kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-09-02 19:16:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

audiosocket: added support for DTMF frames

Browse Source 
Updated the AudioSocket protocol to allow sending DTMF frames.
AST_FRAME_DTMF frames are now forwarded to the server, in addition to
AST_FRAME_AUDIO frames. A new payload type AST_AUDIOSOCKET_KIND_DTMF
with value 0x03 was added to the protocol. The payload is a 1-byte
ascii representing the DTMF digit (0-9,*,#...).

UserNote: The AudioSocket protocol now forwards DTMF frames with
payload type 0x03. The payload is a 1-byte ascii representing the DTMF
digit (0-9,*,#...).
This commit is contained in:
Florent CHAUVEAU
2025-02-28 08:47:18 +01:00
parent 5cfc79ebea
commit c44e7e85ec
4 changed files with 61 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
res/res_audiosocket.c
View File

@@ -209,18 +209,37 @@ const int ast_audiosocket_init(const int svc, const char *id)
const int ast_audiosocket_send_frame(const int svc, const struct ast_frame *f)
{
uint8_t buf[3 + f->datalen];
uint16_t *length = (uint16_t *) &buf[1];
int datalen = f->datalen;
if (f->frametype == AST_FRAME_DTMF) {
datalen = 1;
}
/* Audio format is 16-bit, 8kHz signed linear mono for dialplan app,
depends on agreed upon audio codec for channel driver interface. */
buf[0] = AST_AUDIOSOCKET_KIND_AUDIO;
*length = htons(f->datalen);
memcpy(&buf[3], f->data.ptr, f->datalen);
{
uint8_t buf[3 + datalen];
uint16_t *length = (uint16_t *) &buf[1];
if (write(svc, buf, 3 + f->datalen) != 3 + f->datalen) {
ast_log(LOG_WARNING, "Failed to write data to AudioSocket because: %s\n", strerror(errno));
return -1;
/* Audio format is 16-bit, 8kHz signed linear mono for dialplan app,
depends on agreed upon audio codec for channel driver interface. */
switch (f->frametype) {
case AST_FRAME_VOICE:
buf[0] = AST_AUDIOSOCKET_KIND_AUDIO;
*length = htons(datalen);
memcpy(&buf[3], f->data.ptr, datalen);
break;
case AST_FRAME_DTMF:
buf[0] = AST_AUDIOSOCKET_KIND_DTMF;
buf[3] = (uint8_t) f->subclass.integer;
*length = htons(1);
break;
default:
ast_log(LOG_ERROR, "Unsupported frame type %d for AudioSocket\n", f->frametype);
return -1;
}
if (write(svc, buf, 3 + datalen) != 3 + datalen) {
ast_log(LOG_WARNING, "Failed to write data to AudioSocket because: %s\n", strerror(errno));
return -1;
}
}
return 0;