mirror of
https://github.com/asterisk/asterisk.git
synced 2025-11-02 20:08:17 +00:00
Largely simplify format handlers (for file copy etc.)
collecting common functions in a single place and removing them from the individual handlers. The full description is on mantis, http://bugs.digium.com/view.php?id=6375 and only the ogg_vorbis handler needs to be converted to the new structure. As a result of this change, format_au.c and format_pcm_alaw.c should go away (in a separate commit) as their functionality (trivial) has been merged in another file. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@17243 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Luigi Rizzo
@@ -45,135 +45,67 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
||||
#include "asterisk/module.h"
|
||||
#include "asterisk/endian.h"
|
||||
#include "asterisk/ulaw.h"
|
||||
#include "asterisk/alaw.h"
|
||||
|
||||
#define BUF_SIZE 160 /* 160 samples */
|
||||
|
||||
struct ast_filestream {
|
||||
void *reserved[AST_RESERVED_POINTERS];
|
||||
/* This is what a filestream means to us */
|
||||
FILE *f; /* Descriptor */
|
||||
struct ast_channel *owner;
|
||||
struct ast_frame fr; /* Frame information */
|
||||
char waste[AST_FRIENDLY_OFFSET]; /* Buffer for sending frames, etc */
|
||||
char empty; /* Empty character */
|
||||
unsigned char buf[BUF_SIZE]; /* Output Buffer */
|
||||
struct timeval last;
|
||||
};
|
||||
|
||||
|
||||
AST_MUTEX_DEFINE_STATIC(pcm_lock);
|
||||
static int glistcnt = 0;
|
||||
|
||||
static char *name = "pcm";
|
||||
static char *desc = "Raw uLaw 8khz Audio support (PCM)";
|
||||
static char *exts = "pcm|ulaw|ul|mu";
|
||||
#define BUF_SIZE 160 /* 160 bytes, and same number of samples */
|
||||
|
||||
static char ulaw_silence[BUF_SIZE];
|
||||
static char alaw_silence[BUF_SIZE];
|
||||
|
||||
static struct ast_filestream *pcm_open(FILE *f)
|
||||
/* #define REALTIME_WRITE */ /* XXX does it work at all ? */
|
||||
|
||||
#ifdef REALTIME_WRITE
|
||||
struct pcm_desc {
|
||||
unsigned long start_time;
|
||||
};
|
||||
|
||||
/* Returns time in msec since system boot. */
|
||||
static unsigned long get_time(void)
|
||||
{
|
||||
/* We don't have any header to read or anything really, but
|
||||
if we did, it would go here. We also might want to check
|
||||
and be sure it's a valid file. */
|
||||
struct ast_filestream *tmp;
|
||||
if ((tmp = malloc(sizeof(struct ast_filestream)))) {
|
||||
memset(tmp, 0, sizeof(struct ast_filestream));
|
||||
if (ast_mutex_lock(&pcm_lock)) {
|
||||
ast_log(LOG_WARNING, "Unable to lock pcm list\n");
|
||||
free(tmp);
|
||||
return NULL;
|
||||
}
|
||||
tmp->f = f;
|
||||
tmp->fr.data = tmp->buf;
|
||||
tmp->fr.frametype = AST_FRAME_VOICE;
|
||||
tmp->fr.subclass = AST_FORMAT_ULAW;
|
||||
/* datalen will vary for each frame */
|
||||
tmp->fr.src = name;
|
||||
tmp->fr.mallocd = 0;
|
||||
glistcnt++;
|
||||
ast_mutex_unlock(&pcm_lock);
|
||||
ast_update_use_count();
|
||||
struct tms buf;
|
||||
clock_t cur;
|
||||
|
||||
cur = times( &buf );
|
||||
if( cur < 0 ) {
|
||||
ast_log( LOG_WARNING, "Cannot get current time\n" );
|
||||
return 0;
|
||||
}
|
||||
return tmp;
|
||||
return cur * 1000 / sysconf( _SC_CLK_TCK );
|
||||
}
|
||||
|
||||
static struct ast_filestream *pcm_rewrite(FILE *f, const char *comment)
|
||||
static int pcma_open(struct ast_filestream *s)
|
||||
{
|
||||
/* We don't have any header to read or anything really, but
|
||||
if we did, it would go here. We also might want to check
|
||||
and be sure it's a valid file. */
|
||||
struct ast_filestream *tmp;
|
||||
if ((tmp = malloc(sizeof(struct ast_filestream)))) {
|
||||
memset(tmp, 0, sizeof(struct ast_filestream));
|
||||
if (ast_mutex_lock(&pcm_lock)) {
|
||||
ast_log(LOG_WARNING, "Unable to lock pcm list\n");
|
||||
free(tmp);
|
||||
return NULL;
|
||||
}
|
||||
tmp->f = f;
|
||||
glistcnt++;
|
||||
ast_mutex_unlock(&pcm_lock);
|
||||
ast_update_use_count();
|
||||
} else
|
||||
ast_log(LOG_WARNING, "Out of memory\n");
|
||||
return tmp;
|
||||
if (s->fmt->format == AST_FORMAT_ALAW)
|
||||
pd->starttime = get_time();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void pcm_close(struct ast_filestream *s)
|
||||
static int pcma_rewrite(struct ast_filestream *s, const char *comment)
|
||||
{
|
||||
if (ast_mutex_lock(&pcm_lock)) {
|
||||
ast_log(LOG_WARNING, "Unable to lock pcm list\n");
|
||||
return;
|
||||
}
|
||||
glistcnt--;
|
||||
ast_mutex_unlock(&pcm_lock);
|
||||
ast_update_use_count();
|
||||
fclose(s->f);
|
||||
free(s);
|
||||
s = NULL;
|
||||
return pcma_open(s);
|
||||
}
|
||||
#endif
|
||||
|
||||
static struct ast_frame *pcm_read(struct ast_filestream *s, int *whennext)
|
||||
{
|
||||
int res;
|
||||
int delay;
|
||||
|
||||
/* Send a frame from the file to the appropriate channel */
|
||||
|
||||
s->fr.frametype = AST_FRAME_VOICE;
|
||||
s->fr.subclass = AST_FORMAT_ULAW;
|
||||
s->fr.offset = AST_FRIENDLY_OFFSET;
|
||||
s->fr.subclass = s->fmt->format;
|
||||
s->fr.mallocd = 0;
|
||||
s->fr.data = s->buf;
|
||||
if ((res = fread(s->buf, 1, BUF_SIZE, s->f)) < 1) {
|
||||
FR_SET_BUF(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
|
||||
if ((res = fread(s->fr.data, 1, s->fr.datalen, s->f)) < 1) {
|
||||
if (res)
|
||||
ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
|
||||
return NULL;
|
||||
}
|
||||
s->fr.samples = res;
|
||||
s->fr.datalen = res;
|
||||
delay = s->fr.samples;
|
||||
*whennext = delay;
|
||||
*whennext = s->fr.samples = res;
|
||||
return &s->fr;
|
||||
}
|
||||
|
||||
static int pcm_write(struct ast_filestream *fs, struct ast_frame *f)
|
||||
{
|
||||
int res;
|
||||
if (f->frametype != AST_FRAME_VOICE) {
|
||||
ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
|
||||
return -1;
|
||||
}
|
||||
if (f->subclass != AST_FORMAT_ULAW) {
|
||||
ast_log(LOG_WARNING, "Asked to write non-ulaw frame (%d)!\n", f->subclass);
|
||||
return -1;
|
||||
}
|
||||
if ((res = fwrite(f->data, 1, f->datalen, fs->f)) != f->datalen) {
|
||||
ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pcm_seek(struct ast_filestream *fs, off_t sample_offset, int whence)
|
||||
{
|
||||
off_t cur, max, offset = 0;
|
||||
@@ -204,13 +136,13 @@ static int pcm_seek(struct ast_filestream *fs, off_t sample_offset, int whence)
|
||||
}
|
||||
if (whence == SEEK_FORCECUR && offset > max) { /* extend the file */
|
||||
size_t left = offset - max;
|
||||
const char *src = (fs->fmt->format == AST_FORMAT_ALAW) ? alaw_silence : ulaw_silence;
|
||||
|
||||
while (left) {
|
||||
size_t written = fwrite(ulaw_silence, sizeof(ulaw_silence[0]),
|
||||
(left > BUF_SIZE) ? BUF_SIZE : left, fs->f);
|
||||
size_t written = fwrite(src, 1, (left > BUF_SIZE) ? BUF_SIZE : left, fs->f);
|
||||
if (written == -1)
|
||||
break; /* error */
|
||||
left -= written * sizeof(ulaw_silence[0]);
|
||||
left -= written;
|
||||
}
|
||||
ret = 0; /* successful */
|
||||
} else {
|
||||
@@ -230,51 +162,336 @@ static int pcm_trunc(struct ast_filestream *fs)
|
||||
|
||||
static off_t pcm_tell(struct ast_filestream *fs)
|
||||
{
|
||||
off_t offset;
|
||||
offset = ftello(fs->f);
|
||||
return offset;
|
||||
return ftello(fs->f);
|
||||
}
|
||||
|
||||
static char *pcm_getcomment(struct ast_filestream *s)
|
||||
static int pcm_write(struct ast_filestream *fs, struct ast_frame *f)
|
||||
{
|
||||
return NULL;
|
||||
int res;
|
||||
|
||||
if (f->frametype != AST_FRAME_VOICE) {
|
||||
ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
|
||||
return -1;
|
||||
}
|
||||
if (f->subclass != fs->fmt->format) {
|
||||
ast_log(LOG_WARNING, "Asked to write incompatible format frame (%d)!\n", f->subclass);
|
||||
return -1;
|
||||
}
|
||||
|
||||
#ifdef REALTIME_WRITE
|
||||
if (s->fmt->format == AST_FORMAT_ALAW) {
|
||||
struct pcm_desc *pd = (struct pcm_desc *)fs->private;
|
||||
struct stat stat_buf;
|
||||
unsigned long cur_time = get_time();
|
||||
unsigned long fpos = ( cur_time - pd->start_time ) * 8; /* 8 bytes per msec */
|
||||
/* Check if we have written to this position yet. If we have, then increment pos by one frame
|
||||
* for some degree of protection against receiving packets in the same clock tick.
|
||||
*/
|
||||
|
||||
fstat(fileno(fs->f), &stat_buf );
|
||||
if (stat_buf.st_size > fpos )
|
||||
fpos += f->datalen; /* Incrementing with the size of this current frame */
|
||||
|
||||
if (stat_buf.st_size < fpos) {
|
||||
/* fill the gap with 0x55 rather than 0. */
|
||||
char buf[1024];
|
||||
unsigned long cur, to_write;
|
||||
|
||||
cur = stat_buf.st_size;
|
||||
if (fseek(fs->f, cur, SEEK_SET) < 0) {
|
||||
ast_log( LOG_WARNING, "Cannot seek in file: %s\n", strerror(errno) );
|
||||
return -1;
|
||||
}
|
||||
memset(buf, 0x55, 512);
|
||||
while (cur < fpos) {
|
||||
to_write = fpos - cur;
|
||||
if (to_write > sizeof(buf))
|
||||
to_write = sizeof(buf);
|
||||
fwrite(buf, 1, to_write, fs->f);
|
||||
cur += to_write;
|
||||
}
|
||||
}
|
||||
|
||||
if (fseek(s->f, fpos, SEEK_SET) < 0) {
|
||||
ast_log( LOG_WARNING, "Cannot seek in file: %s\n", strerror(errno) );
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
#endif /* REALTIME_WRITE */
|
||||
|
||||
if ((res = fwrite(f->data, 1, f->datalen, fs->f)) != f->datalen) {
|
||||
ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* SUN .au support routines */
|
||||
|
||||
#define AU_HEADER_SIZE 24
|
||||
#define AU_HEADER(var) u_int32_t var[6]
|
||||
|
||||
#define AU_HDR_MAGIC_OFF 0
|
||||
#define AU_HDR_HDR_SIZE_OFF 1
|
||||
#define AU_HDR_DATA_SIZE_OFF 2
|
||||
#define AU_HDR_ENCODING_OFF 3
|
||||
#define AU_HDR_SAMPLE_RATE_OFF 4
|
||||
#define AU_HDR_CHANNELS_OFF 5
|
||||
|
||||
#define AU_ENC_8BIT_ULAW 1
|
||||
|
||||
#define AU_MAGIC 0x2e736e64
|
||||
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||
#define htoll(b) (b)
|
||||
#define htols(b) (b)
|
||||
#define ltohl(b) (b)
|
||||
#define ltohs(b) (b)
|
||||
#else
|
||||
#if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||
#define htoll(b) \
|
||||
(((((b) ) & 0xFF) << 24) | \
|
||||
((((b) >> 8) & 0xFF) << 16) | \
|
||||
((((b) >> 16) & 0xFF) << 8) | \
|
||||
((((b) >> 24) & 0xFF) ))
|
||||
#define htols(b) \
|
||||
(((((b) ) & 0xFF) << 8) | \
|
||||
((((b) >> 8) & 0xFF) ))
|
||||
#define ltohl(b) htoll(b)
|
||||
#define ltohs(b) htols(b)
|
||||
#else
|
||||
#error "Endianess not defined"
|
||||
#endif
|
||||
#endif
|
||||
|
||||
static int check_header(FILE *f)
|
||||
{
|
||||
AU_HEADER(header);
|
||||
u_int32_t magic;
|
||||
u_int32_t hdr_size;
|
||||
u_int32_t data_size;
|
||||
u_int32_t encoding;
|
||||
u_int32_t sample_rate;
|
||||
u_int32_t channels;
|
||||
|
||||
if (fread(header, 1, AU_HEADER_SIZE, f) != AU_HEADER_SIZE) {
|
||||
ast_log(LOG_WARNING, "Read failed (header)\n");
|
||||
return -1;
|
||||
}
|
||||
magic = ltohl(header[AU_HDR_MAGIC_OFF]);
|
||||
if (magic != (u_int32_t) AU_MAGIC) {
|
||||
ast_log(LOG_WARNING, "Bad magic: 0x%x\n", magic);
|
||||
}
|
||||
/* hdr_size = ltohl(header[AU_HDR_HDR_SIZE_OFF]);
|
||||
if (hdr_size < AU_HEADER_SIZE)*/
|
||||
hdr_size = AU_HEADER_SIZE;
|
||||
/* data_size = ltohl(header[AU_HDR_DATA_SIZE_OFF]); */
|
||||
encoding = ltohl(header[AU_HDR_ENCODING_OFF]);
|
||||
if (encoding != AU_ENC_8BIT_ULAW) {
|
||||
ast_log(LOG_WARNING, "Unexpected format: %d. Only 8bit ULAW allowed (%d)\n", encoding, AU_ENC_8BIT_ULAW);
|
||||
return -1;
|
||||
}
|
||||
sample_rate = ltohl(header[AU_HDR_SAMPLE_RATE_OFF]);
|
||||
if (sample_rate != DEFAULT_SAMPLE_RATE) {
|
||||
ast_log(LOG_WARNING, "Sample rate can only be 8000 not %d\n", sample_rate);
|
||||
return -1;
|
||||
}
|
||||
channels = ltohl(header[AU_HDR_CHANNELS_OFF]);
|
||||
if (channels != 1) {
|
||||
ast_log(LOG_WARNING, "Not in mono: channels=%d\n", channels);
|
||||
return -1;
|
||||
}
|
||||
/* Skip to data */
|
||||
fseek(f, 0, SEEK_END);
|
||||
data_size = ftell(f) - hdr_size;
|
||||
if (fseek(f, hdr_size, SEEK_SET) == -1 ) {
|
||||
ast_log(LOG_WARNING, "Failed to skip to data: %d\n", hdr_size);
|
||||
return -1;
|
||||
}
|
||||
return data_size;
|
||||
}
|
||||
|
||||
static int update_header(FILE *f)
|
||||
{
|
||||
off_t cur, end;
|
||||
u_int32_t datalen;
|
||||
int bytes;
|
||||
|
||||
cur = ftell(f);
|
||||
fseek(f, 0, SEEK_END);
|
||||
end = ftell(f);
|
||||
/* data starts 24 bytes in */
|
||||
bytes = end - AU_HEADER_SIZE;
|
||||
datalen = htoll(bytes);
|
||||
|
||||
if (cur < 0) {
|
||||
ast_log(LOG_WARNING, "Unable to find our position\n");
|
||||
return -1;
|
||||
}
|
||||
if (fseek(f, AU_HDR_DATA_SIZE_OFF * sizeof(u_int32_t), SEEK_SET)) {
|
||||
ast_log(LOG_WARNING, "Unable to set our position\n");
|
||||
return -1;
|
||||
}
|
||||
if (fwrite(&datalen, 1, sizeof(datalen), f) != sizeof(datalen)) {
|
||||
ast_log(LOG_WARNING, "Unable to set write file size\n");
|
||||
return -1;
|
||||
}
|
||||
if (fseek(f, cur, SEEK_SET)) {
|
||||
ast_log(LOG_WARNING, "Unable to return to position\n");
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int write_header(FILE *f)
|
||||
{
|
||||
AU_HEADER(header);
|
||||
|
||||
header[AU_HDR_MAGIC_OFF] = htoll((u_int32_t) AU_MAGIC);
|
||||
header[AU_HDR_HDR_SIZE_OFF] = htoll(AU_HEADER_SIZE);
|
||||
header[AU_HDR_DATA_SIZE_OFF] = 0;
|
||||
header[AU_HDR_ENCODING_OFF] = htoll(AU_ENC_8BIT_ULAW);
|
||||
header[AU_HDR_SAMPLE_RATE_OFF] = htoll(DEFAULT_SAMPLE_RATE);
|
||||
header[AU_HDR_CHANNELS_OFF] = htoll(1);
|
||||
|
||||
/* Write an au header, ignoring sizes which will be filled in later */
|
||||
fseek(f, 0, SEEK_SET);
|
||||
if (fwrite(header, 1, AU_HEADER_SIZE, f) != AU_HEADER_SIZE) {
|
||||
ast_log(LOG_WARNING, "Unable to write header\n");
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int au_open(struct ast_filestream *s)
|
||||
{
|
||||
if (check_header(s->f) < 0)
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int au_rewrite(struct ast_filestream *s, const char *comment)
|
||||
{
|
||||
if (write_header(s->f))
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* XXX check this, probably incorrect */
|
||||
static int au_seek(struct ast_filestream *fs, off_t sample_offset, int whence)
|
||||
{
|
||||
off_t min, max, cur;
|
||||
long offset = 0, samples;
|
||||
|
||||
samples = sample_offset;
|
||||
min = AU_HEADER_SIZE;
|
||||
cur = ftello(fs->f);
|
||||
fseek(fs->f, 0, SEEK_END);
|
||||
max = ftello(fs->f);
|
||||
if (whence == SEEK_SET)
|
||||
offset = samples + min;
|
||||
else if (whence == SEEK_CUR || whence == SEEK_FORCECUR)
|
||||
offset = samples + cur;
|
||||
else if (whence == SEEK_END)
|
||||
offset = max - samples;
|
||||
if (whence != SEEK_FORCECUR) {
|
||||
offset = (offset > max) ? max : offset;
|
||||
}
|
||||
/* always protect the header space. */
|
||||
offset = (offset < min) ? min : offset;
|
||||
return fseeko(fs->f, offset, SEEK_SET);
|
||||
}
|
||||
|
||||
static int au_trunc(struct ast_filestream *fs)
|
||||
{
|
||||
if (ftruncate(fileno(fs->f), ftell(fs->f)))
|
||||
return -1;
|
||||
return update_header(fs->f);
|
||||
}
|
||||
|
||||
static off_t au_tell(struct ast_filestream *fs)
|
||||
{
|
||||
off_t offset = ftello(fs->f);
|
||||
return offset - AU_HEADER_SIZE;
|
||||
}
|
||||
|
||||
static struct ast_format_lock me = { .usecnt = -1 };
|
||||
|
||||
static const struct ast_format alaw_f = {
|
||||
.name = "alaw",
|
||||
.exts = "alaw|al",
|
||||
.format = AST_FORMAT_ALAW,
|
||||
.write = pcm_write,
|
||||
.seek = pcm_seek,
|
||||
.trunc = pcm_trunc,
|
||||
.tell = pcm_tell,
|
||||
.read = pcm_read,
|
||||
.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
|
||||
.lockp = &me,
|
||||
#ifdef REALTIME_WRITE
|
||||
.open = pcma_open,
|
||||
.rewrite = pcma_rewrite,
|
||||
.desc_size = sizeof(struct pcm_desc),
|
||||
#endif
|
||||
};
|
||||
|
||||
static const struct ast_format pcm_f = {
|
||||
.name = "pcm",
|
||||
.exts = "pcm|ulaw|ul|mu",
|
||||
.format = AST_FORMAT_ULAW,
|
||||
.write = pcm_write,
|
||||
.seek = pcm_seek,
|
||||
.trunc = pcm_trunc,
|
||||
.tell = pcm_tell,
|
||||
.read = pcm_read,
|
||||
.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
|
||||
.lockp = &me,
|
||||
};
|
||||
|
||||
static const struct ast_format au_f = {
|
||||
.name = "au",
|
||||
.exts = "au",
|
||||
.format = AST_FORMAT_ULAW,
|
||||
.open = au_open,
|
||||
.rewrite = au_rewrite,
|
||||
.write = pcm_write,
|
||||
.seek = au_seek,
|
||||
.trunc = au_trunc,
|
||||
.tell = au_tell,
|
||||
.read = pcm_read,
|
||||
.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET, /* this many shorts */
|
||||
.lockp = &me,
|
||||
};
|
||||
|
||||
int load_module()
|
||||
{
|
||||
int index;
|
||||
|
||||
/* XXX better init ? */
|
||||
for (index = 0; index < (sizeof(ulaw_silence) / sizeof(ulaw_silence[0])); index++)
|
||||
ulaw_silence[index] = AST_LIN2MU(0);
|
||||
for (index = 0; index < (sizeof(alaw_silence) / sizeof(alaw_silence[0])); index++)
|
||||
alaw_silence[index] = AST_LIN2A(0);
|
||||
|
||||
return ast_format_register(name, exts, AST_FORMAT_ULAW,
|
||||
pcm_open,
|
||||
pcm_rewrite,
|
||||
pcm_write,
|
||||
pcm_seek,
|
||||
pcm_trunc,
|
||||
pcm_tell,
|
||||
pcm_read,
|
||||
pcm_close,
|
||||
pcm_getcomment);
|
||||
return ast_format_register(&pcm_f) || ast_format_register(&alaw_f)
|
||||
|| ast_format_register(&au_f);
|
||||
}
|
||||
|
||||
int unload_module()
|
||||
{
|
||||
return ast_format_unregister(name);
|
||||
return ast_format_unregister(pcm_f.name) || ast_format_unregister(alaw_f.name)
|
||||
|| ast_format_unregister(au_f.name);
|
||||
}
|
||||
|
||||
int usecount()
|
||||
{
|
||||
return glistcnt;
|
||||
return me.usecnt;
|
||||
}
|
||||
|
||||
char *description()
|
||||
{
|
||||
return desc;
|
||||
return "Raw/Sun uLaw/ALaw 8khz Audio support (PCM,PCMA,AU)";
|
||||
}
|
||||
|
||||
|
||||
char *key()
|
||||
{
|
||||
return ASTERISK_GPL_KEY;
|
||||
|
||||
Reference in New Issue
Block a user