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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/voice_engine/voe_external_media_impl.h"
#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
#include "webrtc/system_wrappers/include/trace.h"
#include "webrtc/voice_engine/channel.h"
#include "webrtc/voice_engine/include/voe_errors.h"
#include "webrtc/voice_engine/output_mixer.h"
#include "webrtc/voice_engine/transmit_mixer.h"
#include "webrtc/voice_engine/voice_engine_impl.h"
namespace webrtc {
VoEExternalMedia* VoEExternalMedia::GetInterface(VoiceEngine* voiceEngine) {
#ifndef WEBRTC_VOICE_ENGINE_EXTERNAL_MEDIA_API
return NULL;
#else
if (NULL == voiceEngine) {
return NULL;
}
VoiceEngineImpl* s = static_cast<VoiceEngineImpl*>(voiceEngine);
s->AddRef();
return s;
#endif
}
#ifdef WEBRTC_VOICE_ENGINE_EXTERNAL_MEDIA_API
VoEExternalMediaImpl::VoEExternalMediaImpl(voe::SharedData* shared)
:
#ifdef WEBRTC_VOE_EXTERNAL_REC_AND_PLAYOUT
playout_delay_ms_(0),
#endif
shared_(shared) {
WEBRTC_TRACE(kTraceMemory, kTraceVoice, VoEId(shared_->instance_id(), -1),
"VoEExternalMediaImpl() - ctor");
}
VoEExternalMediaImpl::~VoEExternalMediaImpl() {
WEBRTC_TRACE(kTraceMemory, kTraceVoice, VoEId(shared_->instance_id(), -1),
"~VoEExternalMediaImpl() - dtor");
}
int VoEExternalMediaImpl::RegisterExternalMediaProcessing(
int channel,
ProcessingTypes type,
VoEMediaProcess& processObject) {
WEBRTC_TRACE(kTraceApiCall, kTraceVoice, VoEId(shared_->instance_id(), -1),
"RegisterExternalMediaProcessing(channel=%d, type=%d, "
"processObject=0x%x)",
channel, type, &processObject);
if (!shared_->statistics().Initialized()) {
shared_->SetLastError(VE_NOT_INITED, kTraceError);
return -1;
}
switch (type) {
case kPlaybackPerChannel:
case kRecordingPerChannel: {
voe::ChannelOwner ch = shared_->channel_manager().GetChannel(channel);
voe::Channel* channelPtr = ch.channel();
if (channelPtr == NULL) {
shared_->SetLastError(
VE_CHANNEL_NOT_VALID, kTraceError,
"RegisterExternalMediaProcessing() failed to locate "
"channel");
return -1;
}
return channelPtr->RegisterExternalMediaProcessing(type, processObject);
}
case kPlaybackAllChannelsMixed: {
return shared_->output_mixer()->RegisterExternalMediaProcessing(
processObject);
}
case kRecordingAllChannelsMixed:
case kRecordingPreprocessing: {
return shared_->transmit_mixer()->RegisterExternalMediaProcessing(
&processObject, type);
}
}
return -1;
}
int VoEExternalMediaImpl::DeRegisterExternalMediaProcessing(
int channel,
ProcessingTypes type) {
WEBRTC_TRACE(kTraceApiCall, kTraceVoice, VoEId(shared_->instance_id(), -1),
"DeRegisterExternalMediaProcessing(channel=%d)", channel);
if (!shared_->statistics().Initialized()) {
shared_->SetLastError(VE_NOT_INITED, kTraceError);
return -1;
}
switch (type) {
case kPlaybackPerChannel:
case kRecordingPerChannel: {
voe::ChannelOwner ch = shared_->channel_manager().GetChannel(channel);
voe::Channel* channelPtr = ch.channel();
if (channelPtr == NULL) {
shared_->SetLastError(VE_CHANNEL_NOT_VALID, kTraceError,
"RegisterExternalMediaProcessing() "
"failed to locate channel");
return -1;
}
return channelPtr->DeRegisterExternalMediaProcessing(type);
}
case kPlaybackAllChannelsMixed: {
return shared_->output_mixer()->DeRegisterExternalMediaProcessing();
}
case kRecordingAllChannelsMixed:
case kRecordingPreprocessing: {
return shared_->transmit_mixer()->DeRegisterExternalMediaProcessing(type);
}
}
return -1;
}
int VoEExternalMediaImpl::GetAudioFrame(int channel, int desired_sample_rate_hz,
AudioFrame* frame) {
if (!shared_->statistics().Initialized()) {
shared_->SetLastError(VE_NOT_INITED, kTraceError);
return -1;
}
voe::ChannelOwner ch = shared_->channel_manager().GetChannel(channel);
voe::Channel* channelPtr = ch.channel();
if (channelPtr == NULL) {
shared_->SetLastError(VE_CHANNEL_NOT_VALID, kTraceError,
"GetAudioFrame() failed to locate channel");
return -1;
}
if (!channelPtr->ExternalMixing()) {
shared_->SetLastError(VE_INVALID_OPERATION, kTraceError,
"GetAudioFrame() was called on channel that is not"
" externally mixed.");
return -1;
}
if (!channelPtr->Playing()) {
shared_->SetLastError(
VE_INVALID_OPERATION, kTraceError,
"GetAudioFrame() was called on channel that is not playing.");
return -1;
}
if (desired_sample_rate_hz == -1) {
shared_->SetLastError(VE_BAD_ARGUMENT, kTraceError,
"GetAudioFrame() was called with bad sample rate.");
return -1;
}
frame->sample_rate_hz_ =
desired_sample_rate_hz == 0 ? -1 : desired_sample_rate_hz;
return channelPtr->GetAudioFrame(channel, frame);
}
int VoEExternalMediaImpl::SetExternalMixing(int channel, bool enable) {
WEBRTC_TRACE(kTraceApiCall, kTraceVoice,
VoEId(shared_->instance_id(), channel),
"SetExternalMixing(channel=%d, enable=%d)", channel, enable);
if (!shared_->statistics().Initialized()) {
shared_->SetLastError(VE_NOT_INITED, kTraceError);
return -1;
}
voe::ChannelOwner ch = shared_->channel_manager().GetChannel(channel);
voe::Channel* channelPtr = ch.channel();
if (channelPtr == NULL) {
shared_->SetLastError(VE_CHANNEL_NOT_VALID, kTraceError,
"SetExternalMixing() failed to locate channel");
return -1;
}
return channelPtr->SetExternalMixing(enable);
}
#endif // WEBRTC_VOICE_ENGINE_EXTERNAL_MEDIA_API
} // namespace webrtc
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