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osmo-mgw
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mgcp: Extend the CLI transcoding tool by ptime conversion 

This modification allows it to set the number of samples per packet
that is written to the output.

Sponsored-by: On-Waves ehf
This commit is contained in:
Jacob Erlbeck 2014-04-14 11:30:45 +02:00
parent 42a833e89f
commit 07886d9b0a
1 changed files with 21 additions and 3 deletions
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24
openbsc/contrib/testconv/testconv_main.c
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@ -46,6 +46,10 @@ int main(int argc, char **argv)
struct mgcp_endpoint endp = {0};
struct mgcp_process_rtp_state *state;
int in_size;
int in_samples = 160;
int out_samples = 0;
uint32_t ts = 0;
uint16_t seq = 0;
osmo_init_logging(&log_info);
@ -58,12 +62,20 @@ int main(int argc, char **argv)
src_end = &endp.net_end;
if (argc <= 2)
errx(1, "Usage: {gsm|g729|pcma|l16} {gsm|g729|pcma|l16}");
errx(1, "Usage: {gsm|g729|pcma|l16} {gsm|g729|pcma|l16} [SPP]");
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]);
if (argc > 3)
out_samples = atoi(argv[3]);
if (out_samples) {
dst_end->frame_duration_den = dst_end->rate;
dst_end->frame_duration_num = out_samples;
dst_end->frames_per_packet = 1;
}
rc = mgcp_transcoding_setup(&endp, dst_end, src_end);
if (rc < 0)
@ -72,7 +84,7 @@ int main(int argc, char **argv)
state = dst_end->rtp_process_data;
OSMO_ASSERT(state != NULL);
in_size = mgcp_transcoding_get_frame_size(state, 160, 0);
in_size = mgcp_transcoding_get_frame_size(state, in_samples, 0);
OSMO_ASSERT(sizeof(buf) >= in_size + 12);
buf[1] = src_end->payload_type;
@ -87,13 +99,19 @@ int main(int argc, char **argv)
if (cc != in_size)
err(1, "read");
*(uint16_t*)(buf+2) = htonl(seq);
*(uint32_t*)(buf+4) = htonl(ts);
seq += 1;
ts += in_samples;
cc += 12; /* include RTP header */
len = cc;
do {
cont = mgcp_transcoding_process_rtp(&endp, dst_end,
buf, &len, sizeof(buf));
buf, &len, sizeof(buf));
if (cont == -EAGAIN) {
fprintf(stderr, "Got EAGAIN\n");
break;