Index: content/renderer/media/video_destination_handler.cc |
=================================================================== |
--- content/renderer/media/video_destination_handler.cc (revision 0) |
+++ content/renderer/media/video_destination_handler.cc (revision 0) |
@@ -0,0 +1,123 @@ |
+// 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 "content/renderer/media/video_destination_handler.h" |
+ |
+#include <string> |
+ |
+#include "base/logging.h" |
+#include "content/renderer/media/media_stream_dependency_factory.h" |
+#include "content/renderer/media/media_stream_registry_interface.h" |
+#include "content/renderer/render_thread_impl.h" |
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaStreamRegistry.h" |
+ |
+using cricket::CaptureState; |
+using cricket::VideoFormat; |
+ |
+static const cricket::FourCC kEffectColorFormat = cricket::FOURCC_BGRA; |
+ |
+namespace content { |
+ |
+PpFrameWriter::PpFrameWriter() |
+ : started_(false) {} |
+ |
+PpFrameWriter::~PpFrameWriter() {} |
+ |
+CaptureState PpFrameWriter::Start(const VideoFormat& capture_format) { |
+ if (started_) { |
+ LOG(ERROR) << "PpFrameWriter::Start - " |
+ << "Got a StartCapture when already started!"; |
+ return cricket::CS_FAILED; |
+ } |
+ started_ = true; |
+ return cricket::CS_STARTING; |
+} |
+ |
+void PpFrameWriter::Stop() { |
+ started_ = false; |
+ SignalStateChange(this, cricket::CS_STOPPED); |
+} |
+ |
+bool PpFrameWriter::IsRunning() { |
+ return started_; |
+} |
+ |
+bool PpFrameWriter::GetPreferredFourccs(std::vector<uint32>* fourccs) { |
+ if (!fourccs) { |
+ LOG(ERROR) << "PpFrameWriter::GetPreferredFourccs - " |
+ << "fourccs is NULL."; |
+ return false; |
+ } |
+ // The effects plugin output BGRA. |
+ fourccs->push_back(kEffectColorFormat); |
+ return true; |
+} |
+ |
+bool PpFrameWriter::GetBestCaptureFormat(const VideoFormat& desired, |
+ VideoFormat* best_format) { |
+ if (!best_format) { |
+ LOG(ERROR) << "PpFrameWriter::GetBestCaptureFormat - " |
+ << "best_format is NULL."; |
+ return false; |
+ return false; |
juberti
2013/04/30 22:54:49
once is enough
Ronghua Wu (Left Chromium)
2013/04/30 23:07:14
indeed.
|
+ } |
+ |
+ // Use the desired format as the best format. |
+ // TODO(ronghuawu): How to handle this better? |
juberti
2013/04/30 22:54:49
I think this approach is fine.
Ronghua Wu (Left Chromium)
2013/04/30 23:07:14
Done.
|
+ best_format->width = desired.width; |
+ best_format->height = desired.height; |
+ best_format->fourcc = kEffectColorFormat; |
+ best_format->interval = desired.interval; |
+ return true; |
+} |
+ |
+bool PpFrameWriter::IsScreencast() const { |
+ return false; |
+} |
+ |
+void PpFrameWriter::PutFrame(cricket::CapturedFrame* frame) { |
juberti
2013/04/30 22:54:49
Should this take an ImageData, so the surrounding
Ronghua Wu (Left Chromium)
2013/04/30 23:07:14
I talked to Bill about this he thought we should u
|
+ // This signals to libJingle that a new VideoFrame is available. |
+ // libJingle have no assumptions on what thread this signal come from. |
+ SignalFrameCaptured(this, frame); |
+} |
+ |
+VideoDestinationHandler::VideoDestinationHandler( |
+ MediaStreamDependencyFactory* factory, |
+ MediaStreamRegistryInterface* registry) |
+ : factory_(factory), |
+ registry_(registry) { |
+ ASSERT(factory_ != NULL); |
+} |
+ |
+bool VideoDestinationHandler::Open( |
+ const std::string& url, FrameWriterInterface** frame_writer) { |
+ WebKit::WebMediaStream stream; |
+ if (registry_) { |
+ stream = registry_->GetMediaStream(url); |
+ } else { |
+ stream = |
+ WebKit::WebMediaStreamRegistry::lookupMediaStreamDescriptor(GURL(url)); |
+ } |
+ if (stream.isNull() || !stream.extraData()) { |
+ LOG(ERROR) << "VideoDestinationHandler::Open - invalid url: " << url; |
+ return false; |
+ } |
+ |
+ // Create a new native video track and add it to |stream|. |
+ std::string track_id = talk_base::ToString(talk_base::CreateRandomId64()); |
+ PpFrameWriter* capturer = new PpFrameWriter(); |
+ if (!factory_->AddNativeVideoMediaTrack(track_id, &stream, capturer)) { |
+ delete capturer; |
+ return false; |
+ } |
+ |
+ *frame_writer = capturer; |
juberti
2013/04/30 22:54:49
should the capturer be Start()ed here, and stopped
Ronghua Wu (Left Chromium)
2013/04/30 23:07:14
Once a capturer is added to the video source, it w
|
+ return true; |
+} |
+ |
+VideoDestinationHandler::~VideoDestinationHandler() { |
+} |
+ |
+} // namespace content |
+ |
Property changes on: content/renderer/media/video_destination_handler.cc |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |