[Bug 796667] New: mpegtsmux doesn't write PAT in audio-only mux
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Mon Jun 25 13:25:36 UTC 2018
https://bugzilla.gnome.org/show_bug.cgi?id=796667
Bug ID: 796667
Summary: mpegtsmux doesn't write PAT in audio-only mux
Classification: Platform
Product: GStreamer
Version: 1.14.1
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-bad
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: mcfletch at vrplumber.com
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
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
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