Pepper: add PPB_VideoEncoder interface

ppapi/cpp/video_encoder_client.cc

+// Copyright (c) 2012 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 "ppapi/cpp/video_encoder_client.h"
+
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/instance_handle.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/module_impl.h"
+#include "ppapi/cpp/video_encoder.h"
+
+namespace pp {
+
+namespace {
+
+const char kPPPVideoEncoderInterface[] = PPP_VIDEOENCODER_INTERFACE_0_1;
+
+void HandleBitstreamBuffer(PP_Instance instance,
+                           PP_Resource encoder,
+                           const PP_VideoEncoderBitstreamBuffer* buffer) {
+  void* object = Instance::GetPerInstanceObject(instance,
+                                                kPPPVideoEncoderInterface);
+  if (!object)
+    return;
+  static_cast<VideoEncoderClient*>(object)->HandleBitstreamBuffer(
+      VideoEncoder(encoder), *buffer);
+}
+
+static PPP_VideoEncoder_0_1 videoencoder_interface = {
+  &HandleBitstreamBuffer,
+};
+
+}  // namespace
+
+VideoEncoderClient::VideoEncoderClient(Instance* instance)
+    : associated_instance_(instance) {
+  Module::Get()->AddPluginInterface(kPPPVideoEncoderInterface,
+                                    &videoencoder_interface);
+  instance->AddPerInstanceObject(kPPPVideoEncoderInterface, this);
+}
+
+VideoEncoderClient::~VideoEncoderClient() {
+  Instance::RemovePerInstanceObject(associated_instance_,
+                                    kPPPVideoEncoderInterface, this);
+}
+
+}  // namespace pp