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/* Copyright (C) 2012 Doubango Telecom <http://www.doubango.org>
*
* 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.
*/
#include "audio_opensles_producer.h"
#include "audio_opensles.h"
#include "tinydav/audio/tdav_producer_audio.h"
#include "tsk_string.h"
#include "tsk_memory.h"
#include "tsk_debug.h"
typedef struct audio_producer_opensles_s {
TDAV_DECLARE_PRODUCER_AUDIO;
bool isMuted;
audio_opensles_instance_handle_t* audioInstHandle;
struct {
void* ptr;
int size;
int index;
} buffer;
}
audio_producer_opensles_t;
int audio_producer_opensles_handle_data_10ms(const audio_producer_opensles_t* _self, const void* audioSamples, int nSamples, int nBytesPerSample, int samplesPerSec, int nChannels)
{
if(!_self || !audioSamples || !nSamples) {
AUDIO_OPENSLES_DEBUG_ERROR("Invalid parameter");
return -1;
}
if(!TMEDIA_PRODUCER(_self)->enc_cb.callback) {
AUDIO_OPENSLES_DEBUG_WARN("No callback function is registered for the producer");
return 0;
}
if((nSamples != (samplesPerSec / 100))) {
AUDIO_OPENSLES_DEBUG_ERROR("Not producing 10ms samples (nSamples=%d, samplesPerSec=%d)", nSamples, samplesPerSec);
return -2;
}
if((nBytesPerSample != (TMEDIA_PRODUCER(_self)->audio.bits_per_sample >> 3))) {
AUDIO_OPENSLES_DEBUG_ERROR("%d not valid bytes/samples", nBytesPerSample);
return -3;
}
if((nChannels != TMEDIA_PRODUCER(_self)->audio.channels)) {
AUDIO_OPENSLES_DEBUG_ERROR("Recording - %d not the expected number of channels but should be %d", nChannels, TMEDIA_PRODUCER(_self)->audio.channels);
return -4;
}
int nSamplesInBits = (nSamples * nBytesPerSample);
if(_self->buffer.index + nSamplesInBits > _self->buffer.size) {
AUDIO_OPENSLES_DEBUG_ERROR("Buffer overflow");
return -5;
}
audio_producer_opensles_t* self = const_cast<audio_producer_opensles_t*>(_self);
if(self->isMuted) {
memset((((uint8_t*)self->buffer.ptr) + self->buffer.index), 0, nSamplesInBits);
}
else {
memcpy((((uint8_t*)self->buffer.ptr) + self->buffer.index), audioSamples, nSamplesInBits);
}
self->buffer.index += nSamplesInBits;
if(self->buffer.index == self->buffer.size) {
self->buffer.index = 0;
TMEDIA_PRODUCER(self)->enc_cb.callback(TMEDIA_PRODUCER(self)->enc_cb.callback_data, self->buffer.ptr, self->buffer.size);
}
return 0;
}
/* ============ Media Producer Interface ================= */
static int audio_producer_opensles_set(tmedia_producer_t* _self, const tmedia_param_t* param)
{
audio_producer_opensles_t* self = (audio_producer_opensles_t*)_self;
if(param->plugin_type == tmedia_ppt_producer) {
if(param->value_type == tmedia_pvt_int32) {
if(tsk_striequals(param->key, "mute")) {
self->isMuted = (*((int32_t*)param->value) != 0);
// Mute not supported on android -> send silence when needed
return 0;
}
else if(tsk_striequals(param->key, "volume")) {
return audio_opensles_instance_set_microphone_volume(self->audioInstHandle, *((int32_t*)param->value));
}
}
}
return tdav_producer_audio_set(TDAV_PRODUCER_AUDIO(self), param);
}
static int audio_producer_opensles_prepare(tmedia_producer_t* _self, const tmedia_codec_t* codec)
{
audio_producer_opensles_t* self = (audio_producer_opensles_t*)_self;
if(!self || !codec) {
AUDIO_OPENSLES_DEBUG_ERROR("Invalid parameter");
return -1;
}
// create audio instance
if(!(self->audioInstHandle = audio_opensles_instance_create(TMEDIA_PRODUCER(self)->session_id))) {
AUDIO_OPENSLES_DEBUG_ERROR("Failed to create audio instance handle");
return -2;
}
// check that ptime is mutiple of 10
if((codec->plugin->audio.ptime % 10)) {
AUDIO_OPENSLES_DEBUG_ERROR("ptime=%d not multiple of 10", codec->plugin->audio.ptime);
return -3;
}
// init input parameters from the codec
TMEDIA_PRODUCER(self)->audio.channels = TMEDIA_CODEC_CHANNELS_AUDIO_ENCODING(codec);
TMEDIA_PRODUCER(self)->audio.rate = TMEDIA_CODEC_RATE_ENCODING(codec);
TMEDIA_PRODUCER(self)->audio.ptime = TMEDIA_CODEC_PTIME_AUDIO_ENCODING(codec);
AUDIO_OPENSLES_DEBUG_INFO("audio_producer_opensles_prepare(channels=%d, rate=%d, ptime=%d)", codec->plugin->audio.channels, codec->plugin->rate, codec->plugin->audio.ptime);
// prepare playout device and update output parameters
int ret;
ret = audio_opensles_instance_prepare_producer(self->audioInstHandle, &_self);
// now that the producer is prepared we can initialize internal buffer using device caps
if(ret == 0) {
// allocate buffer
int xsize = ((TMEDIA_PRODUCER(self)->audio.ptime * TMEDIA_PRODUCER(self)->audio.rate) / 1000) * (TMEDIA_PRODUCER(self)->audio.bits_per_sample >> 3);
AUDIO_OPENSLES_DEBUG_INFO("producer buffer xsize = %d", xsize);
if(!(self->buffer.ptr = tsk_realloc(self->buffer.ptr, xsize))) {
AUDIO_OPENSLES_DEBUG_ERROR("Failed to allocate buffer with size = %d", xsize);
self->buffer.size = 0;
return -1;
}
self->buffer.size = xsize;
self->buffer.index = 0;
}
return ret;
}
static int audio_producer_opensles_start(tmedia_producer_t* _self)
{
audio_producer_opensles_t* self = (audio_producer_opensles_t*)_self;
if(!self) {
AUDIO_OPENSLES_DEBUG_ERROR("Invalid parameter");
return -1;
}
AUDIO_OPENSLES_DEBUG_INFO("audio_producer_opensles_start");
return audio_opensles_instance_start_producer(self->audioInstHandle);
}
static int audio_producer_opensles_pause(tmedia_producer_t* self)
{
return 0;
}
static int audio_producer_opensles_stop(tmedia_producer_t* _self)
{
audio_producer_opensles_t* self = (audio_producer_opensles_t*)_self;
if(!self) {
AUDIO_OPENSLES_DEBUG_ERROR("Invalid parameter");
return -1;
}
return audio_opensles_instance_stop_producer(self->audioInstHandle);
}
//
// SLES audio producer object definition
//
/* constructor */
static tsk_object_t* audio_producer_opensles_ctor(tsk_object_t *_self, va_list * app)
{
audio_producer_opensles_t *self = (audio_producer_opensles_t *)_self;
if(self) {
/* init base */
tdav_producer_audio_init(TDAV_PRODUCER_AUDIO(self));
/* init self */
}
return self;
}
/* destructor */
static tsk_object_t* audio_producer_opensles_dtor(tsk_object_t *_self)
{
audio_producer_opensles_t *self = (audio_producer_opensles_t *)_self;
if(self) {
/* stop */
audio_producer_opensles_stop(TMEDIA_PRODUCER(self));
/* deinit self */
if(self->audioInstHandle) {
audio_opensles_instance_destroy(&self->audioInstHandle);
}
TSK_FREE(self->buffer.ptr);
/* deinit base */
tdav_producer_audio_deinit(TDAV_PRODUCER_AUDIO(self));
}
return self;
}
/* object definition */
static const tsk_object_def_t audio_producer_opensles_def_s = {
sizeof(audio_producer_opensles_t),
audio_producer_opensles_ctor,
audio_producer_opensles_dtor,
tdav_producer_audio_cmp,
};
/* plugin definition*/
static const tmedia_producer_plugin_def_t audio_producer_opensles_plugin_def_s = {
&audio_producer_opensles_def_s,
tmedia_audio,
"SLES audio producer",
audio_producer_opensles_set,
audio_producer_opensles_prepare,
audio_producer_opensles_start,
audio_producer_opensles_pause,
audio_producer_opensles_stop
};
const tmedia_producer_plugin_def_t *audio_producer_opensles_plugin_def_t = &audio_producer_opensles_plugin_def_s;
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