Added UMA metrics for MediaSourcePlayer and MediaCodecPlayer

media/base/android/media_codec_video_decoder.cc

 // 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 "media/base/android/media_codec_video_decoder.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "media/base/android/media_codec_bridge.h"
+#include "media/base/android/media_statistics.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/timestamp_constants.h"
 
 namespace media {
 
 namespace {
 const int kDelayForStandAloneEOS = 2;  // milliseconds
 }
 
 MediaCodecVideoDecoder::MediaCodecVideoDecoder(
     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
     const base::Closure& request_data_cb,
     const base::Closure& starvation_cb,
     const base::Closure& decoder_drained_cb,
     const base::Closure& stop_done_cb,
     const base::Closure& key_required_cb,
     const base::Closure& error_cb,
     const SetTimeCallback& update_current_time_cb,
     const VideoSizeChangedCallback& video_size_changed_cb,
-    const base::Closure& codec_created_cb)
+    const base::Closure& codec_created_cb,
+    FrameStatistics* frame_statistics)
     : MediaCodecDecoder(media_task_runner,
                         request_data_cb,
                         starvation_cb,
                         decoder_drained_cb,
                         stop_done_cb,
                         key_required_cb,
                         error_cb,
-                        "VideoDecoder"),
+                        "VideoDecoder",
+                        frame_statistics),
       is_protected_surface_required_(false),
       update_current_time_cb_(update_current_time_cb),
       video_size_changed_cb_(video_size_changed_cb),
       codec_created_cb_(codec_created_cb) {
 }
 
 MediaCodecVideoDecoder::~MediaCodecVideoDecoder() {
   DCHECK(media_task_runner_->BelongsToCurrentThread());
   DVLOG(1) << "VideoDecoder::~VideoDecoder()";
   ReleaseDecoderResources();
@@ skipping 219 matching lines @@
   DCHECK_EQ(kRenderNow, render_mode);
   DCHECK_NE(kNoTimestamp(), start_pts_);  // start_pts_ must be set
 
   base::TimeDelta time_to_render =
       pts - (base::TimeTicks::Now() - start_time_ticks_ + start_pts_);
 
   DVLOG(2) << class_name() << "::" << __FUNCTION__ << " pts:" << pts
            << " ticks delta:" << (base::TimeTicks::Now() - start_time_ticks_)
            << " time_to_render:" << time_to_render;
 
+  const bool render = (size > 0);
+
+  if (render && frame_statistics_)
+    frame_statistics_->AddFrame();
+
   if (time_to_render < base::TimeDelta()) {
+    if (render && frame_statistics_)
+      frame_statistics_->AddLateFrame((-1) * time_to_render);
+
     // Skip late frames
     ReleaseOutputBuffer(buffer_index, pts, false, update_time, eos_encountered);
     return;
   }
 
   delayed_buffers_.insert(buffer_index);
 
-  const bool render = (size > 0);
   decoder_thread_.task_runner()->PostDelayedTask(
       FROM_HERE, base::Bind(&MediaCodecVideoDecoder::ReleaseOutputBuffer,
                             base::Unretained(this), buffer_index, pts, render,
                             update_time, eos_encountered),
       time_to_render);
 }
 
 int MediaCodecVideoDecoder::NumDelayedRenderTasks() const {
   DCHECK(decoder_thread_.task_runner()->BelongsToCurrentThread());
 
@@ skipping 40 matching lines @@
 
   // |update_current_time_cb_| might be null if there is audio stream.
   // Do not update current time for stand-alone EOS frames.
   if (!update_current_time_cb_.is_null() && update_time) {
     media_task_runner_->PostTask(
         FROM_HERE, base::Bind(update_current_time_cb_, pts, pts, false));
   }
 }
 
 }  // namespace media