Add Pepper VideoReader and VideoWriter plumbing

ppapi/proxy/video_writer_resource.cc

Index: ppapi/proxy/video_writer_resource.cc
diff --git a/ppapi/proxy/video_writer_resource.cc b/ppapi/proxy/video_writer_resource.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9ff6cca74d8ac940e790685dba667cf5219fd356
--- /dev/null
+++ b/ppapi/proxy/video_writer_resource.cc
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+// Copyright (c) 2013 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/proxy/video_writer_resource.h"
+
+#include "base/bind.h"
+#include "ipc/ipc_message.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/pp_video_frame.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/shared_impl/array_writer.h"
+#include "ppapi/shared_impl/ppapi_globals.h"
+#include "ppapi/shared_impl/resource_tracker.h"
+#include "ppapi/shared_impl/var.h"
+#include "ppapi/thunk/enter.h"
+
+using ppapi::thunk::EnterResourceNoLock;
+using ppapi::thunk::PPB_VideoWriter_API;
+
+namespace {
+
+}  // namespace
+
+namespace ppapi {
+namespace proxy {
+
+VideoWriterResource::VideoWriterResource(
+    Connection connection,
+    PP_Instance instance)
+    : PluginResource(connection, instance) {
+  SendCreate(RENDERER, PpapiHostMsg_VideoWriter_Create());
+}
+
+VideoWriterResource::~VideoWriterResource() {
+}
+
+PPB_VideoWriter_API* VideoWriterResource::AsPPB_VideoWriter_API() {
+  return this;
+}
+
+int32_t VideoWriterResource::Open(
+    PP_Var* stream_id,
+    scoped_refptr<TrackedCallback> callback) {
+  Call<PpapiPluginMsg_VideoWriter_OpenReply>(RENDERER,
+      PpapiHostMsg_VideoWriter_Open(),
+      base::Bind(&VideoWriterResource::OnPluginMsgOpenComplete, this,
+                 stream_id, callback));
+  return PP_OK_COMPLETIONPENDING;
+}
+
+int32_t VideoWriterResource::PutFrame(const PP_VideoFrame& frame) {
+  Resource* image_object =
+      PpapiGlobals::Get()->GetResourceTracker()->GetResource(frame.image_data);
+  if (!image_object || pp_instance() != image_object->pp_instance()) {
+    Log(PP_LOGLEVEL_ERROR,
+        "VideoWriterResource.PutFrame: Bad image resource.");
+    return PP_ERROR_BADARGUMENT;
+  }
+  Post(RENDERER,
+       PpapiHostMsg_VideoWriter_PutFrame(image_object->host_resource(),
+                                         frame.timestamp));
+  return PP_OK;
+}
+
+void VideoWriterResource::Close() {
+  Post(RENDERER, PpapiHostMsg_VideoWriter_Close());
+}
+
+void VideoWriterResource::OnPluginMsgOpenComplete(
+    PP_Var* pp_stream_id,
+    scoped_refptr<TrackedCallback> callback,
+    const ResourceMessageReplyParams& params,
+    const std::string& stream_id) {
+  int32_t result = params.result();
+  *pp_stream_id = StringVar::StringToPPVar(stream_id);
+  callback->Run(result);
+}
+
+}  // namespace proxy
+}  // namespace ppapi