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openzap: dtmf recording

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This commit is contained in:
Moises Silva
2010-07-29 18:07:30 -04:00
parent 9f9c4541cd
commit 2c0d751599
4 changed files with 149 additions and 1 deletions
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21
libs/openzap/src/include/openzap.h
View File

@@ -254,6 +254,9 @@
#define zap_clear_sflag_locked(obj, flag) assert(obj->mutex != NULL); zap_mutex_lock(obj->mutex); (obj)->sflags &= ~(flag); zap_mutex_unlock(obj->mutex);
#define zap_log_chan(zchan, level, format, ...) zap_log(level, "[s%dc%d][%d:%d] " format, zchan->span_id, zchan->chan_id, zchan->physical_span_id, zchan->physical_chan_id, __VA_ARGS__)
#define zap_log_chan_msg(zchan, level, msg) zap_log(level, "[s%dc%d][%d:%d] " msg, zchan->span_id, zchan->chan_id, zchan->physical_span_id, zchan->physical_chan_id)
#define zap_set_state_locked(obj, s) if ( obj->state == s ) { \
if (s != ZAP_CHANNEL_STATE_HANGUP) zap_log(ZAP_LOG_WARNING, "Why bother changing state on %d:%d from %s to %s\n", obj->span_id, obj->chan_id, zap_channel_state2str(obj->state), zap_channel_state2str(s)); \
@@ -494,6 +497,21 @@ typedef enum {
ZAP_TYPE_CHANNEL
} zap_data_type_t;
#ifdef ZAP_DEBUG_DTMF
/* number of bytes for the circular buffer (5 seconds worth of audio) */
#define DTMF_DEBUG_SIZE 8 * 5000
/* number of 20ms cycles before timeout and close the debug dtmf file (5 seconds) */
#define DTMF_DEBUG_TIMEOUT 250
typedef struct {
FILE *file;
char buffer[DTMF_DEBUG_SIZE];
int windex;
int wrapped;
int closetimeout;
zap_mutex_t *mutex;
} zap_dtmf_debug_t;
#endif
/* 2^8 table size, one for each byte value */
#define ZAP_GAINS_TABLE_SIZE 256
struct zap_channel {
@@ -561,6 +579,9 @@ struct zap_channel {
unsigned char txgain_table[ZAP_GAINS_TABLE_SIZE];
float rxgain;
float txgain;
#ifdef ZAP_DEBUG_DTMF
zap_dtmf_debug_t dtmfdbg;
#endif
};

119
libs/openzap/src/zap_io.c
View File

@@ -316,6 +316,9 @@ static zap_status_t zap_channel_destroy(zap_channel_t *zchan)
zap_sleep(500);
}
#ifdef ZAP_DEBUG_DTMF
zap_mutex_destroy(&zchan->dtmfdbg.mutex);
#endif
zap_mutex_lock(zchan->pre_buffer_mutex);
zap_buffer_destroy(&zchan->pre_buffer);
zap_mutex_unlock(zchan->pre_buffer_mutex);
@@ -450,7 +453,7 @@ OZ_DECLARE(zap_status_t) zap_span_create(zap_io_interface_t *zio, zap_span_t **s
memset(new_span, 0, sizeof(*new_span));
status = zap_mutex_create(&new_span->mutex);
assert(status == ZAP_SUCCESS);
zap_set_flag(new_span, ZAP_SPAN_CONFIGURED);
new_span->span_id = ++globals.span_index;
new_span->zio = zio;
@@ -658,6 +661,9 @@ OZ_DECLARE(zap_status_t) zap_span_add_channel(zap_span_t *span, zap_socket_t soc
zap_mutex_create(&new_chan->mutex);
zap_mutex_create(&new_chan->pre_buffer_mutex);
#ifdef ZAP_DEBUG_DTMF
zap_mutex_create(&new_chan->dtmfdbg.mutex);
#endif
zap_buffer_create(&new_chan->digit_buffer, 128, 128, 0);
zap_buffer_create(&new_chan->gen_dtmf_buffer, 128, 128, 0);
@@ -1356,6 +1362,23 @@ OZ_DECLARE(zap_status_t) zap_channel_outgoing_call(zap_channel_t *zchan)
return ZAP_FAIL;
}
#ifdef ZAP_DEBUG_DTMF
static void close_dtmf_debug(zap_channel_t *zchan)
{
zap_mutex_lock(zchan->dtmfdbg.mutex);
if (zchan->dtmfdbg.file) {
zap_log_chan_msg(zchan, ZAP_LOG_DEBUG, "closing debug dtmf file\n");
fclose(zchan->dtmfdbg.file);
zchan->dtmfdbg.file = NULL;
}
zchan->dtmfdbg.windex = 0;
zchan->dtmfdbg.wrapped = 0;
zap_mutex_unlock(zchan->dtmfdbg.mutex);
}
#endif
OZ_DECLARE(zap_status_t) zap_channel_done(zap_channel_t *zchan)
{
assert(zchan != NULL);
@@ -1380,6 +1403,9 @@ OZ_DECLARE(zap_status_t) zap_channel_done(zap_channel_t *zchan)
zap_buffer_destroy(&zchan->pre_buffer);
zchan->pre_buffer_size = 0;
zap_mutex_unlock(zchan->pre_buffer_mutex);
#ifdef ZAP_DEBUG_DTMF
close_dtmf_debug(zchan);
#endif
zap_channel_flush_dtmf(zchan);
@@ -2001,6 +2027,54 @@ OZ_DECLARE(zap_status_t) zap_channel_queue_dtmf(zap_channel_t *zchan, const char
assert(zchan != NULL);
zap_log_chan(zchan, ZAP_LOG_DEBUG, "Queuing DTMF %s\n", dtmf);
#ifdef ZAP_DEBUG_DTMF
zap_mutex_lock(zchan->dtmfdbg.mutex);
if (!zchan->dtmfdbg.file) {
struct tm currtime;
time_t currsec;
char dfile[512];
currsec = time(NULL);
localtime_r(&currsec, &currtime);
snprintf(dfile, sizeof(dfile), "dtmf-s%dc%d-20%d-%d-%d-%d:%d:%d.%s",
zchan->span_id, zchan->chan_id,
currtime.tm_year-100, currtime.tm_mon+1, currtime.tm_mday,
currtime.tm_hour, currtime.tm_min, currtime.tm_sec, zchan->native_codec == ZAP_CODEC_ULAW ? "ulaw" : zchan->native_codec == ZAP_CODEC_ALAW ? "alaw" : "sln");
zchan->dtmfdbg.file = fopen(dfile, "w");
if (!zchan->dtmfdbg.file) {
zap_log_chan(zchan, ZAP_LOG_ERROR, "failed to open debug dtmf file %s\n", dfile);
} else {
/* write the saved audio buffer */
int rc = 0;
int towrite = sizeof(zchan->dtmfdbg.buffer) - zchan->dtmfdbg.windex;
zap_log_chan(zchan, ZAP_LOG_DEBUG, "created debug DTMF file %s\n", dfile);
zchan->dtmfdbg.closetimeout = DTMF_DEBUG_TIMEOUT;
if (zchan->dtmfdbg.wrapped) {
rc = fwrite(&zchan->dtmfdbg.buffer[zchan->dtmfdbg.windex], 1, towrite, zchan->dtmfdbg.file);
if (rc != towrite) {
zap_log_chan(zchan, ZAP_LOG_ERROR, "only wrote %d out of %d bytes in DTMF debug buffer\n", rc, towrite);
}
}
if (zchan->dtmfdbg.windex) {
towrite = zchan->dtmfdbg.windex;
rc = fwrite(&zchan->dtmfdbg.buffer[0], 1, towrite, zchan->dtmfdbg.file);
if (rc != towrite) {
zap_log_chan(zchan, ZAP_LOG_ERROR, "only wrote %d out of %d bytes in DTMF debug buffer\n", rc, towrite);
}
}
zchan->dtmfdbg.windex = 0;
zchan->dtmfdbg.wrapped = 0;
}
} else {
zchan->dtmfdbg.closetimeout = DTMF_DEBUG_TIMEOUT;
}
zap_mutex_unlock(zchan->dtmfdbg.mutex);
#endif
if (zchan->pre_buffer) {
zap_buffer_zero(zchan->pre_buffer);
}
@@ -2177,6 +2251,49 @@ OZ_DECLARE(zap_status_t) zap_channel_read(zap_channel_t *zchan, void *data, zap_
}
}
#ifdef ZAP_DEBUG_DTMF
if (status == ZAP_SUCCESS) {
int dlen = (int) *datalen;
int rc = 0;
zap_mutex_lock(zchan->dtmfdbg.mutex);
if (!zchan->dtmfdbg.file) {
/* no file yet, write to our circular buffer */
int windex = zchan->dtmfdbg.windex;
int avail = sizeof(zchan->dtmfdbg.buffer) - windex;
char *dataptr = data;
if (dlen > avail) {
int diff = dlen - avail;
/* write only what we can and the rest at the beginning of the buffer */
memcpy(&zchan->dtmfdbg.buffer[windex], dataptr, avail);
memcpy(&zchan->dtmfdbg.buffer[0], &dataptr[avail], diff);
windex = diff;
/*zap_log_chan(zchan, ZAP_LOG_DEBUG, "wrapping around dtmf read buffer up to index %d\n\n", windex);*/
zchan->dtmfdbg.wrapped = 1;
} else {
memcpy(&zchan->dtmfdbg.buffer[windex], dataptr, dlen);
windex += dlen;
}
if (windex == sizeof(zchan->dtmfdbg.buffer)) {
/*zap_log_chan_msg(zchan, ZAP_LOG_DEBUG, "wrapping around dtmf read buffer\n");*/
windex = 0;
zchan->dtmfdbg.wrapped = 1;
}
zchan->dtmfdbg.windex = windex;
} else {
rc = fwrite(data, 1, dlen, zchan->dtmfdbg.file);
if (rc != dlen) {
zap_log(ZAP_LOG_WARNING, "DTMF debugger wrote only %d out of %d bytes: %s\n", rc, datalen, strerror(errno));
}
zchan->dtmfdbg.closetimeout--;
if (!zchan->dtmfdbg.closetimeout) {
close_dtmf_debug(zchan);
}
}
zap_mutex_unlock(zchan->dtmfdbg.mutex);
}
#endif
if (status == ZAP_SUCCESS) {
if (zap_test_flag(zchan, ZAP_CHANNEL_USE_RX_GAIN)
&& (zchan->native_codec == ZAP_CODEC_ALAW || zchan->native_codec == ZAP_CODEC_ULAW)) {