediaDrmBridge.";
return;
}
j_media_drm_bridge_ = env->ConvertLocalRefToGlobalRef(j_media_drm_bridge_);
j_media_crypto_ = env->CallObjectMethodOrAbort(
j_media_drm_bridge_, "getMediaCrypto", "()Landroid/media/MediaCrypto;");
if (!j_media_crypto_) {
SB_LOG(ERROR) << "Failed to create MediaCrypto.";
return;
}
j_media_crypto_ = env->ConvertLocalRefToGlobalRef(j_media_crypto_);
}
DrmSystem::~DrmSystem() {
ON_INSTANCE_RELEASED(AndroidDrmSystem);
JniEnvExt* env = JniEnvExt::Get();
if (j_media_crypto_) {
env->DeleteGlobalRef(j_media_crypto_);
j_media_crypto_ = NULL;
}
if (j_media_drm_bridge_) {
env->CallVoidMethodOrAbort(j_media_drm_bridge_, "destroy", "()V");
env->DeleteGlobalRef(j_media_drm_bridge_);
j_media_drm_bridge_ = NULL;
}
}
void DrmSystem::GenerateSessionUpdateRequest(int ticket,
const char* type,
const void* initialization_data,
int initialization_data_size) {
ScopedLocalJavaRef<jbyteArray> j_init_data(
ByteArrayFromRaw(initialization_data, initialization_data_size));
JniEnvExt* env = JniEnvExt::Get();
ScopedLocalJavaRef<jstring> j_mime(env->NewStringStandardUTFOrAbort(type));
env->CallVoidMethodOrAbort(
j_media_drm_bridge_, "createSession", "(I[BLjava/lang/String;)V",
static_cast<jint>(ticket), j_init_data.Get(), j_mime.Get());
// |update_request_callback_| will be called by Java calling into
// |onSessionMessage|.
}
void DrmSystem::UpdateSession(int ticket,
const void* key,
int key_size,
const void* session_id,
int session_id_size) {
ScopedLocalJavaRef<jbyteArray> j_session_id(
ByteArrayFromRaw(session_id, session_id_size));
ScopedLocalJavaRef<jbyteArray> j_response(ByteArrayFromRaw(key, key_size));
auto env = JniEnvExt::Get();
ScopedLocalJavaRef<jobject> update_result(env->CallObjectMethodOrAbort(
j_media_drm_bridge_, "updateSession",
"(I[B[B)Ldev/cobalt/media/MediaDrmBridge$UpdateSessionResult;",
static_cast<jint>(ticket), j_session_id.Get(), j_response.Get()));
jboolean update_success =
env->CallBooleanMethodOrAbort(update_result.Get(), "isSuccess", "()Z");
ScopedLocalJavaRef<jstring> error_msg_java(env->CallObjectMethodOrAbort(
update_result.Get(), "getErrorMessage", "()Ljava/lang/String;"));
std::string error_msg =
env->GetStringStandardUTFOrAbort(error_msg_java.Get());
session_updated_callback_(this, context_, ticket,
update_success == JNI_TRUE
? kSbDrmStatusSuccess
: kSbDrmStatusUnknownError,
error_msg.c_str(), session_id, session_id_size);
}
void DrmSystem::CloseSession(const void* session_id, int session_id_size) {
JniEnvExt* env = JniEnvExt::Get();
ScopedLocalJavaRef<jbyteArray> j_session_id(
ByteArrayFromRaw(session_id, session_id_size));
std::string session_id_as_string(
static_cast<const char*>(session_id),
static_cast<const char*>(session_id) + session_id_size);
{
ScopedLock scoped_lock(mutex_);
auto iter = cached_drm_key_ids_.find(session_id_as_string);
if (iter != cached_drm_key_ids_.end()) {
cached_drm_key_ids_.erase(iter);
}
}
env->CallVoidMethodOrAbort(j_media_drm_bridge_, "closeSession", "([B)V",
j_session_id.Get());
}
DrmSystem::DecryptStatus DrmSystem::Decrypt(InputBuffer* buffer) {
SB_DCHECK(buffer);
SB_DCHECK(buffer->drm_info());
SB_DCHECK(j_media_crypto_);
// The actual decryption will take place by calling |queueSecureInputBuffer|
// in the decoders. Our existence implies that there is enough information
// to perform the decryption.
// TODO: Returns kRetry when |UpdateSession| is not called at all to allow the
// player worker to handle the retry logic.
return kSuccess;
}
void DrmSystem::CallUpdateRequestCallback(int ticket,
SbDrmSessionRequestType request_type,
const void* session_id,
int session_id_size,
const void* content,
int content_size,
const char* url) {
update_request_callback_(this, context_, ticket, kSbDrmStatusSuccess,
request_type, NULL, session_id, session_id_size,
content, content_size, url);
}
void DrmSystem::CallDrmSessionKeyStatusesChangedCallback(
const void* session_id,
int session_id_size,
const std::vector<SbDrmKeyId>& drm_key_ids,
const std::vector<SbDrmKeyStatus>& drm_key_statuses) {
SB_DCHECK(drm_key_ids.size() == drm_key_statuses.size());
std::string session_id_as_string(
static_cast<const char*>(session_id),
static_cast<const char*>(session_id) + session_id_size);
{
ScopedLock scoped_lock(mutex_);
if (cached_drm_key_ids_[session_id_as_string] != drm_key_ids) {
cached_drm_key_ids_[session_id_as_string] = drm_key_ids;
if (hdcp_lost_) {
CallKeyStatusesChangedCallbackWithKeyStatusRestricted_Locked();
return;
}
}
}
key_statuses_changed_callback_(this, context_, session_id, session_id_size,
static_cast<int>(drm_key_ids.size()),
drm_key_ids.data(), drm_key_statuses.data());
}
void DrmSystem::OnInsufficientOutputProtection() {
// HDCP has lost, update the statuses of all keys in all known sessions to be
// restricted.
ScopedLock scoped_lock(mutex_);
if (hdcp_lost_) {
return;
}
hdcp_lost_ = true;
CallKeyStatusesChangedCallbackWithKeyStatusRestricted_Locked();
}
void DrmSystem::CallKeyStatusesChangedCallbackWithKeyStatusRestricted_Locked() {
mutex_.DCheckAcquired();
for (auto& iter : cached_drm_key_ids_) {
const std::string& session_id = iter.first;
const std::vector<SbDrmKeyId>& drm_key_ids = iter.second;
std::vector<SbDrmKeyStatus> drm_key_statuses(drm_key_ids.size(),
kSbDrmKeyStatusRestricted);
key_statuses_changed_callback_(this, context_, session_id.data(),
session_id.size(),
static_cast<int>(drm_key_ids.size()),
drm_key_ids.data(), drm_key_statuses.data());
}
}
} // namespace shared
} // namespace android
} // namespace starboard