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// Copyright 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 "webkit/compositor_bindings/web_to_ccvideo_frame_provider.h"
#include "base/logging.h"
#include "media/base/video_frame.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebVideoFrameProvider.h"
#include "webkit/media/webvideoframe_impl.h"
using WebKit::WebVideoFrameProvider;
using webkit_media::WebVideoFrameImpl;
namespace webkit {
scoped_ptr<WebToCCVideoFrameProvider> WebToCCVideoFrameProvider::Create(
WebVideoFrameProvider* web_provider) {
return make_scoped_ptr(new WebToCCVideoFrameProvider(web_provider));
}
WebToCCVideoFrameProvider::WebToCCVideoFrameProvider(
WebVideoFrameProvider* web_provider)
: web_provider_(web_provider),
web_frame_(NULL) {
}
WebToCCVideoFrameProvider::~WebToCCVideoFrameProvider() {
}
class WebToCCVideoFrameProvider::ClientAdapter
: public WebVideoFrameProvider::Client {
public:
explicit ClientAdapter(cc::VideoFrameProvider::Client* cc_client)
: cc_client_(cc_client) {}
virtual ~ClientAdapter() {}
// WebVideoFrameProvider::Client implementation.
virtual void stopUsingProvider() {
cc_client_->StopUsingProvider();
}
virtual void didReceiveFrame() {
cc_client_->DidReceiveFrame();
}
virtual void didUpdateMatrix(const float* matrix) {
cc_client_->DidUpdateMatrix(matrix);
}
private:
cc::VideoFrameProvider::Client* cc_client_;
};
void WebToCCVideoFrameProvider::SetVideoFrameProviderClient(Client* client) {
scoped_ptr<ClientAdapter> client_adapter;
if (client)
client_adapter.reset(new ClientAdapter(client));
web_provider_->setVideoFrameProviderClient(client_adapter.get());
client_adapter_ = client_adapter.Pass();
}
scoped_refptr<media::VideoFrame> WebToCCVideoFrameProvider::GetCurrentFrame() {
web_frame_ = web_provider_->getCurrentFrame();
if (!web_frame_)
return scoped_refptr<media::VideoFrame>();
WebVideoFrameImpl* impl = static_cast<WebVideoFrameImpl*>(web_frame_);
return impl->video_frame;
}
void WebToCCVideoFrameProvider::PutCurrentFrame(
const scoped_refptr<media::VideoFrame>& frame) {
if (!frame) {
DCHECK(!web_frame_);
web_provider_->putCurrentFrame(web_frame_);
return;
}
DCHECK(web_frame_);
WebVideoFrameImpl* impl = static_cast<WebVideoFrameImpl*>(web_frame_);
DCHECK_EQ(impl->video_frame.get(), frame.get());
web_provider_->putCurrentFrame(web_frame_);
web_frame_ = NULL;
}
} // namespace webkit
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