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janus: refactored sdp logic

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This commit is contained in:
Maxim Devaev
2026-01-31 16:45:26 +02:00
parent 214708549d
commit a1ae02de5d
7 changed files with 150 additions and 76 deletions
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27
janus/src/rtpa.c
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@@ -23,11 +23,12 @@
#include "rtpa.h"
#include <stdlib.h>
#include <inttypes.h>
#include "uslibs/types.h"
#include "uslibs/tools.h"
#include "rtp.h"
us_rtpa_s *us_rtpa_init(us_rtp_callback_f callback) {
us_rtpa_s *rtpa;
@@ -43,30 +44,6 @@ void us_rtpa_destroy(us_rtpa_s *rtpa) {
free(rtpa);
}
char *us_rtpa_make_sdp(us_rtpa_s *rtpa, bool mic) {
const uint pl = rtpa->rtp->payload;
char *sdp;
US_ASPRINTF(sdp,
"m=audio 1 RTP/SAVPF %u" RN
"c=IN IP4 0.0.0.0" RN
"a=rtpmap:%u OPUS/%u/%u" RN
"a=fmtp:%u sprop-stereo=1" RN // useinbandfec=1
"a=rtcp-fb:%u nack" RN
"a=rtcp-fb:%u nack pli" RN
"a=rtcp-fb:%u goog-remb" RN
"a=mid:a" RN
"a=msid:audio a" RN
"a=ssrc:%" PRIu32 " cname:ustreamer" RN
"a=%s" RN,
pl, pl,
US_RTP_OPUS_HZ, US_RTP_OPUS_CH,
pl, pl, pl, pl,
rtpa->rtp->ssrc,
(mic ? "sendrecv" : "sendonly")
);
return sdp;
}
void us_rtpa_wrap(us_rtpa_s *rtpa, const u8 *data, uz size, u32 pts) {
if (size + US_RTP_HEADER_SIZE <= US_RTP_DATAGRAM_SIZE) {
us_rtp_write_header(rtpa->rtp, pts, false);