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Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP

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Apr 12, 2012, 2:59 AM

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Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP

#10583: Unable to playback recordings from Panasonic TV via UPnP
--------------------------------------+--------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Keywords: UPNP DLNA TV
Ticket locked: 0 |
--------------------------------------+--------------------------
I am unable to playback recorded shows from MythTV on a Panasonic TX-
P42G15GB TV via UPnP. I simply get the error message on the TV: "Cannot
read file"

If I manually copy the recorded shows to the videos storage group, the TV
plays the show back with no problem whatsoever. This leads me to believe
that when the recording file is served to the TV in the Recordings storage
group, something different is happening in the UPnP code, meaning that the
TV is unable to read the file.

Other UPnP clients such as XBMC and VLC can playback the recordings ok, no
matter what type of storage group the recording is in, so it's not a
widespread problem, just specific to the TV we have/Panasonic TVs in
general - this is the only Panasonic TV in the house, so I can't say which
for sure.

No errors are showing up in the backend log (with -v all) and
unfortunately the error message above is all I've got from the TV.

I've tried to work this one our for myself, but I'm unable to find any
more information from logs why this is happening. I'm not a developer, but
I do work for a software development company, so I have gained *some*
experience working with code. I've therefore tried to have a look into the
UPnP code myself, just to try to find some sort of direction to go with
this, however I wasn't able to spot anything.

I would appreciate any help I can get on this - at the moment, I'm working
around the issue by manually moving recording files from the Recordings
storage group to the Videos one, every time someone wants to watch
something that's been recorded. This is becoming a bit of chore - don;t
mean to sound ungrateful though!

Attached files:
not-working.mythbackend.log: Log file taken when trying to playback a
recording as a "Recording" on the TV. (mythbackend -v all)
working.mythbackend.log: Log file taken when successfully playing a
recording as a "Video" on the TV. (mythbackend -v all)

If there's any more info needed, I'll be more than happy to provide it.
I'm wondering if there's some way I can get more output from what the
backend is actually sending to the TV, then diffing the output between a
"Recording" and a "Video"?

Thank you.

Joe

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Apr 12, 2012, 3:06 AM

Post #2 of 36 (657 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

#10583: Unable to playback recordings from Panasonic TV via UPnP
----------------------------------+----------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: UPNP DLNA TV | Ticket locked: 0
----------------------------------+----------------------------

Comment (by joe@…):

My thread from mythtv-users list is here: http://www.gossamer-
threads.com/lists/mythtv/users/510224

Unfortunately, no-one was able to offer any assistance.

Also, I missed off the following from my initial ticket post:

$ mythbackend --version
MythTV Version : v0.25
MythTV Branch : fixes/0.25
Network Protocol : 72
Library API : 0.25.20120408-1
QT Version : 4.6.2
Options compiled in:
linux profile use_hidesyms using_alsa using_oss using_pulse
using_pulseoutput using_backend using_bindings_perl using_bindings_python
using_bindings_php using_crystalhd using_dvb using_firewire using_frontend
using_hdhomerun using_ceton using_hdpvr using_iptv using_ivtv
using_joystick_menu using_libcrypto using_libdns_sd using_libxml2
using_lirc using_mheg using_opengl_video using_qtwebkit using_qtscript
using_qtdbus using_v4l2 using_v4l1 using_x11 using_xrandr using_xv
using_bindings_perl using_bindings_python using_bindings_php
using_mythtranscode using_opengl using_vdpau using_ffmpeg_threads
using_live using_mheg using_libxml2

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583#comment:1>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Apr 12, 2012, 1:02 PM

Post #3 of 36 (652 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

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Apr 13, 2012, 4:06 AM

Post #4 of 36 (642 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

#10583: Unable to playback recordings from Panasonic TV via UPnP
----------------------------------+----------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: UPNP DLNA TV | Ticket locked: 0
----------------------------------+----------------------------

Comment (by Joe Nyland <joe@…>):

Replying to [comment:2 J.Pilk@…]:
> I'm interested in this, because I have been thinking of getting a
Panasonic TV.
That's great - I'd have no problem recommending one to you, if we were
able to resolve this issue.[[BR]][[BR]]

> I downloaded the user manual which lists file types that /may/ be
acceptable. I couldn't copy text from the pdf, apparently because of DRM,
but it lists PS (.mpg, .mpeg, .vob, .vro) and TS (.m2ts, .tp, .trp, .ts).
Maybe this could be useful?
That's correct - I'm now able to do a lossless "Auto Detect" transcode in
Myth which conveniently converts the recording from MPEG-TS to MPEG-PS.
Once this has completed, the TV plays the file back with no problems, just
as long as it's not in the "Recordings" group. As I've mentioned above, if
I copy the file to a directory in my "Videos" storage group and re-scan
the library, I'm able to playback the transcoded recording on the TV with
no problems - FF and RW, play pause work great.[[BR]][[BR]]

>
> I also came across a 'WmsClientConfig' post for <DeviceType>
> <$00000409>Panasonic Viera TX-P42G20E (DLNA, 16:9,
1920x1080)</$00000409>
> <$00000419>Panasonic Viera TX-P42G20E (DLNA, 16:9,
1920x1080)</$00000419> that might give hints. I'm not clear what device
might be destroyed if one tried to actually use it.
>
> Google panasonic_viera_tv_dlna_wide_1920x1080.zip
I'm afraid I'm not familiar with what this is. Could you expand on this a
little please?

Thank you for your input.

Joe

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583#comment:3>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Apr 13, 2012, 4:33 AM

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Apr 13, 2012, 4:42 AM

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Apr 13, 2012, 5:21 AM

Post #7 of 36 (645 views)
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Apr 13, 2012, 1:53 PM

Post #8 of 36 (644 views)
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Apr 13, 2012, 2:47 PM

Post #9 of 36 (643 views)
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Apr 16, 2012, 12:39 AM

Post #10 of 36 (630 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

#10583: Unable to playback recordings from Panasonic TV via UPnP
----------------------------------+----------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: UPNP DLNA TV | Ticket locked: 0
----------------------------------+----------------------------

Comment (by Joe Nyland <joe@…>):

Unfortunately, after renaming a recording that I haven't transcoded to
MPEG2-PS (i.e. it's still a TS contanier) to .m2ts and updating the DB
accordingly, I'm still unable to play it back on the TV. As expected
though, I can't play this video back in the 'Videos' group either, as it's
a TS container, not PS. As far as I can make out from the instruction
manual, the TV only supports MPEG2-PS containers.

What's interesting is that last night, I tried to play back some
recordings from XBMC via UPnP from MythTV, but I was unable to get
anything to play from the 'Recordings' folder there too - in other words,
I saw the same behaviour that the Panasonic TV is demonstrating. I know I
said in my original report that XBMC could play files back ok, but my only
guess is that something changed with XBMC's recent major release since my
last test of this issue in XBMC. (OR I didn't test it thoroughly enough to
highlight the problem there!)

I'm going to try to see if I can get XBMC to log why it's failing to play
the 'recordings' back and that hopefully might help shed a little light on
this issue with the TV *fingers crossed*...

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583#comment:9>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Apr 22, 2012, 3:44 PM

Post #11 of 36 (627 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

#10583: Unable to playback recordings from Panasonic TV via UPnP
----------------------------------+----------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: UPNP DLNA TV | Ticket locked: 0
----------------------------------+----------------------------

Comment (by Joe Nyland <joe@…>):

Ok, I've managed to get a full debug log from XBMC which shows an error
when trying to playback a recording from the 'Recordings' folder. I'm
attaching the full log, but the messages I'm referring to is:

23:29:43 T:2889241280 DEBUG: OnPlayMedia
upnp://a28c48d5-cfa5-4e02-a552-52398fb1f699/RecTv%2f0%2fitem%3fChanId%3d1003%26amp%3bStartTime%3d2012%2d04%2d06T20%3a59%3a00
[[br]]23:29:43 T:2889241280 ERROR: CUPnPDirectory::GetResource - no
items returned for object
RecTv/0/item?ChanId=1003&StartTime=2012-04-06T20:59:00
[[br]]23:29:43 T:2889241280 ERROR: Playlist Player: skipping unplayable
item: 0, path
[upnp://a28c48d5-cfa5-4e02-a552-52398fb1f699/RecTv%2f0%2fitem%3fChanId%3d1003%26amp%3bStartTime%3d2012%2d04%2d06T20%3a59%3a00]
[[br]]23:29:43 T:2889241280 DEBUG: Playlist Player: no more playable
items... aborting playback

...so, it looks like this issue is not just isolated to Panasonic TVs
after all. Please let me know what further information is required to
troubleshoot this further.
Thanks.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583#comment:10>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Apr 23, 2012, 1:24 AM

Post #12 of 36 (616 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

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Apr 23, 2012, 7:33 AM

Post #13 of 36 (614 views)
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Apr 24, 2012, 1:18 PM

Post #14 of 36 (608 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

#10583: Unable to playback recordings from Panasonic TV via UPnP
----------------------------------+----------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: UPNP DLNA TV | Ticket locked: 0
----------------------------------+----------------------------

Comment (by Joe Nyland <joe@…>):

Unfortunately I don't seem to be able to get it going - I thought it would
be something simple like editing the start time for the recording to an
hour before, but this still fails.

Has anyone got any suggestions?

To summarise:
- I'm unable to playback 'recordings' from MythTV in XBMC.
I get the message "ERROR: CUPnPDirectory::GetResource? - no items
returned for object
RecTv?/0/item?ChanId?=1003&StartTime?=2012-04-06T20:59:00" when I try
to play something back like this.
- I get the same behaviour on my Panasonic TV over UPnP, but I can't say
for sure it's the same root cause as I'm unable to obtain debug logs from
the TV - I'm assuming it's the same issue though, as it the exact same
behaviour as above.
- I am able to play back recordings via UPnP in XBMC and on the Panasonic
TV, provided I have copied them to the 'videos' storage group and scanned
for new videos.
- I am able to play back 'recordings' and 'videos' in VLC, which is
strange, though.

Thanks.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583#comment:13>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Apr 25, 2012, 12:24 AM

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Apr 25, 2012, 1:52 AM

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Apr 30, 2012, 3:38 AM

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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

#10583: Unable to playback recordings from Panasonic TV via UPnP
----------------------------------+----------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: UPNP DLNA TV | Ticket locked: 0
----------------------------------+----------------------------

Comment (by J.Pilk@…):

I now have a current-model Panasonic TV, Series E5, and Myth boxes running
0.25/SL6 and 0.24.3/F15. Both work well via UPnP with some content but
not all. Recordings are from dvb-t (SD) and dvb-t2 (HD) in the UK.

Unprocessed recordings usually play well, as do recordings that have been
cut with an experimental tool and are still mpeg2-ts. I have one HD
recording in which the sound format changed at a programme transition.
Myth played it uncut but vlc hung. After cutting, both will play it but
the TV will not. As a Video, Myth plays it with no sound. Mediainfo says
the cut file has no PAT/PMT. I still have the original and may try
another cut.

Most of my SD recordings have been cut using mythcutprojectx, which, like
mythtranscode -m, converts them to mpeg2-ps; they do not play via the net.
The TV manual suggests that the TV expects an .mpg file to be PS, but in
fact it seems happy to play it as TS.

I haven't done much with the Videos. In 0.24 I see only Video Root, with
one unplayable .iso file. In 0.25 I now see four copies of everything.
Some of them play.

http://www.gossamer-threads.com/lists/mythtv/users/515566#515566

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583#comment:16>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Apr 30, 2012, 4:02 AM

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Apr 30, 2012, 8:09 AM

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May 1, 2012, 10:11 AM

Post #20 of 36 (572 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

#10583: Unable to playback recordings from Panasonic TV via UPnP
----------------------------------+----------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: UPNP DLNA TV | Ticket locked: 0
----------------------------------+----------------------------

Comment (by Joe Nyland <joe@…>):

Glad you seem to be having slightly more successful experience than I.
Unfortunately, my TV is still not playing back 'recordings', only 'videos'
as before.

My instruction manual for my model Panasonic TV clearly states that
MPEG2_PS is required - it makes no mention of MPEG2-TS, so I'm assuming
this will never work on my TV (it definitely doesn't currently)

I think the idea that you have touched on before about the format change
(possibly between 0.24 and 0.25) of the start time seems like the most
likely cause to this. i.e. The actual transcoded files playback ok when in
the 'videos' group which of course doesn't use the starttime filed in the
DB, so it has no problem serving up the correct file via UPnP. However,
when the same files are selected via UPnP from 'recordings' it doesn't
seem to be able to match the recording file up to the record in the
database in order to serve it via UPnP. I just don't know how to fix it.

I'm running this version currently:
MythTV Version : v0.25-58-g58fd2a5
MythTV Branch : fixes/0.25
Network Protocol : 72
Library API : 0.25.20120408-1
QT Version : 4.6.2

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583#comment:19>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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May 1, 2012, 12:53 PM

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May 1, 2012, 12:56 PM

Post #22 of 36 (575 views)
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May 1, 2012, 1:11 PM

Post #23 of 36 (573 views)
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Re: Ticket #10583: Unable to playback recordings from Panasonic TV via UPnP [In reply to]

#10583: Unable to playback recordings from Panasonic TV via UPnP
----------------------------------+----------------------------
Reporter: joe@… | Owner: dblain
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - UPnP | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: UPNP DLNA TV | Ticket locked: 0
----------------------------------+----------------------------

Comment (by Joe Nyland <joe@…>):

Replying to [comment:20 J.Pilk@…]:
> I'm not sure if you've said whether your TV can play a 'raw' recording
(TS) as a Video. It would be perverse if it can't play them at all,
because AIUI that's what it does when playing live, plus of course some
extra PID filtering to extract it from the mux.
>

No, you're right, I've not specifically tried this (at least I can't
remember it), I've only tried PS files from 'videos' over UPnP. I'll try
and give this a go later tonight - unfortunately this TV has been
'claimed' for tonight :-). It would be interesting to see if this works or
not.

> I've just tried using the mythlink script to create links in the Videos
directory. They're playable in the (0.25) frontend, but at present UPnP
doesn't see them.

Yes, I've had some success with using mythlink.pl as a bit of a work
around for now. 'mythutil --scanvideos' is your best way of getting new
videos to show up on the UPnP clients, after adding new videos to 'Videos'
BTW.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10583#comment:22>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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May 1, 2012, 3:09 PM

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May 3, 2012, 2:49 PM

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