Code drop of WebRTC r1538
- The corresponding libjingle version is r115 per
http://code.google.com/p/webrtc/source/browse/trunk/peerconnection/DEPS?r=1739
Change-Id: I8f25660c25dce038880afaa68357161a61d51da4
diff --git a/src/video_engine/vie_encryption_impl.cc b/src/video_engine/vie_encryption_impl.cc
new file mode 100644
index 0000000..022322c
--- /dev/null
+++ b/src/video_engine/vie_encryption_impl.cc
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "video_engine/vie_encryption_impl.h"
+
+#include "system_wrappers/interface/trace.h"
+#include "video_engine/include/vie_errors.h"
+#include "video_engine/vie_channel.h"
+#include "video_engine/vie_channel_manager.h"
+#include "video_engine/vie_defines.h"
+#include "video_engine/vie_impl.h"
+
+namespace webrtc {
+
+ViEEncryption* ViEEncryption::GetInterface(VideoEngine* video_engine) {
+#ifdef WEBRTC_VIDEO_ENGINE_ENCRYPTION_API
+ if (video_engine == NULL) {
+ return NULL;
+ }
+ VideoEngineImpl* vie_impl = reinterpret_cast<VideoEngineImpl*>(video_engine);
+ ViEEncryptionImpl* vie_encryption_impl = vie_impl;
+ // Increase ref count.
+ (*vie_encryption_impl)++;
+ return vie_encryption_impl;
+#else
+ return NULL;
+#endif
+}
+
+int ViEEncryptionImpl::Release() {
+ WEBRTC_TRACE(kTraceApiCall, kTraceVideo, instance_id_,
+ "ViEEncryptionImpl::Release()");
+ // Decrease ref count.
+ (*this)--;
+
+ WebRtc_Word32 ref_count = GetCount();
+ if (ref_count < 0) {
+ WEBRTC_TRACE(kTraceWarning, kTraceVideo, instance_id_,
+ "ViEEncryptionImpl release too many times");
+ SetLastError(kViEAPIDoesNotExist);
+ return -1;
+ }
+ WEBRTC_TRACE(kTraceInfo, kTraceVideo, instance_id_,
+ "ViEEncryptionImpl reference count: %d", ref_count);
+ return ref_count;
+}
+
+ViEEncryptionImpl::ViEEncryptionImpl() {
+ WEBRTC_TRACE(kTraceMemory, kTraceVideo, instance_id_,
+ "ViEEncryptionImpl::ViEEncryptionImpl() Ctor");
+}
+
+ViEEncryptionImpl::~ViEEncryptionImpl() {
+ WEBRTC_TRACE(kTraceMemory, kTraceVideo, instance_id_,
+ "ViEEncryptionImpl::~ViEEncryptionImpl() Dtor");
+}
+
+int ViEEncryptionImpl::RegisterExternalEncryption(const int video_channel,
+ Encryption& encryption) {
+ WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(instance_id_, video_channel),
+ "RegisterExternalEncryption(video_channel=%d)", video_channel);
+
+ ViEChannelManagerScoped cs(channel_manager_);
+ ViEChannel* vie_channel = cs.Channel(video_channel);
+ if (vie_channel == NULL) {
+ WEBRTC_TRACE(kTraceError, kTraceVideo,
+ ViEId(instance_id_, video_channel), "%s: No channel %d",
+ __FUNCTION__, video_channel);
+ SetLastError(kViEEncryptionInvalidChannelId);
+ return -1;
+ }
+ if (vie_channel->RegisterExternalEncryption(&encryption) != 0) {
+ SetLastError(kViEEncryptionUnknownError);
+ return -1;
+ }
+ return 0;
+}
+
+int ViEEncryptionImpl::DeregisterExternalEncryption(const int video_channel) {
+ WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(instance_id_, video_channel),
+ "RegisterExternalEncryption(video_channel=%d)", video_channel);
+
+ ViEChannelManagerScoped cs(channel_manager_);
+ ViEChannel* vie_channel = cs.Channel(video_channel);
+ if (vie_channel == NULL) {
+ WEBRTC_TRACE(kTraceError, kTraceVideo, ViEId(instance_id_, video_channel),
+ "%s: No channel %d", __FUNCTION__, video_channel);
+ SetLastError(kViEEncryptionInvalidChannelId);
+ return -1;
+ }
+
+ if (vie_channel->DeRegisterExternalEncryption() != 0) {
+ SetLastError(kViEEncryptionUnknownError);
+ return -1;
+ }
+ return 0;
+}
+
+} // namespace webrtc
