Simple test suite to verify playback and recording in memory mapped mode on the network loopback interface.

This can be used t odebug issue #17.

run_test.sh

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+#!/bin/bash
+#
+# Tested on Ubuntu 18.04
+#
+
+function cleanup {
+#kill and wait for previous daemon instances to exit
+  sudo killall -q ptp4l
+  killall -q aes67-daemon
+  while killall -0 aes67-daemon 2>/dev/null ; do
+    sleep 1
+  done
+}
+
+if ! [ -x "$(command -v /usr/sbin/ptp4l)" ]; then
+  echo 'Error: ptp4l is not installed.' >&2
+  exit 1
+fi
+
+if ! [ -x "$(command -v arecord)" ]; then
+  echo 'Error: arecord is not installed.' >&2
+  exit 1
+fi
+
+if ! [ -x "$(command -v speaker-test)" ]; then
+  echo 'Error: speaker-test is not installed.' >&2
+  exit 1
+fi
+
+if ! [ -x "$(command -v ./daemon/aes67-daemon)" ]; then
+  echo 'Error: aes67-daemon is not compiled.' >&2
+  exit 1
+fi
+
+if ! [ -r "3rdparty/ravenna-alsa-lkm/driver/MergingRavennaALSA.ko" ]; then
+  echo 'Error: MergingRavennaALSA.ko module is not compiled.' >&2
+  exit 1
+fi
+
+trap cleanup EXIT
+
+#configure system parms
+sudo sysctl -w net/ipv4/igmp_max_memberships=66
+
+if [ -x /usr/bin/pulseaudio ]; then
+  #stop pulseaudio, this seems to open/close ALSA continuosly
+  echo autospawn = no > $HOME/.config/pulse/client.conf
+  pulseaudio --kill >/dev/null 2>&1
+  rm $HOME/.config/pulse/client.conf
+  #disable pulseaudio
+  systemctl --user stop pulseaudio.socket > /dev/null 2>&1
+  systemctl --user stop pulseaudio.sservice > /dev/null 2>&1
+fi
+
+#install kernel module
+sudo insmod 3rdparty/ravenna-alsa-lkm/driver/MergingRavennaALSA.ko
+
+cleanup
+if [ -f ./test/sink_test.wav ] ; then
+  rm -f sink_test.wav
+fi
+
+echo "Starting PTP master ..."
+sudo /usr/sbin/ptp4l -i lo -l7 -E -S &
+
+#echo "Starting AES67 daemon ..."
+./daemon/aes67-daemon -c ./test/daemon.conf &
+
+#open browser on configuration page
+if [ -x "$(command -v xdg-open)" ]; then
+  xdg-open "http://127.0.0.1:8080/PTP"
+fi
+
+echo "Waiting for PTP slave to sync ..."
+sleep 30
+
+#starting recording on sink
+echo "Starting to record 240 secs from sink ..."
+arecord -M -d 240 -D plughw:RAVENNA -f S24_3LE -r 48000 -c 2 -t wav /tmp/sink_test.wav > /dev/null 2>&1 &
+sleep 10
+
+#starting playback on source
+echo "Starting to playback test on source ..."
+aplay -M -D plughw:RAVENNA  ./test/test.wav > /dev/null 2>&1 &
+
+while killall -0 arecord 2>/dev/null ; do
+  sleep 1
+done
+killall aplay
+if [ -f /tmp/sink_test.wav ] ; then
+  mv /tmp/sink_test.wav test/
+  echo "Recording to file \"test/sink_test.wav\" successfull"
+else
+  echo "Recording failed"
+fi
+
+echo "Terminating processes ..."
+

test/check.cc

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+// basic file operations
+#include <iostream>
+#include <fstream>
+
+using namespace std;
+
+int main () 
+{
+  fstream fl;
+  fl.open("./sink_test.wav", ios::in|ios::binary);
+  if (!fl.is_open()) {
+    cout << "cannot open file " << endl;
+    exit(1);
+  }
+  auto begin = fl.tellp();
+  fl.seekp(0, ios::end);
+  auto end = fl.tellp();
+  fl.seekp(68, ios::beg);
+  unsigned char ch = 0;
+  auto prev = fl.tellp();
+  while(fl.tellp() < end && ch == 0)
+  {
+    prev = fl.tellp();
+    ch = fl.get();
+  }
+  unsigned char curr = 0;
+  bool first = true;
+  fl.seekp(prev);
+  while(fl.tellp() < end)
+  {
+    if (!first) {
+      ch = fl.get();
+      if (ch != (uint8_t)curr) break;
+    }
+    ch = fl.get();
+    if (ch != (uint8_t)(curr+1)) break;
+    ch = fl.get();
+    if (ch != (uint8_t)(curr+2)) break;
+    ch = fl.get();
+    if (ch != (uint8_t)curr) break;
+    ch = fl.get();
+    if (ch != (uint8_t)(curr+1)) break;
+    ch = fl.get();
+    if (ch != (uint8_t)(curr+2)) break;
+    curr += 3;
+    first = false;
+  }
+  int rc = 0;
+  if (fl.tellp() != end)
+  {
+     cout << "error at position: " << fl.tellp() << endl;
+     rc = 1;
+  }
+  else cout << "ok" << endl;
+  fl.close();
+  return rc;
+}

test/daemon.conf

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+{
+  "http_port": 8080,
+  "rtsp_port": 8854,
+  "http_base_dir": "./webui/build",
+  "log_severity": 3,
+  "playout_delay": 0,
+  "tic_frame_size_at_1fs": 192,
+  "max_tic_frame_size": 1024,
+  "sample_rate": 48000,
+  "rtp_mcast_base": "239.1.0.1",
+  "rtp_port": 5004,
+  "ptp_domain": 0,
+  "ptp_dscp": 48,
+  "sap_interval": 30,
+  "syslog_proto": "none",
+  "syslog_server": "255.255.255.254:1234",
+  "status_file": "./demo/status.json",
+  "mdns_enabled": false,
+  "interface_name": "lo",
+  "mac_addr": "01:00:5e:01:00:01",
+  "ip_addr": "127.0.0.1"
+}

test/status.json

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+{
+  "sources": [
+  {
+    "id": 0,
+    "enabled": true,
+    "name": "ALSA Source 0",
+    "io": "Audio Device",
+    "max_samples_per_packet": 48,
+    "codec": "L24",
+    "ttl": 15,
+    "payload_type": 98,
+    "dscp": 34,
+    "refclk_ptp_traceable": false,
+    "map": [ 0, 1 ]
+  }  ],
+  "sinks": [
+  {
+    "id": 0,
+    "name": "ALSA Sink 0",
+    "io": "Audio Device",
+    "use_sdp": true,
+    "source": "http://127.0.0.1:8080/api/source/sdp/0",
+    "sdp": "v=0\no=- 657664 657666 IN IP4 127.0.0.1\ns=AES67 daemon 000a0900 ALSA Source 0\nc=IN IP4 239.1.0.1/15\nt=0 0\na=clock-domain:PTPv2 0\nm=audio 5004 RTP/AVP 98\nc=IN IP4 239.1.0.1/15\na=rtpmap:98 L24/48000/2\na=sync-time:0\na=framecount:48\na=ptime:1\na=mediaclk:direct=0\na=ts-refclk:ptp=IEEE1588-2008:00-1D-C1-FF-FE-50-36-33:0\na=recvonly\n",
+    "delay": 576,
+    "ignore_refclk_gmid": true,
+    "map": [ 0, 1 ]
+  }  ]
+}