static int alloc(struct aucodec_st **stp, struct aucodec *ac,
struct aucodec_prm *encp, struct aucodec_prm *decp,
const char *fmtp)
{
struct aucodec_st *st;
const uint32_t srate = aucodec_srate(ac);
const uint8_t ch = aucodec_ch(ac);
uint32_t ptime = DEFAULT_PTIME;
int use_inbandfec;
int use_dtx;
int err = 0;
int opuserr;
(void)decp;
(void)fmtp;
st = mem_zalloc(sizeof(*st), destructor);
if (!st)
return ENOMEM;
if (encp && encp->ptime)
ptime = encp->ptime;
st->ac = mem_ref(ac);
st->frame_size = srate * ptime / 1000;
st->fsize = 2 * st->frame_size * ch;
/* Encoder */
st->enc = opus_encoder_create(srate, ch, opus.app, &opuserr);
if (!st->enc) {
err = ENOMEM;
goto out;
}
use_inbandfec = 1;
use_dtx = 1;
opus_encoder_ctl(st->enc, OPUS_SET_BITRATE(opus.bitrate));
opus_encoder_ctl(st->enc, OPUS_SET_BANDWIDTH(opus.bandwidth));
opus_encoder_ctl(st->enc, OPUS_SET_VBR(opus.vbr));
opus_encoder_ctl(st->enc, OPUS_SET_COMPLEXITY(opus.complex));
opus_encoder_ctl(st->enc, OPUS_SET_INBAND_FEC(use_inbandfec));
opus_encoder_ctl(st->enc, OPUS_SET_DTX(use_dtx));
/* Decoder */
st->dec = opus_decoder_create(srate, ch, &opuserr);
if (!st->dec) {
err = ENOMEM;
goto out;
}
out:
if (err)
mem_deref(st);
else
*stp = st;
return err;
}
JNIEXPORT jint JNICALL
Java_org_jitsi_impl_neomedia_codec_audio_opus_Opus_encoder_1set_1bandwidth
(JNIEnv *env, jclass clazz, jlong encoder, jint bandwidth)
{
opus_int32 x = bandwidth;
return
opus_encoder_ctl(
(OpusEncoder *) (intptr_t) encoder,
OPUS_SET_BANDWIDTH(x));
}
static gboolean
gst_opus_enc_setup (GstOpusEnc * enc)
{
int error = OPUS_OK;
#ifndef GST_DISABLE_DEBUG
GST_DEBUG_OBJECT (enc,
"setup: %d Hz, %d channels, %d stereo streams, family %d",
enc->sample_rate, enc->n_channels, enc->n_stereo_streams,
enc->channel_mapping_family);
GST_INFO_OBJECT (enc, "Mapping tables built: %d channels, %d stereo streams",
enc->n_channels, enc->n_stereo_streams);
gst_opus_common_log_channel_mapping_table (GST_ELEMENT (enc), opusenc_debug,
"Encoding mapping table", enc->n_channels, enc->encoding_channel_mapping);
gst_opus_common_log_channel_mapping_table (GST_ELEMENT (enc), opusenc_debug,
"Decoding mapping table", enc->n_channels, enc->decoding_channel_mapping);
#endif
enc->state = opus_multistream_encoder_create (enc->sample_rate,
enc->n_channels, enc->n_channels - enc->n_stereo_streams,
enc->n_stereo_streams, enc->encoding_channel_mapping,
enc->audio_or_voip ? OPUS_APPLICATION_AUDIO : OPUS_APPLICATION_VOIP,
&error);
if (!enc->state || error != OPUS_OK)
goto encoder_creation_failed;
opus_multistream_encoder_ctl (enc->state, OPUS_SET_BITRATE (enc->bitrate), 0);
opus_multistream_encoder_ctl (enc->state, OPUS_SET_BANDWIDTH (enc->bandwidth),
0);
opus_multistream_encoder_ctl (enc->state, OPUS_SET_VBR (!enc->cbr), 0);
opus_multistream_encoder_ctl (enc->state,
OPUS_SET_VBR_CONSTRAINT (enc->constrained_vbr), 0);
opus_multistream_encoder_ctl (enc->state,
OPUS_SET_COMPLEXITY (enc->complexity), 0);
opus_multistream_encoder_ctl (enc->state,
OPUS_SET_INBAND_FEC (enc->inband_fec), 0);
opus_multistream_encoder_ctl (enc->state, OPUS_SET_DTX (enc->dtx), 0);
opus_multistream_encoder_ctl (enc->state,
OPUS_SET_PACKET_LOSS_PERC (enc->packet_loss_percentage), 0);
GST_LOG_OBJECT (enc, "we have frame size %d", enc->frame_size);
return TRUE;
encoder_creation_failed:
GST_ERROR_OBJECT (enc, "Encoder creation failed");
return FALSE;
}
static void audio_encoder_init(uint32_t samplerate, int complexity,
uint32_t bitrate)
{
assert(opus_enc == NULL);
int err = 0;
/* 1 channel (mono), OPUS audio profile */
opus_enc = opus_encoder_create(samplerate, 1, OPUS_APPLICATION_AUDIO, &err);
if (!opus_enc) {
fprintf(stderr, "ERROR: opus_encoder_create() has failed - %d\n", err);
exit(EXIT_FAILURE);
}
opus_encoder_ctl(opus_enc, OPUS_SET_COMPLEXITY(complexity));
opus_encoder_ctl(opus_enc, OPUS_SET_BITRATE(bitrate));
opus_encoder_ctl(opus_enc, OPUS_SET_SIGNAL(OPUS_SIGNAL_MUSIC));
opus_encoder_ctl(opus_enc, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_FULLBAND));
}
static switch_status_t switch_opus_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings)
{
struct opus_context *context = NULL;
int encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
int decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
switch_codec_fmtp_t codec_fmtp;
opus_codec_settings_t opus_codec_settings = { 0 };
if (!(encoding || decoding) || (!(context = switch_core_alloc(codec->memory_pool, sizeof(*context))))) {
return SWITCH_STATUS_FALSE;
}
context->enc_frame_size = codec->implementation->actual_samples_per_second * (codec->implementation->microseconds_per_packet / 1000) / 1000;
memset(&codec_fmtp, '\0', sizeof(struct switch_codec_fmtp));
codec_fmtp.private_info = &opus_codec_settings;
switch_opus_fmtp_parse(codec->fmtp_in, &codec_fmtp);
/* Verify if the local or remote configuration are lowering maxaveragebitrate and/or maxplaybackrate */
if ( opus_prefs.maxaveragebitrate && (opus_prefs.maxaveragebitrate < opus_codec_settings.maxaveragebitrate || !opus_codec_settings.maxaveragebitrate) ) {
opus_codec_settings.maxaveragebitrate = opus_prefs.maxaveragebitrate;
}
if ( opus_prefs.maxplaybackrate && (opus_prefs.maxplaybackrate < opus_codec_settings.maxplaybackrate || !opus_codec_settings.maxplaybackrate) ) {
opus_codec_settings.maxplaybackrate = opus_prefs.maxplaybackrate;
}
codec->fmtp_out = gen_fmtp(&opus_codec_settings, codec->memory_pool);
if (encoding) {
/* come up with a way to specify these */
int bitrate_bps = OPUS_AUTO;
int use_vbr = opus_prefs.use_vbr;
int complexity = opus_prefs.complexity;
int err;
int samplerate = opus_codec_settings.samplerate ? opus_codec_settings.samplerate : codec->implementation->actual_samples_per_second;
context->encoder_object = opus_encoder_create(samplerate,
codec->implementation->number_of_channels,
codec->implementation->number_of_channels == 1 ? OPUS_APPLICATION_VOIP : OPUS_APPLICATION_AUDIO, &err);
if (err != OPUS_OK) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot create encoder: %s\n", opus_strerror(err));
return SWITCH_STATUS_GENERR;
}
/* Setting documented in "RTP Payload Format for Opus Speech and Audio Codec" draft-spittka-payload-rtp-opus-03 */
if( opus_codec_settings.maxaveragebitrate ) { /* Remote codec settings found in SDP "fmtp", we accept to tune the Encoder */
opus_encoder_ctl(context->encoder_object, OPUS_SET_BITRATE(opus_codec_settings.maxaveragebitrate));
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Opus encoder set bitrate based on maxaveragebitrate found in SDP [%dbps]\n", opus_codec_settings.maxaveragebitrate);
} else {
/* Default codec settings used, may have been modified by SDP "samplerate" */
opus_encoder_ctl(context->encoder_object, OPUS_SET_BITRATE(bitrate_bps));
if (codec->implementation->actual_samples_per_second == 8000) {
opus_encoder_ctl(context->encoder_object, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_NARROWBAND));
opus_encoder_ctl(context->encoder_object, OPUS_SET_MAX_BANDWIDTH(OPUS_BANDWIDTH_NARROWBAND));
} else {
opus_encoder_ctl(context->encoder_object, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_FULLBAND));
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Opus encoder set bitrate to local settings [%dbps]\n", bitrate_bps);
}
/* Another setting from "RTP Payload Format for Opus Speech and Audio Codec" */
if ( opus_codec_settings.maxplaybackrate ) {
if (opus_codec_settings.maxplaybackrate == 8000) { /* Audio Bandwidth: 0-4000Hz Sampling Rate: 8000Hz */
opus_encoder_ctl(context->encoder_object, OPUS_SET_MAX_BANDWIDTH(OPUS_BANDWIDTH_NARROWBAND));
} else if (opus_codec_settings.maxplaybackrate == 12000) { /* Audio Bandwidth: 0-6000Hz Sampling Rate: 12000Hz */
opus_encoder_ctl(context->encoder_object, OPUS_SET_MAX_BANDWIDTH(OPUS_BANDWIDTH_MEDIUMBAND));
} else if (opus_codec_settings.maxplaybackrate == 16000) { /* Audio Bandwidth: 0-8000Hz Sampling Rate: 16000Hz */
opus_encoder_ctl(context->encoder_object, OPUS_SET_MAX_BANDWIDTH(OPUS_BANDWIDTH_WIDEBAND));
} else if (opus_codec_settings.maxplaybackrate == 24000) { /* Audio Bandwidth: 0-12000Hz Sampling Rate: 24000Hz */
opus_encoder_ctl(context->encoder_object, OPUS_SET_MAX_BANDWIDTH(OPUS_BANDWIDTH_SUPERWIDEBAND));
} else if (opus_codec_settings.maxplaybackrate == 48000) { /* Audio Bandwidth: 0-20000Hz Sampling Rate: 48000Hz */
opus_encoder_ctl(context->encoder_object, OPUS_SET_MAX_BANDWIDTH(OPUS_BANDWIDTH_FULLBAND));
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Opus encoder set bandwidth based on maxplaybackrate found in SDP [%dHz]\n", opus_codec_settings.maxplaybackrate);
}
if (use_vbr) {
opus_encoder_ctl(context->encoder_object, OPUS_SET_VBR(use_vbr));
}
if (complexity) {
opus_encoder_ctl(context->encoder_object, OPUS_SET_COMPLEXITY(complexity));
}
if (opus_codec_settings.useinbandfec) {
opus_encoder_ctl(context->encoder_object, OPUS_SET_INBAND_FEC(opus_codec_settings.useinbandfec));
}
if (opus_codec_settings.usedtx) {
opus_encoder_ctl(context->encoder_object, OPUS_SET_DTX(opus_codec_settings.usedtx));
}
}
if (decoding) {
int err;
context->decoder_object = opus_decoder_create(codec->implementation->actual_samples_per_second,
codec->implementation->number_of_channels, &err);
if (err != OPUS_OK) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot create decoder: %s\n", opus_strerror(err));
if (context->encoder_object) {
opus_encoder_destroy(context->encoder_object);
context->encoder_object = NULL;
}
return SWITCH_STATUS_GENERR;
}
}
codec->private_info = context;
return SWITCH_STATUS_SUCCESS;
}
int main(int argc, char *argv[])
{
int err;
char *inFile, *outFile;
FILE *fin, *fout;
OpusEncoder *enc;
int len;
int frame_size, channels;
int bytes_per_packet;
unsigned char data[MAX_PACKET];
int rate;
int count = 0;
int stop=0;
int vbr=0;
int tot_read=0, tot_written=0;
short *in, *out;
int mode=MODE_HYBRID;
double bits=0;
if (argc != 9 && argc != 8 && argc != 7)
{
fprintf (stderr, "Usage: test_opus <rate (kHz)> <channels> <frame size> "
" <bytes per packet> [<VBR rate (kb/s)>] [<packet loss rate>] "
"<input> <output>\n");
return 1;
}
rate = atoi(argv[1]);
channels = atoi(argv[2]);
frame_size = atoi(argv[3]);
bytes_per_packet = atoi(argv[4]);
if (argc >= 8)
vbr = atoi(argv[5]);
if (bytes_per_packet < 0 || bytes_per_packet > MAX_PACKET)
{
fprintf (stderr, "bytes per packet must be between 0 and %d\n",
MAX_PACKET);
return 1;
}
inFile = argv[argc-2];
fin = fopen(inFile, "rb");
if (!fin)
{
fprintf (stderr, "Could not open input file %s\n", argv[argc-2]);
return 1;
}
outFile = argv[argc-1];
fout = fopen(outFile, "wb+");
if (!fout)
{
fprintf (stderr, "Could not open output file %s\n", argv[argc-1]);
return 1;
}
enc = opus_encoder_create(rate, channels);
mode = MODE_HYBRID;
opus_encoder_ctl(enc, OPUS_SET_BANDWIDTH(BANDWIDTH_FULLBAND));
opus_encoder_ctl(enc, OPUS_SET_MODE(mode));
in = (short*)malloc(frame_size*channels*sizeof(short));
while (!stop)
{
int write_samples;
err = fread(in, sizeof(short), frame_size*channels, fin);
tot_read += err;
if (err < frame_size*channels)
{
int i;
for (i=err;i<frame_size*channels;i++)
in[i] = 0;
stop = 1;
}
len = opus_encode(enc, in, frame_size, data, bytes_per_packet);
if (len <= 0)
{
fprintf (stderr, "opus_encode() returned %d\n", len);
return 1;
}
bits += len*8;
count++;
fputc((len>>8)&0xFF, fout);
fputc((len)&0xFF, fout);
fwrite(data, 1, len, fout);
}
fprintf (stderr, "average bit-rate: %f kb/s\n", bits*rate/(frame_size*(double)count));
opus_encoder_destroy(enc);
fclose(fin);
fclose(fout);
free(in);
free(out);
return 0;
}
static switch_status_t switch_opus_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings)
{
struct opus_context *context = NULL;
int encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
int decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
if (!(encoding || decoding) || (!(context = switch_core_alloc(codec->memory_pool, sizeof(*context))))) {
return SWITCH_STATUS_FALSE;
}
context->frame_size = codec->implementation->samples_per_packet;
if (encoding) {
/* come up with a way to specify these */
int bitrate_bps = codec->implementation->bits_per_second;
int use_vbr = 1;
int complexity = 10;
int use_inbandfec = 1;
int use_dtx = 1;
int bandwidth = OPUS_BANDWIDTH_FULLBAND;
int err;
context->encoder_object = opus_encoder_create(codec->implementation->actual_samples_per_second,
codec->implementation->number_of_channels,
OPUS_APPLICATION_VOIP, &err);
if (err != OPUS_OK) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot create encoder: %s\n", opus_strerror(err));
return SWITCH_STATUS_GENERR;
}
opus_encoder_ctl(context->encoder_object, OPUS_SET_BITRATE(bitrate_bps));
opus_encoder_ctl(context->encoder_object, OPUS_SET_BANDWIDTH(bandwidth));
opus_encoder_ctl(context->encoder_object, OPUS_SET_VBR(use_vbr));
opus_encoder_ctl(context->encoder_object, OPUS_SET_COMPLEXITY(complexity));
opus_encoder_ctl(context->encoder_object, OPUS_SET_INBAND_FEC(use_inbandfec));
opus_encoder_ctl(context->encoder_object, OPUS_SET_DTX(use_dtx));
}
if (decoding) {
int err;
context->decoder_object = opus_decoder_create(codec->implementation->actual_samples_per_second,
codec->implementation->number_of_channels, &err);
if (err != OPUS_OK) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot create decoder: %s\n", opus_strerror(err));
if (context->encoder_object) {
opus_encoder_destroy(context->encoder_object);
context->encoder_object = NULL;
}
return SWITCH_STATUS_GENERR;
}
}
codec->private_info = context;
return SWITCH_STATUS_SUCCESS;
}
int krad_opus_encoder_read (krad_opus_t *krad_opus, unsigned char *buffer, int *nframes) {
int ready;
int bytes;
int resp;
int s, c;
while (krad_ringbuffer_read_space (krad_opus->ringbuf[krad_opus->channels - 1]) >= 512 * 4 ) {
for (c = 0; c < krad_opus->channels; c++) {
krad_opus->ret = krad_ringbuffer_peek (krad_opus->ringbuf[c], (char *)krad_opus->samples[c], (512 * 4) );
krad_opus->src_data[c].data_in = krad_opus->samples[c];
krad_opus->src_data[c].input_frames = 512;
krad_opus->src_data[c].data_out = krad_opus->resampled_samples[c];
krad_opus->src_data[c].output_frames = 2048;
krad_opus->src_error[c] = src_process (krad_opus->src_resampler[c], &krad_opus->src_data[c]);
if (krad_opus->src_error[c] != 0) {
failfast ("Krad Opus Encoder: src resampler error: %s\n", src_strerror(krad_opus->src_error[c]));
}
krad_ringbuffer_read_advance (krad_opus->ringbuf[c], (krad_opus->src_data[c].input_frames_used * 4) );
krad_opus->ret = krad_ringbuffer_write (krad_opus->resampled_ringbuf[c],
(char *)krad_opus->resampled_samples[c],
(krad_opus->src_data[c].output_frames_gen * 4) );
}
}
if (krad_opus->new_bitrate != krad_opus->bitrate) {
krad_opus->bitrate = krad_opus->new_bitrate;
resp = opus_multistream_encoder_ctl (krad_opus->encoder, OPUS_SET_BITRATE(krad_opus->bitrate));
if (resp != OPUS_OK) {
failfast ("Krad Opus Encoder: bitrate request failed %s\n", opus_strerror (resp));
} else {
printk ("Krad Opus Encoder: set opus bitrate %d\n", krad_opus->bitrate);
}
}
if (krad_opus->new_frame_size != krad_opus->frame_size) {
krad_opus->frame_size = krad_opus->new_frame_size;
printk ("Krad Opus Encoder: frame size is now %d\n", krad_opus->frame_size);
}
if (krad_opus->new_complexity != krad_opus->complexity) {
krad_opus->complexity = krad_opus->new_complexity;
resp = opus_multistream_encoder_ctl (krad_opus->encoder, OPUS_SET_COMPLEXITY(krad_opus->complexity));
if (resp != OPUS_OK) {
failfast ("Krad Opus Encoder: complexity request failed %s. \n", opus_strerror(resp));
} else {
printk ("Krad Opus Encoder: set opus complexity %d\n", krad_opus->complexity);
}
}
if (krad_opus->new_signal != krad_opus->signal) {
krad_opus->signal = krad_opus->new_signal;
resp = opus_multistream_encoder_ctl (krad_opus->encoder, OPUS_SET_SIGNAL(krad_opus->signal));
if (resp != OPUS_OK) {
failfast ("Krad Opus Encoder: signal request failed %s\n", opus_strerror(resp));
} else {
printk ("Krad Opus Encoder: set opus signal mode %d\n", krad_opus->signal);
}
}
if (krad_opus->new_bandwidth != krad_opus->bandwidth) {
krad_opus->bandwidth = krad_opus->new_bandwidth;
resp = opus_multistream_encoder_ctl (krad_opus->encoder, OPUS_SET_BANDWIDTH(krad_opus->bandwidth));
if (resp != OPUS_OK) {
failfast ("Krad Opus Encoder: bandwidth request failed %s\n", opus_strerror(resp));
} else {
printk ("Krad Opus Encoder: Set Opus bandwidth mode %d\n", krad_opus->bandwidth);
}
}
ready = 1;
for (c = 0; c < krad_opus->channels; c++) {
if (krad_ringbuffer_read_space (krad_opus->resampled_ringbuf[c]) < krad_opus->frame_size * 4) {
ready = 0;
}
}
if (ready == 1) {
for (c = 0; c < krad_opus->channels; c++) {
krad_opus->ret = krad_ringbuffer_read (krad_opus->resampled_ringbuf[c],
(char *)krad_opus->resampled_samples[c],
(krad_opus->frame_size * 4) );
}
for (s = 0; s < krad_opus->frame_size; s++) {
for (c = 0; c < krad_opus->channels; c++) {
krad_opus->interleaved_resampled_samples[s * krad_opus->channels + c] = krad_opus->resampled_samples[c][s];
}
}
bytes = opus_multistream_encode_float (krad_opus->encoder,
krad_opus->interleaved_resampled_samples,
krad_opus->frame_size,
buffer,
krad_opus->frame_size * 2);
if (bytes < 0) {
failfast ("Krad Opus Encoding failed: %s.", opus_strerror (bytes));
}
*nframes = krad_opus->frame_size;
return bytes;
}
return 0;
}
int main(int argc, char *argv[])
{
int err;
char *inFile, *outFile;
FILE *fin, *fout;
OpusEncoder *enc;
OpusDecoder *dec;
int args;
int len[2];
int frame_size, channels;
int bitrate_bps;
unsigned char *data[2];
int sampling_rate;
int use_vbr;
int internal_sampling_rate_Hz;
int max_payload_bytes;
int complexity;
int use_inbandfec;
int use_dtx;
int forcemono;
int cvbr = 0;
int packet_loss_perc;
int count=0, count_act=0, k;
int skip;
int stop=0;
int tot_read=0, tot_written=0;
short *in, *out;
int mode;
double bits=0.0, bits_act=0.0, bits2=0.0, nrg;
int bandwidth=-1;
const char *bandwidth_string;
int write_samples;
int lost, lost_prev = 1;
int toggle = 0;
int enc_final_range[2];
if (argc < 7 )
{
print_usage( argv );
return 1;
}
mode = atoi(argv[1]) + OPUS_MODE_AUTO;
sampling_rate = atoi(argv[2]);
channels = atoi(argv[3]);
bitrate_bps = atoi(argv[4]);
frame_size = sampling_rate/50;
/* defaults: */
use_vbr = 1;
bandwidth=BANDWIDTH_AUTO;
internal_sampling_rate_Hz = sampling_rate;
max_payload_bytes = MAX_PACKET;
complexity = 10;
use_inbandfec = 0;
forcemono = 0;
use_dtx = 0;
packet_loss_perc = 0;
args = 5;
while( args < argc - 2 ) {
/* process command line options */
if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-cbr" ) == 0 ) {
use_vbr = 0;
args++;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-bandwidth" ) == 0 ) {
if (strcmp(argv[ args + 1 ], "NB")==0)
bandwidth = BANDWIDTH_NARROWBAND;
else if (strcmp(argv[ args + 1 ], "MB")==0)
bandwidth = BANDWIDTH_MEDIUMBAND;
else if (strcmp(argv[ args + 1 ], "WB")==0)
bandwidth = BANDWIDTH_WIDEBAND;
else if (strcmp(argv[ args + 1 ], "SWB")==0)
bandwidth = BANDWIDTH_SUPERWIDEBAND;
else if (strcmp(argv[ args + 1 ], "FB")==0)
bandwidth = BANDWIDTH_FULLBAND;
else {
fprintf(stderr, "Unknown bandwidth %s. Supported are NB, MB, WB, SWB, FB.\n", argv[ args + 1 ]);
return 1;
}
args += 2;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-framesize" ) == 0 ) {
if (strcmp(argv[ args + 1 ], "2.5")==0)
frame_size = sampling_rate/400;
else if (strcmp(argv[ args + 1 ], "5")==0)
frame_size = sampling_rate/200;
else if (strcmp(argv[ args + 1 ], "10")==0)
frame_size = sampling_rate/100;
else if (strcmp(argv[ args + 1 ], "20")==0)
frame_size = sampling_rate/50;
else if (strcmp(argv[ args + 1 ], "40")==0)
frame_size = sampling_rate/25;
else if (strcmp(argv[ args + 1 ], "60")==0)
frame_size = 3*sampling_rate/50;
else {
fprintf(stderr, "Unsupported frame size: %s ms. Supported are 2.5, 5, 10, 20, 40, 60.\n", argv[ args + 1 ]);
return 1;
}
args += 2;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-max_payload" ) == 0 ) {
max_payload_bytes = atoi( argv[ args + 1 ] );
args += 2;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-complexity" ) == 0 ) {
complexity = atoi( argv[ args + 1 ] );
args += 2;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-inbandfec" ) == 0 ) {
use_inbandfec = 1;
args++;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-forcemono" ) == 0 ) {
forcemono = 1;
args++;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-cvbr" ) == 0 ) {
cvbr = 1;
args++;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-dtx") == 0 ) {
use_dtx = 1;
args++;
} else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-loss" ) == 0 ) {
packet_loss_perc = atoi( argv[ args + 1 ] );
args += 2;
} else {
printf( "Error: unrecognized setting: %s\n\n", argv[ args ] );
print_usage( argv );
return 1;
}
}
if( mode < OPUS_MODE_AUTO || mode > OPUS_MODE_AUDIO) {
fprintf (stderr, "mode must be: 0, 1 or 2\n");
return 1;
}
if (max_payload_bytes < 0 || max_payload_bytes > MAX_PACKET)
{
fprintf (stderr, "max_payload_bytes must be between 0 and %d\n",
MAX_PACKET);
return 1;
}
if (bitrate_bps < 0 || bitrate_bps*frame_size/sampling_rate > max_payload_bytes*8)
{
fprintf (stderr, "bytes per packet must be between 0 and %d\n",
max_payload_bytes);
return 1;
}
inFile = argv[argc-2];
fin = fopen(inFile, "rb");
if (!fin)
{
fprintf (stderr, "Could not open input file %s\n", argv[argc-2]);
return 1;
}
outFile = argv[argc-1];
fout = fopen(outFile, "wb+");
if (!fout)
{
fprintf (stderr, "Could not open output file %s\n", argv[argc-1]);
return 1;
}
enc = opus_encoder_create(sampling_rate, channels);
dec = opus_decoder_create(sampling_rate, channels);
opus_encoder_ctl(enc, OPUS_SET_MODE(mode));
opus_encoder_ctl(enc, OPUS_SET_BITRATE(bitrate_bps));
opus_encoder_ctl(enc, OPUS_SET_BANDWIDTH(bandwidth));
opus_encoder_ctl(enc, OPUS_SET_VBR_FLAG(use_vbr));
opus_encoder_ctl(enc, OPUS_SET_VBR_CONSTRAINT(cvbr));
opus_encoder_ctl(enc, OPUS_SET_COMPLEXITY(complexity));
opus_encoder_ctl(enc, OPUS_SET_INBAND_FEC_FLAG(use_inbandfec));
opus_encoder_ctl(enc, OPUS_SET_FORCE_MONO(forcemono));
opus_encoder_ctl(enc, OPUS_SET_DTX_FLAG(use_dtx));
opus_encoder_ctl(enc, OPUS_SET_PACKET_LOSS_PERC(packet_loss_perc));
skip = 5*sampling_rate/1000;
/* When SILK resamples, add 18 samples delay */
/*if (mode != MODE_SILK_ONLY || sampling_rate > 16000)
skip += 18;*/
switch(bandwidth)
{
case BANDWIDTH_NARROWBAND:
bandwidth_string = "narrowband";
break;
case BANDWIDTH_MEDIUMBAND:
bandwidth_string = "mediumband";
break;
case BANDWIDTH_WIDEBAND:
bandwidth_string = "wideband";
break;
case BANDWIDTH_SUPERWIDEBAND:
bandwidth_string = "superwideband";
break;
case BANDWIDTH_FULLBAND:
bandwidth_string = "fullband";
break;
case BANDWIDTH_AUTO:
bandwidth_string = "auto";
break;
default:
bandwidth_string = "unknown";
}
printf("Encoding %d Hz input at %.3f kb/s in %s mode with %d-sample frames.\n", sampling_rate, bitrate_bps*0.001, bandwidth_string, frame_size);
in = (short*)malloc(frame_size*channels*sizeof(short));
out = (short*)malloc(frame_size*channels*sizeof(short));
data[0] = (unsigned char*)calloc(max_payload_bytes,sizeof(char));
if( use_inbandfec ) {
data[1] = (unsigned char*)calloc(max_payload_bytes,sizeof(char));
}
while (!stop)
{
err = fread(in, sizeof(short), frame_size*channels, fin);
tot_read += err;
if (err < frame_size*channels)
{
int i;
for (i=err;i<frame_size*channels;i++)
in[i] = 0;
}
len[toggle] = opus_encode(enc, in, frame_size, data[toggle], max_payload_bytes);
#if OPUS_TEST_RANGE_CODER_STATE
enc_final_range[toggle] = opus_encoder_get_final_range( enc );
#endif
if (len[toggle] < 0)
{
fprintf (stderr, "opus_encode() returned %d\n", len[toggle]);
return 1;
}
lost = rand()%100 < packet_loss_perc || len[toggle]==0;
if( count >= use_inbandfec ) {
/* delay by one packet when using in-band FEC */
if( use_inbandfec ) {
if( lost_prev ) {
/* attempt to decode with in-band FEC from next packet */
opus_decode(dec, lost ? NULL : data[toggle], len[toggle], out, frame_size, 1);
} else {
/* regular decode */
opus_decode(dec, data[1-toggle], len[1-toggle], out, frame_size, 0);
}
} else {
opus_decode(dec, lost ? NULL : data[toggle], len[toggle], out, frame_size, 0);
}
write_samples = frame_size-skip;
tot_written += write_samples*channels;
if (tot_written > tot_read)
{
write_samples -= (tot_written-tot_read)/channels;
stop = 1;
}
fwrite(out+skip, sizeof(short), write_samples*channels, fout);
skip = 0;
}
#if OPUS_TEST_RANGE_CODER_STATE
/* compare final range encoder rng values of encoder and decoder */
if( !lost && !lost_prev && opus_decoder_get_final_range( dec ) != enc_final_range[toggle^use_inbandfec] ) {
fprintf (stderr, "Error: Range coder state mismatch between encoder and decoder in frame %d.\n", count);
return 0;
}
#endif
lost_prev = lost;
/* count bits */
bits += len[toggle]*8;
if( count >= use_inbandfec ) {
nrg = 0.0;
for ( k = 0; k < frame_size * channels; k++ ) {
nrg += in[ k ] * (double)in[ k ];
}
if ( ( nrg / ( frame_size * channels ) ) > 1e5 ) {
bits_act += len[toggle]*8;
count_act++;
}
/* Variance */
bits2 += len[toggle]*len[toggle]*64;
}
count++;
toggle = (toggle + use_inbandfec) & 1;
}
fprintf (stderr, "average bitrate: %7.3f kb/s\n", 1e-3*bits*sampling_rate/(frame_size*(double)count));
fprintf (stderr, "active bitrate: %7.3f kb/s\n", 1e-3*bits_act*sampling_rate/(frame_size*(double)count_act));
fprintf (stderr, "bitrate standard deviation: %7.3f kb/s\n", 1e-3*sqrt(bits2/count - bits*bits/(count*(double)count))*sampling_rate/frame_size);
/* Close any files to which intermediate results were stored */
SILK_DEBUG_STORE_CLOSE_FILES
silk_TimerSave("opus_timing.txt");
opus_encoder_destroy(enc);
opus_decoder_destroy(dec);
free(data[0]);
if (use_inbandfec)
free(data[1]);
fclose(fin);
fclose(fout);
free(in);
free(out);
return 0;
}
