Switch to double for time calculations using playback rate.

media/base/pipeline.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.
 
 #include "media/base/pipeline.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 19 matching lines @@
 namespace media {
 
 Pipeline::Pipeline(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
     MediaLog* media_log)
     : task_runner_(task_runner),
       media_log_(media_log),
       running_(false),
       did_loading_progress_(false),
       volume_(1.0f),
-      playback_rate_(0.0f),
+      playback_rate_(0.0),
       status_(PIPELINE_OK),
       state_(kCreated),
       renderer_ended_(false),
       text_renderer_ended_(false),
       demuxer_(NULL),
       pending_cdm_context_(nullptr),
       weak_factory_(this) {
   media_log_->AddEvent(media_log_->CreatePipelineStateChangedEvent(kCreated));
   media_log_->AddEvent(
       media_log_->CreateEvent(MediaLogEvent::PIPELINE_CREATED));
@@ skipping 66 matching lines @@
       FROM_HERE,
       base::Bind(
           &Pipeline::SeekTask, weak_factory_.GetWeakPtr(), time, seek_cb));
 }
 
 bool Pipeline::IsRunning() const {
   base::AutoLock auto_lock(lock_);
   return running_;
 }
 
-float Pipeline::GetPlaybackRate() const {
+double Pipeline::GetPlaybackRate() const {
   base::AutoLock auto_lock(lock_);
   return playback_rate_;
 }
 
-void Pipeline::SetPlaybackRate(float playback_rate) {
-  if (playback_rate < 0.0f)
+void Pipeline::SetPlaybackRate(double playback_rate) {
+  if (playback_rate < 0.0)
     return;
 
   base::AutoLock auto_lock(lock_);
   playback_rate_ = playback_rate;
   if (running_) {
     task_runner_->PostTask(FROM_HERE,
                            base::Bind(&Pipeline::PlaybackRateChangedTask,
                                       weak_factory_.GetWeakPtr(),
                                       playback_rate));
   }
@@ skipping 404 matching lines @@
   if (state_ == kStopping || state_ == kStopped)
     return;
 
   SetState(kStopping);
   pending_callbacks_.reset();
   status_ = error;
 
   DoStop(base::Bind(&Pipeline::OnStopCompleted, weak_factory_.GetWeakPtr()));
 }
 
-void Pipeline::PlaybackRateChangedTask(float playback_rate) {
+void Pipeline::PlaybackRateChangedTask(double playback_rate) {
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   // Playback rate changes are only carried out while playing.
   if (state_ != kPlaying)
     return;
 
   renderer_->SetPlaybackRate(playback_rate);
 }
 
 void Pipeline::VolumeChangedTask(float volume) {
@@ skipping 167 matching lines @@
   metadata_cb_.Run(metadata);
 }
 
 void Pipeline::BufferingStateChanged(BufferingState new_buffering_state) {
   DVLOG(1) << __FUNCTION__ << "(" << new_buffering_state << ") ";
   DCHECK(task_runner_->BelongsToCurrentThread());
   buffering_state_cb_.Run(new_buffering_state);
 }
 
 }  // namespace media