Implemented way to share video frames between WebKit and Chromium

webkit/glue/webmediaplayer_impl.cc

 // Copyright (c) 2010 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/glue/webmediaplayer_impl.h"
 
 #include <limits>
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "media/base/limits.h"
 #include "media/base/media_format.h"
 #include "media/base/media_switches.h"
+#include "media/base/video_frame.h"
 #include "media/filters/ffmpeg_audio_decoder.h"
 #include "media/filters/ffmpeg_demuxer.h"
 #include "media/filters/ffmpeg_video_decoder.h"
 #include "media/filters/null_audio_renderer.h"
 #include "skia/ext/platform_canvas.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebRect.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebSize.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebVideoFrame.h"
+#include "webkit/glue/webvideoframe_impl.h"
 #include "webkit/glue/media/video_renderer_impl.h"
 #include "webkit/glue/media/web_video_renderer.h"
 
 using WebKit::WebCanvas;
 using WebKit::WebRect;
 using WebKit::WebSize;
 
 namespace {
 
 // Limits the maximum outstanding repaints posted on render thread.
@@ skipping 141 matching lines @@
   }
 }
 
 void WebMediaPlayerImpl::Proxy::NetworkEventTask() {
   DCHECK(MessageLoop::current() == render_loop_);
   if (webmediaplayer_) {
     webmediaplayer_->OnNetworkEvent();
   }
 }
 
+void WebMediaPlayerImpl::Proxy::GetCurrentFrame(scoped_refptr<media::VideoFrame>* frame_out) {
+  if (video_renderer_) {
+    video_renderer_->GetCurrentFrame(frame_out);
+  }
+}
+
+void WebMediaPlayerImpl::Proxy::PutCurrentFrame(scoped_refptr<media::VideoFrame> frame) {
+  if (video_renderer_) {
+    video_renderer_->PutCurrentFrame(frame);
+  }
+}
+
 /////////////////////////////////////////////////////////////////////////////
 // WebMediaPlayerImpl implementation
 
 WebMediaPlayerImpl::WebMediaPlayerImpl(WebKit::WebMediaPlayerClient* client,
                                        media::FilterFactoryCollection* factory,
                                        WebVideoRendererFactoryFactory*
                                            video_renderer_factory)
     : network_state_(WebKit::WebMediaPlayer::Empty),
       ready_state_(WebKit::WebMediaPlayer::HaveNothing),
       main_loop_(NULL),
@@ skipping 519 matching lines @@
 void WebMediaPlayerImpl::PipelineStoppedCallback() {
   pipeline_stopped_.Signal();
 }
 
 WebKit::WebMediaPlayerClient* WebMediaPlayerImpl::GetClient() {
   DCHECK(MessageLoop::current() == main_loop_);
   DCHECK(client_);
   return client_;
 }
 
+void WebMediaPlayerImpl::getCurrentFrame(WebKit::WebVideoFrame** output) {
+  scoped_refptr<media::VideoFrame> video_frame;
+  proxy_->GetCurrentFrame(&video_frame);
+  if (video_frame.get())
+    *output = new WebVideoFrameImpl(video_frame.get());
+  else
+    *output = 0;
+}
+
+void WebMediaPlayerImpl::putCurrentFrame(WebKit::WebVideoFrame* frame) {
+  scoped_refptr<media::VideoFrame> video_frame = WebVideoFrameImpl::toVideoFrame(frame);
+  proxy_->PutCurrentFrame(video_frame);
+}
+
 }  // namespace webkit_glue