Chromecast: adds a media pipeline feeding data to CMA device backends.

chromecast/media/cma/pipeline/media_pipeline_client.h

+// Copyright 2014 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.
+
+#ifndef CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_CLIENT_H_
+#define CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_CLIENT_H_
+
+#include "base/callback.h"
+#include "base/time/time.h"
+#include "media/base/buffering_state.h"
+#include "media/base/pipeline_status.h"
+
+namespace chromecast {
+namespace media {
+
+struct MediaPipelineClient {
+  typedef base::Callback<void(
+      base::TimeDelta, base::TimeDelta, base::TimeTicks)> TimeUpdateCB;
+
+  MediaPipelineClient();
+  ~MediaPipelineClient();
+
+  // Callback used to report a playback error as a ::media::PipelineStatus.
+  ::media::PipelineStatusCB error_cb;
+
+  // Callback used to report the latest playback time,
+  // as well as the maximum time available for rendering.
+  TimeUpdateCB time_update_cb;
+
+  // Callback used to report the buffering status.
+  ::media::BufferingStateCB buffering_state_cb;
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_CLIENT_H_