92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <err.h>
|
||
|
|
|
||
|
|
#include <osmocom/core/talloc.h>
|
||
|
|
#include <osmocom/core/application.h>
|
||
|
|
|
||
|
|
#include <openbsc/debug.h>
|
||
|
|
#include <openbsc/gsm_data.h>
|
||
|
|
#include <openbsc/mgcp.h>
|
||
|
|
#include <openbsc/mgcp_internal.h>
|
||
|
|
|
||
|
|
#include "bscconfig.h"
|
||
|
|
#ifndef BUILD_MGCP_TRANSCODING
|
||
|
|
#error "Requires MGCP transcoding enabled (see --enable-mgcp-transcoding)"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "src/osmo-bsc_mgcp/mgcp_transcode.h"
|
||
|
|
|
||
|
|
static int audio_name_to_type(const char *name)
|
||
|
|
{
|
||
|
|
if (!strcasecmp(name, "gsm"))
|
||
|
|
return 3;
|
||
|
|
#ifdef HAVE_BCG729
|
||
|
|
else if (!strcasecmp(name, "g729"))
|
||
|
|
return 18;
|
||
|
|
#endif
|
||
|
|
else if (!strcasecmp(name, "pcma"))
|
||
|
|
return 8;
|
||
|
|
else if (!strcasecmp(name, "l16"))
|
||
|
|
return 11;
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int mgcp_get_trans_frame_size(void *state_, int nsamples, int dst);
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
char buf[4096] = {0};
|
||
|
|
int cc, rc;
|
||
|
|
struct mgcp_rtp_end dst_end = {0};
|
||
|
|
struct mgcp_rtp_end src_end = {0};
|
||
|
|
struct mgcp_trunk_config tcfg = {{0}};
|
||
|
|
struct mgcp_endpoint endp = {0};
|
||
|
|
struct mgcp_process_rtp_state *state;
|
||
|
|
int in_size;
|
||
|
|
|
||
|
|
osmo_init_logging(&log_info);
|
||
|
|
|
||
|
|
tcfg.endpoints = &endp;
|
||
|
|
tcfg.number_endpoints = 1;
|
||
|
|
endp.tcfg = &tcfg;
|
||
|
|
|
||
|
|
if (argc <= 2)
|
||
|
|
errx(1, "Usage: {gsm|g729|pcma|l16} {gsm|g729|pcma|l16}");
|
||
|
|
|
||
|
|
if ((src_end.payload_type = audio_name_to_type(argv[1])) == -1)
|
||
|
|
errx(1, "invalid input format '%s'", argv[1]);
|
||
|
|
if ((dst_end.payload_type = audio_name_to_type(argv[2])) == -1)
|
||
|
|
errx(1, "invalid output format '%s'", argv[2]);
|
||
|
|
|
||
|
|
rc = mgcp_transcoding_setup(&endp, &dst_end, &src_end);
|
||
|
|
if (rc < 0)
|
||
|
|
errx(1, "setup failed: %s", strerror(-rc));
|
||
|
|
|
||
|
|
state = dst_end.rtp_process_data;
|
||
|
|
OSMO_ASSERT(state != NULL);
|
||
|
|
|
||
|
|
in_size = mgcp_transcoding_get_frame_size(state, 160, 0);
|
||
|
|
OSMO_ASSERT(sizeof(buf) >= in_size + 12);
|
||
|
|
|
||
|
|
while ((cc = read(0, buf + 12, in_size))) {
|
||
|
|
if (cc != in_size)
|
||
|
|
err(1, "read");
|
||
|
|
|
||
|
|
cc += 12; /* include RTP header */
|
||
|
|
|
||
|
|
rc = mgcp_transcoding_process_rtp(&endp, &dst_end,
|
||
|
|
buf, &cc, sizeof(buf));
|
||
|
|
if (rc < 0)
|
||
|
|
errx(1, "processing failed: %s", strerror(-rc));
|
||
|
|
|
||
|
|
cc -= 12; /* ignore RTP header */
|
||
|
|
if (write(1, buf + 12, cc) != cc)
|
||
|
|
err(1, "write");
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|