int send_encoded_audio(struct iaxc_call *call, void *data, int format, int samples)
{
unsigned char outbuf[1024];
int outsize = 1024;
int silent;
int insize = samples;
//fprintf(stderr, "in encode_audio, format=%d\n", format);
/* update last input timestamp */
gettimeofday( &timeLastInput, NULL ) ;
silent = iaxc_input_postprocess(data,insize,8000);
if(silent) {
if(!call->tx_silent) { /* send a Comfort Noise Frame */
call->tx_silent = 1;
if(iaxc_filters & IAXC_FILTER_CN)
iax_send_cng(call->session, 10, NULL, 0);
}
return 0; /* poof! no encoding! */
}
/* we're going to send voice now */
call->tx_silent = 0;
/* destroy encoder if it is incorrect type */
if(call->encoder && call->encoder->format != format)
{
call->encoder->destroy(call->encoder);
call->encoder = NULL;
}
/* just break early if there's no format defined: this happens for the
* first couple of frames of new calls */
if(format == 0)
return 0;
/* create encoder if necessary */
if(!call->encoder) {
call->encoder = create_codec(format);
}
if(!call->encoder) {
/* ERROR: no codec */
fprintf(stderr, "ERROR: Codec could not be created: %d\n", format);
return 0;
}
if(call->encoder->encode(call->encoder, &insize, (short *)data, &outsize, outbuf)) {
/* ERROR: codec error */
fprintf(stderr, "ERROR: encode error: %d\n", format);
return 0;
}
if(samples-insize == 0)
{
fprintf(stderr, "ERROR encoding (no samples output (samples=%d)\n", samples);
return -1;
}
if(iax_send_voice(call->session,format, outbuf, 1024-outsize, samples-insize) == -1)
{
puts("Failed to send voice!");
return -1;
}
return 0;
}
int audio_send_encoded_audio(struct iaxc_call *call, int callNo, void *data,
int format, int samples)
{
unsigned char outbuf[1024];
int outsize = 1024;
int silent;
int insize = samples;
/* update last input timestamp */
timeLastInput = iax_tvnow();
silent = input_postprocess(data, insize, 8000);
if(silent)
{
if(!call->tx_silent)
{ /* send a Comfort Noise Frame */
call->tx_silent = 1;
if ( iaxci_filters & IAXC_FILTER_CN )
iax_send_cng(call->session, 10, NULL, 0);
}
return 0; /* poof! no encoding! */
}
/* we're going to send voice now */
call->tx_silent = 0;
/* destroy encoder if it is incorrect type */
if(call->encoder && call->encoder->format != format)
{
call->encoder->destroy(call->encoder);
call->encoder = NULL;
}
/* just break early if there's no format defined: this happens for the
* first couple of frames of new calls */
if(format == 0) return 0;
/* create encoder if necessary */
if(!call->encoder)
{
call->encoder = create_codec(format);
}
if(!call->encoder)
{
/* ERROR: no codec */
fprintf(stderr, "ERROR: Codec could not be created: %d\n", format);
return 0;
}
if(call->encoder->encode(call->encoder, &insize, (short *)data,
&outsize, outbuf))
{
/* ERROR: codec error */
fprintf(stderr, "ERROR: encode error: %d\n", format);
return 0;
}
if(samples-insize == 0)
{
fprintf(stderr, "ERROR encoding (no samples output (samples=%d)\n", samples);
return -1;
}
// Send the encoded audio data back to the app if required
// TODO: fix the stupid way in which the encoded audio size is returned
if ( iaxc_get_audio_prefs() & IAXC_AUDIO_PREF_RECV_LOCAL_ENCODED )
iaxci_do_audio_callback(callNo, 0, IAXC_SOURCE_LOCAL, 1,
call->encoder->format & IAXC_AUDIO_FORMAT_MASK,
sizeof(outbuf) - outsize, outbuf);
if(iax_send_voice(call->session,format, outbuf,
sizeof(outbuf) - outsize, samples-insize) == -1)
{
fprintf(stderr, "Failed to send voice! %s\n", iax_errstr);
return -1;
}
return 0;
}
