static switch_status_t switch_bcg729_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings)
{
struct bcg729_context *context = NULL;
int encoding, decoding;
encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
if (!(encoding || decoding) || (!(context = switch_core_alloc(codec->memory_pool, sizeof(struct bcg729_context))))) {
return SWITCH_STATUS_FALSE;
} else {
if (codec->fmtp_in) {
codec->fmtp_out = switch_core_strdup(codec->memory_pool, codec->fmtp_in);
}
if (encoding) {
context->encoder_object = initBcg729EncoderChannel();
}
if (decoding) {
context->decoder_object = initBcg729DecoderChannel();
}
codec->private_info = context;
return SWITCH_STATUS_SUCCESS;
}
}
static void generic_plc_init(MSFilter *f) {
generic_plc_struct *mgps = (generic_plc_struct*) ms_new0(generic_plc_struct, 1);
#ifdef HAVE_G729B
mgps->decoderChannelContext = initBcg729DecoderChannel(); /* initialize bcg729 decoder for CNG */
#endif
mgps->concealer = ms_concealer_context_new(MAX_PLC_COUNT);
mgps->nchannels = 1;
f->data = mgps;
}
static ErlDrvData codec_drv_start(ErlDrvPort port, char *buff)
{
codec_data* d = (codec_data*)driver_alloc(sizeof(codec_data));
d->port = port;
d->estate = initBcg729EncoderChannel();
d->dstate = initBcg729DecoderChannel();
set_port_control_flags(port, PORT_CONTROL_FLAG_BINARY);
return (ErlDrvData)d;
}
int mgcp_transcoding_setup(struct mgcp_endpoint *endp,
struct mgcp_rtp_end *dst_end,
struct mgcp_rtp_end *src_end)
{
struct mgcp_process_rtp_state *state;
enum audio_format src_fmt, dst_fmt;
const struct mgcp_rtp_codec *src_codec = &src_end->codec;
const struct mgcp_rtp_codec *dst_codec = &dst_end->codec;
/* cleanup first */
if (dst_end->rtp_process_data) {
talloc_free(dst_end->rtp_process_data);
dst_end->rtp_process_data = NULL;
}
if (!src_end)
return 0;
src_fmt = get_audio_format(src_codec);
dst_fmt = get_audio_format(dst_codec);
LOGP(DMGCP, LOGL_ERROR,
"Checking transcoding: %s (%d) -> %s (%d)\n",
src_codec->subtype_name, src_codec->payload_type,
dst_codec->subtype_name, dst_codec->payload_type);
if (src_fmt == AF_INVALID || dst_fmt == AF_INVALID) {
if (!src_codec->subtype_name || !dst_codec->subtype_name)
/* Not enough info, do nothing */
return 0;
if (strcmp(src_codec->subtype_name, dst_codec->subtype_name) == 0)
/* Nothing to do */
return 0;
LOGP(DMGCP, LOGL_ERROR,
"Cannot transcode: %s codec not supported (%s -> %s).\n",
src_fmt != AF_INVALID ? "destination" : "source",
src_codec->audio_name, dst_codec->audio_name);
return -EINVAL;
}
if (src_codec->rate && dst_codec->rate && src_codec->rate != dst_codec->rate) {
LOGP(DMGCP, LOGL_ERROR,
"Cannot transcode: rate conversion (%d -> %d) not supported.\n",
src_codec->rate, dst_codec->rate);
return -EINVAL;
}
state = talloc_zero(endp->tcfg->cfg, struct mgcp_process_rtp_state);
talloc_set_destructor(state, processing_state_destructor);
dst_end->rtp_process_data = state;
state->src_fmt = src_fmt;
switch (state->src_fmt) {
case AF_L16:
case AF_S16:
state->src_frame_size = 80 * sizeof(short);
state->src_samples_per_frame = 80;
break;
case AF_GSM:
state->src_frame_size = sizeof(gsm_frame);
state->src_samples_per_frame = 160;
state->src.gsm_handle = gsm_create();
if (!state->src.gsm_handle) {
LOGP(DMGCP, LOGL_ERROR,
"Failed to initialize GSM decoder.\n");
return -EINVAL;
}
break;
#ifdef HAVE_BCG729
case AF_G729:
state->src_frame_size = 10;
state->src_samples_per_frame = 80;
state->src.g729_dec = initBcg729DecoderChannel();
if (!state->src.g729_dec) {
LOGP(DMGCP, LOGL_ERROR,
"Failed to initialize G.729 decoder.\n");
return -EINVAL;
}
break;
#endif
case AF_PCMA:
state->src_frame_size = 80;
state->src_samples_per_frame = 80;
break;
default:
break;
}
state->dst_fmt = dst_fmt;
switch (state->dst_fmt) {
case AF_L16:
case AF_S16:
state->dst_frame_size = 80*sizeof(short);
state->dst_samples_per_frame = 80;
break;
case AF_GSM:
state->dst_frame_size = sizeof(gsm_frame);
state->dst_samples_per_frame = 160;
state->dst.gsm_handle = gsm_create();
if (!state->dst.gsm_handle) {
LOGP(DMGCP, LOGL_ERROR,
"Failed to initialize GSM encoder.\n");
return -EINVAL;
}
break;
#ifdef HAVE_BCG729
case AF_G729:
state->dst_frame_size = 10;
state->dst_samples_per_frame = 80;
state->dst.g729_enc = initBcg729EncoderChannel();
if (!state->dst.g729_enc) {
LOGP(DMGCP, LOGL_ERROR,
"Failed to initialize G.729 decoder.\n");
return -EINVAL;
}
break;
#endif
case AF_PCMA:
state->dst_frame_size = 80;
state->dst_samples_per_frame = 80;
break;
default:
break;
}
if (dst_end->force_output_ptime)
state->dst_packet_duration = mgcp_rtp_packet_duration(endp, dst_end);
LOGP(DMGCP, LOGL_INFO,
"Initialized RTP processing on: 0x%x "
"conv: %d (%d, %d, %s) -> %d (%d, %d, %s)\n",
ENDPOINT_NUMBER(endp),
src_fmt, src_codec->payload_type, src_codec->rate, src_end->fmtp_extra,
dst_fmt, dst_codec->payload_type, dst_codec->rate, dst_end->fmtp_extra);
return 0;
}
int main(int argc, char *argv[] )
{
int i;
/*** get calling argument ***/
char *filePrefix[MAX_CHANNEL_NBR];
getArgumentsMultiChannel(argc, argv, filePrefix); /* check argument and set filePrefix if needed */
/*** input and output file pointers ***/
FILE *fpInput[MAX_CHANNEL_NBR];
FILE *fpOutput[MAX_CHANNEL_NBR];
FILE *fpBinOutput[MAX_CHANNEL_NBR];
/*** input and output buffers ***/
uint16_t inputBuffer[NB_PARAMETERS+1]; /* input buffer: an array containing the 15 parameters and the frame erasure flag */
int16_t outputBuffer[L_FRAME]; /* output buffer: the reconstructed signal */
uint8_t bitStream[10]; /* binary input for the decoder */
bcg729DecoderChannelContextStruct *decoderChannelContext[MAX_CHANNEL_NBR]; /* context array, one per channel */
/*** inits ***/
for (i=0; i<argc-1; i++) {
/* open the inputs file */
if ( (fpInput[i] = fopen(argv[i+1], "r")) == NULL) {
printf("%s - Error: can't open file %s\n", argv[0], argv[i+1]);
exit(-1);
}
/* create the outputs file(filename is the same than input file with the .out extension) */
char *outputFile = malloc((strlen(filePrefix[i])+15)*sizeof(char));
sprintf(outputFile, "%s.out.multi",filePrefix[i]);
if ( (fpOutput[i] = fopen(outputFile, "w")) == NULL) {
printf("%s - Error: can't create file %s\n", argv[i], outputFile);
exit(-1);
}
sprintf(outputFile, "%s.multi.pcm",filePrefix[i]);
if ( (fpBinOutput[i] = fopen(outputFile, "wb")) == NULL) {
printf("%s - Error: can't create file %s\n", argv[0], outputFile);
exit(-1);
}
/*** init of the tested bloc ***/
decoderChannelContext[i] = initBcg729DecoderChannel();
}
/*** initialisation complete ***/
/* perf measurement */
clock_t start, end;
double cpu_time_used=0.0;
int framesNbr =0;
/* increase LOOP_N to increase input length and perform a more accurate profiling or perf measurement */
#define LOOP_N 1
int j,k;
for (j=0; j<LOOP_N; j++) {
/* perf measurement */
/*** loop over inputs file ***/
int endedFilesNbr = 0;
int endedFiles[MAX_CHANNEL_NBR];
for (k=0; k<argc-1; k++) { /* reset the array of boolean containing a flag for files already read */
endedFiles[k]=0;
}
while (endedFilesNbr<argc-1) { /* loop until the longest file is over */
for (k=0; k<argc-1; k++) { /* read one frame on each not ended file */
if (endedFiles[k]==0) { /* read only if the file is not over */
if (fscanf(fpInput[k], "%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd,%hd", &(inputBuffer[0]), &(inputBuffer[1]), &(inputBuffer[2]), &(inputBuffer[3]), &(inputBuffer[4]), &(inputBuffer[5]), &(inputBuffer[6]), &(inputBuffer[7]), &(inputBuffer[8]), &(inputBuffer[9]), &(inputBuffer[10]), &(inputBuffer[11]), &(inputBuffer[12]), &(inputBuffer[13]), &(inputBuffer[14]), &(inputBuffer[15]))==16) /* index 4 and 5 are inverted to get P0 in 4 and P1 in 5 in the array */
{ /* input buffer contains the parameters and in [15] the frame erasure flag */
int i;
framesNbr++;
parametersArray2BitStream(inputBuffer, bitStream);
start = clock();
bcg729Decoder(decoderChannelContext[k], bitStream, inputBuffer[15], outputBuffer);
end = clock();
cpu_time_used += ((double) (end - start));
/* write the output to the output file */
if (j==0) {
fprintf(fpOutput[k],"%d",outputBuffer[0]);
for (i=1; i<L_FRAME; i++) {
fprintf(fpOutput[k],",%d",outputBuffer[i]);
}
fprintf(fpOutput[k],"\n");
/* write the ouput to raw data file */
fwrite(outputBuffer, sizeof(int16_t), L_FRAME, fpBinOutput[k]);
}
} else { /* we've reach the end of the file */
endedFiles[k]=1;
endedFilesNbr++;
}
}
}
}
/* perf measurement */
for (k=0; k<argc-1; k++) {
rewind(fpInput[k]);
}
}
/* close decoder channels */
for (k=0; k<argc-1; k++) {
closeBcg729DecoderChannel(decoderChannelContext[k]);
}
/* Perf measurement: uncomment next line to print cpu usage */
printf("Decode %d frames in %f seconds : %f us/frame\n", framesNbr, cpu_time_used/CLOCKS_PER_SEC, cpu_time_used*1000000/((double)framesNbr*CLOCKS_PER_SEC));
/* perf measurement */
exit (0);
}
