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// 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 <stdint.h>
#include "base/macros.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/media_stream_buffer_manager.h"
#include "ppapi/shared_impl/resource.h"
#include "ppapi/thunk/ppb_audio_encoder_api.h"
namespace ppapi {
class TrackedCallback;
namespace proxy {
class AudioBufferResource;
class PPAPI_PROXY_EXPORT AudioEncoderResource
: public PluginResource,
public thunk::PPB_AudioEncoder_API,
public ppapi::MediaStreamBufferManager::Delegate {
public:
AudioEncoderResource(Connection connection, PP_Instance instance);
~AudioEncoderResource() override;
thunk::PPB_AudioEncoder_API* AsPPB_AudioEncoder_API() override;
private:
// MediaStreamBufferManager::Delegate implementation.
void OnNewBufferEnqueued() override {}
// PPB_AudioEncoder_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;
// PluginResource implementation.
void OnReplyReceived(const ResourceMessageReplyParams& params,
const IPC::Message& msg) override;
// Message handlers for the host's messages.
void OnPluginMsgGetSupportedProfilesReply(
const PP_ArrayOutput& output,
const ResourceMessageReplyParams& params,
const std::vector<PP_AudioProfileDescription>& profiles);
void OnPluginMsgInitializeReply(const ResourceMessageReplyParams& params,
int32_t number_of_samples,
int32_t audio_buffer_count,
int32_t audio_buffer_size,
int32_t bitstream_buffer_count,
int32_t bitstream_buffer_size);
void OnPluginMsgEncodeReply(const ResourceMessageReplyParams& params,
int32_t buffer_id);
void OnPluginMsgBitstreamBufferReady(const ResourceMessageReplyParams& params,
int32_t buffer_id);
void OnPluginMsgNotifyError(const ResourceMessageReplyParams& params,
int32_t error);
// Internal utility functions.
void NotifyError(int32_t error);
void TryGetAudioBuffer();
void TryWriteBitstreamBuffer();
void ReleaseBuffers();
int32_t encoder_last_error_;
bool initialized_;
uint32_t number_of_samples_;
using AudioBufferMap =
std::map<PP_Resource, scoped_refptr<AudioBufferResource>>;
AudioBufferMap audio_buffers_;
scoped_refptr<TrackedCallback> get_supported_profiles_callback_;
scoped_refptr<TrackedCallback> initialize_callback_;
scoped_refptr<TrackedCallback> get_buffer_callback_;
PP_Resource* get_buffer_data_;
using EncodeMap = std::map<int32_t, scoped_refptr<TrackedCallback>>;
EncodeMap encode_callbacks_;
scoped_refptr<TrackedCallback> get_bitstream_buffer_callback_;
PP_AudioBitstreamBuffer* get_bitstream_buffer_data_;
MediaStreamBufferManager audio_buffer_manager_;
MediaStreamBufferManager bitstream_buffer_manager_;
// Map of bitstream buffer pointers to buffer ids.
using BufferMap = std::map<void*, int32_t>;
BufferMap bitstream_buffer_map_;
DISALLOW_COPY_AND_ASSIGN(AudioEncoderResource);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_AUDIO_ENCODER_RESOURCE_H_
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