| // 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. |
| |
| #include "content/renderer/pepper/pepper_audio_input_host.h" |
| |
| #include "base/logging.h" |
| #include "build/build_config.h" |
| #include "content/renderer/pepper/pepper_media_device_manager.h" |
| #include "content/renderer/pepper/pepper_platform_audio_input.h" |
| #include "content/renderer/pepper/pepper_plugin_instance_impl.h" |
| #include "content/renderer/pepper/renderer_ppapi_host_impl.h" |
| #include "content/renderer/render_frame_impl.h" |
| #include "ipc/ipc_message.h" |
| #include "ppapi/c/pp_errors.h" |
| #include "ppapi/host/dispatch_host_message.h" |
| #include "ppapi/host/ppapi_host.h" |
| #include "ppapi/proxy/ppapi_messages.h" |
| #include "ppapi/proxy/serialized_structs.h" |
| |
| namespace content { |
| |
| namespace { |
| |
| base::PlatformFile ConvertSyncSocketHandle(const base::SyncSocket& socket) { |
| return socket.handle(); |
| } |
| |
| base::PlatformFile ConvertSharedMemoryHandle( |
| const base::SharedMemory& shared_memory) { |
| #if defined(OS_POSIX) |
| return shared_memory.handle().fd; |
| #elif defined(OS_WIN) |
| return shared_memory.handle(); |
| #else |
| #error "Platform not supported." |
| #endif |
| } |
| |
| } // namespace |
| |
| PepperAudioInputHost::PepperAudioInputHost(RendererPpapiHostImpl* host, |
| PP_Instance instance, |
| PP_Resource resource) |
| : ResourceHost(host->GetPpapiHost(), instance, resource), |
| renderer_ppapi_host_(host), |
| audio_input_(NULL), |
| enumeration_helper_(this, |
| PepperMediaDeviceManager::GetForRenderFrame( |
| host->GetRenderFrameForInstance(pp_instance())), |
| PP_DEVICETYPE_DEV_AUDIOCAPTURE, |
| host->GetDocumentURL(instance)) {} |
| |
| PepperAudioInputHost::~PepperAudioInputHost() { Close(); } |
| |
| int32_t PepperAudioInputHost::OnResourceMessageReceived( |
| const IPC::Message& msg, |
| ppapi::host::HostMessageContext* context) { |
| int32_t result = PP_ERROR_FAILED; |
| if (enumeration_helper_.HandleResourceMessage(msg, context, &result)) |
| return result; |
| |
| PPAPI_BEGIN_MESSAGE_MAP(PepperAudioInputHost, msg) |
| PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_AudioInput_Open, OnOpen) |
| PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_AudioInput_StartOrStop, |
| OnStartOrStop) |
| PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_AudioInput_Close, OnClose) |
| PPAPI_END_MESSAGE_MAP() |
| return PP_ERROR_FAILED; |
| } |
| |
| void PepperAudioInputHost::StreamCreated( |
| base::SharedMemoryHandle shared_memory_handle, |
| size_t shared_memory_size, |
| base::SyncSocket::Handle socket) { |
| OnOpenComplete(PP_OK, shared_memory_handle, shared_memory_size, socket); |
| } |
| |
| void PepperAudioInputHost::StreamCreationFailed() { |
| OnOpenComplete(PP_ERROR_FAILED, |
| base::SharedMemory::NULLHandle(), |
| 0, |
| base::SyncSocket::kInvalidHandle); |
| } |
| |
| int32_t PepperAudioInputHost::OnOpen(ppapi::host::HostMessageContext* context, |
| const std::string& device_id, |
| PP_AudioSampleRate sample_rate, |
| uint32_t sample_frame_count) { |
| if (open_context_.is_valid()) |
| return PP_ERROR_INPROGRESS; |
| if (audio_input_) |
| return PP_ERROR_FAILED; |
| |
| GURL document_url = renderer_ppapi_host_->GetDocumentURL(pp_instance()); |
| if (!document_url.is_valid()) |
| return PP_ERROR_FAILED; |
| |
| // When it is done, we'll get called back on StreamCreated() or |
| // StreamCreationFailed(). |
| audio_input_ = PepperPlatformAudioInput::Create( |
| renderer_ppapi_host_->GetRenderFrameForInstance(pp_instance())-> |
| GetRoutingID(), |
| device_id, |
| document_url, |
| static_cast<int>(sample_rate), |
| static_cast<int>(sample_frame_count), |
| this); |
| if (audio_input_) { |
| open_context_ = context->MakeReplyMessageContext(); |
| return PP_OK_COMPLETIONPENDING; |
| } else { |
| return PP_ERROR_FAILED; |
| } |
| } |
| |
| int32_t PepperAudioInputHost::OnStartOrStop( |
| ppapi::host::HostMessageContext* /* context */, |
| bool capture) { |
| if (!audio_input_) |
| return PP_ERROR_FAILED; |
| if (capture) |
| audio_input_->StartCapture(); |
| else |
| audio_input_->StopCapture(); |
| return PP_OK; |
| } |
| |
| int32_t PepperAudioInputHost::OnClose( |
| ppapi::host::HostMessageContext* /* context */) { |
| Close(); |
| return PP_OK; |
| } |
| |
| void PepperAudioInputHost::OnOpenComplete( |
| int32_t result, |
| base::SharedMemoryHandle shared_memory_handle, |
| size_t shared_memory_size, |
| base::SyncSocket::Handle socket_handle) { |
| // Make sure the handles are cleaned up. |
| base::SyncSocket scoped_socket(socket_handle); |
| base::SharedMemory scoped_shared_memory(shared_memory_handle, false); |
| |
| if (!open_context_.is_valid()) { |
| NOTREACHED(); |
| return; |
| } |
| |
| ppapi::proxy::SerializedHandle serialized_socket_handle( |
| ppapi::proxy::SerializedHandle::SOCKET); |
| ppapi::proxy::SerializedHandle serialized_shared_memory_handle( |
| ppapi::proxy::SerializedHandle::SHARED_MEMORY); |
| |
| if (result == PP_OK) { |
| IPC::PlatformFileForTransit temp_socket = |
| IPC::InvalidPlatformFileForTransit(); |
| base::SharedMemoryHandle temp_shmem = base::SharedMemory::NULLHandle(); |
| result = GetRemoteHandles( |
| scoped_socket, scoped_shared_memory, &temp_socket, &temp_shmem); |
| |
| serialized_socket_handle.set_socket(temp_socket); |
| serialized_shared_memory_handle.set_shmem(temp_shmem, shared_memory_size); |
| } |
| |
| // Send all the values, even on error. This simplifies some of our cleanup |
| // code since the handles will be in the other process and could be |
| // inconvenient to clean up. Our IPC code will automatically handle this for |
| // us, as long as the remote side always closes the handles it receives, even |
| // in the failure case. |
| open_context_.params.AppendHandle(serialized_socket_handle); |
| open_context_.params.AppendHandle(serialized_shared_memory_handle); |
| SendOpenReply(result); |
| } |
| |
| int32_t PepperAudioInputHost::GetRemoteHandles( |
| const base::SyncSocket& socket, |
| const base::SharedMemory& shared_memory, |
| IPC::PlatformFileForTransit* remote_socket_handle, |
| base::SharedMemoryHandle* remote_shared_memory_handle) { |
| *remote_socket_handle = renderer_ppapi_host_->ShareHandleWithRemote( |
| ConvertSyncSocketHandle(socket), false); |
| if (*remote_socket_handle == IPC::InvalidPlatformFileForTransit()) |
| return PP_ERROR_FAILED; |
| |
| *remote_shared_memory_handle = renderer_ppapi_host_->ShareHandleWithRemote( |
| ConvertSharedMemoryHandle(shared_memory), false); |
| if (*remote_shared_memory_handle == IPC::InvalidPlatformFileForTransit()) |
| return PP_ERROR_FAILED; |
| |
| return PP_OK; |
| } |
| |
| void PepperAudioInputHost::Close() { |
| if (!audio_input_) |
| return; |
| |
| audio_input_->ShutDown(); |
| audio_input_ = NULL; |
| |
| if (open_context_.is_valid()) |
| SendOpenReply(PP_ERROR_ABORTED); |
| } |
| |
| void PepperAudioInputHost::SendOpenReply(int32_t result) { |
| open_context_.params.set_result(result); |
| host()->SendReply(open_context_, PpapiPluginMsg_AudioInput_OpenReply()); |
| open_context_ = ppapi::host::ReplyMessageContext(); |
| } |
| |
| } // namespace content |