UMA stats for browser/renderer audio rendering buffer size mismatch.

media/base/ipc/media_param_traits.cc

 // Copyright 2016 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/ipc/media_param_traits.h"
 
 #include "base/strings/stringprintf.h"
 #include "ipc/ipc_message_utils.h"
 #include "media/base/audio_parameters.h"
 #include "media/base/audio_point.h"
 #include "media/base/limits.h"
 #include "media/base/video_capture_types.h"
 #include "ui/gfx/ipc/geometry/gfx_param_traits.h"
 #include "ui/gfx/ipc/gfx_param_traits.h"
 #include "ui/gfx/ipc/skia/gfx_skia_param_traits.h"
 
 using media::AudioParameters;
+using media::AudioLatency;
 using media::ChannelLayout;
 using media::VideoCaptureFormat;
 
 namespace IPC {
 
 void ParamTraits<AudioParameters>::GetSize(base::PickleSizer* s,
                                            const AudioParameters& p) {
   GetParamSize(s, p.format());
   GetParamSize(s, p.channel_layout());
   GetParamSize(s, p.sample_rate());
   GetParamSize(s, p.bits_per_sample());
   GetParamSize(s, p.frames_per_buffer());
   GetParamSize(s, p.channels());
   GetParamSize(s, p.effects());
   GetParamSize(s, p.mic_positions());
+  GetParamSize(s, p.latency_tag());
 }
 
 void ParamTraits<AudioParameters>::Write(base::Pickle* m,
                                          const AudioParameters& p) {
   WriteParam(m, p.format());
   WriteParam(m, p.channel_layout());
   WriteParam(m, p.sample_rate());
   WriteParam(m, p.bits_per_sample());
   WriteParam(m, p.frames_per_buffer());
   WriteParam(m, p.channels());
   WriteParam(m, p.effects());
   WriteParam(m, p.mic_positions());
+  WriteParam(m, p.latency_tag());
 }
 
 bool ParamTraits<AudioParameters>::Read(const base::Pickle* m,
                                         base::PickleIterator* iter,
                                         AudioParameters* r) {
   AudioParameters::Format format;
   ChannelLayout channel_layout;
   int sample_rate, bits_per_sample, frames_per_buffer, channels, effects;
   std::vector<media::Point> mic_positions;
+  AudioLatency::LatencyType latency_tag;
 
   if (!ReadParam(m, iter, &format) || !ReadParam(m, iter, &channel_layout) ||
       !ReadParam(m, iter, &sample_rate) ||
       !ReadParam(m, iter, &bits_per_sample) ||
       !ReadParam(m, iter, &frames_per_buffer) ||
       !ReadParam(m, iter, &channels) || !ReadParam(m, iter, &effects) ||
-      !ReadParam(m, iter, &mic_positions)) {
+      !ReadParam(m, iter, &mic_positions) ||
+      !ReadParam(m, iter, &latency_tag)) {
     return false;
   }
 
   AudioParameters params(format, channel_layout, sample_rate, bits_per_sample,
                          frames_per_buffer);
   params.set_channels_for_discrete(channels);
   params.set_effects(effects);
   params.set_mic_positions(mic_positions);
+  params.set_latency_tag(latency_tag);
 
   *r = params;
   return r->IsValid();
 }
 
 void ParamTraits<AudioParameters>::Log(const AudioParameters& p,
                                        std::string* l) {
   l->append(base::StringPrintf("<AudioParameters>"));
 }
 
@@ skipping 53 matching lines @@
 #undef MEDIA_BASE_IPC_MEDIA_PARAM_TRAITS_MACROS_H_
 #include "media/base/ipc/media_param_traits_macros.h"
 }  // namespace IPC
 
 // Generate param traits log methods.
 #include "ipc/param_traits_log_macros.h"
 namespace IPC {
 #undef MEDIA_BASE_IPC_MEDIA_PARAM_TRAITS_MACROS_H_
 #include "media/base/ipc/media_param_traits_macros.h"
 }  // namespace IPC