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mod_dahdi_codec now works with Zaptel too, no need for DAHDI or Zaptel headers.

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11681 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Moises Silva 2009-02-07 19:14:03 +00:00
parent 304bd74cdc
commit 0c906fa371
1 changed files with 50 additions and 8 deletions
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58
src/mod/codecs/mod_dahdi_codec/mod_dahdi_codec.c
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@ -32,16 +32,11 @@
#include <switch.h>
#include <g711.h>
#include <dahdi/user.h>
#include <linux/types.h> /* __u32 */
#include <sys/ioctl.h>
/*#define DEBUG_DAHDI_CODEC 1*/
#define DAHDI_FORMAT_G723_1 (1 << 0)
#define DAHDI_FORMAT_ULAW (1 << 2)
#define DAHDI_FORMAT_SLINEAR (1 << 6)
#define DAHDI_FORMAT_G729A (1 << 8)
#define CODEC_G729_IANA_CODE 18
#define CODEC_G723_IANA_CODE 4
@ -50,8 +45,40 @@ static uint32_t total_encoders = 0;
static uint32_t total_encoders_usage = 0;
static uint32_t total_decoders = 0;
static uint32_t total_decoders_usage = 0;
static const char transcoding_device[] = "/dev/dahdi/transcode";
static const char transcoder_name[] = "DAHDI";
/*
Zaptel/DAHDI definitions to not require the headers installed
Zaptel and DAHDI are binary compatible (at least in the transcoder interface)
*/
#define DAHDI_TC_CODE 'T'
#define DAHDI_TC_ALLOCATE _IOW(DAHDI_TC_CODE, 1, struct dahdi_transcoder_formats)
#define DAHDI_TC_GETINFO _IOWR(DAHDI_TC_CODE, 2, struct dahdi_transcoder_info)
#define DAHDI_FORMAT_G723_1 (1 << 0)
#define DAHDI_FORMAT_ULAW (1 << 2)
#define DAHDI_FORMAT_SLINEAR (1 << 6)
#define DAHDI_FORMAT_G729A (1 << 8)
struct dahdi_transcoder_formats {
__u32 srcfmt;
__u32 dstfmt;
};
struct dahdi_transcoder_info {
__u32 tcnum;
char name[80];
__u32 numchannels;
__u32 dstfmts;
__u32 srcfmts;
};
static const char transcoding_device_dahdi[] = "/dev/dahdi/transcode";
static const char transcoder_name_dahdi[] = "DAHDI";
static const char transcoding_device_zap[] = "/dev/zap/transcode";
static const char transcoder_name_zap[] = "Zap";
static const char *transcoding_device = NULL;
static const char *transcoder_name = NULL;
SWITCH_MODULE_LOAD_FUNCTION(mod_dahdi_codec_load);
SWITCH_MODULE_DEFINITION(mod_dahdi_codec, mod_dahdi_codec_load, NULL, NULL);
@ -305,6 +332,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_dahdi_codec_load)
{
switch_api_interface_t *api_interface;
switch_codec_interface_t *codec_interface;
struct stat statbuf;
struct dahdi_transcoder_info info = { 0 };
int32_t fd, res;
@ -313,6 +341,20 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_dahdi_codec_load)
total_decoders = 0;
total_decoders_usage = 0;
/* Let's check if DAHDI or Zaptel device should be used */
if (!stat(transcoding_device_dahdi, &statbuf)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "DAHDI transcoding device found.\n");
transcoding_device = transcoding_device_dahdi;
transcoder_name = transcoder_name_zap;
} else if (!stat(transcoding_device_zap, &statbuf)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Zap transcoding device found.\n");
transcoding_device = transcoding_device_zap;
transcoder_name = transcoder_name_zap;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "No DAHDI or Zap transcoder device was found in /dev/.\n");
return SWITCH_STATUS_FALSE;
}
fd = open(transcoding_device, O_RDWR);
if (fd < 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to open %s transcoder device.\n", transcoder_name);