From df7958487aefb2425c5b1e7a3e8d366017d2c200 Mon Sep 17 00:00:00 2001
From: Martin Pulec <martin.pulec@cesnet.cz>
Date: Tue, 29 Jun 2021 14:02:31 +0200
Subject: [PATCH] Server mode: support audio

---
 src/audio/audio.cpp | 4 ++++
 src/main.cpp        | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/src/audio/audio.cpp b/src/audio/audio.cpp
index cbb12e614..2b2f08561 100644
--- a/src/audio/audio.cpp
+++ b/src/audio/audio.cpp
@@ -84,6 +84,7 @@
 #include "tv.h"
 #include "transmit.h"
 #include "pdb.h"
+#include "utils/net.h"
 #include "utils/thread.h"
 #include "utils/worker.h"
 
@@ -519,6 +520,9 @@ static struct rtp *initialize_audio_network(struct audio_network_parameters *par
                 rtp_set_option(r, RTP_OPT_RECORD_SOURCE, TRUE);
                 rtp_set_sdes(r, rtp_my_ssrc(r), RTCP_SDES_TOOL,
                              PACKAGE_STRING, strlen(PACKAGE_VERSION));
+                if (strcmp(params->addr, IN6_BLACKHOLE_STR) == 0) {
+                        rtp_set_option(r, RTP_OPT_SEND_BACK, TRUE);
+                }
                 rtp_set_recv_buf(r, DEFAULT_AUDIO_RECV_BUF_SIZE);
         }
 
diff --git a/src/main.cpp b/src/main.cpp
index 3c6bb5324..45bcebf11 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1121,6 +1121,9 @@ int main(int argc, char *argv[])
                 if (strcmp(requested_display, "none") == 0) {
                         requested_display = "dummy";
                 }
+                if (strcmp(audio_recv, "none") == 0) {
+                        audio_recv = "dummy";
+                }
         }
         if (is_client) {
                 commandline_params["udp-disable-multi-socket"] = string();
@@ -1131,6 +1134,10 @@ int main(int argc, char *argv[])
                 if (strcmp("none", vidcap_params_get_driver(vidcap_params_head)) == 0) {
                         vidcap_params_set_device(vidcap_params_tail, "testcard:2:1:5:UYVY");
                 }
+                if (strcmp("none", audio_send) == 0) {
+                        parse_audio_capture_format("sample_rate=5");
+                        audio_send = "testcard:frames=1";
+                }
         }
 
         if (!audio_host) {