Log PipelineImpl events to MediaLog.

media/base/media_log.cc

Index: media/base/media_log.cc
diff --git a/media/base/media_log.cc b/media/base/media_log.cc
index 38be1269b1b81bb83da062348afd9b149d0f1d80..15bca418cec6939953eebb2de2253c80ee1a877a 100644
--- a/media/base/media_log.cc
+++ b/media/base/media_log.cc
@@ -7,6 +7,7 @@
 #include "base/atomic_sequence_num.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
+#include "base/values.h"
 
 namespace media {
 
@@ -16,16 +17,24 @@ static base::AtomicSequenceNumber media_log_count(base::LINKER_INITIALIZED);
 
 const char* MediaLog::EventTypeToString(MediaLogEvent::Type type) {
   switch (type) {
-    case MediaLogEvent::CREATING:
-      return "CREATING";
-    case MediaLogEvent::DESTROYING:
-      return "DESTROYING";
+    case MediaLogEvent::WEBMEDIAPLAYER_CREATED:
+      return "WEBMEDIAPLAYER_CREATED";
+    case MediaLogEvent::WEBMEDIAPLAYER_DESTROYED:
+      return "WEBMEDIAPLAYER_DESTROYED";
+    case MediaLogEvent::PIPELINE_CREATED:
+      return "PIPELINE_CREATED";
+    case MediaLogEvent::PIPELINE_DESTROYED:
+      return "PIPELINE_DESTROYED";
     case MediaLogEvent::LOAD:
       return "LOAD";
+    case MediaLogEvent::SEEK:
+      return "SEEK";
     case MediaLogEvent::PLAY:
       return "PLAY";
     case MediaLogEvent::PAUSE:
       return "PAUSE";
+    case MediaLogEvent::PIPELINE_STATE_CHANGED:
+      return "PIPELINE_STATE_CHANGED";
     case MediaLogEvent::BUFFERED_EXTENTS_CHANGED:
       return "BUFFERED_EXTENTS_CHANGED";
   }
@@ -33,6 +42,43 @@ const char* MediaLog::EventTypeToString(MediaLogEvent::Type type) {
   return NULL;
 }
 
+const char* MediaLog::PipelineStateToString(PipelineImpl::State state) {
+  switch (state) {
+    case PipelineImpl::kCreated:
+      return "created";
+    case PipelineImpl::kInitDemuxer:
+      return "initDemuxer";
+    case PipelineImpl::kInitAudioDecoder:
+      return "initAudioDecoder";
+    case PipelineImpl::kInitAudioRenderer:
+      return "initAudioRenderer";
+    case PipelineImpl::kInitVideoDecoder:
+      return "initVideoDecoder";
+    case PipelineImpl::kInitVideoRenderer:
+      return "initVideoRenderer";
+    case PipelineImpl::kPausing:
+      return "pausing";
+    case PipelineImpl::kSeeking:
+      return "seeking";
+    case PipelineImpl::kFlushing:
+      return "flushing";
+    case PipelineImpl::kStarting:
+      return "starting";
+    case PipelineImpl::kStarted:
+      return "started";
+    case PipelineImpl::kEnded:
+      return "ended";
+    case PipelineImpl::kStopping:
+      return "stopping";
+    case PipelineImpl::kStopped:
+      return "stopped";
+    case PipelineImpl::kError:
+      return "error";
+  }
+  NOTREACHED();
+  return NULL;
+}
+
 MediaLog::MediaLog() {
   id_ = media_log_count.GetNext();
 }
@@ -57,6 +103,20 @@ MediaLogEvent* MediaLog::CreateLoadEvent(const std::string& url) {
   return event.release();
 }
 
+MediaLogEvent* MediaLog::CreateSeekEvent(float seconds) {
+  scoped_ptr<MediaLogEvent> event(CreateEvent(MediaLogEvent::SEEK));
+  event->params.SetDouble("seek_target", seconds);
+  return event.release();
+}
+
+MediaLogEvent* MediaLog::CreatePipelineStateChangedEvent(
+    PipelineImpl::State state) {
+  scoped_ptr<MediaLogEvent> event(
+      CreateEvent(MediaLogEvent::PIPELINE_STATE_CHANGED));
+  event->params.SetString("pipeline_state", PipelineStateToString(state));
+  return event.release();
+}
+
 MediaLogEvent* MediaLog::CreateBufferedExtentsChangedEvent(
     size_t start, size_t current, size_t end) {
   scoped_ptr<MediaLogEvent> event(