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formatting and doxygen fixes (issue #6300)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@8360 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.4
Russell Bryant 20 years ago
parent 4dc76fbcc1
commit ba56332ce8
4 changed files with 809 additions and 878 deletions
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348
codecs/codec_a_mu.c
Unescape View File

@ -62,10 +62,10 @@ static unsigned char a2mu[256];
struct alaw_encoder_pvt
{
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
unsigned char outbuf[BUFFER_SIZE]; /* Encoded alaw, two nibbles to a word */
int tail;
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
unsigned char outbuf[BUFFER_SIZE]; /* Encoded alaw, two nibbles to a word */
int tail;
};
/*
@ -74,99 +74,91 @@ struct alaw_encoder_pvt
struct ulaw_encoder_pvt
{
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
unsigned char outbuf[BUFFER_SIZE]; /* Encoded ulaw values */
int tail;
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
unsigned char outbuf[BUFFER_SIZE]; /* Encoded ulaw values */
int tail;
};
static struct ast_translator_pvt *
alawtoulaw_new (void)
static struct ast_translator_pvt *alawtoulaw_new(void)
{
struct ulaw_encoder_pvt *tmp;
tmp = malloc (sizeof (struct ulaw_encoder_pvt));
if (tmp)
{
memset(tmp, 0, sizeof(*tmp));
tmp->tail = 0;
localusecnt++;
ast_update_use_count ();
}
return (struct ast_translator_pvt *) tmp;
struct ulaw_encoder_pvt *tmp;
tmp = malloc(sizeof(struct ulaw_encoder_pvt));
if (tmp) {
memset(tmp, 0, sizeof(*tmp));
tmp->tail = 0;
localusecnt++;
ast_update_use_count();
}
return (struct ast_translator_pvt *)tmp;
}
static struct ast_translator_pvt *
ulawtoalaw_new (void)
static struct ast_translator_pvt *ulawtoalaw_new(void)
{
struct alaw_encoder_pvt *tmp;
tmp = malloc (sizeof (struct alaw_encoder_pvt));
if (tmp)
{
memset(tmp, 0, sizeof(*tmp));
localusecnt++;
ast_update_use_count ();
tmp->tail = 0;
}
return (struct ast_translator_pvt *) tmp;
struct alaw_encoder_pvt *tmp;
tmp = malloc(sizeof(struct alaw_encoder_pvt));
if (tmp) {
memset(tmp, 0, sizeof(*tmp));
localusecnt++;
ast_update_use_count();
tmp->tail = 0;
}
return (struct ast_translator_pvt *)tmp;
}
static int
alawtoulaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
static int alawtoulaw_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
{
struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *) pvt;
int x;
unsigned char *b;
if ((tmp->tail + f->datalen)> sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
/* Reset ssindex and signal to frame's specified values */
b = f->data;
for (x=0;x<f->datalen;x++)
tmp->outbuf[tmp->tail + x] = a2mu[b[x]];
tmp->tail += f->datalen;
return 0;
struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *)pvt;
int x;
unsigned char *b;
if ((tmp->tail + f->datalen) > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
/* Reset ssindex and signal to frame's specified values */
b = f->data;
for (x=0;x<f->datalen;x++)
tmp->outbuf[tmp->tail + x] = a2mu[b[x]];
tmp->tail += f->datalen;
return 0;
}
static struct ast_frame *
alawtoulaw_frameout (struct ast_translator_pvt *pvt)
static struct ast_frame *alawtoulaw_frameout(struct ast_translator_pvt *pvt)
{
struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *) pvt;
if (!tmp->tail)
return NULL;
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ULAW;
tmp->f.datalen = tmp->tail;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail = 0;
return &tmp->f;
struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *)pvt;
if (!tmp->tail)
return NULL;
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ULAW;
tmp->f.datalen = tmp->tail;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail = 0;
return &tmp->f;
}
static int
ulawtoalaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
static int ulawtoalaw_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
{
struct alaw_encoder_pvt *tmp = (struct alaw_encoder_pvt *) pvt;
int x;
unsigned char *s;
if (tmp->tail + f->datalen >= sizeof(tmp->outbuf))
{
ast_log (LOG_WARNING, "Out of buffer space\n");
return -1;
}
s = f->data;
for (x=0;x<f->datalen;x++)
tmp->outbuf[x+tmp->tail] = mu2a[s[x]];
tmp->tail += f->datalen;
return 0;
struct alaw_encoder_pvt *tmp = (struct alaw_encoder_pvt *)pvt;
int x;
unsigned char *s;
if (tmp->tail + f->datalen >= sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
s = f->data;
for (x=0;x<f->datalen;x++)
tmp->outbuf[x+tmp->tail] = mu2a[s[x]];
tmp->tail += f->datalen;
return 0;
}
/*
@ -181,61 +173,57 @@ ulawtoalaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
* Leftover inbuf data gets packed, tail gets updated.
*/
static struct ast_frame *
ulawtoalaw_frameout (struct ast_translator_pvt *pvt)
static struct ast_frame *ulawtoalaw_frameout(struct ast_translator_pvt *pvt)
{
struct alaw_encoder_pvt *tmp = (struct alaw_encoder_pvt *) pvt;
if (tmp->tail) {
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ALAW;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->f.datalen = tmp->tail;
tmp->tail = 0;
return &tmp->f;
} else return NULL;
struct alaw_encoder_pvt *tmp = (struct alaw_encoder_pvt *)pvt;
if (tmp->tail) {
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ALAW;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->f.datalen = tmp->tail;
tmp->tail = 0;
return &tmp->f;
} else
return NULL;
}
/*
* alawToLin_Sample
*/
static struct ast_frame *
alawtoulaw_sample (void)
static struct ast_frame *alawtoulaw_sample(void)
{
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ALAW;
f.datalen = sizeof (ulaw_slin_ex);
f.samples = sizeof(ulaw_slin_ex);
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = ulaw_slin_ex;
return &f;
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ALAW;
f.datalen = sizeof(ulaw_slin_ex);
f.samples = sizeof(ulaw_slin_ex);
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = ulaw_slin_ex;
return &f;
}
static struct ast_frame *
ulawtoalaw_sample (void)
static struct ast_frame *ulawtoalaw_sample(void)
{
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ULAW;
f.datalen = sizeof (ulaw_slin_ex);
f.samples = sizeof(ulaw_slin_ex);
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = ulaw_slin_ex;
return &f;
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ULAW;
f.datalen = sizeof(ulaw_slin_ex);
f.samples = sizeof(ulaw_slin_ex);
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = ulaw_slin_ex;
return &f;
}
/*
* alaw_Destroy
* Destroys a private workspace.
@ -247,12 +235,11 @@ ulawtoalaw_sample (void)
* None.
*/
static void
alaw_destroy (struct ast_translator_pvt *pvt)
static void alaw_destroy(struct ast_translator_pvt *pvt)
{
free (pvt);
localusecnt--;
ast_update_use_count ();
free(pvt);
localusecnt--;
ast_update_use_count();
}
/*
@ -260,15 +247,15 @@ alaw_destroy (struct ast_translator_pvt *pvt)
*/
static struct ast_translator alawtoulaw = {
"alawtoulaw",
AST_FORMAT_ALAW,
AST_FORMAT_ULAW,
alawtoulaw_new,
alawtoulaw_framein,
alawtoulaw_frameout,
alaw_destroy,
/* NULL */
alawtoulaw_sample
"alawtoulaw",
AST_FORMAT_ALAW,
AST_FORMAT_ULAW,
alawtoulaw_new,
alawtoulaw_framein,
alawtoulaw_frameout,
alaw_destroy,
/* NULL */
alawtoulaw_sample
};
/*
@ -276,68 +263,63 @@ static struct ast_translator alawtoulaw = {
*/
static struct ast_translator ulawtoalaw = {
"ulawtoalaw",
AST_FORMAT_ULAW,
AST_FORMAT_ALAW,
ulawtoalaw_new,
ulawtoalaw_framein,
ulawtoalaw_frameout,
alaw_destroy,
/* NULL */
ulawtoalaw_sample
"ulawtoalaw",
AST_FORMAT_ULAW,
AST_FORMAT_ALAW,
ulawtoalaw_new,
ulawtoalaw_framein,
ulawtoalaw_frameout,
alaw_destroy,
/* NULL */
ulawtoalaw_sample
};
int
unload_module (void)
int unload_module(void)
{
int res;
ast_mutex_lock (&localuser_lock);
res = ast_unregister_translator (&ulawtoalaw);
if (!res)
res = ast_unregister_translator (&alawtoulaw);
if (localusecnt)
res = -1;
ast_mutex_unlock (&localuser_lock);
return res;
int res;
ast_mutex_lock(&localuser_lock);
res = ast_unregister_translator(&ulawtoalaw);
if (!res)
res = ast_unregister_translator(&alawtoulaw);
if (localusecnt)
res = -1;
ast_mutex_unlock(&localuser_lock);
return res;
}
int
load_module (void)
int load_module(void)
{
int res;
int x;
for (x=0;x<256;x++) {
mu2a[x] = AST_LIN2A(AST_MULAW(x));
a2mu[x] = AST_LIN2MU(AST_ALAW(x));
}
res = ast_register_translator (&alawtoulaw);
if (!res)
res = ast_register_translator (&ulawtoalaw);
else
ast_unregister_translator (&alawtoulaw);
return res;
int res;
int x;
for (x=0;x<256;x++) {
mu2a[x] = AST_LIN2A(AST_MULAW(x));
a2mu[x] = AST_LIN2MU(AST_ALAW(x));
}
res = ast_register_translator(&alawtoulaw);
if (!res)
res = ast_register_translator(&ulawtoalaw);
else
ast_unregister_translator(&alawtoulaw);
return res;
}
/*
* Return a description of this module.
*/
char *
description (void)
char *description(void)
{
return tdesc;
return tdesc;
}
int
usecount (void)
int usecount(void)
{
int res;
STANDARD_USECOUNT (res);
return res;
int res;
STANDARD_USECOUNT(res);
return res;
}
char *
key ()
char *key()
{
return ASTERISK_GPL_KEY;
return ASTERISK_GPL_KEY;
}

506
codecs/codec_adpcm.c
Unescape View File

@ -102,8 +102,7 @@ struct adpcm_state {
* Sets the index to the step size table for the next encode.
*/
static inline short
decode(int encoded, struct adpcm_state* state)
static inline short decode(int encoded, struct adpcm_state *state)
{
int diff;
int step;
@ -117,9 +116,12 @@ decode(int encoded, struct adpcm_state* state)
diff = (((encoded << 1) + 1) * step) >> 3;
#else /* BLI code */
diff = step >> 3;
if (encoded & 4) diff += step;
if (encoded & 2) diff += step >> 1;
if (encoded & 1) diff += step >> 2;
if (encoded & 4)
diff += step;
if (encoded & 2)
diff += step >> 1;
if (encoded & 1)
diff += step >> 2;
if ((encoded >> 1) & step & 0x1)
diff++;
#endif
@ -143,8 +145,7 @@ decode(int encoded, struct adpcm_state* state)
#ifdef AUTO_RETURN
if (encoded)
state->zero_count = 0;
else if (++(state->zero_count) == 24)
{
else if (++(state->zero_count) == 24) {
state->zero_count = 0;
if (state->signal > 0)
state->next_flag = 0x1;
@ -174,51 +175,43 @@ decode(int encoded, struct adpcm_state* state)
* signal gets updated with each pass.
*/
static inline int
adpcm(short csig, struct adpcm_state* state)
static inline int adpcm(short csig, struct adpcm_state *state)
{
int diff;
int step;
int encoded;
/*
* Clip csig if too large or too small
*/
* Clip csig if too large or too small
*/
csig >>= 4;
step = stpsz[state->ssindex];
diff = csig - state->signal;
#ifdef NOT_BLI
if (diff < 0)
{
if (diff < 0) {
encoded = (-diff << 2) / step;
if (encoded > 7)
encoded = 7;
encoded |= 0x08;
}
else
{
} else {
encoded = (diff << 2) / step;
if (encoded > 7)
encoded = 7;
}
#else /* BLI code */
if (diff < 0)
{
if (diff < 0) {
encoded = 8;
diff = -diff;
}
else
} else
encoded = 0;
if (diff >= step)
{
if (diff >= step) {
encoded |= 4;
diff -= step;
}
step >>= 1;
if (diff >= step)
{
if (diff >= step) {
encoded |= 2;
diff -= step;
}
@ -239,12 +232,12 @@ adpcm(short csig, struct adpcm_state* state)
struct adpcm_encoder_pvt
{
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
short inbuf[BUFFER_SIZE]; /* Unencoded signed linear values */
unsigned char outbuf[BUFFER_SIZE]; /* Encoded ADPCM, two nibbles to a word */
struct adpcm_state state;
int tail;
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
short inbuf[BUFFER_SIZE]; /* Unencoded signed linear values */
unsigned char outbuf[BUFFER_SIZE]; /* Encoded ADPCM, two nibbles to a word */
struct adpcm_state state;
int tail;
};
/*
@ -253,12 +246,12 @@ struct adpcm_encoder_pvt
struct adpcm_decoder_pvt
{
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
short outbuf[BUFFER_SIZE]; /* Decoded signed linear values */
struct adpcm_state state;
int tail;
plc_state_t plc;
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
short outbuf[BUFFER_SIZE]; /* Decoded signed linear values */
struct adpcm_state state;
int tail;
plc_state_t plc;
};
/*
@ -272,20 +265,18 @@ struct adpcm_decoder_pvt
* None.
*/
static struct ast_translator_pvt *
adpcmtolin_new (void)
static struct ast_translator_pvt *adpcmtolin_new(void)
{
struct adpcm_decoder_pvt *tmp;
tmp = malloc (sizeof (struct adpcm_decoder_pvt));
if (tmp)
{
memset(tmp, 0, sizeof(*tmp));
tmp->tail = 0;
plc_init(&tmp->plc);
localusecnt++;
ast_update_use_count ();
}
return (struct ast_translator_pvt *) tmp;
struct adpcm_decoder_pvt *tmp;
tmp = malloc(sizeof(struct adpcm_decoder_pvt));
if (tmp) {
memset(tmp, 0, sizeof(*tmp));
tmp->tail = 0;
plc_init(&tmp->plc);
localusecnt++;
ast_update_use_count();
}
return (struct ast_translator_pvt *)tmp;
}
/*
@ -299,19 +290,17 @@ adpcmtolin_new (void)
* None.
*/
static struct ast_translator_pvt *
lintoadpcm_new (void)
static struct ast_translator_pvt *lintoadpcm_new(void)
{
struct adpcm_encoder_pvt *tmp;
tmp = malloc (sizeof (struct adpcm_encoder_pvt));
if (tmp)
{
memset(tmp, 0, sizeof(*tmp));
localusecnt++;
ast_update_use_count ();
tmp->tail = 0;
}
return (struct ast_translator_pvt *) tmp;
struct adpcm_encoder_pvt *tmp;
tmp = malloc(sizeof(struct adpcm_encoder_pvt));
if (tmp) {
memset(tmp, 0, sizeof(*tmp));
localusecnt++;
ast_update_use_count();
tmp->tail = 0;
}
return (struct ast_translator_pvt *)tmp;
}
/*
@ -326,40 +315,40 @@ lintoadpcm_new (void)
* tmp->tail is the number of packed values in the buffer.
*/
static int
adpcmtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
static int adpcmtolin_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
{
struct adpcm_decoder_pvt *tmp = (struct adpcm_decoder_pvt *) pvt;
int x;
unsigned char *b;
if(f->datalen == 0) { /* perform PLC with nominal framesize of 20ms/160 samples */
if((tmp->tail + 160) > sizeof(tmp->outbuf) / 2) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if(useplc) {
plc_fillin(&tmp->plc, tmp->outbuf+tmp->tail, 160);
tmp->tail += 160;
struct adpcm_decoder_pvt *tmp = (struct adpcm_decoder_pvt *)pvt;
int x;
unsigned char *b;
if(f->datalen == 0) { /* perform PLC with nominal framesize of 20ms/160 samples */
if((tmp->tail + 160) > sizeof(tmp->outbuf) / 2) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if(useplc) {
plc_fillin(&tmp->plc, tmp->outbuf+tmp->tail, 160);
tmp->tail += 160;
}
return 0;
}
return 0;
}
if (f->datalen * 4 + tmp->tail * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if (f->datalen * 4 + tmp->tail * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
b = f->data;
b = f->data;
for (x=0;x<f->datalen;x++) {
tmp->outbuf[tmp->tail++] = decode((b[x] >> 4) & 0xf, &tmp->state);
tmp->outbuf[tmp->tail++] = decode(b[x] & 0x0f, &tmp->state);
}
for (x=0;x<f->datalen;x++) {
tmp->outbuf[tmp->tail++] = decode((b[x] >> 4) & 0xf, &tmp->state);
tmp->outbuf[tmp->tail++] = decode(b[x] & 0x0f, &tmp->state);
}
if(useplc) plc_rx(&tmp->plc, tmp->outbuf+tmp->tail-f->datalen*2, f->datalen*2);
if(useplc)
plc_rx(&tmp->plc, tmp->outbuf+tmp->tail-f->datalen*2, f->datalen*2);
return 0;
return 0;
}
/*
@ -374,24 +363,23 @@ adpcmtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
* None.
*/
static struct ast_frame *
adpcmtolin_frameout (struct ast_translator_pvt *pvt)
static struct ast_frame *adpcmtolin_frameout(struct ast_translator_pvt *pvt)
{
struct adpcm_decoder_pvt *tmp = (struct adpcm_decoder_pvt *) pvt;
if (!tmp->tail)
return NULL;
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_SLINEAR;
tmp->f.datalen = tmp->tail *2;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail = 0;
return &tmp->f;
struct adpcm_decoder_pvt *tmp = (struct adpcm_decoder_pvt *)pvt;
if (!tmp->tail)
return NULL;
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_SLINEAR;
tmp->f.datalen = tmp->tail * 2;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail = 0;
return &tmp->f;
}
/*
@ -405,22 +393,18 @@ adpcmtolin_frameout (struct ast_translator_pvt *pvt)
* tmp->tail is number of signal values in the input buffer.
*/
static int
lintoadpcm_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
static int lintoadpcm_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
{
struct adpcm_encoder_pvt *tmp = (struct adpcm_encoder_pvt *) pvt;
if ((tmp->tail + f->datalen / 2) < (sizeof (tmp->inbuf) / 2))
{
memcpy (&tmp->inbuf[tmp->tail], f->data, f->datalen);
tmp->tail += f->datalen / 2;
}
else
{
ast_log (LOG_WARNING, "Out of buffer space\n");
return -1;
}
return 0;
struct adpcm_encoder_pvt *tmp = (struct adpcm_encoder_pvt *)pvt;
if ((tmp->tail + f->datalen / 2) < (sizeof(tmp->inbuf) / 2)) {
memcpy(&tmp->inbuf[tmp->tail], f->data, f->datalen);
tmp->tail += f->datalen / 2;
} else {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
return 0;
}
/*
@ -435,54 +419,50 @@ lintoadpcm_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
* Leftover inbuf data gets packed, tail gets updated.
*/
static struct ast_frame *
lintoadpcm_frameout (struct ast_translator_pvt *pvt)
static struct ast_frame *lintoadpcm_frameout(struct ast_translator_pvt *pvt)
{
struct adpcm_encoder_pvt *tmp = (struct adpcm_encoder_pvt *) pvt;
int i_max, i;
if (tmp->tail < 2) return NULL;
i_max = tmp->tail & ~1; /* atomic size is 2 samples */
/* What is this, state debugging? should be #ifdef'd then
tmp->outbuf[0] = tmp->ssindex & 0xff;
tmp->outbuf[1] = (tmp->signal >> 8) & 0xff;
tmp->outbuf[2] = (tmp->signal & 0xff);
tmp->outbuf[3] = tmp->zero_count;
tmp->outbuf[4] = tmp->next_flag;
*/
for (i = 0; i < i_max; i+=2)
{
tmp->outbuf[i/2] =
(adpcm(tmp->inbuf[i ], &tmp->state) << 4) |
(adpcm(tmp->inbuf[i+1], &tmp->state) );
};
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ADPCM;
tmp->f.samples = i_max;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->f.datalen = i_max / 2;
/*
* If there is a signal left over (there should be no more than
* one) move it to the beginning of the input buffer.
*/
if (tmp->tail == i_max)
tmp->tail = 0;
else
{
tmp->inbuf[0] = tmp->inbuf[tmp->tail];
tmp->tail = 1;
}
return &tmp->f;
struct adpcm_encoder_pvt *tmp = (struct adpcm_encoder_pvt *)pvt;
int i_max, i;
if (tmp->tail < 2)
return NULL;
i_max = tmp->tail & ~1; /* atomic size is 2 samples */
/* What is this, state debugging? should be #ifdef'd then
tmp->outbuf[0] = tmp->ssindex & 0xff;
tmp->outbuf[1] = (tmp->signal >> 8) & 0xff;
tmp->outbuf[2] = (tmp->signal & 0xff);
tmp->outbuf[3] = tmp->zero_count;
tmp->outbuf[4] = tmp->next_flag;
*/
for (i = 0; i < i_max; i+=2) {
tmp->outbuf[i/2] =
(adpcm(tmp->inbuf[i ], &tmp->state) << 4) |
(adpcm(tmp->inbuf[i+1], &tmp->state) );
};
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ADPCM;
tmp->f.samples = i_max;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->f.datalen = i_max / 2;
/*
* If there is a signal left over (there should be no more than
* one) move it to the beginning of the input buffer.
*/
if (tmp->tail == i_max)
tmp->tail = 0;
else {
tmp->inbuf[0] = tmp->inbuf[tmp->tail];
tmp->tail = 1;
}
return &tmp->f;
}
@ -490,39 +470,37 @@ lintoadpcm_frameout (struct ast_translator_pvt *pvt)
* AdpcmToLin_Sample
*/
static struct ast_frame *
adpcmtolin_sample (void)
static struct ast_frame *adpcmtolin_sample(void)
{
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ADPCM;
f.datalen = sizeof (adpcm_slin_ex);
f.samples = sizeof(adpcm_slin_ex) * 2;
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = adpcm_slin_ex;
return &f;
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ADPCM;
f.datalen = sizeof(adpcm_slin_ex);
f.samples = sizeof(adpcm_slin_ex) * 2;
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = adpcm_slin_ex;
return &f;
}
/*
* LinToAdpcm_Sample
*/
static struct ast_frame *
lintoadpcm_sample (void)
static struct ast_frame *lintoadpcm_sample(void)
{
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_SLINEAR;
f.datalen = sizeof (slin_adpcm_ex);
/* Assume 8000 Hz */
f.samples = sizeof (slin_adpcm_ex) / 2;
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = slin_adpcm_ex;
return &f;
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_SLINEAR;
f.datalen = sizeof(slin_adpcm_ex);
/* Assume 8000 Hz */
f.samples = sizeof(slin_adpcm_ex) / 2;
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = slin_adpcm_ex;
return &f;
}
/*
@ -536,12 +514,11 @@ lintoadpcm_sample (void)
* None.
*/
static void
adpcm_destroy (struct ast_translator_pvt *pvt)
static void adpcm_destroy(struct ast_translator_pvt *pvt)
{
free (pvt);
localusecnt--;
ast_update_use_count ();
free(pvt);
localusecnt--;
ast_update_use_count();
}
/*
@ -549,15 +526,15 @@ adpcm_destroy (struct ast_translator_pvt *pvt)
*/
static struct ast_translator adpcmtolin = {
"adpcmtolin",
AST_FORMAT_ADPCM,
AST_FORMAT_SLINEAR,
adpcmtolin_new,
adpcmtolin_framein,
adpcmtolin_frameout,
adpcm_destroy,
/* NULL */
adpcmtolin_sample
"adpcmtolin",
AST_FORMAT_ADPCM,
AST_FORMAT_SLINEAR,
adpcmtolin_new,
adpcmtolin_framein,
adpcmtolin_frameout,
adpcm_destroy,
/* NULL */
adpcmtolin_sample
};
/*
@ -565,91 +542,84 @@ static struct ast_translator adpcmtolin = {
*/
static struct ast_translator lintoadpcm = {
"lintoadpcm",
AST_FORMAT_SLINEAR,
AST_FORMAT_ADPCM,
lintoadpcm_new,
lintoadpcm_framein,
lintoadpcm_frameout,
adpcm_destroy,
/* NULL */
lintoadpcm_sample
"lintoadpcm",
AST_FORMAT_SLINEAR,
AST_FORMAT_ADPCM,
lintoadpcm_new,
lintoadpcm_framein,
lintoadpcm_frameout,
adpcm_destroy,
/* NULL */
lintoadpcm_sample
};
static void
parse_config(void)
static void parse_config(void)
{
struct ast_config *cfg;
struct ast_variable *var;
if ((cfg = ast_config_load("codecs.conf"))) {
if ((var = ast_variable_browse(cfg, "plc"))) {
while (var) {
if (!strcasecmp(var->name, "genericplc")) {
useplc = ast_true(var->value) ? 1 : 0;
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "codec_adpcm: %susing generic PLC\n", useplc ? "" : "not ");
}
var = var->next;
}
}
ast_config_destroy(cfg);
}
struct ast_config *cfg;
struct ast_variable *var;
if ((cfg = ast_config_load("codecs.conf"))) {
if ((var = ast_variable_browse(cfg, "plc"))) {
while (var) {
if (!strcasecmp(var->name, "genericplc")) {
useplc = ast_true(var->value) ? 1 : 0;
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "codec_adpcm: %susing generic PLC\n", useplc ? "" : "not ");
}
var = var->next;
}
}
ast_config_destroy(cfg);
}
}
int
reload(void)
int reload(void)
{
parse_config();
return 0;
parse_config();
return 0;
}
int
unload_module (void)
int unload_module(void)
{
int res;
ast_mutex_lock (&localuser_lock);
res = ast_unregister_translator (&lintoadpcm);
if (!res)
res = ast_unregister_translator (&adpcmtolin);
if (localusecnt)
res = -1;
ast_mutex_unlock (&localuser_lock);
return res;
int res;
ast_mutex_lock(&localuser_lock);
res = ast_unregister_translator(&lintoadpcm);
if (!res)
res = ast_unregister_translator(&adpcmtolin);
if (localusecnt)
res = -1;
ast_mutex_unlock(&localuser_lock);
return res;
}
int
load_module (void)
int load_module(void)
{
int res;
parse_config();
res = ast_register_translator (&adpcmtolin);
if (!res)
res = ast_register_translator (&lintoadpcm);
else
ast_unregister_translator (&adpcmtolin);
return res;
int res;
parse_config();
res = ast_register_translator(&adpcmtolin);
if (!res)
res = ast_register_translator(&lintoadpcm);
else
ast_unregister_translator(&adpcmtolin);
return res;
}
/*
* Return a description of this module.
*/
char *
description (void)
char *description(void)
{
return tdesc;
return tdesc;
}
int
usecount (void)
int usecount(void)
{
int res;
STANDARD_USECOUNT (res);
return res;
int res;
STANDARD_USECOUNT(res);
return res;
}
char *
key ()
char *key()
{
return ASTERISK_GPL_KEY;
return ASTERISK_GPL_KEY;
}

387
codecs/codec_alaw.c
Unescape View File

@ -62,10 +62,10 @@ static int useplc = 0;
*/
struct alaw_encoder_pvt
{
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /*!< Space to build offset */
unsigned char outbuf[BUFFER_SIZE]; /*!< Encoded alaw, two nibbles to a word */
int tail;
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /*!< Space to build offset */
unsigned char outbuf[BUFFER_SIZE]; /*!< Encoded alaw, two nibbles to a word */
int tail;
};
/*!
@ -73,11 +73,11 @@ struct alaw_encoder_pvt
*/
struct alaw_decoder_pvt
{
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
short outbuf[BUFFER_SIZE]; /* Decoded signed linear values */
int tail;
plc_state_t plc;
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
short outbuf[BUFFER_SIZE]; /* Decoded signed linear values */
int tail;
plc_state_t plc;
};
/*!
@ -91,19 +91,18 @@ struct alaw_decoder_pvt
* None.
*/
static struct ast_translator_pvt * alawtolin_new (void)
static struct ast_translator_pvt *alawtolin_new(void)
{
struct alaw_decoder_pvt *tmp;
tmp = malloc (sizeof (struct alaw_decoder_pvt));
if (tmp)
{
memset(tmp, 0, sizeof(*tmp));
tmp->tail = 0;
plc_init(&tmp->plc);
localusecnt++;
ast_update_use_count ();
}
return (struct ast_translator_pvt *) tmp;
struct alaw_decoder_pvt *tmp;
tmp = malloc(sizeof(struct alaw_decoder_pvt));
if (tmp) {
memset(tmp, 0, sizeof(*tmp));
tmp->tail = 0;
plc_init(&tmp->plc);
localusecnt++;
ast_update_use_count();
}
return (struct ast_translator_pvt *)tmp;
}
/*!
@ -117,18 +116,17 @@ static struct ast_translator_pvt * alawtolin_new (void)
* None.
*/
static struct ast_translator_pvt * lintoalaw_new (void)
static struct ast_translator_pvt *lintoalaw_new(void)
{
struct alaw_encoder_pvt *tmp;
tmp = malloc (sizeof (struct alaw_encoder_pvt));
if (tmp)
{
memset(tmp, 0, sizeof(*tmp));
localusecnt++;
ast_update_use_count ();
tmp->tail = 0;
}
return (struct ast_translator_pvt *) tmp;
struct alaw_encoder_pvt *tmp;
tmp = malloc(sizeof(struct alaw_encoder_pvt));
if (tmp) {
memset(tmp, 0, sizeof(*tmp));
localusecnt++;
ast_update_use_count();
tmp->tail = 0;
}
return (struct ast_translator_pvt *)tmp;
}
/*!
@ -143,39 +141,39 @@ static struct ast_translator_pvt * lintoalaw_new (void)
* tmp->tail is the number of packed values in the buffer.
*/
static int
alawtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
static int alawtolin_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
{
struct alaw_decoder_pvt *tmp = (struct alaw_decoder_pvt *) pvt;
int x;
unsigned char *b;
if(f->datalen == 0) { /* perform PLC with nominal framesize of 20ms/160 samples */
if((tmp->tail + 160) * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if(useplc) {
plc_fillin(&tmp->plc, tmp->outbuf+tmp->tail, 160);
tmp->tail += 160;
struct alaw_decoder_pvt *tmp = (struct alaw_decoder_pvt *)pvt;
int x;
unsigned char *b;
if(f->datalen == 0) { /* perform PLC with nominal framesize of 20ms/160 samples */
if((tmp->tail + 160) * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if(useplc) {
plc_fillin(&tmp->plc, tmp->outbuf+tmp->tail, 160);
tmp->tail += 160;
}
return 0;
}
return 0;
}
if ((tmp->tail + f->datalen) * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if ((tmp->tail + f->datalen) * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
/* Reset ssindex and signal to frame's specified values */
b = f->data;
for (x=0;x<f->datalen;x++)
tmp->outbuf[tmp->tail + x] = AST_ALAW(b[x]);
/* Reset ssindex and signal to frame's specified values */
b = f->data;
for (x=0;x<f->datalen;x++)
tmp->outbuf[tmp->tail + x] = AST_ALAW(b[x]);
if(useplc) plc_rx(&tmp->plc, tmp->outbuf+tmp->tail, f->datalen);
if(useplc)
plc_rx(&tmp->plc, tmp->outbuf+tmp->tail, f->datalen);
tmp->tail += f->datalen;
return 0;
tmp->tail += f->datalen;
return 0;
}
/*!
@ -190,23 +188,23 @@ alawtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
* None.
*/
static struct ast_frame * alawtolin_frameout (struct ast_translator_pvt *pvt)
static struct ast_frame *alawtolin_frameout(struct ast_translator_pvt *pvt)
{
struct alaw_decoder_pvt *tmp = (struct alaw_decoder_pvt *) pvt;
if (!tmp->tail)
return NULL;
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_SLINEAR;
tmp->f.datalen = tmp->tail *2;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail = 0;
return &tmp->f;
struct alaw_decoder_pvt *tmp = (struct alaw_decoder_pvt *)pvt;
if (!tmp->tail)
return NULL;
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_SLINEAR;
tmp->f.datalen = tmp->tail * 2;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail = 0;
return &tmp->f;
}
/*!
@ -220,21 +218,20 @@ static struct ast_frame * alawtolin_frameout (struct ast_translator_pvt *pvt)
* tmp->tail is number of signal values in the input buffer.
*/
static int lintoalaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
static int lintoalaw_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
{
struct alaw_encoder_pvt *tmp = (struct alaw_encoder_pvt *) pvt;
int x;
short *s;
if (tmp->tail + f->datalen/2 >= sizeof(tmp->outbuf))
{
ast_log (LOG_WARNING, "Out of buffer space\n");
return -1;
}
s = f->data;
for (x=0;x<f->datalen/2;x++)
tmp->outbuf[x+tmp->tail] = AST_LIN2A(s[x]);
tmp->tail += f->datalen/2;
return 0;
struct alaw_encoder_pvt *tmp = (struct alaw_encoder_pvt *)pvt;
int x;
short *s;
if (tmp->tail + f->datalen / 2 >= sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
s = f->data;
for (x=0;x<f->datalen/2;x++)
tmp->outbuf[x+tmp->tail] = AST_LIN2A(s[x]);
tmp->tail += f->datalen/2;
return 0;
}
/*!
@ -249,60 +246,60 @@ static int lintoalaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *
* Leftover inbuf data gets packed, tail gets updated.
*/
static struct ast_frame * lintoalaw_frameout (struct ast_translator_pvt *pvt)
static struct ast_frame *lintoalaw_frameout(struct ast_translator_pvt *pvt)
{
struct alaw_encoder_pvt *tmp = (struct alaw_encoder_pvt *) pvt;
if (tmp->tail) {
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ALAW;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->f.datalen = tmp->tail;
tmp->tail = 0;
return &tmp->f;
} else return NULL;
struct alaw_encoder_pvt *tmp = (struct alaw_encoder_pvt *)pvt;
if (tmp->tail) {
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ALAW;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->f.datalen = tmp->tail;
tmp->tail = 0;
return &tmp->f;
} else
return NULL;
}
/*!
* \brief alawToLin_Sample
*/
static struct ast_frame * alawtolin_sample (void)
static struct ast_frame *alawtolin_sample(void)
{
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ALAW;
f.datalen = sizeof (ulaw_slin_ex);
f.samples = sizeof(ulaw_slin_ex);
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = ulaw_slin_ex;
return &f;
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ALAW;
f.datalen = sizeof(ulaw_slin_ex);
f.samples = sizeof(ulaw_slin_ex);
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = ulaw_slin_ex;
return &f;
}
/*!
* \brief LinToalaw_Sample
*/
static struct ast_frame * lintoalaw_sample (void)
static struct ast_frame *lintoalaw_sample(void)
{
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_SLINEAR;
f.datalen = sizeof (slin_ulaw_ex);
/* Assume 8000 Hz */
f.samples = sizeof (slin_ulaw_ex) / 2;
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = slin_ulaw_ex;
return &f;
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_SLINEAR;
f.datalen = sizeof(slin_ulaw_ex);
/* Assume 8000 Hz */
f.samples = sizeof(slin_ulaw_ex) / 2;
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = slin_ulaw_ex;
return &f;
}
/*!
@ -316,11 +313,11 @@ static struct ast_frame * lintoalaw_sample (void)
* None.
*/
static void alaw_destroy (struct ast_translator_pvt *pvt)
static void alaw_destroy(struct ast_translator_pvt *pvt)
{
free (pvt);
localusecnt--;
ast_update_use_count ();
free(pvt);
localusecnt--;
ast_update_use_count();
}
/*!
@ -328,15 +325,15 @@ static void alaw_destroy (struct ast_translator_pvt *pvt)
*/
static struct ast_translator alawtolin = {
"alawtolin",
AST_FORMAT_ALAW,
AST_FORMAT_SLINEAR,
alawtolin_new,
alawtolin_framein,
alawtolin_frameout,
alaw_destroy,
/* NULL */
alawtolin_sample
"alawtolin",
AST_FORMAT_ALAW,
AST_FORMAT_SLINEAR,
alawtolin_new,
alawtolin_framein,
alawtolin_frameout,
alaw_destroy,
/* NULL */
alawtolin_sample
};
/*!
@ -344,85 +341,85 @@ static struct ast_translator alawtolin = {
*/
static struct ast_translator lintoalaw = {
"lintoalaw",
AST_FORMAT_SLINEAR,
AST_FORMAT_ALAW,
lintoalaw_new,
lintoalaw_framein,
lintoalaw_frameout,
alaw_destroy,
/* NULL */
lintoalaw_sample
"lintoalaw",
AST_FORMAT_SLINEAR,
AST_FORMAT_ALAW,
lintoalaw_new,
lintoalaw_framein,
lintoalaw_frameout,
alaw_destroy,
/* NULL */
lintoalaw_sample
};
static void parse_config(void)
{
struct ast_config *cfg;
struct ast_variable *var;
if ((cfg = ast_config_load("codecs.conf"))) {
if ((var = ast_variable_browse(cfg, "plc"))) {
while (var) {
if (!strcasecmp(var->name, "genericplc")) {
useplc = ast_true(var->value) ? 1 : 0;
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "codec_alaw: %susing generic PLC\n", useplc ? "" : "not ");
}
var = var->next;
}
}
ast_config_destroy(cfg);
}
struct ast_config *cfg;
struct ast_variable *var;
if ((cfg = ast_config_load("codecs.conf"))) {
if ((var = ast_variable_browse(cfg, "plc"))) {
while (var) {
if (!strcasecmp(var->name, "genericplc")) {
useplc = ast_true(var->value) ? 1 : 0;
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "codec_alaw: %susing generic PLC\n", useplc ? "" : "not ");
}
var = var->next;
}
}
ast_config_destroy(cfg);
}
}
int reload(void)
{
parse_config();
return 0;
parse_config();
return 0;
}
int unload_module (void)
int unload_module(void)
{
int res;
ast_mutex_lock (&localuser_lock);
res = ast_unregister_translator (&lintoalaw);
if (!res)
res = ast_unregister_translator (&alawtolin);
if (localusecnt)
res = -1;
ast_mutex_unlock (&localuser_lock);
return res;
int res;
ast_mutex_lock(&localuser_lock);
res = ast_unregister_translator(&lintoalaw);
if (!res)
res = ast_unregister_translator(&alawtolin);
if (localusecnt)
res = -1;
ast_mutex_unlock(&localuser_lock);
return res;
}
int load_module (void)
int load_module(void)
{
int res;
parse_config();
res = ast_register_translator (&alawtolin);
if (!res)
res = ast_register_translator (&lintoalaw);
else
ast_unregister_translator (&alawtolin);
return res;
int res;
parse_config();
res = ast_register_translator(&alawtolin);
if (!res)
res = ast_register_translator(&lintoalaw);
else
ast_unregister_translator(&alawtolin);
return res;
}
/*
* Return a description of this module.
*/
char * description (void)
char *description(void)
{
return tdesc;
return tdesc;
}
int usecount (void)
int usecount(void)
{
int res;
STANDARD_USECOUNT (res);
return res;
int res;
STANDARD_USECOUNT(res);
return res;
}
char * key ()
char *key()
{
return ASTERISK_GPL_KEY;
return ASTERISK_GPL_KEY;
}

454
codecs/codec_ulaw.c
Unescape View File

@ -57,33 +57,33 @@ static int useplc = 0;
#include "slin_ulaw_ex.h"
#include "ulaw_slin_ex.h"
/*
* Private workspace for translating signed linear signals to ulaw.
/*!
* \brief Private workspace for translating signed linear signals to ulaw.
*/
struct ulaw_encoder_pvt
{
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
unsigned char outbuf[BUFFER_SIZE]; /* Encoded ulaw, two nibbles to a word */
int tail;
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /*!< Space to build offset */
unsigned char outbuf[BUFFER_SIZE]; /*!< Encoded ulaw, two nibbles to a word */
int tail;
};
/*
* Private workspace for translating ulaw signals to signed linear.
/*!
* \brief Private workspace for translating ulaw signals to signed linear.
*/
struct ulaw_decoder_pvt
{
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
short outbuf[BUFFER_SIZE]; /* Decoded signed linear values */
int tail;
plc_state_t plc;
struct ast_frame f;
char offset[AST_FRIENDLY_OFFSET]; /* Space to build offset */
short outbuf[BUFFER_SIZE]; /* Decoded signed linear values */
int tail;
plc_state_t plc;
};
/*
* ulawToLin_New
/*!
* \brief ulawToLin_New
* Create a new instance of ulaw_decoder_pvt.
*
* Results:
@ -93,24 +93,22 @@ struct ulaw_decoder_pvt
* None.
*/
static struct ast_translator_pvt *
ulawtolin_new (void)
static struct ast_translator_pvt *ulawtolin_new(void)
{
struct ulaw_decoder_pvt *tmp;
tmp = malloc (sizeof (struct ulaw_decoder_pvt));
if (tmp)
{
memset(tmp, 0, sizeof(*tmp));
tmp->tail = 0;
plc_init(&tmp->plc);
localusecnt++;
ast_update_use_count ();
}
return (struct ast_translator_pvt *) tmp;
struct ulaw_decoder_pvt *tmp;
tmp = malloc(sizeof(struct ulaw_decoder_pvt));
if (tmp) {
memset(tmp, 0, sizeof(*tmp));
tmp->tail = 0;
plc_init(&tmp->plc);
localusecnt++;
ast_update_use_count();
}
return (struct ast_translator_pvt *)tmp;
}
/*
* LinToulaw_New
/*!
* \brief LinToulaw_New
* Create a new instance of ulaw_encoder_pvt.
*
* Results:
@ -120,23 +118,21 @@ ulawtolin_new (void)
* None.
*/
static struct ast_translator_pvt *
lintoulaw_new (void)
static struct ast_translator_pvt *lintoulaw_new(void)
{
struct ulaw_encoder_pvt *tmp;
tmp = malloc (sizeof (struct ulaw_encoder_pvt));
if (tmp)
{
memset(tmp, 0, sizeof(*tmp));
localusecnt++;
ast_update_use_count ();
tmp->tail = 0;
}
return (struct ast_translator_pvt *) tmp;
struct ulaw_encoder_pvt *tmp;
tmp = malloc(sizeof(struct ulaw_encoder_pvt));
if (tmp) {
memset(tmp, 0, sizeof(*tmp));
localusecnt++;
ast_update_use_count();
tmp->tail = 0;
}
return (struct ast_translator_pvt *)tmp;
}
/*
* ulawToLin_FrameIn
/*!
* \brief ulawToLin_FrameIn
* Fill an input buffer with packed 4-bit ulaw values if there is room
* left.
*
@ -147,43 +143,43 @@ lintoulaw_new (void)
* tmp->tail is the number of packed values in the buffer.
*/
static int
ulawtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
static int ulawtolin_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
{
struct ulaw_decoder_pvt *tmp = (struct ulaw_decoder_pvt *) pvt;
int x;
unsigned char *b;
if(f->datalen == 0) { /* perform PLC with nominal framesize of 20ms/160 samples */
if((tmp->tail + 160) * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if(useplc) {
plc_fillin(&tmp->plc, tmp->outbuf+tmp->tail, 160);
tmp->tail += 160;
struct ulaw_decoder_pvt *tmp = (struct ulaw_decoder_pvt *)pvt;
int x;
unsigned char *b;
if(f->datalen == 0) { /* perform PLC with nominal framesize of 20ms/160 samples */
if((tmp->tail + 160) * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if(useplc) {
plc_fillin(&tmp->plc, tmp->outbuf+tmp->tail, 160);
tmp->tail += 160;
}
return 0;
}
return 0;
}
if ((tmp->tail + f->datalen) * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
if ((tmp->tail + f->datalen) * 2 > sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
/* Reset ssindex and signal to frame's specified values */
b = f->data;
for (x=0;x<f->datalen;x++)
tmp->outbuf[tmp->tail + x] = AST_MULAW(b[x]);
/* Reset ssindex and signal to frame's specified values */
b = f->data;
for (x=0;x<f->datalen;x++)
tmp->outbuf[tmp->tail + x] = AST_MULAW(b[x]);
if(useplc) plc_rx(&tmp->plc, tmp->outbuf+tmp->tail, f->datalen);
if(useplc)
plc_rx(&tmp->plc, tmp->outbuf+tmp->tail, f->datalen);
tmp->tail += f->datalen;
return 0;
tmp->tail += f->datalen;
return 0;
}
/*
* ulawToLin_FrameOut
/*!
* \brief ulawToLin_FrameOut
* Convert 4-bit ulaw encoded signals to 16-bit signed linear.
*
* Results:
@ -194,28 +190,27 @@ ulawtolin_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
* None.
*/
static struct ast_frame *
ulawtolin_frameout (struct ast_translator_pvt *pvt)
static struct ast_frame *ulawtolin_frameout(struct ast_translator_pvt *pvt)
{
struct ulaw_decoder_pvt *tmp = (struct ulaw_decoder_pvt *) pvt;
if (!tmp->tail)
return NULL;
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_SLINEAR;
tmp->f.datalen = tmp->tail *2;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail = 0;
return &tmp->f;
struct ulaw_decoder_pvt *tmp = (struct ulaw_decoder_pvt *)pvt;
if (!tmp->tail)
return NULL;
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_SLINEAR;
tmp->f.datalen = tmp->tail * 2;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail = 0;
return &tmp->f;
}
/*
* LinToulaw_FrameIn
/*!
* \brief LinToulaw_FrameIn
* Fill an input buffer with 16-bit signed linear PCM values.
*
* Results:
@ -225,26 +220,24 @@ ulawtolin_frameout (struct ast_translator_pvt *pvt)
* tmp->tail is number of signal values in the input buffer.
*/
static int
lintoulaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
static int lintoulaw_framein(struct ast_translator_pvt *pvt, struct ast_frame *f)
{
struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *) pvt;
int x;
short *s;
if (tmp->tail + f->datalen/2 >= sizeof(tmp->outbuf))
{
ast_log (LOG_WARNING, "Out of buffer space\n");
return -1;
}
s = f->data;
for (x=0;x<f->datalen/2;x++)
tmp->outbuf[x+tmp->tail] = AST_LIN2MU(s[x]);
tmp->tail += f->datalen/2;
return 0;
struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *)pvt;
int x;
short *s;
if (tmp->tail + f->datalen / 2 >= sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
s = f->data;
for (x=0;x<f->datalen/2;x++)
tmp->outbuf[x+tmp->tail] = AST_LIN2MU(s[x]);
tmp->tail += f->datalen/2;
return 0;
}
/*
* LinToulaw_FrameOut
/*!
* \brief LinToulaw_FrameOut
* Convert a buffer of raw 16-bit signed linear PCM to a buffer
* of 4-bit ulaw packed two to a byte (Big Endian).
*
@ -255,67 +248,65 @@ lintoulaw_framein (struct ast_translator_pvt *pvt, struct ast_frame *f)
* Leftover inbuf data gets packed, tail gets updated.
*/
static struct ast_frame *
lintoulaw_frameout (struct ast_translator_pvt *pvt)
static struct ast_frame *lintoulaw_frameout(struct ast_translator_pvt *pvt)
{
struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *) pvt;
if (tmp->tail) {
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ULAW;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->f.datalen = tmp->tail;
tmp->tail = 0;
return &tmp->f;
} else return NULL;
struct ulaw_encoder_pvt *tmp = (struct ulaw_encoder_pvt *)pvt;
if (tmp->tail) {
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_ULAW;
tmp->f.samples = tmp->tail;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->f.datalen = tmp->tail;
tmp->tail = 0;
return &tmp->f;
} else
return NULL;
}
/*
* ulawToLin_Sample
/*!
* \brief ulawToLin_Sample
*/
static struct ast_frame *
ulawtolin_sample (void)
static struct ast_frame *ulawtolin_sample(void)
{
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ULAW;
f.datalen = sizeof (ulaw_slin_ex);
f.samples = sizeof(ulaw_slin_ex);
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = ulaw_slin_ex;
return &f;
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_ULAW;
f.datalen = sizeof(ulaw_slin_ex);
f.samples = sizeof(ulaw_slin_ex);
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = ulaw_slin_ex;
return &f;
}
/*
* LinToulaw_Sample
/*!
* \brief LinToulaw_Sample
*/
static struct ast_frame *
lintoulaw_sample (void)
static struct ast_frame *lintoulaw_sample(void)
{
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_SLINEAR;
f.datalen = sizeof (slin_ulaw_ex);
/* Assume 8000 Hz */
f.samples = sizeof (slin_ulaw_ex) / 2;
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = slin_ulaw_ex;
return &f;
static struct ast_frame f;
f.frametype = AST_FRAME_VOICE;
f.subclass = AST_FORMAT_SLINEAR;
f.datalen = sizeof(slin_ulaw_ex);
/* Assume 8000 Hz */
f.samples = sizeof(slin_ulaw_ex) / 2;
f.mallocd = 0;
f.offset = 0;
f.src = __PRETTY_FUNCTION__;
f.data = slin_ulaw_ex;
return &f;
}
/*
* ulaw_Destroy
/*!
* \brief ulaw_Destroy
* Destroys a private workspace.
*
* Results:
@ -325,121 +316,112 @@ lintoulaw_sample (void)
* None.
*/
static void
ulaw_destroy (struct ast_translator_pvt *pvt)
static void ulaw_destroy(struct ast_translator_pvt *pvt)
{
free (pvt);
localusecnt--;
ast_update_use_count ();
free(pvt);
localusecnt--;
ast_update_use_count();
}
/*
* The complete translator for ulawToLin.
/*!
* \brief The complete translator for ulawToLin.
*/
static struct ast_translator ulawtolin = {
"ulawtolin",
AST_FORMAT_ULAW,
AST_FORMAT_SLINEAR,
ulawtolin_new,
ulawtolin_framein,
ulawtolin_frameout,
ulaw_destroy,
/* NULL */
ulawtolin_sample
"ulawtolin",
AST_FORMAT_ULAW,
AST_FORMAT_SLINEAR,
ulawtolin_new,
ulawtolin_framein,
ulawtolin_frameout,
ulaw_destroy,
/* NULL */
ulawtolin_sample
};
/*
* The complete translator for LinToulaw.
/*!
* \brief The complete translator for LinToulaw.
*/
static struct ast_translator lintoulaw = {
"lintoulaw",
AST_FORMAT_SLINEAR,
AST_FORMAT_ULAW,
lintoulaw_new,
lintoulaw_framein,
lintoulaw_frameout,
ulaw_destroy,
/* NULL */
lintoulaw_sample
"lintoulaw",
AST_FORMAT_SLINEAR,
AST_FORMAT_ULAW,
lintoulaw_new,
lintoulaw_framein,
lintoulaw_frameout,
ulaw_destroy,
/* NULL */
lintoulaw_sample
};
static void
parse_config(void)
static void parse_config(void)
{
struct ast_config *cfg;
struct ast_variable *var;
if ((cfg = ast_config_load("codecs.conf"))) {
if ((var = ast_variable_browse(cfg, "plc"))) {
while (var) {
if (!strcasecmp(var->name, "genericplc")) {
useplc = ast_true(var->value) ? 1 : 0;
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "codec_ulaw: %susing generic PLC\n", useplc ? "" : "not ");
struct ast_config *cfg;
struct ast_variable *var;
if ((cfg = ast_config_load("codecs.conf"))) {
if ((var = ast_variable_browse(cfg, "plc"))) {
while (var) {
if (!strcasecmp(var->name, "genericplc")) {
useplc = ast_true(var->value) ? 1 : 0;
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "codec_ulaw: %susing generic PLC\n", useplc ? "" : "not ");
}
var = var->next;
}
}
ast_config_destroy(cfg);
}
var = var->next;
}
}
ast_config_destroy(cfg);
}
}
int
reload(void)
int reload(void)
{
parse_config();
return 0;
parse_config();
return 0;
}
int
unload_module (void)
int unload_module(void)
{
int res;
ast_mutex_lock (&localuser_lock);
res = ast_unregister_translator (&lintoulaw);
if (!res)
res = ast_unregister_translator (&ulawtolin);
if (localusecnt)
res = -1;
ast_mutex_unlock (&localuser_lock);
return res;
int res;
ast_mutex_lock(&localuser_lock);
res = ast_unregister_translator(&lintoulaw);
if (!res)
res = ast_unregister_translator(&ulawtolin);
if (localusecnt)
res = -1;
ast_mutex_unlock(&localuser_lock);
return res;
}
int
load_module (void)
int load_module(void)
{
int res;
parse_config();
res = ast_register_translator (&ulawtolin);
if (!res)
res = ast_register_translator (&lintoulaw);
else
ast_unregister_translator (&ulawtolin);
return res;
int res;
parse_config();
res = ast_register_translator(&ulawtolin);
if (!res)
res = ast_register_translator(&lintoulaw);
else
ast_unregister_translator(&ulawtolin);
return res;
}
/*
* Return a description of this module.
*/
char *
description (void)
char *description(void)
{
return tdesc;
return tdesc;
}
int
usecount (void)
int usecount(void)
{
int res;
STANDARD_USECOUNT (res);
return res;
int res;
STANDARD_USECOUNT(res);
return res;
}
char *
key ()
char *key()
{
return ASTERISK_GPL_KEY;
return ASTERISK_GPL_KEY;
}

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