Reland: Make more media APIs aware of |delay| and |delay_timestamp|

media/renderers/audio_renderer_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.
 
 #include "media/renderers/audio_renderer_impl.h"
 
 #include <math.h>
 #include <stddef.h>
 #include <algorithm>
 #include <utility>
@@ skipping 720 matching lines @@
   }
 }
 
 bool AudioRendererImpl::IsBeforeStartTime(
     const scoped_refptr<AudioBuffer>& buffer) {
   DCHECK_EQ(state_, kPlaying);
   return buffer.get() && !buffer->end_of_stream() &&
          (buffer->timestamp() + buffer->duration()) < start_timestamp_;
 }
 
-int AudioRendererImpl::Render(AudioBus* audio_bus,
-                              uint32_t frames_delayed,
-                              uint32_t frames_skipped) {
+int AudioRendererImpl::Render(base::TimeDelta delay,
+                              base::TimeTicks delay_timestamp,
+                              int prior_frames_skipped,
+                              AudioBus* audio_bus) {
   const int frames_requested = audio_bus->frames();
-  DVLOG(4) << __func__ << " frames_delayed:" << frames_delayed
-           << " frames_skipped:" << frames_skipped
+  DVLOG(4) << __func__ << " delay:" << delay
+           << " prior_frames_skipped:" << prior_frames_skipped
            << " frames_requested:" << frames_requested;
 
   int frames_written = 0;
   {
     base::AutoLock auto_lock(lock_);
     last_render_time_ = tick_clock_->NowTicks();
 
+    int64_t frames_delayed = AudioTimestampHelper::TimeToFrames(
+        delay, audio_parameters_.sample_rate());
+
     if (!stop_rendering_time_.is_null()) {
       audio_clock_->CompensateForSuspendedWrites(
           last_render_time_ - stop_rendering_time_, frames_delayed);
       stop_rendering_time_ = base::TimeTicks();
     }
 
     // Ensure Stop() hasn't destroyed our |algorithm_| on the pipeline thread.
     if (!algorithm_) {
       audio_clock_->WroteAudio(0, frames_requested, frames_delayed,
                                playback_rate_);
@@ skipping 168 matching lines @@
   DCHECK_NE(buffering_state_, buffering_state);
   lock_.AssertAcquired();
   buffering_state_ = buffering_state;
 
   task_runner_->PostTask(
       FROM_HERE, base::Bind(&AudioRendererImpl::OnBufferingStateChange,
                             weak_factory_.GetWeakPtr(), buffering_state_));
 }
 
 }  // namespace media