long opus_create(const char* format_parameters, const char** format_parameters_out,
amci_codec_fmt_info_t** format_description) {
opus_state_t* codec_inst;
int error;
unsigned int maxbandwidth = _OPUS_RATE;
int useinbandfec = _OPUS_INBAND_FEC_;
int stereo = 0;
if (format_parameters) {
DBG("OPUS params: >>%s<<.\n", format_parameters);
decode_format_parameters(format_parameters, &maxbandwidth, &useinbandfec, &stereo);
}
codec_inst = (opus_state_t*)malloc(sizeof(opus_state_t));
if (!codec_inst)
return -1;
DBG("OPUS: creating encoder with maxbandwidth=%u, stereo=%s, useinbandfec=%s\n",
maxbandwidth, stereo?"true":"false", useinbandfec?"true":"false");
codec_inst->opus_enc = opus_encoder_create(_OPUS_RATE,1,_OPUS_APPLICATION_,&error);
if (error) {
DBG("OPUS: error %d while creating encoder state.\n", error);
return -1;
}
opus_encoder_ctl(codec_inst->opus_enc, OPUS_SET_FORCE_CHANNELS(stereo ? 2:1));
unsigned int opus_set_bw = _OPUS_RATE;
if (maxbandwidth <= 8000) {
opus_set_bw = OPUS_BANDWIDTH_NARROWBAND;
} else if (maxbandwidth <= 12000) {
opus_set_bw = OPUS_BANDWIDTH_MEDIUMBAND;
} else if (maxbandwidth <= 16000) {
opus_set_bw = OPUS_BANDWIDTH_WIDEBAND;
} else if (maxbandwidth <= 24000) {
opus_set_bw = OPUS_BANDWIDTH_SUPERWIDEBAND;
} else {
opus_set_bw = OPUS_BANDWIDTH_FULLBAND;
}
opus_encoder_ctl(codec_inst->opus_enc, OPUS_SET_MAX_BANDWIDTH(opus_set_bw));
opus_encoder_ctl(codec_inst->opus_enc, OPUS_SET_PACKET_LOSS_PERC(_OPUS_PKT_LOSS_PCT_));
opus_encoder_ctl(codec_inst->opus_enc, OPUS_SET_COMPLEXITY(_OPUS_COMPLEXITY_));
opus_encoder_ctl(codec_inst->opus_enc, OPUS_SET_INBAND_FEC(useinbandfec ? 1:0));
opus_encoder_ctl(codec_inst->opus_enc, OPUS_SET_DTX(_OPUS_DTX_));
codec_inst->opus_dec = opus_decoder_create(_OPUS_RATE,1,&error);
if (error) {
DBG("OPUS: error %d while creating decoder state.\n", error);
opus_encoder_destroy(codec_inst->opus_enc);
return -1;
}
*format_description = opus_fmt_description;
return (long)codec_inst;
}
JNIEXPORT jint JNICALL
Java_org_jitsi_impl_neomedia_codec_audio_opus_Opus_encoder_1set_1force_1channels
(JNIEnv *env, jclass clazz, jlong encoder, jint forcechannels)
{
opus_int32 x = forcechannels;
return
opus_encoder_ctl(
(OpusEncoder *) (intptr_t) encoder,
OPUS_SET_FORCE_CHANNELS(x));
}
static void ms_opus_enc_preprocess(MSFilter *f) {
int error;
OpusEncData *d = (OpusEncData *)f->data;
/* create the encoder */
d->state = opus_encoder_create(d->samplerate, d->channels, d->application, &error);
if (error != OPUS_OK) {
ms_error("Opus encoder creation failed: %s", opus_strerror(error));
return;
}
/* set complexity to 0 for single processor arm devices */
#if defined(__arm__) || defined(_M_ARM)
if (ms_factory_get_cpu_count(f->factory)==1){
opus_encoder_ctl(d->state, OPUS_SET_COMPLEXITY(0));
}else{
opus_encoder_ctl(d->state, OPUS_SET_COMPLEXITY(5));
}
#endif
error = opus_encoder_ctl(d->state, OPUS_SET_PACKET_LOSS_PERC(10));
if (error != OPUS_OK) {
ms_error("Could not set default loss percentage to opus encoder: %s", opus_strerror(error));
}
/* set the encoder parameters: VBR, IN_BAND_FEC, DTX and bitrate settings */
ms_opus_enc_set_vbr(f);
ms_opus_enc_set_inbandfec(f);
ms_opus_enc_set_dtx(f);
/* if decoder prefers mono signal, force encoder to output mono signal */
if (d->stereo == 0) {
error = opus_encoder_ctl(d->state, OPUS_SET_FORCE_CHANNELS(1));
if (error != OPUS_OK) {
ms_error("could not force mono channel to opus encoder: %s", opus_strerror(error));
}
if (d->channels == 2) ms_message("Opus encoder configured to encode mono despite it is feed with stereo.");
}else if (d->channels == 2){
ms_message("Opus encoder configured to encode stereo.");
}
ms_filter_lock(f);
// set bitrate wasn't call, compute it with the default network bitrate (36000)
if (d->bitrate==-1) {
compute_max_bitrate(d, 0);
}
apply_max_bitrate(d);
ms_filter_unlock(f);
}
opus_encoder::opus_encoder()
{
int err;
_opus = opus_encoder_create(SAMPLE_RATE,CHANNELS, OPUS_APPLICATION_VOIP, &err);
if(err != OPUS_OK)
{
LOG << "opus encoder create error: ";
log_opus_error(err);
}
opus_encoder_ctl(_opus, OPUS_SET_BITRATE(OPUS_AUTO));
opus_encoder_ctl(_opus, OPUS_SET_VBR(1));
opus_encoder_ctl(_opus, OPUS_SET_FORCE_CHANNELS(1)); //force mono
opus_encoder_ctl(_opus, OPUS_SET_PACKET_LOSS_PERC(2));
ENSURE(_opus);
}
static void ms_opus_enc_preprocess(MSFilter *f) {
int error;
OpusEncData *d = (OpusEncData *)f->data;
/* create the encoder */
d->state = opus_encoder_create(d->samplerate, d->channels, d->application, &error);
if (error != OPUS_OK) {
ms_error("Opus encoder creation failed: %s", opus_strerror(error));
return;
}
/* set complexity to 0 for arm devices */
#ifdef __arm__
opus_encoder_ctl(d->state, OPUS_SET_COMPLEXITY(0));
#endif
error = opus_encoder_ctl(d->state, OPUS_SET_PACKET_LOSS_PERC(10));
if (error != OPUS_OK) {
ms_error("Could not set default loss percentage to opus encoder: %s", opus_strerror(error));
}
/* set the encoder parameters: VBR, IN_BAND_FEC, DTX and bitrate settings */
ms_opus_enc_set_vbr(f);
ms_opus_enc_set_inbandfec(f);
ms_opus_enc_set_dtx(f);
/* if decoder prefers mono signal, force encoder to output mono signal */
if (d->stereo == 0) {
error = opus_encoder_ctl(d->state, OPUS_SET_FORCE_CHANNELS(1));
if (error != OPUS_OK) {
ms_error("could not force mono channel to opus encoder: %s", opus_strerror(error));
}
}
ms_filter_lock(f);
if (d->ptime==-1) { // set ptime wasn't call, set default:20ms
d->ptime = 20;
}
if (d->bitrate==-1) { // set bitrate wasn't call, compute it with the default network bitrate (36000)
compute_max_bitrate(d, 0);
}
apply_max_bitrate(d);
ms_filter_unlock(f);
}
static void ms_opus_enc_preprocess(MSFilter *f) {
int error;
int opusComplexity = -1;
const char *env = NULL;
OpusEncData *d = (OpusEncData *)f->data;
/* create the encoder */
d->state = opus_encoder_create(d->samplerate, d->channels, d->application, &error);
if (error != OPUS_OK) {
ms_error("Opus encoder creation failed: %s", opus_strerror(error));
return;
}
#ifndef MS2_WINDOWS_UNIVERSAL
env = getenv("MS2_OPUS_COMPLEXITY");
#endif
if (env != NULL) {
opusComplexity = atoi(env);
if (opusComplexity < -1)
opusComplexity = -1; /*our default value*/
if (opusComplexity > 10)
opusComplexity = 10;
}
if (opusComplexity == -1){
#if defined(__arm__) || defined(_M_ARM)
int cpucount = ms_factory_get_cpu_count(f->factory);
if (cpucount == 1){
opusComplexity = 0; /* set complexity to 0 for single processor arm devices */
}else if (cpucount == 2) {
opusComplexity = 5;
}
#endif
}
if (opusComplexity != -1){
ms_message("Set Opus complexity to %d", opusComplexity);
opus_encoder_ctl(d->state, OPUS_SET_COMPLEXITY(opusComplexity));
} /*otherwise we let opus with its default value, which is 9*/
error = opus_encoder_ctl(d->state, OPUS_SET_PACKET_LOSS_PERC(10));
if (error != OPUS_OK) {
ms_error("Could not set default loss percentage to opus encoder: %s", opus_strerror(error));
}
/* set the encoder parameters: VBR, IN_BAND_FEC, DTX and bitrate settings */
ms_opus_enc_set_vbr(f);
ms_opus_enc_set_inbandfec(f);
ms_opus_enc_set_dtx(f);
/* if decoder prefers mono signal, force encoder to output mono signal */
if (d->stereo == 0) {
error = opus_encoder_ctl(d->state, OPUS_SET_FORCE_CHANNELS(1));
if (error != OPUS_OK) {
ms_error("could not force mono channel to opus encoder: %s", opus_strerror(error));
}
if (d->channels == 2) ms_message("Opus encoder configured to encode mono despite it is feed with stereo.");
}else if (d->channels == 2){
ms_message("Opus encoder configured to encode stereo.");
}
ms_filter_lock(f);
// set bitrate wasn't call, compute it with the default network bitrate (36000)
if (d->bitrate==-1) {
compute_max_bitrate(d, 0);
}
apply_max_bitrate(d);
ms_filter_unlock(f);
}
int opus_encode_update(struct auenc_state **aesp, const struct aucodec *ac,
struct auenc_param *param, const char *fmtp)
{
struct auenc_state *aes;
struct opus_param prm, conf_prm;
opus_int32 fch, vbr;
const struct aucodec *auc = ac;
(void)param;
if (!aesp || !ac || !ac->ch)
return EINVAL;
debug("opus: encoder fmtp (%s)\n", fmtp);
/* Save the incoming OPUS parameters from SDP offer */
if (str_isset(fmtp)) {
opus_mirror_params(fmtp);
}
aes = *aesp;
if (!aes) {
const opus_int32 complex = 10;
int opuserr;
aes = mem_zalloc(sizeof(*aes), destructor);
if (!aes)
return ENOMEM;
aes->ch = ac->ch;
aes->enc = opus_encoder_create(ac->srate, ac->ch,
/* this has big impact on cpu */
OPUS_APPLICATION_AUDIO,
&opuserr);
if (!aes->enc) {
warning("opus: encoder create: %s\n",
opus_strerror(opuserr));
mem_deref(aes);
return ENOMEM;
}
(void)opus_encoder_ctl(aes->enc, OPUS_SET_COMPLEXITY(complex));
*aesp = aes;
}
prm.srate = 48000;
prm.bitrate = OPUS_AUTO;
prm.stereo = 1;
prm.cbr = 0;
prm.inband_fec = 0;
prm.dtx = 0;
opus_decode_fmtp(&prm, fmtp);
conf_prm.bitrate = OPUS_AUTO;
opus_decode_fmtp(&conf_prm, auc->fmtp);
if ((prm.bitrate == OPUS_AUTO) ||
((conf_prm.bitrate != OPUS_AUTO) &&
(conf_prm.bitrate < prm.bitrate)))
prm.bitrate = conf_prm.bitrate;
fch = prm.stereo ? OPUS_AUTO : 1;
vbr = prm.cbr ? 0 : 1;
(void)opus_encoder_ctl(aes->enc,
OPUS_SET_MAX_BANDWIDTH(srate2bw(prm.srate)));
(void)opus_encoder_ctl(aes->enc, OPUS_SET_BITRATE(prm.bitrate));
(void)opus_encoder_ctl(aes->enc, OPUS_SET_FORCE_CHANNELS(fch));
(void)opus_encoder_ctl(aes->enc, OPUS_SET_VBR(vbr));
(void)opus_encoder_ctl(aes->enc, OPUS_SET_INBAND_FEC(prm.inband_fec));
(void)opus_encoder_ctl(aes->enc, OPUS_SET_DTX(prm.dtx));
#if 0
{
opus_int32 bw, complex;
(void)opus_encoder_ctl(aes->enc, OPUS_GET_MAX_BANDWIDTH(&bw));
(void)opus_encoder_ctl(aes->enc, OPUS_GET_BITRATE(&prm.bitrate));
(void)opus_encoder_ctl(aes->enc, OPUS_GET_FORCE_CHANNELS(&fch));
(void)opus_encoder_ctl(aes->enc, OPUS_GET_VBR(&vbr));
(void)opus_encoder_ctl(aes->enc, OPUS_GET_INBAND_FEC(&prm.inband_fec));
(void)opus_encoder_ctl(aes->enc, OPUS_GET_DTX(&prm.dtx));
(void)opus_encoder_ctl(aes->enc, OPUS_GET_COMPLEXITY(&complex));
debug("opus: encode bw=%s bitrate=%i fch=%s "
"vbr=%i fec=%i dtx=%i complex=%i\n",
bwname(bw), prm.bitrate, chname(fch),
vbr, prm.inband_fec, prm.dtx, complex);
}
#endif
return 0;
}
