int init_amrcoder(short dtx_t)
{
Word16 dtx = 1; /* enable encoder DTX */
if(dtx_t<0||dtx_t>1)
dtx = DTX_DEFAULT;
else
dtx=(Word16)dtx_t;
pthread_mutex_init(&amr_encode_lock,NULL);
if ( Speech_Encode_Frame_init(&speech_encoder_state, dtx, "encoder")
|| sid_sync_init (&sid_state))
return -1;
return 0;
}
/*
*****************************************************************************
* MAIN PROGRAM
*****************************************************************************
*/
int main (int argc, char *argv[])
{
char *progname = argv[0];
char *modeStr = NULL;
char *usedModeStr = NULL;
char *fileName = NULL;
char *modefileName = NULL;
char *serialFileName = NULL;
FILE *file_speech = NULL; /* File of speech data */
FILE *file_serial = NULL; /* File of coded bits */
FILE *file_modes = NULL; /* File with mode information */
Word16 new_speech[L_FRAME]; /* Pointer to new speech data */
Word16 serial[SERIAL_FRAMESIZE]; /* Output bitstream buffer */
#ifdef MMS_IO
UWord8 packed_bits[MAX_PACKED_SIZE];
Word16 packed_size;
#endif
Word32 frame;
Word16 dtx = 0; /* enable encoder DTX */
/* changed eedodr */
Word16 reset_flag;
int i;
enum Mode mode;
enum Mode used_mode;
enum TXFrameType tx_type;
int useModeFile = 0;
Speech_Encode_FrameState *speech_encoder_state = NULL;
sid_syncState *sid_state = NULL;
proc_head ("Encoder");
fprintf(stderr, "Code compiled with VAD option: %s\n\n", get_vadname());
/*----------------------------------------------------------------------*
* Process command line options *
*----------------------------------------------------------------------*/
while (argc > 1) {
if (strcmp(argv[1], "-dtx") == 0) {
dtx = 1;
} else if (strncmp(argv[1], "-modefile=", 10) == 0) {
useModeFile = 1;
modefileName = argv[1]+10;
} else
break;
argc--;
argv++;
}
/*----------------------------------------------------------------------*
* Check number of arguments *
*----------------------------------------------------------------------*/
if ( (argc != 4 && !useModeFile)
|| (argc != 3 && useModeFile))
{
fprintf (stderr,
" Usage:\n\n"
" %s [-dtx] amr_mode speech_file bitstream_file\n\n"
" or \n\n"
" %s [-dtx] -modefile=mode_file speech_file bitstream_file\n\n"
" -dtx enables DTX mode\n"
" -modefile=mode_file reads AMR modes from text file (one line per frame)\n\n",
progname, progname);
exit (1);
}
/*----------------------------------------------------------------------*
* Open mode file or convert mode string *
*----------------------------------------------------------------------*/
if (useModeFile) {
fileName = argv[1];
serialFileName = argv[2];
/* Open mode control file */
if (strcmp(modefileName, "-") == 0) {
file_modes = stdin;
}
else if ((file_modes = fopen (modefileName, "rt")) == NULL)
{
fprintf (stderr, "Error opening mode control file %s !!\n",
modefileName);
exit (1);
}
fprintf (stderr, " Mode control file: %s\n", modefileName);
} else {
modeStr = argv[1];
fileName = argv[2];
serialFileName = argv[3];
/* check and convert mode string */
if (str2mode(modeStr, &mode) != 0 && mode != MRDTX) {
fprintf(stderr, "Invalid amr_mode specified: '%s'\n",
modeStr);
exit(1);
}
}
/*----------------------------------------------------------------------*
* Open speech file and result file (output serial bit stream) *
*----------------------------------------------------------------------*/
if (strcmp(fileName, "-") == 0) {
file_speech = stdin;
}
else if ((file_speech = fopen (fileName, "rb")) == NULL)
{
fprintf (stderr, "Error opening input file %s !!\n", fileName);
exit (1);
}
fprintf (stderr, " Input speech file: %s\n", fileName);
if (strcmp(serialFileName, "-") == 0) {
file_serial = stdout;
}
else if ((file_serial = fopen (serialFileName, "wb")) == NULL)
{
fprintf (stderr,"Error opening output bitstream file %s !!\n",serialFileName);
exit (1);
}
fprintf (stderr, " Output bitstream file: %s\n", serialFileName);
/*-----------------------------------------------------------------------*
* Initialisation of the coder. *
*-----------------------------------------------------------------------*/
if ( Speech_Encode_Frame_init(&speech_encoder_state, dtx, "encoder")
|| sid_sync_init (&sid_state))
exit(-1);
#ifdef MMS_IO
/* write magic number to indicate single channel AMR file storage format */
fwrite(AMR_MAGIC_NUMBER, sizeof(UWord8), strlen(AMR_MAGIC_NUMBER), file_serial);
#endif
/*-----------------------------------------------------------------------*
* Process speech frame by frame *
*-----------------------------------------------------------------------*/
frame = 0;
while (fread (new_speech, sizeof (Word16), L_FRAME, file_speech) == L_FRAME)
{
/* read new mode string from file if required */
if (useModeFile) {
int res;
if ((res = read_mode(file_modes, &mode)) == EOF) {
fprintf(stderr, "\nend of mode control file reached");
break;
} else if (res == 1)
exit(-1);
}
frame++;
/* zero flags and parameter bits */
for (i = 0; i < SERIAL_FRAMESIZE; i++)
serial[i] = 0;
/* check for homing frame */
reset_flag = encoder_homing_frame_test(new_speech);
/* encode speech */
Speech_Encode_Frame(speech_encoder_state, mode,
new_speech, &serial[1], &used_mode);
/* print frame number and mode information */
mode2str(mode, &modeStr);
mode2str(used_mode, &usedModeStr);
if ( (frame%50) == 0) {
fprintf (stderr, "\rframe=%-8d mode=%-5s used_mode=%-5s",
frame, modeStr, usedModeStr);
}
/* include frame type and mode information in serial bitstream */
sid_sync (sid_state, used_mode, &tx_type);
#ifndef MMS_IO
serial[0] = tx_type;
if (tx_type != TX_NO_DATA) {
serial[1+MAX_SERIAL_SIZE] = mode;
}
else {
serial[1+MAX_SERIAL_SIZE] = -1;
}
/* write bitstream to output file */
if (fwrite (serial, sizeof (Word16), SERIAL_FRAMESIZE, file_serial)
!= SERIAL_FRAMESIZE) {
fprintf(stderr, "\nerror writing output file: %s\n",
strerror(errno));
exit(-1);
}
#else
packed_size = PackBits(used_mode, mode, tx_type, &serial[1], packed_bits);
/* write file storage format bitstream to output file */
if (fwrite (packed_bits, sizeof (UWord8), packed_size, file_serial)
!= packed_size) {
fprintf(stderr, "\nerror writing output file: %s\n",
strerror(errno));
exit(-1);
}
#endif
fflush(file_serial);
/* perform homing if homing frame was detected at encoder input */
if (reset_flag != 0)
{
Speech_Encode_Frame_reset(speech_encoder_state);
sid_sync_reset(sid_state);
}
}
fprintf (stderr, "\n%d frame(s) processed\n", frame);
/*-----------------------------------------------------------------------*
* Close down speech coder *
*-----------------------------------------------------------------------*/
Speech_Encode_Frame_exit(&speech_encoder_state);
sid_sync_exit (&sid_state);
return (0);
}
struct OutputBuffer* encodePCMtoAMR(const char *buf, unsigned int len)
{
const char* curr_buf = buf;
unsigned int curr_len = len;
struct OutputBuffer* ob = NULL;
Speech_Encode_FrameState *speech_encoder_state = NULL;
sid_syncState *sid_state = NULL;
//Word16 new_speech[L_FRAME]; /* Pointer to new speech data */
Word16 *new_speech = NULL;
Word16 serial[SERIAL_FRAMESIZE]; /* Output bitstream buffer */
#ifdef MMS_IO
UWord8 packed_bits[MAX_PACKED_SIZE];
Word16 packed_size;
#endif
int i;
Word16 dtx = 0;
const unsigned int frame_size = sizeof(Word16)*L_FRAME;
enum Mode mode = MR475;
enum Mode used_mode;
enum TXFrameType tx_type;
/* changed eedodr */
Word16 reset_flag;
/*-----------------------------------------------------------------------*
* Initialisation of the coder. *
*-----------------------------------------------------------------------*/
if (Speech_Encode_Frame_init(&speech_encoder_state, dtx, "encoder") ||
sid_sync_init(&sid_state))
{
return NULL;
}
ob = OB_New();
#ifdef MMS_IO
/* write magic number to indicate single channel AMR file storage format */
OB_Append(ob, AMR_MAGIC_NUMBER, AMR_MAGIC_NUMBER_LEN);
#endif
/*-----------------------------------------------------------------------*
* Process speech frame by frame *
*-----------------------------------------------------------------------*/
while (curr_len >= frame_size)
{
// memcpy(new_speech, curr_buf, frame_size);
new_speech = (Word16*)curr_buf;
curr_buf += frame_size;
curr_len -= frame_size;
/* zero flags and parameter bits */
for (i = 0; i < SERIAL_FRAMESIZE; i++)
serial[i] = 0;
/* check for homing frame */
reset_flag = encoder_homing_frame_test(new_speech);
/* encode speech */
Speech_Encode_Frame(speech_encoder_state, mode,
new_speech, &serial[1], &used_mode);
/* include frame type and mode information in serial bitstream */
sid_sync(sid_state, used_mode, &tx_type);
#ifndef MMS_IO
serial[0] = tx_type;
if (tx_type != TX_NO_DATA) {
serial[1+MAX_SERIAL_SIZE] = mode;
}
else {
serial[1+MAX_SERIAL_SIZE] = -1;
}
/* write bitstream to output file */
if (fwrite (serial, sizeof (Word16), SERIAL_FRAMESIZE, file_serial)
!= SERIAL_FRAMESIZE) {
fprintf(stderr, "\nerror writing output file: %s\n",
strerror(errno));
exit(-1);
}
#else
packed_size = PackBits(used_mode, mode, tx_type, &serial[1], packed_bits);
/* write file storage format bitstream to output file */
OB_Append(ob, (const char *)packed_bits, packed_size);
#endif
/* perform homing if homing frame was detected at encoder input */
if (reset_flag != 0)
{
Speech_Encode_Frame_reset(speech_encoder_state);
sid_sync_reset(sid_state);
}
}
Speech_Encode_Frame_exit(&speech_encoder_state);
sid_sync_exit(&sid_state);
return ob;
}
