Check in missing files from r138642.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@138644 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 97 insertions, 0 deletions

diff --git a/media/base/audio_renderer.h b/media/base/audio_renderer.h
new file mode 100644
index 0000000..0c9c582
--- /dev/null
+++ b/media/base/audio_renderer.h
@@ -0,0 +1,55 @@
+// 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.
+
+#ifndef MEDIA_BASE_AUDIO_RENDERER_H_
+#define MEDIA_BASE_AUDIO_RENDERER_H_
+
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "base/time.h"
+#include "media/base/filters.h"
+#include "media/base/media_export.h"
+#include "media/base/pipeline_status.h"
+
+namespace media {
+
+class AudioDecoder;
+
+class MEDIA_EXPORT AudioRenderer : public Filter {
+ public:
+  // Used to update the pipeline's clock time. The first parameter is the
+  // current time, and the second parameter is the time that the clock must not
+  // exceed.
+  typedef base::Callback<void(base::TimeDelta, base::TimeDelta)> TimeCB;
+
+  // Initialize a AudioRenderer with the given AudioDecoder, executing the
+  // |init_cb| upon completion. |underflow_cb| is called when the
+  // renderer runs out of data to pass to the audio card during playback.
+  // If the |underflow_cb| is called ResumeAfterUnderflow() must be called
+  // to resume playback. Pause(), Seek(), or Stop() cancels the underflow
+  // condition.
+  virtual void Initialize(const scoped_refptr<AudioDecoder>& decoder,
+                          const PipelineStatusCB& init_cb,
+                          const base::Closure& underflow_cb,
+                          const TimeCB& time_cb) = 0;
+
+  // Returns true if this filter has received and processed an end-of-stream
+  // buffer.
+  virtual bool HasEnded() = 0;
+
+  // Sets the output volume.
+  virtual void SetVolume(float volume) = 0;
+
+  // Resumes playback after underflow occurs.
+  // |buffer_more_audio| is set to true if you want to increase the size of the
+  // decoded audio buffer.
+  virtual void ResumeAfterUnderflow(bool buffer_more_audio) = 0;
+
+ protected:
+  virtual ~AudioRenderer() {}
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_AUDIO_RENDERER_H_
diff --git a/media/base/video_renderer.h b/media/base/video_renderer.h
new file mode 100644
index 0000000..8907610
--- /dev/null
+++ b/media/base/video_renderer.h
@@ -0,0 +1,42 @@
+// 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.
+
+#ifndef MEDIA_BASE_VIDEO_RENDERER_H_
+#define MEDIA_BASE_VIDEO_RENDERER_H_
+
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "base/time.h"
+#include "media/base/filters.h"
+#include "media/base/media_export.h"
+#include "media/base/pipeline_status.h"
+
+namespace media {
+
+class VideoDecoder;
+
+class MEDIA_EXPORT VideoRenderer : public Filter {
+ public:
+  // Used to update the pipeline's clock time. The parameter is the time that
+  // the clock should not exceed.
+  typedef base::Callback<void(base::TimeDelta)> TimeCB;
+
+  // Initialize a VideoRenderer with the given VideoDecoder, executing the
+  // callback upon completion.
+  virtual void Initialize(const scoped_refptr<VideoDecoder>& decoder,
+                          const PipelineStatusCB& status_cb,
+                          const StatisticsCB& statistics_cb,
+                          const TimeCB& time_cb) = 0;
+
+  // Returns true if this filter has received and processed an end-of-stream
+  // buffer.
+  virtual bool HasEnded() = 0;
+
+ protected:
+  virtual ~VideoRenderer() {}
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_VIDEO_RENDERER_H_