** **
\*****************************************************************************/
+/* HOW TO audio?
+
+Audio flow has two ways:
+
+* from channel to the upper layer
+ -> sound from mISDN channel
+ -> announcement from vbox channel
+
+* from the upper layer to the channel
+ -> sound from remote channel
+ -> sound from asterisk
+
+Audio is required:
+
+ -> if local or remote channel is not mISDN
+ -> if endpoint is linked to asterisk
+ -> if call is recorded (vbox)
+
+
+Functions:
+
+* PmISDN::txfromup
+ -> audio from upper layer is buffered for later transmission to channel
+* PmISDN::handler
+ -> buffered audio from upper layer or tones are transmitted via system clock
+* mISDN_handler
+ -> rx-data from port to record() and upper layer
+ -> tx-data from port (dsp) to record()
+* VboxPort::handler
+ -> streaming announcement to upper layer
+ -> recording announcement
+* VboxPort::message_epoint
+ -> recording audio message from upper layer
+
+
+
+*/
+
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "main.h"
-#define BETTERDELAY
-
-//#define MIXER_DEBUG /* debug mixer buffer overflow and underrun */
-
class Port *port_first = NULL;
unsigned long port_serial = 1; /* must be 1, because 0== no port */
p_tone_fh = -1;
p_tone_fetched = NULL;
p_tone_name[0] = '\0';
-// p_knock_fh = -1;
-// p_knock_fetched = NULL;
p_state = PORT_STATE_IDLE;
p_epointlist = NULL;
memset(&p_callerinfo, 0, sizeof(p_callerinfo));
memset(&p_connectinfo, 0, sizeof(p_connectinfo));
memset(&p_redirinfo, 0, sizeof(p_redirinfo));
memset(&p_capainfo, 0, sizeof(p_capainfo));
- memset(p_mixer_buffer, 0, sizeof(p_mixer_buffer));
- memset(p_record_buffer, 0, sizeof(p_record_buffer));
- memset(p_stereo_buffer, 0, sizeof(p_stereo_buffer));
- p_mixer_rel = NULL;
- p_mixer_readp = 0;
p_echotest = 0;
- next = NULL;
+
+ /* call recording */
p_record = NULL;
p_record_type = 0;
p_record_length = 0;
+ p_record_skip = 0;
p_record_filename[0] = '\0';
+ p_record_buffer_readp = 0;
+ p_record_buffer_writep = 0;
+ p_record_buffer_dir = 0;
/* append port to chain */
+ next = NULL;
temp = port_first;
tempp = &port_first;
while(temp)
*/
Port::~Port(void)
{
- struct mixer_relation *relation, *rtemp;
class Port *temp, **tempp;
struct message *message;
PDEBUG(DEBUG_PORT, "removing port of type %d, name '%s'\n", p_type, p_name);
- /* free mixer relation chain */
- relation = p_mixer_rel;
- while(relation)
- {
- rtemp = relation;
- relation = relation->next;
- memset(rtemp, 0, sizeof(struct mixer_relation));
- free(rtemp);
- pmemuse--;
- }
- p_mixer_rel = NULL; /* beeing paranoid */
-
/* disconnect port from endpoint */
while(p_epointlist)
{
int Port::read_audio(unsigned char *buffer, int length)
{
int l,len;
- int readp;
int nodata=0; /* to detect 0-length files and avoid endless reopen */
char filename[128];
int tone_left_before; /* temp variable to determine the change in p_tone_left */
return(0);
len = length;
- codec_in = p_tone_codec;
/* if there is no tone set, use silence */
if (p_tone_name[0] == 0)
PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
p_tone_dir[0] = '\0';
p_tone_name[0] = '\0';
- // codec_in = CODEC_LAW;
goto rest_is_silence;
}
fhuse++;
PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
p_tone_dir[0] = '\0';
p_tone_name[0] = '\0';
- // codec_in = CODEC_LAW;
goto rest_is_silence;
}
fhuse++;
}
-/*
- * dummy for transmit function, since this must be inherited
- */
-void Port::transmit(unsigned char *buffer, int length, int tonelength)
-{
-}
-
-
/* port handler:
* process transmission clock */
int Port::handler(void)
set_tone(param->tone.dir,param->tone.name);
return(1);
- case MESSAGE_DATA: /* tx-data from upper layer */
- fromup(param->data.data, param->data.len);
- return(1);
-
case MESSAGE_VBOX_TONE: /* play tone of answering machine */
PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine tone '%s' '%s'\n", p_name, param->tone.dir, param->tone.name);
set_vbox_tone(param->tone.dir, param->tone.name);
if (!p_record)
return;
+ PDEBUG(DEBUG_PORT, "data still in record buffer: %d (dir %d)\n", (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK, p_record_buffer_dir);
memcpy(&callerinfo, &p_callerinfo, sizeof(struct caller_info));
- apply_callerid_restriction(p_record_anon_ignore, -1, callerinfo.id, &callerinfo.ntype, &callerinfo.present, &callerinfo.screen, callerinfo.voip, callerinfo.intern, callerinfo.name);
+ apply_callerid_restriction(p_record_anon_ignore, -1, callerinfo.id, &callerinfo.ntype, &callerinfo.present, &callerinfo.screen, NULL/*callerinfo.voip*/, callerinfo.extension, callerinfo.name);
SCPY(number, p_dialinginfo.number);
SCPY(callerid, numberrize_callerinfo(callerinfo.id, callerinfo.ntype));
/* send email with sample*/
if (p_record_vbox_email[0])
{
- send_mail(p_record_vbox_email_file?filename:(char *)"", callerid, callerinfo.intern, callerinfo.name, p_record_vbox_email, p_record_vbox_year, p_record_vbox_mon, p_record_vbox_mday, p_record_vbox_hour, p_record_vbox_min, p_record_extension);
+ send_mail(p_record_vbox_email_file?filename:(char *)"", callerid, callerinfo.extension, callerinfo.name, p_record_vbox_email, p_record_vbox_year, p_record_vbox_mon, p_record_vbox_mday, p_record_vbox_hour, p_record_vbox_min, p_record_extension);
}
}
}
*
* If one stream (dir) received packets, they are stored to a
* buffer to wait for the other stream (dir), so both streams can
- * be combined. If the buffer is full, it's read pointer is written
- * without mixing stream.
+ * be combined. If the buffer is full, it's content is written
+ * without mixing stream. (assuming only one stram (dir) exists.)
* A flag is used to indicate what stream is currently in buffer.
*
* NOTE: First stereo sample (odd) is from down, second is from up.
*/
-alle buffer initialisieren
-record nur aufrufen, wenn recorded wird.
-restlicher buffer wegschreiben beim schliessen
-void Port::record(char *data, int length, int dir_fromup)
+void Port::record(unsigned char *data, int length, int dir_fromup)
{
unsigned char write_buffer[1024], *d;
signed short *s;
- int r, w;
+ int free, i, ii;
signed long sample;
/* no recording */
if (!p_record || !length)
return;
+ /* skip */
+ if (dir_fromup)
+ {
+ /* more than we have */
+ if (p_record_skip > length)
+ {
+ p_record_skip -= length;
+ return;
+ }
+ data += p_record_skip;
+ length -= p_record_skip;
+ }
+
free = ((p_record_buffer_readp - p_record_buffer_writep - 1) & RECORD_BUFFER_MASK);
/* the buffer stores the same data stream */
/* first write what we can to the buffer */
while(free && length)
{
- p_record_buffer[p_record_buffer_writep] = audio_law_to_s32(*data++);
+ p_record_buffer[p_record_buffer_writep] = audio_law_to_s32[*data++];
p_record_buffer_writep = (p_record_buffer_writep + 1) & RECORD_BUFFER_MASK;
free--;
length--;
free += sizeof(write_buffer);
goto same_again;
}
-
- /* the buffer store the other stream */
- different_again:
+ /* the buffer stores the other stream */
/* if buffer empty, change it */
if (p_record_buffer_readp == p_record_buffer_writep)
while(i < ii)
{
sample = p_record_buffer[p_record_buffer_readp]
- + audio_law_to_s32(*data++);
+ + audio_law_to_s32[*data++];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
if (sample < 32767)
sample = -32767;
i = 0;
while(i < ii)
{
- *s++ = audio_law_to_s32(*data++);
+ *s++ = audio_law_to_s32[*data++];
*s++ = p_record_buffer[p_record_buffer_readp];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
while(i < ii)
{
*s++ = p_record_buffer[p_record_buffer_readp];
- *s++ = audio_law_to_s32(*data++);
+ *s++ = audio_law_to_s32[*data++];
i++;
}
}
while(i < ii)
{
sample = p_record_buffer[p_record_buffer_readp]
- + audio_law_to_s32(*data++);
+ + audio_law_to_s32[*data++];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
if (sample < 32767)
sample = -32767;
while(i < ii)
{
sample = p_record_buffer[p_record_buffer_readp]
- + audio_law_to_s32(*data++);
+ + audio_law_to_s32[*data++];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
if (sample < 32767)
sample = -32767;
}
-/*
- * enque data from upper buffer
- */
-iniialisieren der werte
-void Port::txfromup(unsigned char *data, int length)
-{
-
- /* no recording */
- if (!length)
- return;
-
- /* get free samples in buffer */
- free = ((p_fromup_buffer_readp - p_fromup_buffer_writep - 1) & FROMUP_BUFFER_MASK);
- if (free < length)
- {
- PDEBUG(DEBUG_PORT, "Port(%d): fromup_buffer overflows, this shall not happen under normal conditions\n", p_serial);
- return;
- }
-
- /* write data to buffer and return */
- while(length)
- {
- p_fromup_buffer[p_fromup_buffer_writep] = *data++;
- p_fromup_buffer_writep = (p_fromup_buffer_writep + 1) & FROMUP_BUFFER_MASK;
- length--;
- }
- return; // must return, because length is 0
-}
-
projects / lcr.git / blobdiff