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Diffstat (limited to 'tinyDAV/src/audio/tdav_speex_denoise.c')
| -rw-r--r-- | tinyDAV/src/audio/tdav_speex_denoise.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/tinyDAV/src/audio/tdav_speex_denoise.c b/tinyDAV/src/audio/tdav_speex_denoise.c new file mode 100644 index 0000000..4f344dd --- /dev/null +++ b/tinyDAV/src/audio/tdav_speex_denoise.c @@ -0,0 +1,312 @@ +/* +* Copyright (C) 2010-2011 Mamadou Diop. +* +* This file is part of Open Source Doubango Framework. +* +* DOUBANGO is free software: you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation, either version 3 of the License, or +* (at your option) any later version. +* +* DOUBANGO is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with DOUBANGO. +* +*/ + +/**@file tdav_speex_denoise.c +* @brief Speex Denoiser (Noise suppression, AGC, AEC) Plugin +*/ +#include "tinydav/audio/tdav_speex_denoise.h" + +#if HAVE_SPEEX_DSP && (!defined(HAVE_SPEEX_DENOISE) || HAVE_SPEEX_DENOISE) + +#include "tsk_string.h" +#include "tsk_memory.h" +#include "tsk_debug.h" + +#include "tinymedia/tmedia_defaults.h" + +#include <string.h> + +#include <speex/speex_preprocess.h> +#include <speex/speex_echo.h> + +/** Speex denoiser*/ +typedef struct tdav_speex_denoise_s +{ + TMEDIA_DECLARE_DENOISE; + + SpeexPreprocessState *preprocess_state_record; + SpeexPreprocessState *preprocess_state_playback; + SpeexEchoState *echo_state; + + spx_int16_t* echo_output_frame; + uint32_t record_frame_size_samples, record_frame_size_bytes; + uint32_t playback_frame_size_samples, playback_frame_size_bytes; +} +tdav_speex_denoise_t; + +static int tdav_speex_denoise_set(tmedia_denoise_t* _self, const tmedia_param_t* param) +{ + tdav_speex_denoise_t *self = (tdav_speex_denoise_t *)_self; + if(!self || !param){ + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + + if(param->value_type == tmedia_pvt_int32){ + if(tsk_striequals(param->key, "echo-tail")){ + int32_t echo_tail = *((int32_t*)param->value); + TSK_DEBUG_INFO("speex_set_echo_tail(%d) ignore", echo_tail); // because Speex AEC just do not work (use WebRTC) + return 0; + } + } + return -1; +} + +static int tdav_speex_denoise_open(tmedia_denoise_t* self, uint32_t record_frame_size_samples, uint32_t record_sampling_rate, uint32_t record_channels, uint32_t playback_frame_size_samples, uint32_t playback_sampling_rate, uint32_t playback_channels) +{ + tdav_speex_denoise_t *denoiser = (tdav_speex_denoise_t *)self; + float f; + int i; + + if (!denoiser->echo_state && TMEDIA_DENOISE(denoiser)->echo_supp_enabled) { + TSK_DEBUG_INFO("Init Aec frame_size[%u] filter_length[%u] SampleRate[%u]", + (uint32_t)(record_frame_size_samples),TMEDIA_DENOISE(denoiser)->echo_tail*record_frame_size_samples, record_sampling_rate); + if((denoiser->echo_state = speex_echo_state_init(record_frame_size_samples, TMEDIA_DENOISE(denoiser)->echo_tail))){ + speex_echo_ctl(denoiser->echo_state, SPEEX_ECHO_SET_SAMPLING_RATE, &record_sampling_rate); + } + } + + if (!denoiser->preprocess_state_record && !denoiser->preprocess_state_playback) { + denoiser->record_frame_size_samples = record_frame_size_samples; + denoiser->record_frame_size_bytes = (record_frame_size_samples << 1); + denoiser->playback_frame_size_samples = playback_frame_size_samples; + denoiser->playback_frame_size_bytes = (playback_frame_size_samples << 1); + + if((denoiser->preprocess_state_record = speex_preprocess_state_init(record_frame_size_samples, record_sampling_rate)) + && (denoiser->preprocess_state_playback = speex_preprocess_state_init(playback_frame_size_samples, playback_sampling_rate)) + ){ + + // Echo suppression + if(denoiser->echo_state){ + int echo_supp , echo_supp_active = 0; + + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_ECHO_STATE, denoiser->echo_state); + + TSK_FREE(denoiser->echo_output_frame); + denoiser->echo_output_frame = tsk_calloc(denoiser->record_frame_size_samples, sizeof(spx_int16_t)); + + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_GET_ECHO_SUPPRESS , &echo_supp ); + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_GET_ECHO_SUPPRESS_ACTIVE , &echo_supp_active ); + TSK_DEBUG_INFO("AEC echo_supp level [%d] echo_supp_active level[%d] ", echo_supp , echo_supp_active); + echo_supp = -60 ; + echo_supp_active = -60 ; + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_ECHO_SUPPRESS , &echo_supp ); + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_ECHO_SUPPRESS_ACTIVE , &echo_supp_active ); + // TRACES + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_GET_ECHO_SUPPRESS , &echo_supp ); + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_GET_ECHO_SUPPRESS_ACTIVE , &echo_supp_active ); + TSK_DEBUG_INFO("New aec echo_supp level [%d] echo_supp_active level[%d] ", echo_supp , echo_supp_active); + } + + // Noise suppression + if(TMEDIA_DENOISE(denoiser)->noise_supp_enabled){ + TSK_DEBUG_INFO("SpeexDSP: Noise supp enabled"); + i = 1; + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_DENOISE, &i); + speex_preprocess_ctl(denoiser->preprocess_state_playback, SPEEX_PREPROCESS_SET_DENOISE, &i); + i = TMEDIA_DENOISE(denoiser)->noise_supp_level; + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_NOISE_SUPPRESS, &i); + speex_preprocess_ctl(denoiser->preprocess_state_playback, SPEEX_PREPROCESS_SET_NOISE_SUPPRESS, &i); + } + else{ + i = 0; + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_DENOISE, &i); + speex_preprocess_ctl(denoiser->preprocess_state_playback, SPEEX_PREPROCESS_SET_DENOISE, &i); + } + + // Automatic gain control + if(TMEDIA_DENOISE(denoiser)->agc_enabled){ + float agc_level = TMEDIA_DENOISE(denoiser)->agc_level; + TSK_DEBUG_INFO("SpeexDSP: AGC enabled"); + + i = 1; + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_AGC, &i); + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_AGC_LEVEL, &agc_level); + } + else{ + i = 0, f = 8000.0f; + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_AGC, &i); + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_AGC_LEVEL, &f); + } + + // Voice Activity detection + i = TMEDIA_DENOISE(denoiser)->vad_enabled ? 1 : 0; + speex_preprocess_ctl(denoiser->preprocess_state_record, SPEEX_PREPROCESS_SET_VAD, &i); + + return 0; + } + else{ + TSK_DEBUG_ERROR("Failed to create Speex preprocessor state"); + return -2; + } + } + + return 0; +} + +static int tdav_speex_denoise_echo_playback(tmedia_denoise_t* self, const void* echo_frame, uint32_t echo_frame_size_bytes) +{ + tdav_speex_denoise_t *denoiser = (tdav_speex_denoise_t *)self; + + if(denoiser->record_frame_size_bytes != echo_frame_size_bytes){ + TSK_DEBUG_ERROR("Size mismatch: %u<>%u", denoiser->record_frame_size_bytes, echo_frame_size_bytes); + return -1; + } + + if(denoiser->echo_state){ + speex_echo_playback(denoiser->echo_state, echo_frame); + } + return 0; +} + + + +static int tdav_speex_denoise_process_record(tmedia_denoise_t* self, void* audio_frame, uint32_t audio_frame_size_bytes, tsk_bool_t* silence_or_noise) +{ + tdav_speex_denoise_t *denoiser = (tdav_speex_denoise_t *)self; + int vad; + + if(denoiser->record_frame_size_bytes != audio_frame_size_bytes){ + TSK_DEBUG_ERROR("Size mismatch: %u<>%u", denoiser->record_frame_size_bytes, audio_frame_size_bytes); + return -1; + } + + if(denoiser->preprocess_state_record){ + if(denoiser->echo_state && denoiser->echo_output_frame){ + speex_echo_capture(denoiser->echo_state, audio_frame, denoiser->echo_output_frame); + memcpy(audio_frame, denoiser->echo_output_frame, denoiser->record_frame_size_bytes); + } + vad = speex_preprocess_run(denoiser->preprocess_state_record, audio_frame); + if(!vad && TMEDIA_DENOISE(denoiser)->vad_enabled){ + *silence_or_noise = tsk_true; + } + } + + return 0; +} + +static int tdav_speex_denoise_process_playback(tmedia_denoise_t* self, void* audio_frame, uint32_t audio_frame_size_bytes) +{ + tdav_speex_denoise_t *denoiser = (tdav_speex_denoise_t *)self; + + if(denoiser->playback_frame_size_bytes != audio_frame_size_bytes){ + TSK_DEBUG_ERROR("Size mismatch: %u<>%u", denoiser->playback_frame_size_bytes, audio_frame_size_bytes); + return -1; + } + + if(denoiser->preprocess_state_playback){ + speex_preprocess_run(denoiser->preprocess_state_playback, audio_frame); + } + return 0; +} + +static int tdav_speex_denoise_close(tmedia_denoise_t* self) +{ + tdav_speex_denoise_t *denoiser = (tdav_speex_denoise_t *)self; + + if(denoiser->preprocess_state_record){ + speex_preprocess_state_destroy(denoiser->preprocess_state_record); + denoiser->preprocess_state_record = tsk_null; + } + if(denoiser->preprocess_state_playback){ + speex_preprocess_state_destroy(denoiser->preprocess_state_playback); + denoiser->preprocess_state_playback = tsk_null; + } + if(denoiser->echo_state){ + speex_echo_state_destroy(denoiser->echo_state); + denoiser->echo_state = tsk_null; + } + TSK_FREE(denoiser->echo_output_frame); + + return 0; +} + + + +// +// Speex denoiser Plugin definition +// + +/* constructor */ +static tsk_object_t* tdav_speex_denoise_ctor(tsk_object_t * self, va_list * app) +{ + tdav_speex_denoise_t *denoise = self; + if(denoise){ + /* init base */ + tmedia_denoise_init(TMEDIA_DENOISE(denoise)); + /* init self */ + + TSK_DEBUG_INFO("Create SpeexDSP denoiser"); + } + return self; +} +/* destructor */ +static tsk_object_t* tdav_speex_denoise_dtor(tsk_object_t * self) +{ + tdav_speex_denoise_t *denoise = self; + if(denoise){ + /* deinit base */ + tmedia_denoise_deinit(TMEDIA_DENOISE(denoise)); + /* deinit self */ + if(denoise->preprocess_state_record){ + speex_preprocess_state_destroy(denoise->preprocess_state_record); + denoise->preprocess_state_record = tsk_null; + } + if(denoise->preprocess_state_playback){ + speex_preprocess_state_destroy(denoise->preprocess_state_playback); + denoise->preprocess_state_playback = tsk_null; + } + if(denoise->echo_state){ + speex_echo_state_destroy(denoise->echo_state); + denoise->echo_state = tsk_null; + } + TSK_FREE(denoise->echo_output_frame); + + TSK_DEBUG_INFO("*** SpeexDSP denoiser destroyed ***"); + } + + return self; +} +/* object definition */ +static const tsk_object_def_t tdav_speex_denoise_def_s = +{ + sizeof(tdav_speex_denoise_t), + tdav_speex_denoise_ctor, + tdav_speex_denoise_dtor, + tsk_null, +}; +/* plugin definition*/ +static const tmedia_denoise_plugin_def_t tdav_speex_denoise_plugin_def_s = +{ + &tdav_speex_denoise_def_s, + + "Audio Denoiser based on SpeexDSP", + + tdav_speex_denoise_set, + tdav_speex_denoise_open, + tdav_speex_denoise_echo_playback, + tdav_speex_denoise_process_record, + tdav_speex_denoise_process_playback, + tdav_speex_denoise_close, +}; +const tmedia_denoise_plugin_def_t *tdav_speex_denoise_plugin_def_t = &tdav_speex_denoise_plugin_def_s; + + +#endif /* HAVE_SPEEX_DSP */
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