Index: content/renderer/media/video_source_handler.cc |
=================================================================== |
--- content/renderer/media/video_source_handler.cc (revision 0) |
+++ content/renderer/media/video_source_handler.cc (revision 0) |
@@ -0,0 +1,112 @@ |
+// 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_source_handler.h" |
+ |
+#include <string> |
+ |
+#include "base/logging.h" |
+#include "content/renderer/media/media_stream_dependency_factory.h" |
+#include "content/renderer/render_thread_impl.h" |
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaStreamRegistry.h" |
+ |
+using cricket::VideoFrame; |
+using webrtc::VideoSourceInterface; |
+ |
+namespace content { |
+ |
+PpFrameReader::PpFrameReader() { |
+} |
+ |
+PpFrameReader::~PpFrameReader() { |
+} |
+ |
+bool PpFrameReader::SetSize(int width, int height, int reserved) { |
+ return true; |
+} |
+ |
+bool PpFrameReader::RenderFrame(const VideoFrame* frame) { |
+ base::AutoLock auto_lock(lock_); |
+ // Make a shallow copy of the frame. Both frames will share a single |
+ // reference-counted frame buffer. |
+ last_frame_.reset(frame->Copy()); |
+ return true; |
+} |
+ |
+bool PpFrameReader::GetFrame(VideoFrame** frame) { |
+ base::AutoLock auto_lock(lock_); |
+ *frame = last_frame_.release(); |
+ return true; |
+} |
+ |
+VideoSourceHandler::VideoSourceHandler( |
+ MediaStreamDependencyFactory* factory, |
+ MediaStreamRegistryInterface* registry) |
wjia(left Chromium)
2013/04/30 18:32:11
How is it guaranteed that we won't have use-after-
Ronghua Wu (Left Chromium)
2013/04/30 22:42:17
The VideoSourceHandler doesn't take the ownership
|
+ : factory_(factory), |
+ registry_(registry) { |
+ ASSERT(factory_ != NULL); |
+} |
+ |
+bool VideoSourceHandler::Open(const std::string& url, |
+ FrameReaderInterface** frame_reader) { |
+ scoped_refptr<webrtc::VideoSourceInterface> source = GetFirstVideoSource(url); |
+ if (!source.get()) { |
+ return false; |
+ } |
+ PpFrameReader* new_frame_reader = new PpFrameReader(); |
wjia(left Chromium)
2013/04/30 18:32:11
It seems that PpFrameReader is an internal class t
Ronghua Wu (Left Chromium)
2013/04/30 22:42:17
Correct, I left it in the header more for the test
|
+ source->AddSink(new_frame_reader); |
+ *frame_reader = new_frame_reader; |
+ return true; |
+} |
+ |
+bool VideoSourceHandler::Close(const std::string& url, |
+ FrameReaderInterface* frame_reader) { |
+ scoped_refptr<webrtc::VideoSourceInterface> source = GetFirstVideoSource(url); |
+ if (!source.get()) { |
+ return false; |
+ } |
+ PpFrameReader* pp_frame_reader = static_cast<PpFrameReader*>(frame_reader); |
+ source->RemoveSink(pp_frame_reader); |
+ return true; |
+} |
+ |
+scoped_refptr<VideoSourceInterface> VideoSourceHandler::GetFirstVideoSource( |
wjia(left Chromium)
2013/04/30 18:32:11
Is it possible move this function into media_strea
Ronghua Wu (Left Chromium)
2013/04/30 22:42:17
I think MediaStreamImpl is suppose be used by WebK
|
+ const std::string& url) { |
+ scoped_refptr<webrtc::VideoSourceInterface> source; |
+ WebKit::WebMediaStream stream; |
+ if (registry_) { |
+ stream = registry_->GetMediaStream(url); |
+ } else { |
+ stream = |
+ WebKit::WebMediaStreamRegistry::lookupMediaStreamDescriptor(GURL(url)); |
+ } |
+ if (stream.isNull() || !stream.extraData()) { |
+ LOG(ERROR) << "GetFirstVideoSource - invalid url: " << url; |
+ return source; |
+ } |
+ |
+ // Get the first video track from the stream. |
+ MediaStreamExtraData* extra_data = |
+ static_cast<MediaStreamExtraData*>(stream.extraData()); |
+ if (!extra_data) { |
+ LOG(ERROR) << "GetFirstVideoSource - MediaStreamExtraData is NULL."; |
+ return source; |
+ } |
+ webrtc::MediaStreamInterface* native_stream = extra_data->stream(); |
+ if (!native_stream) { |
+ LOG(ERROR) << "GetFirstVideoSource - native stream is NULL."; |
+ return source; |
+ } |
+ webrtc::VideoTrackVector native_video_tracks = |
+ native_stream->GetVideoTracks(); |
+ if (native_video_tracks.empty()) { |
+ LOG(ERROR) << "GetFirstVideoSource - stream has no video track."; |
+ return source; |
+ } |
+ source = native_video_tracks[0]->GetSource(); |
+ return source; |
+} |
+ |
+} // namespace content |
+ |
Property changes on: content/renderer/media/video_source_handler.cc |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |