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rtp: Enable support for OPUS

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Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/510>
This commit is contained in:
Sanchayan Maity 2021-02-20 11:56:49 +05:30 • committed by PulseAudio Marge Bot
parent 0b9ef4cd0a
commit 86d1dd0d70
8 changed files with 174 additions and 47 deletions
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21
src/modules/rtp/sdp.c
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@ -39,8 +39,9 @@
#include "sdp.h"
#include "rtp.h"
char *pa_sdp_build(int af, const void *src, const void *dst, const char *name, uint16_t port, uint8_t payload, const pa_sample_spec *ss) {
char *pa_sdp_build(int af, const void *src, const void *dst, const char *name, uint16_t port, uint8_t payload, const pa_sample_spec *ss, bool enable_opus) {
uint32_t ntp;
uint32_t rate, channels;
char buf_src[64], buf_dst[64], un[64];
const char *u, *f;
@ -53,7 +54,15 @@ char *pa_sdp_build(int af, const void *src, const void *dst, const char *name, u
pa_assert(af == AF_INET);
#endif
pa_assert_se(f = pa_rtp_format_to_string(ss->format));
if (enable_opus) {
f = "OPUS";
rate = 48000;
channels = 2;
} else {
pa_assert_se(f = pa_rtp_format_to_string(ss->format));
rate = ss->rate;
channels = ss->channels;
}
if (!(u = pa_get_user_name(un, sizeof(un))))
u = "-";
@ -78,7 +87,7 @@ char *pa_sdp_build(int af, const void *src, const void *dst, const char *name, u
af == AF_INET ? "IP4" : "IP6", buf_dst,
(unsigned long) ntp,
port, payload,
payload, f, ss->rate, ss->channels);
payload, f, rate, channels);
}
static pa_sample_spec *parse_sdp_sample_spec(pa_sample_spec *ss, char *c) {
@ -89,6 +98,9 @@ static pa_sample_spec *parse_sdp_sample_spec(pa_sample_spec *ss, char *c) {
if (pa_startswith(c, "L16/")) {
ss->format = PA_SAMPLE_S16BE;
c += 4;
} else if (pa_startswith(c, "OPUS/")) {
ss->format = PA_SAMPLE_S16LE;
c += 5;
} else
return NULL;
@ -218,6 +230,9 @@ pa_sdp_info *pa_sdp_parse(const char *t, pa_sdp_info *i, int is_goodbye) {
if (parse_sdp_sample_spec(&i->sample_spec, c))
ss_valid = true;
if (pa_startswith(c, "OPUS/"))
i->enable_opus = true;
}
}
}