| /* |
| * Copyright (c) 2013-2018, 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 <cutils/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 |
| |
| #ifdef SSR_ENABLED |
| #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 audio_extn_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 audio_extn_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 audio_extn_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 = in->device; |
| audio_source_t source = in->source; |
| |
| if ((audio_extn_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; |
| } |
| |
| int audio_extn_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 (audio_extn_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 (!audio_extn_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 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 *audio_extn_ssr_get_stream() |
| { |
| return ssrmod.in; |
| } |
| |
| int32_t audio_extn_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__); |
| audio_extn_ssr_deinit(); |
| } |
| |
| if (audio_extn_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) audio_extn_ssr_deinit(); |
| return ret; |
| } |
| |
| int32_t audio_extn_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; |
| } |
| |
| 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 audio_extn_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 audio_extn_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 audio_extn_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++; |
| } |
| } |
| } |
| } |
| |
| #endif /* SSR_ENABLED */ |