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| 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "webkit/compositor_bindings/web_to_ccvideo_frame_provider.h" |
| 6 |
| 7 #include "base/logging.h" |
| 8 #include "webkit/media/webvideoframe_impl.h" |
| 9 |
| 10 using WebKit::WebVideoFrame; |
| 11 using WebKit::WebVideoFrameProvider; |
| 12 using webkit_media::WebVideoFrameImpl; |
| 13 |
| 14 namespace webkit { |
| 15 |
| 16 scoped_ptr<WebToCCVideoFrameProvider> WebToCCVideoFrameProvider::Create( |
| 17 WebVideoFrameProvider* web_provider) { |
| 18 return make_scoped_ptr(new WebToCCVideoFrameProvider(web_provider)); |
| 19 } |
| 20 |
| 21 WebToCCVideoFrameProvider::WebToCCVideoFrameProvider( |
| 22 WebVideoFrameProvider* web_provider) |
| 23 : web_provider_(web_provider), |
| 24 web_frame_(NULL) { |
| 25 } |
| 26 |
| 27 WebToCCVideoFrameProvider::~WebToCCVideoFrameProvider() { |
| 28 } |
| 29 |
| 30 class WebToCCVideoFrameProvider::ClientAdapter |
| 31 : public WebVideoFrameProvider::Client { |
| 32 public: |
| 33 ClientAdapter(cc::VideoFrameProvider::Client* cc_client) |
| 34 : cc_client_(cc_client) {} |
| 35 virtual ~ClientAdapter() {} |
| 36 |
| 37 // WebToCCVideoFrameProvider::Client implementation. |
| 38 virtual void stopUsingProvider() { |
| 39 cc_client_->StopUsingProvider(); |
| 40 } |
| 41 |
| 42 virtual void didReceiveFrame() { |
| 43 cc_client_->DidReceiveFrame(); |
| 44 } |
| 45 |
| 46 virtual void didUpdateMatrix(const float* matrix) { |
| 47 cc_client_->DidUpdateMatrix(matrix); |
| 48 } |
| 49 |
| 50 private: |
| 51 cc::VideoFrameProvider::Client* cc_client_; |
| 52 }; |
| 53 |
| 54 void WebToCCVideoFrameProvider::SetVideoFrameProviderClient(Client* client) { |
| 55 scoped_ptr<ClientAdapter> client_adapter; |
| 56 if (client) |
| 57 client_adapter.reset(new ClientAdapter(client)); |
| 58 web_provider_->setVideoFrameProviderClient(client_adapter.get()); |
| 59 client_adapter_ = client_adapter.Pass(); |
| 60 } |
| 61 |
| 62 scoped_refptr<media::VideoFrame> WebToCCVideoFrameProvider::GetCurrentFrame() { |
| 63 web_frame_ = web_provider_->getCurrentFrame(); |
| 64 if (!web_frame_) |
| 65 return scoped_refptr<media::VideoFrame>(); |
| 66 WebVideoFrameImpl* impl = static_cast<WebVideoFrameImpl*>(web_frame_); |
| 67 return impl->video_frame; |
| 68 } |
| 69 |
| 70 void WebToCCVideoFrameProvider::PutCurrentFrame( |
| 71 scoped_refptr<media::VideoFrame> frame) { |
| 72 if (!frame) { |
| 73 DCHECK(!web_frame_); |
| 74 return; |
| 75 } |
| 76 DCHECK(web_frame_); |
| 77 WebVideoFrameImpl* impl = static_cast<WebVideoFrameImpl*>(web_frame_); |
| 78 DCHECK_EQ(impl->video_frame.get(), frame.get()); |
| 79 web_provider_->putCurrentFrame(web_frame_); |
| 80 web_frame_ = NULL; |
| 81 } |
| 82 |
| 83 } // namespace webkit |
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