Rename VideoScheduler->VideoFramePipe.

remoting/host/video_frame_pump.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2015 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 "remoting/host/video_scheduler.h"
+#include "remoting/host/video_frame_pump.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/task_runner_util.h"
 #include "base/time/time.h"
@@ skipping 29 matching lines @@
 
 // Interval between empty keep-alive frames. These frames are sent only when the
 // stream is paused or inactive for some other reason (e.g. when blocked on
 // capturer). To prevent PseudoTCP from resetting congestion window this value
 // must be smaller than the minimum RTO used in PseudoTCP, which is 250ms.
 static const int kKeepAlivePacketIntervalMs = 200;
 
 static bool g_enable_timestamps = false;
 
 // static
-void VideoScheduler::EnableTimestampsForTests() {
+void VideoFramePump::EnableTimestampsForTests() {
   g_enable_timestamps = true;
 }
 
-VideoScheduler::VideoScheduler(
+VideoFramePump::VideoFramePump(
     scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> network_task_runner,
     scoped_ptr<webrtc::DesktopCapturer> capturer,
     scoped_ptr<webrtc::MouseCursorMonitor> mouse_cursor_monitor,
     scoped_ptr<VideoEncoder> encoder,
     protocol::CursorShapeStub* cursor_stub,
     protocol::VideoStub* video_stub)
     : capture_task_runner_(capture_task_runner),
       encode_task_runner_(encode_task_runner),
       network_task_runner_(network_task_runner),
       capturer_(capturer.Pass()),
       mouse_cursor_monitor_(mouse_cursor_monitor.Pass()),
       encoder_(encoder.Pass()),
       cursor_stub_(cursor_stub),
       video_stub_(video_stub),
       latest_event_timestamp_(0) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
   DCHECK(capturer_);
   DCHECK(mouse_cursor_monitor_);
   DCHECK(encoder_);
   DCHECK(cursor_stub_);
   DCHECK(video_stub_);
 }
 
 // Public methods --------------------------------------------------------------
 
-void VideoScheduler::Start() {
+void VideoFramePump::Start() {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
-  keep_alive_timer_.reset(new base::DelayTimer<VideoScheduler>(
+  keep_alive_timer_.reset(new base::DelayTimer<VideoFramePump>(
       FROM_HERE, base::TimeDelta::FromMilliseconds(kKeepAlivePacketIntervalMs),
-      this, &VideoScheduler::SendKeepAlivePacket));
+      this, &VideoFramePump::SendKeepAlivePacket));
 
   capture_scheduler_.reset(new CaptureScheduler(
-      base::Bind(&VideoScheduler::CaptureNextFrame, this)));
+      base::Bind(&VideoFramePump::CaptureNextFrame, this)));
   capture_scheduler_->Start();
 
   capture_task_runner_->PostTask(
-      FROM_HERE, base::Bind(&VideoScheduler::StartOnCaptureThread, this));
+      FROM_HERE, base::Bind(&VideoFramePump::StartOnCaptureThread, this));
 }
 
-void VideoScheduler::Stop() {
+void VideoFramePump::Stop() {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   // Clear stubs to prevent further updates reaching the client.
   cursor_stub_ = nullptr;
   video_stub_ = nullptr;
 
   capture_scheduler_.reset();
   keep_alive_timer_.reset();
 
   capture_task_runner_->PostTask(
-      FROM_HERE, base::Bind(&VideoScheduler::StopOnCaptureThread, this));
+      FROM_HERE, base::Bind(&VideoFramePump::StopOnCaptureThread, this));
 }
 
-void VideoScheduler::Pause(bool pause) {
+void VideoFramePump::Pause(bool pause) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   capture_scheduler_->Pause(pause);
 }
 
-void VideoScheduler::SetLatestEventTimestamp(int64 latest_event_timestamp) {
+void VideoFramePump::SetLatestEventTimestamp(int64 latest_event_timestamp) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   latest_event_timestamp_ = latest_event_timestamp;
 }
 
-void VideoScheduler::SetLosslessEncode(bool want_lossless) {
+void VideoFramePump::SetLosslessEncode(bool want_lossless) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   encode_task_runner_->PostTask(
       FROM_HERE, base::Bind(&VideoEncoder::SetLosslessEncode,
                             base::Unretained(encoder_.get()), want_lossless));
 }
 
-void VideoScheduler::SetLosslessColor(bool want_lossless) {
+void VideoFramePump::SetLosslessColor(bool want_lossless) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   encode_task_runner_->PostTask(
       FROM_HERE, base::Bind(&VideoEncoder::SetLosslessColor,
                             base::Unretained(encoder_.get()), want_lossless));
 }
 
 // Private methods -----------------------------------------------------------
 
-VideoScheduler::~VideoScheduler() {
+VideoFramePump::~VideoFramePump() {
   // Destroy the capturer and encoder on their respective threads.
   capture_task_runner_->DeleteSoon(FROM_HERE, capturer_.release());
   capture_task_runner_->DeleteSoon(FROM_HERE, mouse_cursor_monitor_.release());
   encode_task_runner_->DeleteSoon(FROM_HERE, encoder_.release());
 }
 
 // Capturer thread -------------------------------------------------------------
 
-webrtc::SharedMemory* VideoScheduler::CreateSharedMemory(size_t size) {
+webrtc::SharedMemory* VideoFramePump::CreateSharedMemory(size_t size) {
   return nullptr;
 }
 
-void VideoScheduler::OnCaptureCompleted(webrtc::DesktopFrame* frame) {
+void VideoFramePump::OnCaptureCompleted(webrtc::DesktopFrame* frame) {
   DCHECK(capture_task_runner_->BelongsToCurrentThread());
 
   network_task_runner_->PostTask(
-      FROM_HERE, base::Bind(&VideoScheduler::EncodeAndSendFrame, this,
+      FROM_HERE, base::Bind(&VideoFramePump::EncodeAndSendFrame, this,
                             base::Passed(make_scoped_ptr(frame))));
 }
 
-void VideoScheduler::OnMouseCursor(webrtc::MouseCursor* cursor) {
+void VideoFramePump::OnMouseCursor(webrtc::MouseCursor* cursor) {
   DCHECK(capture_task_runner_->BelongsToCurrentThread());
 
   scoped_ptr<webrtc::MouseCursor> owned_cursor(cursor);
 
   scoped_ptr<protocol::CursorShapeInfo> cursor_proto(
       new protocol::CursorShapeInfo());
   cursor_proto->set_width(cursor->image()->size().width());
   cursor_proto->set_height(cursor->image()->size().height());
   cursor_proto->set_hotspot_x(cursor->hotspot().x());
   cursor_proto->set_hotspot_y(cursor->hotspot().y());
 
   cursor_proto->set_data(std::string());
   uint8_t* current_row = cursor->image()->data();
   for (int y = 0; y < cursor->image()->size().height(); ++y) {
     cursor_proto->mutable_data()->append(
         current_row,
         current_row + cursor->image()->size().width() *
             webrtc::DesktopFrame::kBytesPerPixel);
     current_row += cursor->image()->stride();
   }
 
   network_task_runner_->PostTask(
-      FROM_HERE, base::Bind(&VideoScheduler::SendCursorShape, this,
+      FROM_HERE, base::Bind(&VideoFramePump::SendCursorShape, this,
                             base::Passed(&cursor_proto)));
 }
 
-void VideoScheduler::OnMouseCursorPosition(
+void VideoFramePump::OnMouseCursorPosition(
     webrtc::MouseCursorMonitor::CursorState state,
     const webrtc::DesktopVector& position) {
   // We're not subscribing to mouse position changes.
   NOTREACHED();
 }
 
-void VideoScheduler::StartOnCaptureThread() {
+void VideoFramePump::StartOnCaptureThread() {
   DCHECK(capture_task_runner_->BelongsToCurrentThread());
 
   mouse_cursor_monitor_->Init(this, webrtc::MouseCursorMonitor::SHAPE_ONLY);
   capturer_->Start(this);
 }
 
-void VideoScheduler::StopOnCaptureThread() {
+void VideoFramePump::StopOnCaptureThread() {
   DCHECK(capture_task_runner_->BelongsToCurrentThread());
 
   // This doesn't deleted already captured frames, so encoder can keep using the
   // frames that were captured previously.
   capturer_.reset();
 
   mouse_cursor_monitor_.reset();
 }
 
-void VideoScheduler::CaptureNextFrameOnCaptureThread() {
+void VideoFramePump::CaptureNextFrameOnCaptureThread() {
   DCHECK(capture_task_runner_->BelongsToCurrentThread());
 
   // Capture mouse shape first and then screen content.
   mouse_cursor_monitor_->Capture();
   capturer_->Capture(webrtc::DesktopRegion());
 }
 
 // Network thread --------------------------------------------------------------
 
-void VideoScheduler::CaptureNextFrame() {
+void VideoFramePump::CaptureNextFrame() {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   capture_task_runner_->PostTask(
       FROM_HERE,
-      base::Bind(&VideoScheduler::CaptureNextFrameOnCaptureThread, this));
+      base::Bind(&VideoFramePump::CaptureNextFrameOnCaptureThread, this));
 }
 
-void VideoScheduler::EncodeAndSendFrame(
+void VideoFramePump::EncodeAndSendFrame(
     scoped_ptr<webrtc::DesktopFrame> frame) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   if (!video_stub_)
     return;
 
   capture_scheduler_->OnCaptureCompleted();
 
   // Even when |frame| is nullptr we still need to post it to the encode thread
   // to make sure frames are freed in the same order they are received and
   // that we don't start capturing frame n+2 before frame n is freed.
   base::PostTaskAndReplyWithResult(
       encode_task_runner_.get(), FROM_HERE,
       base::Bind(&EncodeFrame, encoder_.get(), base::Passed(&frame)),
-      base::Bind(&VideoScheduler::SendEncodedFrame, this,
+      base::Bind(&VideoFramePump::SendEncodedFrame, this,
                  latest_event_timestamp_, base::TimeTicks::Now()));
 }
 
-void VideoScheduler::SendEncodedFrame(int64 latest_event_timestamp,
+void VideoFramePump::SendEncodedFrame(int64 latest_event_timestamp,
                                       base::TimeTicks timestamp,
                                       scoped_ptr<VideoPacket> packet) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   if (!video_stub_)
     return;
 
   if (g_enable_timestamps)
     packet->set_timestamp(timestamp.ToInternalValue());
 
   packet->set_latest_event_timestamp(latest_event_timestamp);
 
   capture_scheduler_->OnFrameEncoded(
       base::TimeDelta::FromMilliseconds(packet->encode_time_ms()));
 
   video_stub_->ProcessVideoPacket(
-      packet.Pass(), base::Bind(&VideoScheduler::OnVideoPacketSent, this));
+      packet.Pass(), base::Bind(&VideoFramePump::OnVideoPacketSent, this));
 }
 
-void VideoScheduler::OnVideoPacketSent() {
+void VideoFramePump::OnVideoPacketSent() {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   if (!video_stub_)
     return;
 
   capture_scheduler_->OnFrameSent();
   keep_alive_timer_->Reset();
 }
 
-void VideoScheduler::SendKeepAlivePacket() {
+void VideoFramePump::SendKeepAlivePacket() {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   video_stub_->ProcessVideoPacket(
       make_scoped_ptr(new VideoPacket()),
-      base::Bind(&VideoScheduler::OnKeepAlivePacketSent, this));
+      base::Bind(&VideoFramePump::OnKeepAlivePacketSent, this));
 }
 
-void VideoScheduler::OnKeepAlivePacketSent() {
+void VideoFramePump::OnKeepAlivePacketSent() {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   if (keep_alive_timer_)
     keep_alive_timer_->Reset();
 }
 
-void VideoScheduler::SendCursorShape(
+void VideoFramePump::SendCursorShape(
     scoped_ptr<protocol::CursorShapeInfo> cursor_shape) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   if (!cursor_stub_)
     return;
 
   cursor_stub_->SetCursorShape(*cursor_shape);
 }
 
 }  // namespace remoting