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android_hardware_qcom_audio/hal/audio_extn/ssr.c

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/*
* Copyright (c) 2013-2018, 2020, The Linux Foundation. All rights reserved.
* Not a Contribution.
*
* Copyright (C) 2013 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.
*/
#define LOG_TAG "audio_hw_ssr"
/*#define LOG_NDEBUG 0*/
#define LOG_NDDEBUG 0
#include <errno.h>
#include <cutils/properties.h>
#include <stdlib.h>
#include <dlfcn.h>
#include <cutils/str_parms.h>
#include <log/log.h>
#include <pthread.h>
#include <cutils/sched_policy.h>
#include <sys/resource.h>
#include <system/thread_defs.h>
#include "audio_hw.h"
#include "audio_extn.h"
#include "platform.h"
#include "platform_api.h"
#include "surround_rec_interface.h"
#ifdef DYNAMIC_LOG_ENABLED
#include <log_xml_parser.h>
#define LOG_MASK HAL_MOD_FILE_SSR
#include <log_utils.h>
#endif
#define COEFF_ARRAY_SIZE 4
#define FILT_SIZE ((512+1)* 6) /* # ((FFT bins)/2+1)*numOutputs */
#define SSR_CHANNEL_OUTPUT_NUM 6
#define SSR_PERIOD_SIZE 240
#define NUM_IN_BUFS 4
#define NUM_OUT_BUFS 4
#define NUM_IN_CHANNELS 3
#define LIB_SURROUND_3MIC_PROC "libsurround_3mic_proc.so"
#define LIB_DRC "libdrc.so"
#define AUDIO_PARAMETER_SSRMODE_ON "ssrOn"
typedef short Word16;
typedef const get_param_data_t* (*surround_rec_get_get_param_data_t)(void);
typedef const set_param_data_t* (*surround_rec_get_set_param_data_t)(void);
typedef int (*surround_rec_init_t)(void **, int, int, int, int, const char *);
typedef void (*surround_rec_deinit_t)(void *);
typedef void (*surround_rec_process_t)(void *, const int16_t *, int16_t *);
typedef int (*drc_init_t)(void **, int, int, const char *);
typedef void (*drc_deinit_t)(void *);
typedef int (*drc_process_t)(void *, const int16_t *, int16_t *);
struct pcm_buffer {
void *data;
int length;
};
struct pcm_buffer_queue {
struct pcm_buffer_queue *next;
struct pcm_buffer buffer;
};
struct ssr_module {
int ssr_3mic;
int num_out_chan;
FILE *fp_input;
FILE *fp_output;
void *surround_obj;
Word16 *surround_raw_buffer;
int surround_raw_buffer_size;
bool is_ssr_enabled;
struct stream_in *in;
void *drc_obj;
void *surround_rec_handle;
surround_rec_get_get_param_data_t surround_rec_get_get_param_data;
surround_rec_get_set_param_data_t surround_rec_get_set_param_data;
surround_rec_init_t surround_rec_init;
surround_rec_deinit_t surround_rec_deinit;
surround_rec_process_t surround_rec_process;
void *drc_handle;
drc_init_t drc_init;
drc_deinit_t drc_deinit;
drc_process_t drc_process;
pthread_t ssr_process_thread;
bool ssr_process_thread_started;
bool ssr_process_thread_stop;
struct pcm_buffer_queue in_buf_nodes[NUM_IN_BUFS];
struct pcm_buffer_queue out_buf_nodes[NUM_OUT_BUFS];
void *in_buf_data;
void *out_buf_data;
struct pcm_buffer_queue *out_buf_free;
struct pcm_buffer_queue *out_buf;
struct pcm_buffer_queue *in_buf_free;
struct pcm_buffer_queue *in_buf;
pthread_mutex_t ssr_process_lock;
pthread_cond_t cond_process;
pthread_cond_t cond_read;
bool is_ssr_mode_on;
};
static struct ssr_module ssrmod = {
.fp_input = NULL,
.fp_output = NULL,
.surround_obj = NULL,
.surround_raw_buffer = NULL,
.surround_raw_buffer_size = 0,
.is_ssr_enabled = 0,
.in = NULL,
.drc_obj = NULL,
.surround_rec_handle = NULL,
.surround_rec_get_get_param_data = NULL,
.surround_rec_get_set_param_data = NULL,
.surround_rec_init = NULL,
.surround_rec_deinit = NULL,
.surround_rec_process = NULL,
.drc_handle = NULL,
.drc_init = NULL,
.drc_deinit = NULL,
.drc_process = NULL,
.ssr_process_thread_stop = 0,
.ssr_process_thread_started = 0,
.in_buf_data = NULL,
.out_buf_data = NULL,
.out_buf_free = NULL,
.out_buf = NULL,
.in_buf_free = NULL,
.in_buf = NULL,
.cond_process = PTHREAD_COND_INITIALIZER,
.cond_read = PTHREAD_COND_INITIALIZER,
.ssr_process_lock = PTHREAD_MUTEX_INITIALIZER,
.is_ssr_mode_on = false,
};
static void *ssr_process_thread(void *context);
static int32_t drc_init_lib(int num_chan, int sample_rate __unused)
{
int ret = 0;
const char *cfgFileName = "";
if (ssrmod.drc_obj) {
ALOGE("%s: DRC library is already initialized", __func__);
return 0;
}
ssrmod.drc_handle = dlopen(LIB_DRC, RTLD_NOW);
if (ssrmod.drc_handle == NULL) {
ALOGE("%s: DLOPEN failed for %s", __func__, LIB_DRC);
ret = -ENOSYS;
goto init_fail;
}
ALOGV("%s: DLOPEN successful for %s", __func__, LIB_DRC);
ssrmod.drc_init = (drc_init_t)
dlsym(ssrmod.drc_handle, "DRC_init");
ssrmod.drc_deinit = (drc_deinit_t)
dlsym(ssrmod.drc_handle, "DRC_deinit");
ssrmod.drc_process = (drc_process_t)
dlsym(ssrmod.drc_handle, "DRC_process");
if (!ssrmod.drc_init ||
!ssrmod.drc_deinit ||
!ssrmod.drc_process){
ALOGW("%s: Could not find one of the symbols from %s",
__func__, LIB_DRC);
ret = -ENOSYS;
goto init_fail;
}
/* TO DO: different config files for different sample rates */
if (num_chan == 6) {
cfgFileName = "/vendor/etc/drc/drc_cfg_5.1.txt";
} else if (num_chan == 2) {
cfgFileName = "/vendor/etc/drc/drc_cfg_AZ.txt";
}
ALOGV("%s: Calling drc_init: num ch: %d, period: %d, cfg file: %s", __func__, num_chan, SSR_PERIOD_SIZE, cfgFileName);
ret = ssrmod.drc_init(&ssrmod.drc_obj, num_chan, SSR_PERIOD_SIZE, cfgFileName);
if (ret) {
ALOGE("drc_init failed with ret:%d",ret);
ret = -EINVAL;
goto init_fail;
}
return 0;
init_fail:
if (ssrmod.drc_obj) {
ssrmod.drc_obj = NULL;
}
if(ssrmod.drc_handle) {
dlclose(ssrmod.drc_handle);
ssrmod.drc_handle = NULL;
}
return ret;
}
static int32_t ssr_init_surround_sound_3mic_lib(unsigned long buffersize, int num_in_chan, int num_out_chan, int sample_rate)
{
int ret = 0;
const char *cfgFileName = NULL;
if ( ssrmod.surround_obj ) {
ALOGE("%s: surround sound library is already initialized", __func__);
return 0;
}
ssrmod.surround_rec_handle = dlopen(LIB_SURROUND_3MIC_PROC, RTLD_NOW);
if (ssrmod.surround_rec_handle == NULL) {
ALOGE("%s: DLOPEN failed for %s", __func__, LIB_SURROUND_3MIC_PROC);
goto init_fail;
} else {
ALOGV("%s: DLOPEN successful for %s", __func__, LIB_SURROUND_3MIC_PROC);
ssrmod.surround_rec_get_get_param_data = (surround_rec_get_get_param_data_t)
dlsym(ssrmod.surround_rec_handle, "surround_rec_get_get_param_data");
ssrmod.surround_rec_get_set_param_data = (surround_rec_get_set_param_data_t)
dlsym(ssrmod.surround_rec_handle, "surround_rec_get_set_param_data");
ssrmod.surround_rec_init = (surround_rec_init_t)
dlsym(ssrmod.surround_rec_handle, "surround_rec_init");
ssrmod.surround_rec_deinit = (surround_rec_deinit_t)
dlsym(ssrmod.surround_rec_handle, "surround_rec_deinit");
ssrmod.surround_rec_process = (surround_rec_process_t)
dlsym(ssrmod.surround_rec_handle, "surround_rec_process");
if (!ssrmod.surround_rec_get_get_param_data ||
!ssrmod.surround_rec_get_set_param_data ||
!ssrmod.surround_rec_init ||
!ssrmod.surround_rec_deinit ||
!ssrmod.surround_rec_process){
ALOGW("%s: Could not find the one of the symbols from %s",
__func__, LIB_SURROUND_3MIC_PROC);
ret = -ENOSYS;
goto init_fail;
}
}
/* Allocate memory for input buffer */
ssrmod.surround_raw_buffer = (Word16 *) calloc(buffersize,
sizeof(Word16));
if (!ssrmod.surround_raw_buffer) {
ALOGE("%s: Memory allocation failure. Not able to allocate "
"memory for surroundInputBuffer", __func__);
ret = -ENOMEM;
goto init_fail;
}
ssrmod.surround_raw_buffer_size = buffersize;
ssrmod.num_out_chan = num_out_chan;
if (num_out_chan == 6) {
cfgFileName = "/vendor/etc/surround_sound_3mic/surround_sound_rec_5.1.cfg";
} else if (num_out_chan == 2) {
cfgFileName = "/vendor/etc/surround_sound_3mic/surround_sound_rec_AZ.cfg";
} else {
ALOGE("%s: No cfg file for num_out_chan: %d", __func__, num_out_chan);
}
ALOGV("%s: Calling surround_rec_init: in ch: %d, out ch: %d, period: %d, sample rate: %d, cfg file: %s",
__func__, num_in_chan, num_out_chan, SSR_PERIOD_SIZE, sample_rate, cfgFileName);
ret = ssrmod.surround_rec_init(&ssrmod.surround_obj,
num_in_chan, num_out_chan, SSR_PERIOD_SIZE, sample_rate, cfgFileName);
if (ret) {
ALOGE("surround_rec_init failed with ret:%d",ret);
ret = -EINVAL;
goto init_fail;
}
return 0;
init_fail:
if (ssrmod.surround_obj) {
ssrmod.surround_obj = NULL;
}
if (ssrmod.surround_raw_buffer) {
free(ssrmod.surround_raw_buffer);
ssrmod.surround_raw_buffer = NULL;
ssrmod.surround_raw_buffer_size = 0;
}
if(ssrmod.surround_rec_handle) {
dlclose(ssrmod.surround_rec_handle);
ssrmod.surround_rec_handle = NULL;
}
return ret;
}
void ssr_update_enabled()
{
char ssr_enabled[PROPERTY_VALUE_MAX] = "false";
property_get("ro.vendor.audio.sdk.ssr",ssr_enabled,"0");
if (!strncmp("true", ssr_enabled, 4)) {
ALOGD("%s: surround sound recording is supported", __func__);
ssrmod.is_ssr_enabled = true;
} else {
ALOGD("%s: surround sound recording is not supported", __func__);
ssrmod.is_ssr_enabled = false;
}
}
bool ssr_get_enabled()
{
ALOGV("%s: is_ssr_enabled:%d is_ssr_mode_on:%d ", __func__, ssrmod.is_ssr_enabled, ssrmod.is_ssr_mode_on);
if(ssrmod.is_ssr_enabled && ssrmod.is_ssr_mode_on)
return true;
return false;
}
bool ssr_check_usecase(struct stream_in *in) {
int ret = false;
int channel_count = audio_channel_count_from_in_mask(in->channel_mask);
audio_devices_t devices = get_device_types(&in->device_list);
audio_source_t source = in->source;
if ((ssr_get_enabled()) &&
((channel_count == 2) || (channel_count == 6)) &&
((AUDIO_SOURCE_MIC == source) || (AUDIO_SOURCE_CAMCORDER == source)) &&
((AUDIO_DEVICE_IN_BUILTIN_MIC == devices) || (AUDIO_DEVICE_IN_BACK_MIC == devices)) &&
(in->format == AUDIO_FORMAT_PCM_16_BIT)) {
ALOGD("%s: SSR enabled with channel_count :%d",
__func__, channel_count);
ret = true;
}
return ret;
}
static void pcm_buffer_queue_push(struct pcm_buffer_queue **queue,
struct pcm_buffer_queue *node)
{
struct pcm_buffer_queue *iter;
node->next = NULL;
if ((*queue) == NULL) {
*queue = node;
} else {
iter = *queue;
while (iter->next) {
iter = iter->next;
}
iter->next = node;
}
}
static struct pcm_buffer_queue *pcm_buffer_queue_pop(struct pcm_buffer_queue **queue)
{
struct pcm_buffer_queue *node = (*queue);
if (node != NULL) {
*queue = node->next;
node->next = NULL;
}
return node;
}
static void deinit_ssr_process_thread()
{
pthread_mutex_lock(&ssrmod.ssr_process_lock);
ssrmod.ssr_process_thread_stop = 1;
if(ssrmod.in_buf_data != NULL)
free(ssrmod.in_buf_data);
ssrmod.in_buf_data = NULL;
ssrmod.in_buf = NULL;
ssrmod.in_buf_free = NULL;
if(ssrmod.out_buf_data != NULL)
free(ssrmod.out_buf_data);
ssrmod.out_buf_data = NULL;
ssrmod.out_buf = NULL;
ssrmod.out_buf_free = NULL;
pthread_cond_broadcast(&ssrmod.cond_process);
pthread_cond_broadcast(&ssrmod.cond_read);
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
if (ssrmod.ssr_process_thread_started) {
pthread_join(ssrmod.ssr_process_thread, (void **)NULL);
ssrmod.ssr_process_thread_started = 0;
}
}
struct stream_in *ssr_get_stream()
{
return ssrmod.in;
}
int32_t ssr_deinit()
{
ALOGV("%s: entry", __func__);
deinit_ssr_process_thread();
if (ssrmod.drc_obj) {
ssrmod.drc_deinit(ssrmod.drc_obj);
ssrmod.drc_obj = NULL;
}
if (ssrmod.surround_obj) {
if (ssrmod.ssr_3mic) {
ssrmod.surround_rec_deinit(ssrmod.surround_obj);
ssrmod.surround_obj = NULL;
}
if (ssrmod.surround_raw_buffer) {
free(ssrmod.surround_raw_buffer);
ssrmod.surround_raw_buffer = NULL;
}
if (ssrmod.fp_input)
fclose(ssrmod.fp_input);
if (ssrmod.fp_output)
fclose(ssrmod.fp_output);
}
if(ssrmod.drc_handle) {
dlclose(ssrmod.drc_handle);
ssrmod.drc_handle = NULL;
}
if(ssrmod.surround_rec_handle) {
dlclose(ssrmod.surround_rec_handle);
ssrmod.surround_rec_handle = NULL;
}
ssrmod.in = NULL;
//SSR session can be closed due to device switch
//Do not force reset ssr mode
//ssrmod.is_ssr_mode_on = false;
ALOGV("%s: exit", __func__);
return 0;
}
int32_t ssr_init(struct stream_in *in, int num_out_chan)
{
uint32_t ret = -1;
char c_multi_ch_dump[128] = {0};
uint32_t buffer_size;
ALOGD("%s: ssr case, sample rate %d", __func__, in->config.rate);
if (ssrmod.surround_obj != NULL) {
ALOGV("%s: reinitializing surround sound library", __func__);
ssr_deinit();
}
if (ssr_get_enabled()) {
ssrmod.ssr_3mic = 1;
} else {
ALOGE(" Rejecting SSR -- init is called without enabling SSR");
goto fail;
}
/* buffer size equals to period_size * period_count */
buffer_size = SSR_PERIOD_SIZE * NUM_IN_CHANNELS * sizeof(int16_t);
ALOGV("%s: buffer_size: %d", __func__, buffer_size);
if (ssrmod.ssr_3mic != 0) {
ret = ssr_init_surround_sound_3mic_lib(buffer_size, NUM_IN_CHANNELS, num_out_chan, in->config.rate);
if (0 != ret) {
ALOGE("%s: ssr_init_surround_sound_3mic_lib failed: %d "
"buffer_size:%d", __func__, ret, buffer_size);
goto fail;
}
}
/* Initialize DRC if available */
ret = drc_init_lib(num_out_chan, in->config.rate);
if (0 != ret) {
ALOGE("%s: drc_init_lib failed, ret %d", __func__, ret);
}
pthread_mutex_lock(&ssrmod.ssr_process_lock);
if (!ssrmod.ssr_process_thread_started) {
int i;
int output_buf_size = SSR_PERIOD_SIZE * sizeof(int16_t) * num_out_chan;
ssrmod.in_buf_data = (void *)calloc(buffer_size, NUM_IN_BUFS);
if (ssrmod.in_buf_data == NULL) {
ALOGE("%s: failed to allocate input buffer", __func__);
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
ret = -ENOMEM;
goto fail;
}
ssrmod.out_buf_data = (void *)calloc(output_buf_size, NUM_OUT_BUFS);
if (ssrmod.out_buf_data == NULL) {
ALOGE("%s: failed to allocate output buffer", __func__);
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
ret = -ENOMEM;
// ssrmod.in_buf_data will be freed in deinit_ssr_process_thread()
goto fail;
}
ssrmod.in_buf = NULL;
ssrmod.in_buf_free = NULL;
ssrmod.out_buf = NULL;
ssrmod.out_buf_free = NULL;
for (i=0; i < NUM_IN_BUFS; i++) {
struct pcm_buffer_queue *buf = &ssrmod.in_buf_nodes[i];
buf->buffer.data = &(((char *)ssrmod.in_buf_data)[i*buffer_size]);
buf->buffer.length = buffer_size;
pcm_buffer_queue_push(&ssrmod.in_buf_free, buf);
}
for (i=0; i < NUM_OUT_BUFS; i++) {
struct pcm_buffer_queue *buf = &ssrmod.out_buf_nodes[i];
buf->buffer.data = &(((char *)ssrmod.out_buf_data)[i*output_buf_size]);
buf->buffer.length = output_buf_size;
pcm_buffer_queue_push(&ssrmod.out_buf, buf);
}
ssrmod.ssr_process_thread_stop = 0;
ALOGV("%s: creating thread", __func__);
ret = pthread_create(&ssrmod.ssr_process_thread,
(const pthread_attr_t *) NULL,
ssr_process_thread, NULL);
if (ret != 0) {
ALOGE("%s: failed to create thread for surround sound recording.",
__func__);
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
goto fail;
}
ssrmod.ssr_process_thread_started = 1;
ALOGV("%s: done creating thread", __func__);
}
in->config.channels = NUM_IN_CHANNELS;
in->config.period_size = SSR_PERIOD_SIZE;
in->config.period_count = in->config.channels * sizeof(int16_t);
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
property_get("vendor.audio.ssr.pcmdump",c_multi_ch_dump,"0");
if (0 == strncmp("true", c_multi_ch_dump, sizeof("ssr.dump-pcm"))) {
/* Remember to change file system permission of data(e.g. chmod 777 data/),
otherwise, fopen may fail */
if ( !ssrmod.fp_input) {
ALOGD("%s: Opening ssr input dump file \n", __func__);
ssrmod.fp_input = fopen("/data/vendor/audio/ssr_input_3ch.pcm", "wb");
}
if ( !ssrmod.fp_output) {
if(ssrmod.num_out_chan == 6) {
ALOGD("%s: Opening ssr input dump file for 6 channel\n", __func__);
ssrmod.fp_output = fopen("/data/vendor/audio/ssr_output_6ch.pcm", "wb");
} else {
ALOGD("%s: Opening ssr input dump file for 2 channel\n", __func__);
ssrmod.fp_output = fopen("/data/vendor/audio/ssr_output_2ch.pcm", "wb");
}
}
if ((!ssrmod.fp_input) || (!ssrmod.fp_output)) {
ALOGE("%s: input dump or ouput dump open failed: mfp_4ch:%p mfp_6ch:%p",
__func__, ssrmod.fp_input, ssrmod.fp_output);
}
}
ssrmod.in = in;
ALOGV("%s: exit", __func__);
return 0;
fail:
(void) ssr_deinit();
return ret;
}
int ssr_set_usecase(struct stream_in *in,
struct audio_config *config,
bool *update_params)
{
int ret = -EINVAL;
int channel_count = audio_channel_count_from_in_mask(in->channel_mask);
audio_channel_representation_t representation =
audio_channel_mask_get_representation(in->channel_mask);
*update_params = false;
if (ssr_check_usecase(in)) {
if (representation == AUDIO_CHANNEL_REPRESENTATION_INDEX) {
/* update params in case channel representation index.
* on returning error, flinger will retry with supported representation passed
*/
ALOGD("%s: SSR supports only channel representation position, channel_mask(%#x)"
,__func__, config->channel_mask);
config->channel_mask = AUDIO_CHANNEL_IN_6;
ret = 0;
*update_params = true;
} else {
if (!ssr_init(in, channel_count)) {
ALOGD("%s: Created SSR session succesfully", __func__);
ret = 0;
} else {
ALOGE("%s: Unable to start SSR record session", __func__);
}
}
}
return ret;
}
static void *ssr_process_thread(void *context __unused)
{
int32_t ret;
ALOGV("%s: enter", __func__);
setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_URGENT_AUDIO);
set_sched_policy(0, SP_FOREGROUND);
pthread_mutex_lock(&ssrmod.ssr_process_lock);
while (!ssrmod.ssr_process_thread_stop) {
struct pcm_buffer_queue *out_buf;
struct pcm_buffer_queue *in_buf;
while ((!ssrmod.ssr_process_thread_stop) &&
((ssrmod.out_buf_free == NULL) ||
(ssrmod.in_buf == NULL))) {
ALOGV("%s: waiting for buffers", __func__);
pthread_cond_wait(&ssrmod.cond_process, &ssrmod.ssr_process_lock);
}
if (ssrmod.ssr_process_thread_stop) {
break;
}
ALOGV("%s: got buffers", __func__);
out_buf = pcm_buffer_queue_pop(&ssrmod.out_buf_free);
in_buf = pcm_buffer_queue_pop(&ssrmod.in_buf);
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
/* apply ssr libs to convert 4ch to 6ch */
if (ssrmod.ssr_3mic) {
ssrmod.surround_rec_process(ssrmod.surround_obj,
(int16_t *) in_buf->buffer.data,
(int16_t *) out_buf->buffer.data);
}
/* Run DRC if initialized */
if (ssrmod.drc_obj != NULL) {
ALOGV("%s: Running DRC", __func__);
ret = ssrmod.drc_process(ssrmod.drc_obj, out_buf->buffer.data, out_buf->buffer.data);
if (ret != 0) {
ALOGE("%s: drc_process returned %d", __func__, ret);
}
}
/*dump for raw pcm data*/
if (ssrmod.fp_input)
fwrite(in_buf->buffer.data, 1, in_buf->buffer.length, ssrmod.fp_input);
if (ssrmod.fp_output)
fwrite(out_buf->buffer.data, 1, out_buf->buffer.length, ssrmod.fp_output);
pthread_mutex_lock(&ssrmod.ssr_process_lock);
pcm_buffer_queue_push(&ssrmod.out_buf, out_buf);
pcm_buffer_queue_push(&ssrmod.in_buf_free, in_buf);
/* Read thread should go on without waiting for condition
* variable. If it has to wait (due to this thread not keeping
* up with the read requests), let this thread use the remainder
* of its buffers before waking up the read thread. */
if (ssrmod.in_buf == NULL) {
pthread_cond_signal(&ssrmod.cond_read);
}
}
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
ALOGV("%s: exit", __func__);
pthread_exit(NULL);
}
int32_t ssr_read(struct audio_stream_in *stream,
void *buffer, size_t bytes)
{
struct stream_in *in = (struct stream_in *)stream;
int32_t ret = 0;
struct pcm_buffer_queue *in_buf;
struct pcm_buffer_queue *out_buf;
ALOGV("%s: entry", __func__);
if (!ssrmod.surround_obj) {
ALOGE("%s: surround_obj not initialized", __func__);
return -ENOMEM;
}
ret = pcm_read(in->pcm, ssrmod.surround_raw_buffer, ssrmod.surround_raw_buffer_size);
if (ret < 0) {
ALOGE("%s: %s ret:%d", __func__, pcm_get_error(in->pcm),ret);
return ret;
}
pthread_mutex_lock(&ssrmod.ssr_process_lock);
if (!ssrmod.ssr_process_thread_started) {
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
ALOGV("%s: ssr_process_thread not initialized", __func__);
return -EINVAL;
}
if ((ssrmod.in_buf_free == NULL) || (ssrmod.out_buf == NULL)) {
ALOGE("%s: waiting for buffers", __func__);
pthread_cond_wait(&ssrmod.cond_read, &ssrmod.ssr_process_lock);
if ((ssrmod.in_buf_free == NULL) || (ssrmod.out_buf == NULL)) {
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
ALOGE("%s: failed to acquire buffers", __func__);
return -EINVAL;
}
}
in_buf = pcm_buffer_queue_pop(&ssrmod.in_buf_free);
out_buf = pcm_buffer_queue_pop(&ssrmod.out_buf);
memcpy(in_buf->buffer.data, ssrmod.surround_raw_buffer, in_buf->buffer.length);
pcm_buffer_queue_push(&ssrmod.in_buf, in_buf);
memcpy(buffer, out_buf->buffer.data, bytes);
pcm_buffer_queue_push(&ssrmod.out_buf_free, out_buf);
pthread_cond_signal(&ssrmod.cond_process);
pthread_mutex_unlock(&ssrmod.ssr_process_lock);
ALOGV("%s: exit", __func__);
return ret;
}
void ssr_set_parameters(struct audio_device *adev __unused,
struct str_parms *parms)
{
int err;
char value[4096] = {0};
//Do not update SSR mode during recording
if ( !ssrmod.surround_obj) {
int ret = 0;
ret = str_parms_get_str(parms, AUDIO_PARAMETER_SSRMODE_ON, value,
sizeof(value));
if (ret >= 0) {
if (strcmp(value, "true") == 0) {
ALOGD("Received SSR session request..setting SSR mode to true");
ssrmod.is_ssr_mode_on = true;
} else {
ALOGD("resetting SSR mode to false");
ssrmod.is_ssr_mode_on = false;
}
}
}
if (ssrmod.ssr_3mic && ssrmod.surround_obj) {
const set_param_data_t *set_params = ssrmod.surround_rec_get_set_param_data();
if (set_params != NULL) {
while (set_params->name != NULL && set_params->set_param_fn != NULL) {
err = str_parms_get_str(parms, set_params->name, value, sizeof(value));
if (err >= 0) {
ALOGV("Set %s to %s\n", set_params->name, value);
set_params->set_param_fn(ssrmod.surround_obj, value);
}
set_params++;
}
}
}
}
void ssr_get_parameters(const struct audio_device *adev __unused,
struct str_parms *parms,
struct str_parms *reply)
{
int err;
char value[4096] = {0};
if (ssrmod.ssr_3mic && ssrmod.surround_obj) {
const get_param_data_t *get_params = ssrmod.surround_rec_get_get_param_data();
int get_all = 0;
err = str_parms_get_str(parms, "ssr.all", value, sizeof(value));
if (err >= 0) {
get_all = 1;
}
if (get_params != NULL) {
while (get_params->name != NULL && get_params->get_param_fn != NULL) {
err = str_parms_get_str(parms, get_params->name, value, sizeof(value));
if (get_all || (err >= 0)) {
ALOGV("Getting parameter %s", get_params->name);
char *val = get_params->get_param_fn(ssrmod.surround_obj);
if (val != NULL) {
str_parms_add_str(reply, get_params->name, val);
free(val);
}
}
get_params++;
}
}
}
}
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