The following stream:

```gst-launch-1.0 mpegtsmux name=muxer prog-map=programs,sink_102=1 ! buffermonitor name=test-src-8002 ! filesink location=test.ts audiotestsrc wave=sine ! audio/x-raw,channels=2 ! avenc_ac3 bitrate=128 ! muxer.sink_102```

produces a .ts file which does *not* include any PAT tables on a 1.14.1 source-tarball build on Centos7 (or on a 1.14.0 build):

```$ tsinfo -max 50000000 test.ts 
Reading from test.ts
Scanning 50000000 TS packets
EOF

Found 0 PAT packets and 0 PMT packets in 50000000 TS packets```

The same pipeline works fine *IFF* there is a video stream involved. The same pipeline also works *correctly* on the packaged 1.14.0 Ubuntu 18.04 version of gstreamer. The difference between the two 1.14.0 versions appears to be down to a check to see if the