f5d4cb1958
BUG=1662 R=mflodman@webrtc.org Review URL: https://webrtc-codereview.appspot.com/1492004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@4056 4adac7df-926f-26a2-2b94-8c16560cd09d
112 lines
3.9 KiB
C++
112 lines
3.9 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/video_engine/vie_encryption_impl.h"
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#include "webrtc/system_wrappers/interface/trace.h"
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#include "webrtc/video_engine/include/vie_errors.h"
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#include "webrtc/video_engine/vie_channel.h"
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#include "webrtc/video_engine/vie_channel_manager.h"
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#include "webrtc/video_engine/vie_defines.h"
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#include "webrtc/video_engine/vie_impl.h"
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#include "webrtc/video_engine/vie_shared_data.h"
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namespace webrtc {
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ViEEncryption* ViEEncryption::GetInterface(VideoEngine* video_engine) {
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#ifdef WEBRTC_VIDEO_ENGINE_ENCRYPTION_API
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if (video_engine == NULL) {
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return NULL;
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}
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VideoEngineImpl* vie_impl = static_cast<VideoEngineImpl*>(video_engine);
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ViEEncryptionImpl* vie_encryption_impl = vie_impl;
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// Increase ref count.
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(*vie_encryption_impl)++;
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return vie_encryption_impl;
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#else
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return NULL;
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#endif
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}
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int ViEEncryptionImpl::Release() {
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WEBRTC_TRACE(kTraceApiCall, kTraceVideo, shared_data_->instance_id(),
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"ViEEncryptionImpl::Release()");
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// Decrease ref count.
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(*this)--;
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int32_t ref_count = GetCount();
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if (ref_count < 0) {
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WEBRTC_TRACE(kTraceWarning, kTraceVideo, shared_data_->instance_id(),
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"ViEEncryptionImpl release too many times");
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shared_data_->SetLastError(kViEAPIDoesNotExist);
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return -1;
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}
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WEBRTC_TRACE(kTraceInfo, kTraceVideo, shared_data_->instance_id(),
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"ViEEncryptionImpl reference count: %d", ref_count);
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return ref_count;
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}
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ViEEncryptionImpl::ViEEncryptionImpl(ViESharedData* shared_data)
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: shared_data_(shared_data) {
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WEBRTC_TRACE(kTraceMemory, kTraceVideo, shared_data_->instance_id(),
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"ViEEncryptionImpl::ViEEncryptionImpl() Ctor");
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}
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ViEEncryptionImpl::~ViEEncryptionImpl() {
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WEBRTC_TRACE(kTraceMemory, kTraceVideo, shared_data_->instance_id(),
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"ViEEncryptionImpl::~ViEEncryptionImpl() Dtor");
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}
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int ViEEncryptionImpl::RegisterExternalEncryption(const int video_channel,
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Encryption& encryption) {
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WEBRTC_TRACE(kTraceApiCall, kTraceVideo,
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ViEId(shared_data_->instance_id(), video_channel),
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"RegisterExternalEncryption(video_channel=%d)", video_channel);
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ViEChannelManagerScoped cs(*(shared_data_->channel_manager()));
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ViEChannel* vie_channel = cs.Channel(video_channel);
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if (vie_channel == NULL) {
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WEBRTC_TRACE(kTraceError, kTraceVideo,
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ViEId(shared_data_->instance_id(), video_channel),
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"%s: No channel %d", __FUNCTION__, video_channel);
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shared_data_->SetLastError(kViEEncryptionInvalidChannelId);
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return -1;
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}
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if (vie_channel->RegisterExternalEncryption(&encryption) != 0) {
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shared_data_->SetLastError(kViEEncryptionUnknownError);
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return -1;
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}
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return 0;
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}
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int ViEEncryptionImpl::DeregisterExternalEncryption(const int video_channel) {
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WEBRTC_TRACE(kTraceApiCall, kTraceVideo,
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ViEId(shared_data_->instance_id(), video_channel),
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"RegisterExternalEncryption(video_channel=%d)", video_channel);
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ViEChannelManagerScoped cs(*(shared_data_->channel_manager()));
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ViEChannel* vie_channel = cs.Channel(video_channel);
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if (vie_channel == NULL) {
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WEBRTC_TRACE(kTraceError, kTraceVideo,
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ViEId(shared_data_->instance_id(), video_channel),
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"%s: No channel %d", __FUNCTION__, video_channel);
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shared_data_->SetLastError(kViEEncryptionInvalidChannelId);
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return -1;
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}
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if (vie_channel->DeRegisterExternalEncryption() != 0) {
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shared_data_->SetLastError(kViEEncryptionUnknownError);
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return -1;
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}
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return 0;
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}
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} // namespace webrtc
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