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rtp: use macros for rtp header length

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This commit is contained in:
Steffen Vogel 2019-01-28 10:53:01 +01:00
parent 779db9ec5d
commit 317077fa93
2 changed files with 12 additions and 12 deletions
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4
include/villas/nodes/rtp.h
View file

@ -45,6 +45,7 @@ extern "C" {
/** The maximum length of a packet which contains rtp data. */
#define RTP_INITIAL_BUFFER_LEN 1500
#define RTP_PACKET_TYPE 21
/* Forward declarations */
struct format_type;
@ -60,8 +61,6 @@ struct rtp {
struct format_type *format;
struct io io;
struct mbuf *mb;
double rate; /**< Sample rate of source */
struct {
@ -88,6 +87,7 @@ struct rtp {
} aimd; /** AIMD state */
struct queue_signalled recv_queue;
struct mbuf *send_mb;
};
/** @see node_type::print */

20
lib/nodes/rtp.c
View file

@ -326,11 +326,11 @@ int rtp_start(struct node *n)
return ret;
/* Initialize memory buffer for sending */
r->mb = mbuf_alloc(RTP_INITIAL_BUFFER_LEN + 12);
if (!r->mb)
r->send_mb = mbuf_alloc(RTP_INITIAL_BUFFER_LEN);
if (!r->send_mb)
return -1;
ret = mbuf_fill(r->mb, 0, 12);
ret = mbuf_fill(r->send_mb, 0, RTP_HEADER_SIZE);
if (ret)
return -1;
@ -399,7 +399,7 @@ int rtp_stop(struct node *n)
if (ret)
warning("Problem destroying queue");
mem_deref(r->mb);
mem_deref(r->send_mb);
return io_destroy(&r->io);
}
@ -508,24 +508,24 @@ int rtp_write(struct node *n, struct sample *smps[], unsigned cnt, unsigned *rel
uint32_t ts = (uint32_t) time(NULL);
retry: mbuf_set_pos(r->mb, 12);
avail = mbuf_get_space(r->mb);
cnt = io_sprint(&r->io, (char *) r->mb->buf + r->mb->pos, avail, &wbytes, smps, cnt);
retry: mbuf_set_pos(r->send_mb, RTP_HEADER_SIZE);
avail = mbuf_get_space(r->send_mb);
cnt = io_sprint(&r->io, (char *) r->send_mb->buf + r->send_mb->pos, avail, &wbytes, smps, cnt);
if (cnt < 0)
return -1;
if (wbytes > avail) {
ret = mbuf_resize(r->mb, wbytes + 12);
ret = mbuf_resize(r->send_mb, wbytes + RTP_HEADER_SIZE);
if (!ret)
return -1;
goto retry;
}
else
mbuf_set_end(r->mb, r->mb->pos + wbytes);
mbuf_set_end(r->send_mb, r->send_mb->pos + wbytes);
/* Send dataset */
ret = rtp_send(r->rs, &r->out.saddr_rtp, false, false, 21, ts, r->mb);
ret = rtp_send(r->rs, &r->out.saddr_rtp, false, false, RTP_PACKET_TYPE, ts, r->send_mb);
if (ret) {
warning("Error from rtp_send, reason: %d", ret);
cnt = ret;