diff options
Diffstat (limited to 'openbsc/contrib')
-rw-r--r-- | openbsc/contrib/testconv/Makefile | 17 | ||||
-rw-r--r-- | openbsc/contrib/testconv/testconv_main.c | 91 |
2 files changed, 108 insertions, 0 deletions
diff --git a/openbsc/contrib/testconv/Makefile b/openbsc/contrib/testconv/Makefile new file mode 100644 index 000000000..90adeccca --- /dev/null +++ b/openbsc/contrib/testconv/Makefile @@ -0,0 +1,17 @@ + +OBJS = testconv_main.o mgcp_transcode.o + +CC = gcc +CFLAGS = -O0 -ggdb -Wall +LDFLAGS = +CPPFLAGS = -I../.. -I../../include $(shell pkg-config --cflags libosmocore) $(shell pkg-config --cflags libbcg729) +LIBS = ../../src/libmgcp/libmgcp.a ../../src/libcommon/libcommon.a $(shell pkg-config --libs libosmocore) $(shell pkg-config --libs libbcg729) -lgsm -lrt + +testconv: $(OBJS) + $(CC) -o $@ $^ $(LDFLAGS) $(LIBS) + +testconv_main.o: testconv_main.c +mgcp_transcode.o: ../../src/osmo-bsc_mgcp/mgcp_transcode.c + +$(OBJS): + $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $< diff --git a/openbsc/contrib/testconv/testconv_main.c b/openbsc/contrib/testconv/testconv_main.c new file mode 100644 index 000000000..c2785f23e --- /dev/null +++ b/openbsc/contrib/testconv/testconv_main.c @@ -0,0 +1,91 @@ +#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; +} + |