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// 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 "webkit/plugins/ppapi/ppb_audio_input_impl.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/shared_memory.h"
#include "base/sync_socket.h"
#include "build/build_config.h"
#include "ppapi/c/pp_completion_callback.h"
#include "ppapi/shared_impl/ppb_device_ref_shared.h"
#include "ppapi/shared_impl/tracked_callback.h"
#include "webkit/plugins/ppapi/common.h"
#include "webkit/plugins/ppapi/resource_helper.h"
using ppapi::TrackedCallback;
namespace webkit {
namespace ppapi {
// PPB_AudioInput_Impl ---------------------------------------------------------
PPB_AudioInput_Impl::PPB_AudioInput_Impl(PP_Instance instance)
: ::ppapi::PPB_AudioInput_Shared(instance),
audio_input_(NULL) {
}
PPB_AudioInput_Impl::~PPB_AudioInput_Impl() {
Close();
}
// static
PP_Resource PPB_AudioInput_Impl::Create0_1(
PP_Instance instance,
PP_Resource config,
PPB_AudioInput_Callback audio_input_callback,
void* user_data) {
scoped_refptr<PPB_AudioInput_Impl>
audio_input(new PPB_AudioInput_Impl(instance));
int32_t result = audio_input->Open(
"", config, audio_input_callback, user_data,
MakeIgnoredCompletionCallback());
if (result != PP_OK && result != PP_OK_COMPLETIONPENDING)
return 0;
return audio_input->GetReference();
}
int32_t PPB_AudioInput_Impl::OpenTrusted(
const std::string& device_id,
PP_Resource config,
const PP_CompletionCallback& create_callback) {
return CommonOpen(device_id, config, NULL, NULL, create_callback);
}
int32_t PPB_AudioInput_Impl::GetSyncSocket(int* sync_socket) {
if (socket_.get()) {
#if defined(OS_POSIX)
*sync_socket = socket_->handle();
#elif defined(OS_WIN)
*sync_socket = reinterpret_cast<int>(socket_->handle());
#else
#error "Platform not supported."
#endif
return PP_OK;
}
return PP_ERROR_FAILED;
}
int32_t PPB_AudioInput_Impl::GetSharedMemory(int* shm_handle,
uint32_t* shm_size) {
if (shared_memory_.get()) {
#if defined(OS_POSIX)
*shm_handle = shared_memory_->handle().fd;
#elif defined(OS_WIN)
*shm_handle = reinterpret_cast<int>(shared_memory_->handle());
#else
#error "Platform not supported."
#endif
*shm_size = shared_memory_size_;
return PP_OK;
}
return PP_ERROR_FAILED;
}
const PPB_AudioInput_Impl::DeviceRefDataVector&
PPB_AudioInput_Impl::GetDeviceRefData() const {
return devices_data_;
}
void PPB_AudioInput_Impl::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 PPB_AudioInput_Impl::StreamCreationFailed() {
OnOpenComplete(PP_ERROR_FAILED, base::SharedMemory::NULLHandle(), 0,
base::SyncSocket::kInvalidHandle);
}
int32_t PPB_AudioInput_Impl::InternalEnumerateDevices(
PP_Resource* devices,
PP_CompletionCallback callback) {
PluginDelegate* plugin_delegate = ResourceHelper::GetPluginDelegate(this);
if (!plugin_delegate)
return PP_ERROR_FAILED;
devices_ = devices;
enumerate_devices_callback_ = new TrackedCallback(this, callback);
plugin_delegate->EnumerateDevices(
PP_DEVICETYPE_DEV_AUDIOCAPTURE,
base::Bind(&PPB_AudioInput_Impl::EnumerateDevicesCallbackFunc,
AsWeakPtr()));
return PP_OK_COMPLETIONPENDING;
}
int32_t PPB_AudioInput_Impl::InternalOpen(const std::string& device_id,
PP_AudioSampleRate sample_rate,
uint32_t sample_frame_count,
PP_CompletionCallback callback) {
PluginDelegate* plugin_delegate = ResourceHelper::GetPluginDelegate(this);
if (!plugin_delegate)
return PP_ERROR_FAILED;
// When the stream is created, we'll get called back on StreamCreated().
DCHECK(!audio_input_);
audio_input_ = plugin_delegate->CreateAudioInput(
device_id, sample_rate, sample_frame_count, this);
if (audio_input_) {
open_callback_ = new TrackedCallback(this, callback);
return PP_OK_COMPLETIONPENDING;
} else {
return PP_ERROR_FAILED;
}
}
PP_Bool PPB_AudioInput_Impl::InternalStartCapture() {
if (!audio_input_)
return PP_FALSE;
SetStartCaptureState();
audio_input_->StartCapture();
return PP_TRUE;
}
PP_Bool PPB_AudioInput_Impl::InternalStopCapture() {
if (!audio_input_)
return PP_FALSE;
audio_input_->StopCapture();
SetStopCaptureState();
return PP_TRUE;
}
void PPB_AudioInput_Impl::InternalClose() {
// Calling ShutDown() makes sure StreamCreated() cannot be called anymore and
// releases the audio data associated with the pointer. Note however, that
// until ShutDown() returns, StreamCreated() may still be called. This will be
// OK since OnOpenComplete() will clean up the handles and do nothing else in
// that case.
if (audio_input_) {
audio_input_->ShutDown();
audio_input_ = NULL;
}
}
void PPB_AudioInput_Impl::EnumerateDevicesCallbackFunc(
int request_id,
bool succeeded,
const DeviceRefDataVector& devices) {
devices_data_.clear();
if (succeeded)
devices_data_ = devices;
OnEnumerateDevicesComplete(succeeded ? PP_OK : PP_ERROR_FAILED, devices);
}
} // namespace ppapi
} // namespace webkit
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