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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <string.h>
#define LOG_TAG "PreProcessing"
//#define LOG_NDEBUG 0
#include <audio_effects/effect_aec.h>
#include <audio_effects/effect_agc.h>
#include <hardware/audio_effect.h>
#include <utils/Log.h>
#include <utils/Timers.h>
#include <audio_effects/effect_agc2.h>
#include <audio_effects/effect_ns.h>
#include <audio_processing.h>
#include <module_common_types.h>
// undefine to perform multi channels API functional tests
//#define DUAL_MIC_TEST
//------------------------------------------------------------------------------
// local definitions
//------------------------------------------------------------------------------
// maximum number of sessions
#define PREPROC_NUM_SESSIONS 8
// types of pre processing modules
enum preproc_id {
PREPROC_AGC, // Automatic Gain Control
PREPROC_AGC2, // Automatic Gain Control 2
PREPROC_AEC, // Acoustic Echo Canceler
PREPROC_NS, // Noise Suppressor
PREPROC_NUM_EFFECTS
};
// Session state
enum preproc_session_state {
PREPROC_SESSION_STATE_INIT, // initialized
PREPROC_SESSION_STATE_CONFIG // configuration received
};
// Effect/Preprocessor state
enum preproc_effect_state {
PREPROC_EFFECT_STATE_INIT, // initialized
PREPROC_EFFECT_STATE_CREATED, // webRTC engine created
PREPROC_EFFECT_STATE_CONFIG, // configuration received/disabled
PREPROC_EFFECT_STATE_ACTIVE // active/enabled
};
// handle on webRTC engine
typedef void* preproc_fx_handle_t;
typedef struct preproc_session_s preproc_session_t;
typedef struct preproc_effect_s preproc_effect_t;
typedef struct preproc_ops_s preproc_ops_t;
// Effect operation table. Functions for all pre processors are declared in sPreProcOps[] table.
// Function pointer can be null if no action required.
struct preproc_ops_s {
int (*create)(preproc_effect_t* fx);
int (*init)(preproc_effect_t* fx);
int (*reset)(preproc_effect_t* fx);
void (*enable)(preproc_effect_t* fx);
void (*disable)(preproc_effect_t* fx);
int (*set_parameter)(preproc_effect_t* fx, void* param, void* value);
int (*get_parameter)(preproc_effect_t* fx, void* param, uint32_t* size, void* value);
int (*set_device)(preproc_effect_t* fx, uint32_t device);
};
// Effect context
struct preproc_effect_s {
const struct effect_interface_s* itfe;
uint32_t procId; // type of pre processor (enum preproc_id)
uint32_t state; // current state (enum preproc_effect_state)
preproc_session_t* session; // session the effect is on
const preproc_ops_t* ops; // effect ops table
preproc_fx_handle_t engine; // handle on webRTC engine
uint32_t type; // subtype of effect
#ifdef DUAL_MIC_TEST
bool aux_channels_on; // support auxiliary channels
size_t cur_channel_config; // current auciliary channel configuration
#endif
};
// Session context
struct preproc_session_s {
struct preproc_effect_s effects[PREPROC_NUM_EFFECTS]; // effects in this session
uint32_t state; // current state (enum preproc_session_state)
int id; // audio session ID
int io; // handle of input stream this session is on
webrtc::AudioProcessing* apm; // handle on webRTC audio processing module (APM)
// Audio Processing module builder
webrtc::AudioProcessingBuilder ap_builder;
// frameCount represents the size of the buffers used for processing, and must represent 10ms.
size_t frameCount;
uint32_t samplingRate; // sampling rate at effect process interface
uint32_t inChannelCount; // input channel count
uint32_t outChannelCount; // output channel count
uint32_t createdMsk; // bit field containing IDs of crested pre processors
uint32_t enabledMsk; // bit field containing IDs of enabled pre processors
uint32_t processedMsk; // bit field containing IDs of pre processors already
// processed in current round
// audio config strucutre
webrtc::AudioProcessing::Config config;
webrtc::StreamConfig inputConfig; // input stream configuration
webrtc::StreamConfig outputConfig; // output stream configuration
uint32_t revChannelCount; // number of channels on reverse stream
uint32_t revEnabledMsk; // bit field containing IDs of enabled pre processors
// with reverse channel
uint32_t revProcessedMsk; // bit field containing IDs of pre processors with reverse
// channel already processed in current round
webrtc::StreamConfig revConfig; // reverse stream configuration.
};
#ifdef DUAL_MIC_TEST
enum {
PREPROC_CMD_DUAL_MIC_ENABLE = EFFECT_CMD_FIRST_PROPRIETARY, // enable dual mic mode
PREPROC_CMD_DUAL_MIC_PCM_DUMP_START, // start pcm capture
PREPROC_CMD_DUAL_MIC_PCM_DUMP_STOP // stop pcm capture
};
enum {
CHANNEL_CFG_MONO,
CHANNEL_CFG_STEREO,
CHANNEL_CFG_MONO_AUX,
CHANNEL_CFG_STEREO_AUX,
CHANNEL_CFG_CNT,
CHANNEL_CFG_FIRST_AUX = CHANNEL_CFG_MONO_AUX,
};
const channel_config_t sDualMicConfigs[CHANNEL_CFG_CNT] = {
{AUDIO_CHANNEL_IN_MONO, 0},
{AUDIO_CHANNEL_IN_STEREO, 0},
{AUDIO_CHANNEL_IN_FRONT, AUDIO_CHANNEL_IN_BACK},
{AUDIO_CHANNEL_IN_STEREO, AUDIO_CHANNEL_IN_RIGHT}};
bool sHasAuxChannels[PREPROC_NUM_EFFECTS] = {
false, // PREPROC_AGC
false, // PREPROC_AGC2
true, // PREPROC_AEC
true, // PREPROC_NS
};
bool gDualMicEnabled;
FILE* gPcmDumpFh;
static pthread_mutex_t gPcmDumpLock = PTHREAD_MUTEX_INITIALIZER;
#endif
//------------------------------------------------------------------------------
// Effect descriptors
//------------------------------------------------------------------------------
// UUIDs for effect types have been generated from http://www.itu.int/ITU-T/asn1/uuid.html
// as the pre processing effects are not defined by OpenSL ES
// Automatic Gain Control
static const effect_descriptor_t sAgcDescriptor = {
{0x0a8abfe0, 0x654c, 0x11e0, 0xba26, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // type
{0xaa8130e0, 0x66fc, 0x11e0, 0xbad0, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // uuid
EFFECT_CONTROL_API_VERSION,
(EFFECT_FLAG_TYPE_PRE_PROC | EFFECT_FLAG_DEVICE_IND),
0, // FIXME indicate CPU load
0, // FIXME indicate memory usage
"Automatic Gain Control",
"The Android Open Source Project"};
// Automatic Gain Control 2
static const effect_descriptor_t sAgc2Descriptor = {
{0xae3c653b, 0xbe18, 0x4ab8, 0x8938, {0x41, 0x8f, 0x0a, 0x7f, 0x06, 0xac}}, // type
{0x89f38e65, 0xd4d2, 0x4d64, 0xad0e, {0x2b, 0x3e, 0x79, 0x9e, 0xa8, 0x86}}, // uuid
EFFECT_CONTROL_API_VERSION,
(EFFECT_FLAG_TYPE_PRE_PROC | EFFECT_FLAG_DEVICE_IND),
0, // FIXME indicate CPU load
0, // FIXME indicate memory usage
"Automatic Gain Control 2",
"The Android Open Source Project"};
// Acoustic Echo Cancellation
static const effect_descriptor_t sAecDescriptor = {
{0x7b491460, 0x8d4d, 0x11e0, 0xbd61, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // type
{0xbb392ec0, 0x8d4d, 0x11e0, 0xa896, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // uuid
EFFECT_CONTROL_API_VERSION,
(EFFECT_FLAG_TYPE_PRE_PROC | EFFECT_FLAG_DEVICE_IND),
0, // FIXME indicate CPU load
0, // FIXME indicate memory usage
"Acoustic Echo Canceler",
"The Android Open Source Project"};
// Noise suppression
static const effect_descriptor_t sNsDescriptor = {
{0x58b4b260, 0x8e06, 0x11e0, 0xaa8e, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // type
{0xc06c8400, 0x8e06, 0x11e0, 0x9cb6, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // uuid
EFFECT_CONTROL_API_VERSION,
(EFFECT_FLAG_TYPE_PRE_PROC | EFFECT_FLAG_DEVICE_IND),
0, // FIXME indicate CPU load
0, // FIXME indicate memory usage
"Noise Suppression",
"The Android Open Source Project"};
static const effect_descriptor_t* sDescriptors[PREPROC_NUM_EFFECTS] = {&sAgcDescriptor,
&sAgc2Descriptor,
&sAecDescriptor,
&sNsDescriptor};
//------------------------------------------------------------------------------
// Helper functions
//------------------------------------------------------------------------------
const effect_uuid_t* const sUuidToPreProcTable[PREPROC_NUM_EFFECTS] = {FX_IID_AGC,
FX_IID_AGC2,
FX_IID_AEC, FX_IID_NS};
const effect_uuid_t* ProcIdToUuid(int procId) {
if (procId >= PREPROC_NUM_EFFECTS) {
return EFFECT_UUID_NULL;
}
return sUuidToPreProcTable[procId];
}
uint32_t UuidToProcId(const effect_uuid_t* uuid) {
size_t i;
for (i = 0; i < PREPROC_NUM_EFFECTS; i++) {
if (memcmp(uuid, sUuidToPreProcTable[i], sizeof(*uuid)) == 0) {
break;
}
}
return i;
}
bool HasReverseStream(uint32_t procId) {
if (procId == PREPROC_AEC) {
return true;
}
return false;
}
//------------------------------------------------------------------------------
// Automatic Gain Control (AGC)
//------------------------------------------------------------------------------
static const int kAgcDefaultTargetLevel = 3;
static const int kAgcDefaultCompGain = 9;
static const bool kAgcDefaultLimiter = true;
int Agc2Init(preproc_effect_t* effect) {
ALOGV("Agc2Init");
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.gain_controller2.fixed_digital.gain_db = 0.f;
effect->session->config.gain_controller2.adaptive_digital.level_estimator =
effect->session->config.gain_controller2.kRms;
effect->session->config.gain_controller2.adaptive_digital.extra_saturation_margin_db = 2.f;
effect->session->apm->ApplyConfig(effect->session->config);
return 0;
}
int AgcInit(preproc_effect_t* effect) {
ALOGV("AgcInit");
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.gain_controller1.target_level_dbfs = kAgcDefaultTargetLevel;
effect->session->config.gain_controller1.compression_gain_db = kAgcDefaultCompGain;
effect->session->config.gain_controller1.enable_limiter = kAgcDefaultLimiter;
effect->session->apm->ApplyConfig(effect->session->config);
return 0;
}
int Agc2Create(preproc_effect_t* effect) {
Agc2Init(effect);
return 0;
}
int AgcCreate(preproc_effect_t* effect) {
AgcInit(effect);
return 0;
}
int Agc2GetParameter(preproc_effect_t* effect, void* pParam, uint32_t* pValueSize, void* pValue) {
int status = 0;
uint32_t param = *(uint32_t*)pParam;
agc2_settings_t* pProperties = (agc2_settings_t*)pValue;
switch (param) {
case AGC2_PARAM_FIXED_DIGITAL_GAIN:
if (*pValueSize < sizeof(float)) {
*pValueSize = 0.f;
return -EINVAL;
}
break;
case AGC2_PARAM_ADAPT_DIGI_LEVEL_ESTIMATOR:
if (*pValueSize < sizeof(int32_t)) {
*pValueSize = 0;
return -EINVAL;
}
break;
case AGC2_PARAM_ADAPT_DIGI_EXTRA_SATURATION_MARGIN:
if (*pValueSize < sizeof(float)) {
*pValueSize = 0.f;
return -EINVAL;
}
break;
case AGC2_PARAM_PROPERTIES:
if (*pValueSize < sizeof(agc2_settings_t)) {
*pValueSize = 0;
return -EINVAL;
}
break;
default:
ALOGW("Agc2GetParameter() unknown param %08x", param);
status = -EINVAL;
break;
}
effect->session->config = effect->session->apm->GetConfig();
switch (param) {
case AGC2_PARAM_FIXED_DIGITAL_GAIN:
*(float*)pValue =
(float)(effect->session->config.gain_controller2.fixed_digital.gain_db);
ALOGV("Agc2GetParameter() target level %f dB", *(float*)pValue);
break;
case AGC2_PARAM_ADAPT_DIGI_LEVEL_ESTIMATOR:
*(uint32_t*)pValue = (uint32_t)(
effect->session->config.gain_controller2.adaptive_digital.level_estimator);
ALOGV("Agc2GetParameter() level estimator %d",
*(webrtc::AudioProcessing::Config::GainController2::LevelEstimator*)pValue);
break;
case AGC2_PARAM_ADAPT_DIGI_EXTRA_SATURATION_MARGIN:
*(float*)pValue = (float)(effect->session->config.gain_controller2.adaptive_digital
.extra_saturation_margin_db);
ALOGV("Agc2GetParameter() extra saturation margin %f dB", *(float*)pValue);
break;
case AGC2_PARAM_PROPERTIES:
pProperties->fixedDigitalGain =
(float)(effect->session->config.gain_controller2.fixed_digital.gain_db);
pProperties->level_estimator = (uint32_t)(
effect->session->config.gain_controller2.adaptive_digital.level_estimator);
pProperties->extraSaturationMargin =
(float)(effect->session->config.gain_controller2.adaptive_digital
.extra_saturation_margin_db);
break;
default:
ALOGW("Agc2GetParameter() unknown param %d", param);
status = -EINVAL;
break;
}
return status;
}
int AgcGetParameter(preproc_effect_t* effect, void* pParam, uint32_t* pValueSize, void* pValue) {
int status = 0;
uint32_t param = *(uint32_t*)pParam;
t_agc_settings* pProperties = (t_agc_settings*)pValue;
switch (param) {
case AGC_PARAM_TARGET_LEVEL:
case AGC_PARAM_COMP_GAIN:
if (*pValueSize < sizeof(int16_t)) {
*pValueSize = 0;
return -EINVAL;
}
break;
case AGC_PARAM_LIMITER_ENA:
if (*pValueSize < sizeof(bool)) {
*pValueSize = 0;
return -EINVAL;
}
break;
case AGC_PARAM_PROPERTIES:
if (*pValueSize < sizeof(t_agc_settings)) {
*pValueSize = 0;
return -EINVAL;
}
break;
default:
ALOGW("AgcGetParameter() unknown param %08x", param);
status = -EINVAL;
break;
}
effect->session->config = effect->session->apm->GetConfig();
switch (param) {
case AGC_PARAM_TARGET_LEVEL:
*(int16_t*)pValue =
(int16_t)(effect->session->config.gain_controller1.target_level_dbfs * -100);
ALOGV("AgcGetParameter() target level %d milliBels", *(int16_t*)pValue);
break;
case AGC_PARAM_COMP_GAIN:
*(int16_t*)pValue =
(int16_t)(effect->session->config.gain_controller1.compression_gain_db * -100);
ALOGV("AgcGetParameter() comp gain %d milliBels", *(int16_t*)pValue);
break;
case AGC_PARAM_LIMITER_ENA:
*(bool*)pValue = (bool)(effect->session->config.gain_controller1.enable_limiter);
ALOGV("AgcGetParameter() limiter enabled %s",
(*(int16_t*)pValue != 0) ? "true" : "false");
break;
case AGC_PARAM_PROPERTIES:
pProperties->targetLevel =
(int16_t)(effect->session->config.gain_controller1.target_level_dbfs * -100);
pProperties->compGain =
(int16_t)(effect->session->config.gain_controller1.compression_gain_db * -100);
pProperties->limiterEnabled =
(bool)(effect->session->config.gain_controller1.enable_limiter);
break;
default:
ALOGW("AgcGetParameter() unknown param %d", param);
status = -EINVAL;
break;
}
return status;
}
int Agc2SetParameter(preproc_effect_t* effect, void* pParam, void* pValue) {
int status = 0;
uint32_t param = *(uint32_t*)pParam;
float valueFloat = 0.f;
agc2_settings_t* pProperties = (agc2_settings_t*)pValue;
effect->session->config = effect->session->apm->GetConfig();
switch (param) {
case AGC2_PARAM_FIXED_DIGITAL_GAIN:
valueFloat = (float)(*(int32_t*)pValue);
ALOGV("Agc2SetParameter() fixed digital gain %f dB", valueFloat);
effect->session->config.gain_controller2.fixed_digital.gain_db = valueFloat;
break;
case AGC2_PARAM_ADAPT_DIGI_LEVEL_ESTIMATOR:
ALOGV("Agc2SetParameter() level estimator %d",
*(webrtc::AudioProcessing::Config::GainController2::LevelEstimator*)pValue);
effect->session->config.gain_controller2.adaptive_digital.level_estimator =
(*(webrtc::AudioProcessing::Config::GainController2::LevelEstimator*)pValue);
break;
case AGC2_PARAM_ADAPT_DIGI_EXTRA_SATURATION_MARGIN:
valueFloat = (float)(*(int32_t*)pValue);
ALOGV("Agc2SetParameter() extra saturation margin %f dB", valueFloat);
effect->session->config.gain_controller2.adaptive_digital.extra_saturation_margin_db =
valueFloat;
break;
case AGC2_PARAM_PROPERTIES:
ALOGV("Agc2SetParameter() properties gain %f, level %d margin %f",
pProperties->fixedDigitalGain, pProperties->level_estimator,
pProperties->extraSaturationMargin);
effect->session->config.gain_controller2.fixed_digital.gain_db =
pProperties->fixedDigitalGain;
effect->session->config.gain_controller2.adaptive_digital.level_estimator =
(webrtc::AudioProcessing::Config::GainController2::LevelEstimator)
pProperties->level_estimator;
effect->session->config.gain_controller2.adaptive_digital.extra_saturation_margin_db =
pProperties->extraSaturationMargin;
break;
default:
ALOGW("Agc2SetParameter() unknown param %08x value %08x", param, *(uint32_t*)pValue);
status = -EINVAL;
break;
}
effect->session->apm->ApplyConfig(effect->session->config);
ALOGV("Agc2SetParameter() done status %d", status);
return status;
}
int AgcSetParameter(preproc_effect_t* effect, void* pParam, void* pValue) {
int status = 0;
uint32_t param = *(uint32_t*)pParam;
t_agc_settings* pProperties = (t_agc_settings*)pValue;
effect->session->config = effect->session->apm->GetConfig();
switch (param) {
case AGC_PARAM_TARGET_LEVEL:
ALOGV("AgcSetParameter() target level %d milliBels", *(int16_t*)pValue);
effect->session->config.gain_controller1.target_level_dbfs =
(-(*(int16_t*)pValue / 100));
break;
case AGC_PARAM_COMP_GAIN:
ALOGV("AgcSetParameter() comp gain %d milliBels", *(int16_t*)pValue);
effect->session->config.gain_controller1.compression_gain_db =
(*(int16_t*)pValue / 100);
break;
case AGC_PARAM_LIMITER_ENA:
ALOGV("AgcSetParameter() limiter enabled %s", *(bool*)pValue ? "true" : "false");
effect->session->config.gain_controller1.enable_limiter = (*(bool*)pValue);
break;
case AGC_PARAM_PROPERTIES:
ALOGV("AgcSetParameter() properties level %d, gain %d limiter %d",
pProperties->targetLevel, pProperties->compGain, pProperties->limiterEnabled);
effect->session->config.gain_controller1.target_level_dbfs =
-(pProperties->targetLevel / 100);
effect->session->config.gain_controller1.compression_gain_db =
pProperties->compGain / 100;
effect->session->config.gain_controller1.enable_limiter = pProperties->limiterEnabled;
break;
default:
ALOGW("AgcSetParameter() unknown param %08x value %08x", param, *(uint32_t*)pValue);
status = -EINVAL;
break;
}
effect->session->apm->ApplyConfig(effect->session->config);
ALOGV("AgcSetParameter() done status %d", status);
return status;
}
void Agc2Enable(preproc_effect_t* effect) {
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.gain_controller2.enabled = true;
effect->session->apm->ApplyConfig(effect->session->config);
}
void AgcEnable(preproc_effect_t* effect) {
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.gain_controller1.enabled = true;
effect->session->apm->ApplyConfig(effect->session->config);
}
void Agc2Disable(preproc_effect_t* effect) {
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.gain_controller2.enabled = false;
effect->session->apm->ApplyConfig(effect->session->config);
}
void AgcDisable(preproc_effect_t* effect) {
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.gain_controller1.enabled = false;
effect->session->apm->ApplyConfig(effect->session->config);
}
static const preproc_ops_t sAgcOps = {AgcCreate, AgcInit, NULL, AgcEnable, AgcDisable,
AgcSetParameter, AgcGetParameter, NULL};
static const preproc_ops_t sAgc2Ops = {Agc2Create, Agc2Init, NULL,
Agc2Enable, Agc2Disable, Agc2SetParameter,
Agc2GetParameter, NULL};
//------------------------------------------------------------------------------
// Acoustic Echo Canceler (AEC)
//------------------------------------------------------------------------------
int AecInit(preproc_effect_t* effect) {
ALOGV("AecInit");
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.echo_canceller.mobile_mode = true;
effect->session->apm->ApplyConfig(effect->session->config);
return 0;
}
int AecCreate(preproc_effect_t* effect) {
AecInit(effect);
return 0;
}
int AecGetParameter(preproc_effect_t* effect, void* pParam, uint32_t* pValueSize, void* pValue) {
int status = 0;
uint32_t param = *(uint32_t*)pParam;
if (*pValueSize < sizeof(uint32_t)) {
return -EINVAL;
}
switch (param) {
case AEC_PARAM_ECHO_DELAY:
case AEC_PARAM_PROPERTIES:
*(uint32_t*)pValue = 1000 * effect->session->apm->stream_delay_ms();
ALOGV("AecGetParameter() echo delay %d us", *(uint32_t*)pValue);
break;
case AEC_PARAM_MOBILE_MODE:
effect->session->config = effect->session->apm->GetConfig();
*(uint32_t*)pValue = effect->session->config.echo_canceller.mobile_mode;
ALOGV("AecGetParameter() mobile mode %d us", *(uint32_t*)pValue);
break;
default:
ALOGW("AecGetParameter() unknown param %08x value %08x", param, *(uint32_t*)pValue);
status = -EINVAL;
break;
}
return status;
}
int AecSetParameter(preproc_effect_t* effect, void* pParam, void* pValue) {
int status = 0;
uint32_t param = *(uint32_t*)pParam;
uint32_t value = *(uint32_t*)pValue;
switch (param) {
case AEC_PARAM_ECHO_DELAY:
case AEC_PARAM_PROPERTIES:
status = effect->session->apm->set_stream_delay_ms(value / 1000);
ALOGV("AecSetParameter() echo delay %d us, status %d", value, status);
break;
case AEC_PARAM_MOBILE_MODE:
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.echo_canceller.mobile_mode = value;
ALOGV("AecSetParameter() mobile mode %d us", value);
effect->session->apm->ApplyConfig(effect->session->config);
break;
default:
ALOGW("AecSetParameter() unknown param %08x value %08x", param, *(uint32_t*)pValue);
status = -EINVAL;
break;
}
return status;
}
void AecEnable(preproc_effect_t* effect) {
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.echo_canceller.enabled = true;
effect->session->apm->ApplyConfig(effect->session->config);
}
void AecDisable(preproc_effect_t* effect) {
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.echo_canceller.enabled = false;
effect->session->apm->ApplyConfig(effect->session->config);
}
int AecSetDevice(preproc_effect_t* effect, uint32_t device) {
ALOGV("AecSetDevice %08x", device);
if (audio_is_input_device(device)) {
return 0;
}
return 0;
}
static const preproc_ops_t sAecOps = {AecCreate, AecInit, NULL,
AecEnable, AecDisable, AecSetParameter,
AecGetParameter, AecSetDevice};
//------------------------------------------------------------------------------
// Noise Suppression (NS)
//------------------------------------------------------------------------------
static const webrtc::AudioProcessing::Config::NoiseSuppression::Level kNsDefaultLevel =
webrtc::AudioProcessing::Config::NoiseSuppression::kModerate;
int NsInit(preproc_effect_t* effect) {
ALOGV("NsInit");
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.noise_suppression.level = kNsDefaultLevel;
effect->session->apm->ApplyConfig(effect->session->config);
effect->type = NS_TYPE_SINGLE_CHANNEL;
return 0;
}
int NsCreate(preproc_effect_t* effect) {
NsInit(effect);
return 0;
}
int NsGetParameter(preproc_effect_t* /*effect __unused*/, void* /*pParam __unused*/,
uint32_t* /*pValueSize __unused*/, void* /*pValue __unused*/) {
int status = 0;
return status;
}
int NsSetParameter(preproc_effect_t* effect, void* pParam, void* pValue) {
int status = 0;
uint32_t param = *(uint32_t*)pParam;
uint32_t value = *(uint32_t*)pValue;
effect->session->config = effect->session->apm->GetConfig();
switch (param) {
case NS_PARAM_LEVEL:
effect->session->config.noise_suppression.level =
(webrtc::AudioProcessing::Config::NoiseSuppression::Level)value;
ALOGV("NsSetParameter() level %d", value);
break;
default:
ALOGW("NsSetParameter() unknown param %08x value %08x", param, value);
status = -EINVAL;
}
effect->session->apm->ApplyConfig(effect->session->config);
return status;
}
void NsEnable(preproc_effect_t* effect) {
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.noise_suppression.enabled = true;
effect->session->apm->ApplyConfig(effect->session->config);
}
void NsDisable(preproc_effect_t* effect) {
ALOGV("NsDisable");
effect->session->config = effect->session->apm->GetConfig();
effect->session->config.noise_suppression.enabled = false;
effect->session->apm->ApplyConfig(effect->session->config);
}
static const preproc_ops_t sNsOps = {NsCreate, NsInit, NULL, NsEnable,
NsDisable, NsSetParameter, NsGetParameter, NULL};
static const preproc_ops_t* sPreProcOps[PREPROC_NUM_EFFECTS] = {&sAgcOps,
&sAgc2Ops,
&sAecOps, &sNsOps};
//------------------------------------------------------------------------------
// Effect functions
//------------------------------------------------------------------------------
void Session_SetProcEnabled(preproc_session_t* session, uint32_t procId, bool enabled);
extern "C" const struct effect_interface_s sEffectInterface;
extern "C" const struct effect_interface_s sEffectInterfaceReverse;
#define BAD_STATE_ABORT(from, to) LOG_ALWAYS_FATAL("Bad state transition from %d to %d", from, to);
int Effect_SetState(preproc_effect_t* effect, uint32_t state) {
int status = 0;
ALOGV("Effect_SetState proc %d, new %d old %d", effect->procId, state, effect->state);
switch (state) {
case PREPROC_EFFECT_STATE_INIT:
switch (effect->state) {
case PREPROC_EFFECT_STATE_ACTIVE:
effect->ops->disable(effect);
Session_SetProcEnabled(effect->session, effect->procId, false);
break;
case PREPROC_EFFECT_STATE_CONFIG:
case PREPROC_EFFECT_STATE_CREATED:
case PREPROC_EFFECT_STATE_INIT:
break;
default:
BAD_STATE_ABORT(effect->state, state);
}
break;
case PREPROC_EFFECT_STATE_CREATED:
switch (effect->state) {
case PREPROC_EFFECT_STATE_INIT:
status = effect->ops->create(effect);
break;
case PREPROC_EFFECT_STATE_CREATED:
case PREPROC_EFFECT_STATE_ACTIVE:
case PREPROC_EFFECT_STATE_CONFIG:
ALOGE("Effect_SetState invalid transition");
status = -ENOSYS;
break;
default:
BAD_STATE_ABORT(effect->state, state);
}
break;
case PREPROC_EFFECT_STATE_CONFIG:
switch (effect->state) {
case PREPROC_EFFECT_STATE_INIT:
ALOGE("Effect_SetState invalid transition");
status = -ENOSYS;
break;
case PREPROC_EFFECT_STATE_ACTIVE:
effect->ops->disable(effect);
Session_SetProcEnabled(effect->session, effect->procId, false);
break;
case PREPROC_EFFECT_STATE_CREATED:
case PREPROC_EFFECT_STATE_CONFIG:
break;
default:
BAD_STATE_ABORT(effect->state, state);
}
break;
case PREPROC_EFFECT_STATE_ACTIVE:
switch (effect->state) {
case PREPROC_EFFECT_STATE_INIT:
case PREPROC_EFFECT_STATE_CREATED:
ALOGE("Effect_SetState invalid transition");
status = -ENOSYS;
break;
case PREPROC_EFFECT_STATE_ACTIVE:
// enabling an already enabled effect is just ignored
break;
case PREPROC_EFFECT_STATE_CONFIG:
effect->ops->enable(effect);
Session_SetProcEnabled(effect->session, effect->procId, true);
break;
default:
BAD_STATE_ABORT(effect->state, state);
}
break;
default:
BAD_STATE_ABORT(effect->state, state);
}
if (status == 0) {
effect->state = state;
}
return status;
}
int Effect_Init(preproc_effect_t* effect, uint32_t procId) {
if (HasReverseStream(procId)) {
effect->itfe = &sEffectInterfaceReverse;
} else {
effect->itfe = &sEffectInterface;
}
effect->ops = sPreProcOps[procId];
effect->procId = procId;
effect->state = PREPROC_EFFECT_STATE_INIT;
return 0;
}
int Effect_Create(preproc_effect_t* effect, preproc_session_t* session,
effect_handle_t* interface) {
effect->session = session;
*interface = (effect_handle_t)&effect->itfe;
return Effect_SetState(effect, PREPROC_EFFECT_STATE_CREATED);
}
int Effect_Release(preproc_effect_t* effect) {
return Effect_SetState(effect, PREPROC_EFFECT_STATE_INIT);
}
//------------------------------------------------------------------------------
// Session functions
//------------------------------------------------------------------------------
#define RESAMPLER_QUALITY SPEEX_RESAMPLER_QUALITY_VOIP
static const int kPreprocDefaultSr = 16000;
static const int kPreProcDefaultCnl = 1;
int Session_Init(preproc_session_t* session) {
size_t i;
int status = 0;
session->state = PREPROC_SESSION_STATE_INIT;
session->id = 0;
session->io = 0;
session->createdMsk = 0;
for (i = 0; i < PREPROC_NUM_EFFECTS && status == 0; i++) {
status = Effect_Init(&session->effects[i], i);
}
return status;
}
extern "C" int Session_CreateEffect(preproc_session_t* session, int32_t procId,
effect_handle_t* interface) {
int status = -ENOMEM;
ALOGV("Session_CreateEffect procId %d, createdMsk %08x", procId, session->createdMsk);
if (session->createdMsk == 0) {
session->apm = session->ap_builder.Create();
if (session->apm == NULL) {
ALOGW("Session_CreateEffect could not get apm engine");
goto error;
}
session->frameCount = kPreprocDefaultSr / 100;
session->samplingRate = kPreprocDefaultSr;
session->inChannelCount = kPreProcDefaultCnl;
session->outChannelCount = kPreProcDefaultCnl;
session->inputConfig.set_sample_rate_hz(kPreprocDefaultSr);
session->inputConfig.set_num_channels(kPreProcDefaultCnl);
session->outputConfig.set_sample_rate_hz(kPreprocDefaultSr);
session->outputConfig.set_num_channels(kPreProcDefaultCnl);
session->revChannelCount = kPreProcDefaultCnl;
session->revConfig.set_sample_rate_hz(kPreprocDefaultSr);
session->revConfig.set_num_channels(kPreProcDefaultCnl);
session->enabledMsk = 0;
session->processedMsk = 0;
session->revEnabledMsk = 0;
session->revProcessedMsk = 0;
}
status = Effect_Create(&session->effects[procId], session, interface);
if (status < 0) {
goto error;
}
ALOGV("Session_CreateEffect OK");
session->createdMsk |= (1 << procId);
return status;
error:
if (session->createdMsk == 0) {
delete session->apm;
session->apm = NULL;
}
return status;
}
int Session_ReleaseEffect(preproc_session_t* session, preproc_effect_t* fx) {
ALOGW_IF(Effect_Release(fx) != 0, " Effect_Release() failed for proc ID %d", fx->procId);
session->createdMsk &= ~(1 << fx->procId);
if (session->createdMsk == 0) {
delete session->apm;
session->apm = NULL;
session->id = 0;
}
return 0;
}
int Session_SetConfig(preproc_session_t* session, effect_config_t* config) {
uint32_t inCnl = audio_channel_count_from_in_mask(config->inputCfg.channels);
uint32_t outCnl = audio_channel_count_from_in_mask(config->outputCfg.channels);
if (config->inputCfg.samplingRate != config->outputCfg.samplingRate ||
config->inputCfg.format != config->outputCfg.format ||
config->inputCfg.format != AUDIO_FORMAT_PCM_16_BIT) {
return -EINVAL;
}
ALOGV("Session_SetConfig sr %d cnl %08x", config->inputCfg.samplingRate,
config->inputCfg.channels);
session->samplingRate = config->inputCfg.samplingRate;
session->frameCount = session->samplingRate / 100;
session->inChannelCount = inCnl;
session->outChannelCount = outCnl;
session->inputConfig.set_sample_rate_hz(session->samplingRate);
session->inputConfig.set_num_channels(inCnl);
session->outputConfig.set_sample_rate_hz(session->samplingRate);
session->outputConfig.set_num_channels(inCnl);
session->revChannelCount = inCnl;
session->revConfig.set_sample_rate_hz(session->samplingRate);
session->revConfig.set_num_channels(inCnl);
session->state = PREPROC_SESSION_STATE_CONFIG;
return 0;
}
void Session_GetConfig(preproc_session_t* session, effect_config_t* config) {
memset(config, 0, sizeof(effect_config_t));
config->inputCfg.samplingRate = config->outputCfg.samplingRate = session->samplingRate;
config->inputCfg.format = config->outputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
config->inputCfg.channels = audio_channel_in_mask_from_count(session->inChannelCount);
// "out" doesn't mean output device, so this is the correct API to convert channel count to mask
config->outputCfg.channels = audio_channel_in_mask_from_count(session->outChannelCount);
config->inputCfg.mask = config->outputCfg.mask =
(EFFECT_CONFIG_SMP_RATE | EFFECT_CONFIG_CHANNELS | EFFECT_CONFIG_FORMAT);
}
int Session_SetReverseConfig(preproc_session_t* session, effect_config_t* config) {
if (config->inputCfg.samplingRate != config->outputCfg.samplingRate ||
config->inputCfg.format != config->outputCfg.format ||
config->inputCfg.format != AUDIO_FORMAT_PCM_16_BIT) {
return -EINVAL;
}
ALOGV("Session_SetReverseConfig sr %d cnl %08x", config->inputCfg.samplingRate,
config->inputCfg.channels);
if (session->state < PREPROC_SESSION_STATE_CONFIG) {
return -ENOSYS;
}
if (config->inputCfg.samplingRate != session->samplingRate ||
config->inputCfg.format != AUDIO_FORMAT_PCM_16_BIT) {
return -EINVAL;
}
uint32_t inCnl = audio_channel_count_from_out_mask(config->inputCfg.channels);
session->revChannelCount = inCnl;
return 0;
}
void Session_GetReverseConfig(preproc_session_t* session, effect_config_t* config) {
memset(config, 0, sizeof(effect_config_t));
config->inputCfg.samplingRate = config->outputCfg.samplingRate = session->samplingRate;
config->inputCfg.format = config->outputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
config->inputCfg.channels = config->outputCfg.channels =
audio_channel_in_mask_from_count(session->revChannelCount);
config->inputCfg.mask = config->outputCfg.mask =
(EFFECT_CONFIG_SMP_RATE | EFFECT_CONFIG_CHANNELS | EFFECT_CONFIG_FORMAT);
}
void Session_SetProcEnabled(preproc_session_t* session, uint32_t procId, bool enabled) {
if (enabled) {
session->enabledMsk |= (1 << procId);
if (HasReverseStream(procId)) {
session->revEnabledMsk |= (1 << procId);
}
} else {
session->enabledMsk &= ~(1 << procId);
if (HasReverseStream(procId)) {
session->revEnabledMsk &= ~(1 << procId);
}
}
ALOGV("Session_SetProcEnabled proc %d, enabled %d enabledMsk %08x revEnabledMsk %08x", procId,
enabled, session->enabledMsk, session->revEnabledMsk);
session->processedMsk = 0;
if (HasReverseStream(procId)) {
session->revProcessedMsk = 0;
}
}
//------------------------------------------------------------------------------
// Bundle functions
//------------------------------------------------------------------------------
static int sInitStatus = 1;
static preproc_session_t sSessions[PREPROC_NUM_SESSIONS];
preproc_session_t* PreProc_GetSession(int32_t procId, int32_t sessionId, int32_t ioId) {
size_t i;
for (i = 0; i < PREPROC_NUM_SESSIONS; i++) {
if (sSessions[i].id == sessionId) {
if (sSessions[i].createdMsk & (1 << procId)) {
return NULL;
}
return &sSessions[i];
}
}
for (i = 0; i < PREPROC_NUM_SESSIONS; i++) {
if (sSessions[i].id == 0) {
sSessions[i].id = sessionId;
sSessions[i].io = ioId;
return &sSessions[i];
}
}
return NULL;
}
int PreProc_Init() {
size_t i;
int status = 0;
if (sInitStatus <= 0) {
return sInitStatus;
}
for (i = 0; i < PREPROC_NUM_SESSIONS && status == 0; i++) {
status = Session_Init(&sSessions[i]);
}
sInitStatus = status;
return sInitStatus;
}
const effect_descriptor_t* PreProc_GetDescriptor(const effect_uuid_t* uuid) {
size_t i;
for (i = 0; i < PREPROC_NUM_EFFECTS; i++) {
if (memcmp(&sDescriptors[i]->uuid, uuid, sizeof(effect_uuid_t)) == 0) {
return sDescriptors[i];
}
}
return NULL;
}
extern "C" {
//------------------------------------------------------------------------------
// Effect Control Interface Implementation
//------------------------------------------------------------------------------
int PreProcessingFx_Process(effect_handle_t self, audio_buffer_t* inBuffer,
audio_buffer_t* outBuffer) {
preproc_effect_t* effect = (preproc_effect_t*)self;
if (effect == NULL) {
ALOGV("PreProcessingFx_Process() ERROR effect == NULL");
return -EINVAL;
}
preproc_session_t* session = (preproc_session_t*)effect->session;
if (inBuffer == NULL || inBuffer->raw == NULL || outBuffer == NULL || outBuffer->raw == NULL) {
ALOGW("PreProcessingFx_Process() ERROR bad pointer");
return -EINVAL;
}
if (inBuffer->frameCount != outBuffer->frameCount) {
ALOGW("inBuffer->frameCount %zu is not equal to outBuffer->frameCount %zu",
inBuffer->frameCount, outBuffer->frameCount);
return -EINVAL;
}
if (inBuffer->frameCount != session->frameCount) {
ALOGW("inBuffer->frameCount %zu != %zu representing 10ms at sampling rate %d",
inBuffer->frameCount, session->frameCount, session->samplingRate);
return -EINVAL;
}
session->processedMsk |= (1 << effect->procId);
// ALOGV("PreProcessingFx_Process In %d frames enabledMsk %08x processedMsk %08x",
// inBuffer->frameCount, session->enabledMsk, session->processedMsk);
if ((session->processedMsk & session->enabledMsk) == session->enabledMsk) {
effect->session->processedMsk = 0;
if (int status = effect->session->apm->ProcessStream(
(const int16_t* const)inBuffer->s16,
(const webrtc::StreamConfig)effect->session->inputConfig,
(const webrtc::StreamConfig)effect->session->outputConfig,
(int16_t* const)outBuffer->s16);
status != 0) {
ALOGE("Process Stream failed with error %d\n", status);
return status;
}
return 0;
} else {
return -ENODATA;
}
}
int PreProcessingFx_Command(effect_handle_t self, uint32_t cmdCode, uint32_t cmdSize,
void* pCmdData, uint32_t* replySize, void* pReplyData) {
preproc_effect_t* effect = (preproc_effect_t*)self;
if (effect == NULL) {
return -EINVAL;
}
// ALOGV("PreProcessingFx_Command: command %d cmdSize %d",cmdCode, cmdSize);
switch (cmdCode) {
case EFFECT_CMD_INIT:
if (pReplyData == NULL || *replySize != sizeof(int)) {
return -EINVAL;
}
if (effect->ops->init) {
effect->ops->init(effect);
}
*(int*)pReplyData = 0;
break;
case EFFECT_CMD_SET_CONFIG: {
if (pCmdData == NULL || cmdSize != sizeof(effect_config_t) || pReplyData == NULL ||
*replySize != sizeof(int)) {
ALOGV("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_SET_CONFIG: ERROR");
return -EINVAL;
}
#ifdef DUAL_MIC_TEST
// make sure that the config command is accepted by making as if all effects were
// disabled: this is OK for functional tests
uint32_t enabledMsk = effect->session->enabledMsk;
if (gDualMicEnabled) {
effect->session->enabledMsk = 0;
}
#endif
*(int*)pReplyData = Session_SetConfig(effect->session, (effect_config_t*)pCmdData);
#ifdef DUAL_MIC_TEST
if (gDualMicEnabled) {
effect->session->enabledMsk = enabledMsk;
}
#endif
if (*(int*)pReplyData != 0) {
break;
}
if (effect->state != PREPROC_EFFECT_STATE_ACTIVE) {
*(int*)pReplyData = Effect_SetState(effect, PREPROC_EFFECT_STATE_CONFIG);
}
} break;
case EFFECT_CMD_GET_CONFIG:
if (pReplyData == NULL || *replySize != sizeof(effect_config_t)) {
ALOGV("\tLVM_ERROR : PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_GET_CONFIG: ERROR");
return -EINVAL;
}
Session_GetConfig(effect->session, (effect_config_t*)pReplyData);
break;
case EFFECT_CMD_SET_CONFIG_REVERSE:
if (pCmdData == NULL || cmdSize != sizeof(effect_config_t) || pReplyData == NULL ||
*replySize != sizeof(int)) {
ALOGV("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_SET_CONFIG_REVERSE: ERROR");
return -EINVAL;
}
*(int*)pReplyData =
Session_SetReverseConfig(effect->session, (effect_config_t*)pCmdData);
if (*(int*)pReplyData != 0) {
break;
}
break;
case EFFECT_CMD_GET_CONFIG_REVERSE:
if (pReplyData == NULL || *replySize != sizeof(effect_config_t)) {
ALOGV("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_GET_CONFIG_REVERSE: ERROR");
return -EINVAL;
}
Session_GetReverseConfig(effect->session, (effect_config_t*)pCmdData);
break;
case EFFECT_CMD_RESET:
if (effect->ops->reset) {
effect->ops->reset(effect);
}
break;
case EFFECT_CMD_GET_PARAM: {
effect_param_t* p = (effect_param_t*)pCmdData;
if (pCmdData == NULL || cmdSize < sizeof(effect_param_t) ||
cmdSize < (sizeof(effect_param_t) + p->psize) || pReplyData == NULL ||
replySize == NULL || *replySize < (sizeof(effect_param_t) + p->psize)) {
ALOGV("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_GET_PARAM: ERROR");
return -EINVAL;
}
memcpy(pReplyData, pCmdData, sizeof(effect_param_t) + p->psize);
p = (effect_param_t*)pReplyData;
int voffset = ((p->psize - 1) / sizeof(int32_t) + 1) * sizeof(int32_t);
if (effect->ops->get_parameter) {
p->status =
effect->ops->get_parameter(effect, p->data, &p->vsize, p->data + voffset);
*replySize = sizeof(effect_param_t) + voffset + p->vsize;
}
} break;
case EFFECT_CMD_SET_PARAM: {
if (pCmdData == NULL || cmdSize < sizeof(effect_param_t) || pReplyData == NULL ||
replySize == NULL || *replySize != sizeof(int32_t)) {
ALOGV("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_SET_PARAM: ERROR");
return -EINVAL;
}
effect_param_t* p = (effect_param_t*)pCmdData;
if (p->psize != sizeof(int32_t)) {
ALOGV("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_SET_PARAM: ERROR, psize is not sizeof(int32_t)");
return -EINVAL;
}
if (effect->ops->set_parameter) {
*(int*)pReplyData =
effect->ops->set_parameter(effect, (void*)p->data, p->data + p->psize);
}
} break;
case EFFECT_CMD_ENABLE:
if (pReplyData == NULL || replySize == NULL || *replySize != sizeof(int)) {
ALOGV("PreProcessingFx_Command cmdCode Case: EFFECT_CMD_ENABLE: ERROR");
return -EINVAL;
}
*(int*)pReplyData = Effect_SetState(effect, PREPROC_EFFECT_STATE_ACTIVE);
break;
case EFFECT_CMD_DISABLE:
if (pReplyData == NULL || replySize == NULL || *replySize != sizeof(int)) {
ALOGV("PreProcessingFx_Command cmdCode Case: EFFECT_CMD_DISABLE: ERROR");
return -EINVAL;
}
*(int*)pReplyData = Effect_SetState(effect, PREPROC_EFFECT_STATE_CONFIG);
break;
case EFFECT_CMD_SET_DEVICE:
case EFFECT_CMD_SET_INPUT_DEVICE:
if (pCmdData == NULL || cmdSize != sizeof(uint32_t)) {
ALOGV("PreProcessingFx_Command cmdCode Case: EFFECT_CMD_SET_DEVICE: ERROR");
return -EINVAL;
}
if (effect->ops->set_device) {
effect->ops->set_device(effect, *(uint32_t*)pCmdData);
}
break;
case EFFECT_CMD_SET_VOLUME:
case EFFECT_CMD_SET_AUDIO_MODE:
break;
#ifdef DUAL_MIC_TEST
///// test commands start
case PREPROC_CMD_DUAL_MIC_ENABLE: {
if (pCmdData == NULL || cmdSize != sizeof(uint32_t) || pReplyData == NULL ||
replySize == NULL) {
ALOGE("PreProcessingFx_Command cmdCode Case: "
"PREPROC_CMD_DUAL_MIC_ENABLE: ERROR");
*replySize = 0;
return -EINVAL;
}
gDualMicEnabled = *(bool*)pCmdData;
if (gDualMicEnabled) {
effect->aux_channels_on = sHasAuxChannels[effect->procId];
} else {
effect->aux_channels_on = false;
}
effect->cur_channel_config =
(effect->session->inChannelCount == 1) ? CHANNEL_CFG_MONO : CHANNEL_CFG_STEREO;
ALOGV("PREPROC_CMD_DUAL_MIC_ENABLE: %s", gDualMicEnabled ? "enabled" : "disabled");
*replySize = sizeof(int);
*(int*)pReplyData = 0;
} break;
case PREPROC_CMD_DUAL_MIC_PCM_DUMP_START: {
if (pCmdData == NULL || pReplyData == NULL || replySize == NULL) {
ALOGE("PreProcessingFx_Command cmdCode Case: "
"PREPROC_CMD_DUAL_MIC_PCM_DUMP_START: ERROR");
*replySize = 0;
return -EINVAL;
}
pthread_mutex_lock(&gPcmDumpLock);
if (gPcmDumpFh != NULL) {
fclose(gPcmDumpFh);
gPcmDumpFh = NULL;
}
char* path = strndup((char*)pCmdData, cmdSize);
gPcmDumpFh = fopen((char*)path, "wb");
pthread_mutex_unlock(&gPcmDumpLock);
ALOGV("PREPROC_CMD_DUAL_MIC_PCM_DUMP_START: path %s gPcmDumpFh %p", path, gPcmDumpFh);
ALOGE_IF(gPcmDumpFh <= 0, "gPcmDumpFh open error %d %s", errno, strerror(errno));
free(path);
*replySize = sizeof(int);
*(int*)pReplyData = 0;
} break;
case PREPROC_CMD_DUAL_MIC_PCM_DUMP_STOP: {
if (pReplyData == NULL || replySize == NULL) {
ALOGE("PreProcessingFx_Command cmdCode Case: "
"PREPROC_CMD_DUAL_MIC_PCM_DUMP_STOP: ERROR");
*replySize = 0;
return -EINVAL;
}
pthread_mutex_lock(&gPcmDumpLock);
if (gPcmDumpFh != NULL) {
fclose(gPcmDumpFh);
gPcmDumpFh = NULL;
}
pthread_mutex_unlock(&gPcmDumpLock);
ALOGV("PREPROC_CMD_DUAL_MIC_PCM_DUMP_STOP");
*replySize = sizeof(int);
*(int*)pReplyData = 0;
} break;
///// test commands end
case EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS: {
if (!gDualMicEnabled) {
return -EINVAL;
}
if (pCmdData == NULL || cmdSize != 2 * sizeof(uint32_t) || pReplyData == NULL ||
replySize == NULL) {
ALOGE("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS: ERROR");
*replySize = 0;
return -EINVAL;
}
if (*(uint32_t*)pCmdData != EFFECT_FEATURE_AUX_CHANNELS || !effect->aux_channels_on) {
ALOGV("PreProcessingFx_Command feature EFFECT_FEATURE_AUX_CHANNELS not supported by"
" fx %d",
effect->procId);
*(uint32_t*)pReplyData = -ENOSYS;
*replySize = sizeof(uint32_t);
break;
}
size_t num_configs = *((uint32_t*)pCmdData + 1);
if (*replySize < (2 * sizeof(uint32_t) + num_configs * sizeof(channel_config_t))) {
*replySize = 0;
return -EINVAL;
}
*((uint32_t*)pReplyData + 1) = CHANNEL_CFG_CNT;
if (num_configs < CHANNEL_CFG_CNT ||
*replySize < (2 * sizeof(uint32_t) + CHANNEL_CFG_CNT * sizeof(channel_config_t))) {
*(uint32_t*)pReplyData = -ENOMEM;
} else {
num_configs = CHANNEL_CFG_CNT;
*(uint32_t*)pReplyData = 0;
}
ALOGV("PreProcessingFx_Command EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS num config %d",
num_configs);
*replySize = 2 * sizeof(uint32_t) + num_configs * sizeof(channel_config_t);
*((uint32_t*)pReplyData + 1) = num_configs;
memcpy((uint32_t*)pReplyData + 2, &sDualMicConfigs,
num_configs * sizeof(channel_config_t));
} break;
case EFFECT_CMD_GET_FEATURE_CONFIG:
if (!gDualMicEnabled) {
return -EINVAL;
}
if (pCmdData == NULL || cmdSize != sizeof(uint32_t) || pReplyData == NULL ||
replySize == NULL || *replySize < sizeof(uint32_t) + sizeof(channel_config_t)) {
ALOGE("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_GET_FEATURE_CONFIG: ERROR");
return -EINVAL;
}
if (*(uint32_t*)pCmdData != EFFECT_FEATURE_AUX_CHANNELS || !effect->aux_channels_on) {
*(uint32_t*)pReplyData = -ENOSYS;
*replySize = sizeof(uint32_t);
break;
}
ALOGV("PreProcessingFx_Command EFFECT_CMD_GET_FEATURE_CONFIG");
*(uint32_t*)pReplyData = 0;
*replySize = sizeof(uint32_t) + sizeof(channel_config_t);
memcpy((uint32_t*)pReplyData + 1, &sDualMicConfigs[effect->cur_channel_config],
sizeof(channel_config_t));
break;
case EFFECT_CMD_SET_FEATURE_CONFIG: {
ALOGV("PreProcessingFx_Command EFFECT_CMD_SET_FEATURE_CONFIG: "
"gDualMicEnabled %d effect->aux_channels_on %d",
gDualMicEnabled, effect->aux_channels_on);
if (!gDualMicEnabled) {
return -EINVAL;
}
if (pCmdData == NULL || cmdSize != (sizeof(uint32_t) + sizeof(channel_config_t)) ||
pReplyData == NULL || replySize == NULL || *replySize < sizeof(uint32_t)) {
ALOGE("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_SET_FEATURE_CONFIG: ERROR\n"
"pCmdData %p cmdSize %d pReplyData %p replySize %p *replySize %d",
pCmdData, cmdSize, pReplyData, replySize, replySize ? *replySize : -1);
return -EINVAL;
}
*replySize = sizeof(uint32_t);
if (*(uint32_t*)pCmdData != EFFECT_FEATURE_AUX_CHANNELS || !effect->aux_channels_on) {
*(uint32_t*)pReplyData = -ENOSYS;
ALOGV("PreProcessingFx_Command cmdCode Case: "
"EFFECT_CMD_SET_FEATURE_CONFIG: ERROR\n"
"CmdData %d effect->aux_channels_on %d",
*(uint32_t*)pCmdData, effect->aux_channels_on);
break;
}
size_t i;
for (i = 0; i < CHANNEL_CFG_CNT; i++) {
if (memcmp((uint32_t*)pCmdData + 1, &sDualMicConfigs[i],
sizeof(channel_config_t)) == 0) {
break;
}
}
if (i == CHANNEL_CFG_CNT) {
*(uint32_t*)pReplyData = -EINVAL;
ALOGW("PreProcessingFx_Command EFFECT_CMD_SET_FEATURE_CONFIG invalid config"
"[%08x].[%08x]",
*((uint32_t*)pCmdData + 1), *((uint32_t*)pCmdData + 2));
} else {
effect->cur_channel_config = i;
*(uint32_t*)pReplyData = 0;
ALOGV("PreProcessingFx_Command EFFECT_CMD_SET_FEATURE_CONFIG New config"
"[%08x].[%08x]",
sDualMicConfigs[i].main_channels, sDualMicConfigs[i].aux_channels);
}
} break;
#endif
default:
return -EINVAL;
}
return 0;
}
int PreProcessingFx_GetDescriptor(effect_handle_t self, effect_descriptor_t* pDescriptor) {
preproc_effect_t* effect = (preproc_effect_t*)self;
if (effect == NULL || pDescriptor == NULL) {
return -EINVAL;
}
*pDescriptor = *sDescriptors[effect->procId];
return 0;
}
int PreProcessingFx_ProcessReverse(effect_handle_t self, audio_buffer_t* inBuffer,
audio_buffer_t* outBuffer) {
preproc_effect_t* effect = (preproc_effect_t*)self;
if (effect == NULL) {
ALOGW("PreProcessingFx_ProcessReverse() ERROR effect == NULL");
return -EINVAL;
}
preproc_session_t* session = (preproc_session_t*)effect->session;
if (inBuffer == NULL || inBuffer->raw == NULL) {
ALOGW("PreProcessingFx_ProcessReverse() ERROR bad pointer");
return -EINVAL;
}
if (inBuffer->frameCount != outBuffer->frameCount) {
ALOGW("inBuffer->frameCount %zu is not equal to outBuffer->frameCount %zu",
inBuffer->frameCount, outBuffer->frameCount);
return -EINVAL;
}
if (inBuffer->frameCount != session->frameCount) {
ALOGW("inBuffer->frameCount %zu != %zu representing 10ms at sampling rate %d",
inBuffer->frameCount, session->frameCount, session->samplingRate);
return -EINVAL;
}
session->revProcessedMsk |= (1 << effect->procId);
// ALOGV("PreProcessingFx_ProcessReverse In %d frames revEnabledMsk %08x revProcessedMsk
// %08x",
// inBuffer->frameCount, session->revEnabledMsk, session->revProcessedMsk);
if ((session->revProcessedMsk & session->revEnabledMsk) == session->revEnabledMsk) {
effect->session->revProcessedMsk = 0;
if (int status = effect->session->apm->ProcessReverseStream(
(const int16_t* const)inBuffer->s16,
(const webrtc::StreamConfig)effect->session->revConfig,
(const webrtc::StreamConfig)effect->session->revConfig,
(int16_t* const)outBuffer->s16);
status != 0) {
ALOGE("Process Reverse Stream failed with error %d\n", status);
return status;
}
return 0;
} else {
return -ENODATA;
}
}
// effect_handle_t interface implementation for effect
const struct effect_interface_s sEffectInterface = {
PreProcessingFx_Process, PreProcessingFx_Command, PreProcessingFx_GetDescriptor, NULL};
const struct effect_interface_s sEffectInterfaceReverse = {
PreProcessingFx_Process, PreProcessingFx_Command, PreProcessingFx_GetDescriptor,
PreProcessingFx_ProcessReverse};
//------------------------------------------------------------------------------
// Effect Library Interface Implementation
//------------------------------------------------------------------------------
int PreProcessingLib_Create(const effect_uuid_t* uuid, int32_t sessionId, int32_t ioId,
effect_handle_t* pInterface) {
ALOGV("EffectCreate: uuid: %08x session %d IO: %d", uuid->timeLow, sessionId, ioId);
int status;
const effect_descriptor_t* desc;
preproc_session_t* session;
uint32_t procId;
if (PreProc_Init() != 0) {
return sInitStatus;
}
desc = PreProc_GetDescriptor(uuid);
if (desc == NULL) {
ALOGW("EffectCreate: fx not found uuid: %08x", uuid->timeLow);
return -EINVAL;
}
procId = UuidToProcId(&desc->type);
session = PreProc_GetSession(procId, sessionId, ioId);
if (session == NULL) {
ALOGW("EffectCreate: no more session available");
return -EINVAL;
}
status = Session_CreateEffect(session, procId, pInterface);
if (status < 0 && session->createdMsk == 0) {
session->id = 0;
}
return status;
}
int PreProcessingLib_Release(effect_handle_t interface) {
ALOGV("EffectRelease start %p", interface);
if (PreProc_Init() != 0) {
return sInitStatus;
}
preproc_effect_t* fx = (preproc_effect_t*)interface;
if (fx->session->id == 0) {
return -EINVAL;
}
return Session_ReleaseEffect(fx->session, fx);
}
int PreProcessingLib_GetDescriptor(const effect_uuid_t* uuid, effect_descriptor_t* pDescriptor) {
if (pDescriptor == NULL || uuid == NULL) {
return -EINVAL;
}
const effect_descriptor_t* desc = PreProc_GetDescriptor(uuid);
if (desc == NULL) {
ALOGV("PreProcessingLib_GetDescriptor() not found");
return -EINVAL;
}
ALOGV("PreProcessingLib_GetDescriptor() got fx %s", desc->name);
*pDescriptor = *desc;
return 0;
}
// This is the only symbol that needs to be exported
__attribute__((visibility("default"))) audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM = {
.tag = AUDIO_EFFECT_LIBRARY_TAG,
.version = EFFECT_LIBRARY_API_VERSION,
.name = "Audio Preprocessing Library",
.implementor = "The Android Open Source Project",
.create_effect = PreProcessingLib_Create,
.release_effect = PreProcessingLib_Release,
.get_descriptor = PreProcessingLib_GetDescriptor};
}; // extern "C"