ppapi: define PPB_AudioEncoder API

ppapi/proxy/audio_encoder_resource.h

+// 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.
+
+#ifndef PPAPI_PROXY_AUDIO_ENCODER_RESOURCE_H_
+#define PPAPI_PROXY_AUDIO_ENCODER_RESOURCE_H_
+
+#include "base/basictypes.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
+#include "ppapi/proxy/connection.h"
+#include "ppapi/proxy/plugin_resource.h"
+#include "ppapi/shared_impl/resource.h"
+#include "ppapi/thunk/ppb_audio_encoder_api.h"
+
+namespace ppapi {
+
+class TrackedCallback;
+
+namespace proxy {
+
+class SerializedHandle;
+class VideoFrameResource;
+
+class PPAPI_PROXY_EXPORT AudioEncoderResource
+    : public PluginResource,
+      public thunk::PPB_AudioEncoder_API {
+ public:
+  AudioEncoderResource(Connection connection, PP_Instance instance);
+  ~AudioEncoderResource() override;
+
+  thunk::PPB_AudioEncoder_API* AsPPB_AudioEncoder_API() override;
+
+ private:
+  // PPB_AduioEncoder_API implementation.
+  int32_t GetSupportedProfiles(
+      const PP_ArrayOutput& output,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  int32_t Initialize(uint32_t channels,
+                     PP_AudioBuffer_SampleRate input_sample_rate,
+                     PP_AudioBuffer_SampleSize input_sample_size,
+                     PP_AudioProfile output_profile,
+                     uint32_t initial_bitrate,
+                     PP_HardwareAcceleration acceleration,
+                     const scoped_refptr<TrackedCallback>& callback) override;
+  int32_t GetNumberOfSamples() override;
+  int32_t GetBuffer(PP_Resource* audio_buffer,
+                    const scoped_refptr<TrackedCallback>& callback) override;
+  int32_t Encode(PP_Resource audio_buffer,
+                 const scoped_refptr<TrackedCallback>& callback) override;
+  int32_t GetBitstreamBuffer(
+      PP_AudioBitstreamBuffer* bitstream_buffer,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  void RecycleBitstreamBuffer(
+      const PP_AudioBitstreamBuffer* bitstream_buffer) override;
+  void RequestBitrateChange(uint32_t bitrate) override;
+  void Close() override;
+
+  DISALLOW_COPY_AND_ASSIGN(AudioEncoderResource);
+};
+
+}  // namespace proxy
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_AUDIO_ENCODER_RESOURCE_H_