Video capture frame size: separate coded size and visible size.

content/renderer/media/video_capture_impl.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.
 //
 // Notes about usage of this object by VideoCaptureImplManager.
 //
 // VideoCaptureImplManager access this object by using a Unretained()
 // binding and tasks on the IO thread. It is then important that
 // VideoCaptureImpl never post task to itself. All operations must be
 // synchronous.
@@ skipping 188 matching lines @@
   if (iter == client_buffers_.end())
     return;
 
   DCHECK(!iter->second.get() || iter->second->HasOneRef())
       << "Instructed to delete buffer we are still using.";
   client_buffers_.erase(iter);
 }
 
 void VideoCaptureImpl::OnBufferReceived(int buffer_id,
                                         const media::VideoCaptureFormat& format,
+                                        const gfx::Rect& visible_rect,
                                         base::TimeTicks timestamp) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   // The capture pipeline supports only I420 for now.
   DCHECK_EQ(format.pixel_format, media::PIXEL_FORMAT_I420);
 
   if (state_ != VIDEO_CAPTURE_STATE_STARTED || suspended_) {
     Send(new VideoCaptureHostMsg_BufferReady(device_id_, buffer_id, 0));
     return;
   }
 
   last_frame_format_ = format;
   if (first_frame_timestamp_.is_null())
     first_frame_timestamp_ = timestamp;
 
   // Used by chrome/browser/extension/api/cast_streaming/performance_test.cc
   TRACE_EVENT_INSTANT2(
       "cast_perf_test", "OnBufferReceived",
       TRACE_EVENT_SCOPE_THREAD,
       "timestamp", timestamp.ToInternalValue(),
       "time_delta", (timestamp - first_frame_timestamp_).ToInternalValue());
 
   ClientBufferMap::iterator iter = client_buffers_.find(buffer_id);
   DCHECK(iter != client_buffers_.end());
   scoped_refptr<ClientBuffer> buffer = iter->second;
   scoped_refptr<media::VideoFrame> frame =
       media::VideoFrame::WrapExternalPackedMemory(
           media::VideoFrame::I420,
           last_frame_format_.frame_size,
-          gfx::Rect(last_frame_format_.frame_size),
-          last_frame_format_.frame_size,
+          visible_rect,
+          gfx::Size(visible_rect.width(), visible_rect.height()),
           reinterpret_cast<uint8*>(buffer->buffer->memory()),
           buffer->buffer_size,
           buffer->buffer->handle(),
           timestamp - first_frame_timestamp_,
           media::BindToCurrentLoop(
               base::Bind(&VideoCaptureImpl::OnClientBufferFinished,
                          weak_factory_.GetWeakPtr(),
                          buffer_id,
                          buffer,
                          0)));
@@ skipping 183 matching lines @@
   ClientInfoMap::iterator it = clients->find(client_id);
   if (it != clients->end()) {
     it->second.state_update_cb.Run(VIDEO_CAPTURE_STATE_STOPPED);
     clients->erase(it);
     found = true;
   }
   return found;
 }
 
 }  // namespace content