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content / renderer / pepper / pepper_audio_output_host.h [blame]
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_PEPPER_PEPPER_AUDIO_OUTPUT_HOST_H_
#define CONTENT_RENDERER_PEPPER_PEPPER_AUDIO_OUTPUT_HOST_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/unsafe_shared_memory_region.h"
#include "base/sync_socket.h"
#include "content/renderer/pepper/pepper_device_enumeration_host_helper.h"
#include "ipc/ipc_platform_file.h"
#include "ppapi/c/ppb_audio_config.h"
#include "ppapi/host/host_message_context.h"
#include "ppapi/host/resource_host.h"
namespace content {
class PepperPlatformAudioOutputDev;
class RendererPpapiHostImpl;
class PepperAudioOutputHost : public ppapi::host::ResourceHost {
public:
PepperAudioOutputHost(RendererPpapiHostImpl* host,
PP_Instance instance,
PP_Resource resource);
PepperAudioOutputHost(const PepperAudioOutputHost&) = delete;
PepperAudioOutputHost& operator=(const PepperAudioOutputHost&) = delete;
~PepperAudioOutputHost() override;
int32_t OnResourceMessageReceived(
const IPC::Message& msg,
ppapi::host::HostMessageContext* context) override;
// Called when the stream is created.
void StreamCreated(base::UnsafeSharedMemoryRegion shared_memory_region,
base::SyncSocket::ScopedHandle socket);
void StreamCreationFailed();
void SetVolume(double volume);
private:
int32_t OnOpen(ppapi::host::HostMessageContext* context,
const std::string& device_id,
PP_AudioSampleRate sample_rate,
uint32_t sample_frame_count);
int32_t OnStartOrStop(ppapi::host::HostMessageContext* context,
bool playback);
int32_t OnClose(ppapi::host::HostMessageContext* context);
void OnOpenComplete(int32_t result,
base::UnsafeSharedMemoryRegion shared_memory_region,
base::SyncSocket::ScopedHandle socket_handle);
int32_t GetRemoteHandles(
const base::SyncSocket& socket,
const base::UnsafeSharedMemoryRegion& shared_memory_region,
IPC::PlatformFileForTransit* remote_socket_handle,
base::UnsafeSharedMemoryRegion* remote_shared_memory_region);
void Close();
void SendOpenReply(int32_t result);
// Non-owning pointer.
raw_ptr<RendererPpapiHostImpl> renderer_ppapi_host_;
ppapi::host::ReplyMessageContext open_context_;
// Audio output object that we delegate audio IPC through.
// We don't own this pointer but are responsible for calling Shutdown on it.
raw_ptr<PepperPlatformAudioOutputDev> audio_output_;
PepperDeviceEnumerationHostHelper enumeration_helper_;
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_PEPPER_AUDIO_OUTPUT_HOST_H_