[Bug] Playback hangs when audiotype changes (2 Viewers)

[Elof]

Hi,

The local news in the public service channels in Sweden is using different audio coding than the national broadcasts which has been a problem through the years, see https://forum.team-mediaportal.com/...r-90/swedish-problem-test-my-recording-47240/. It was solved in 1.0.2 but seems to be back, in some way or another, in 1.1RC3. The switch from national to local shows works most of the time but the playback stops every time when they switch from local to national shows. If you skip forward 15 seconds it starts again with the correct sound.

To produce the logs I've stopped watching a recorded show just before the switch from local to national and restarted MP in debug mode. I then resume playback from last position and wait until the playback hangs. After some seconds I skip forward 15 seconds and checks so that everything works as it should.

I hope you can find a way to solve this and will do everything I can to help you, just tell me what you need!

 

[romuz]

Hi
Looks similar as mantised bug
0002914: When using RTSP, audio/video format change may cause video playback to hang in a loop - MediaPortal Bugtracker

Sadly it is hard to fix. It possible wont be fixed before MP1.1

 

[jameson_uk]

Are you running a multi-seat setup and only having issues on client?

I guess if this is a problem with RTSP you can work around it by turning of RTSP

 

[romuz]

According to logs rtsp are in use.

 

[jameson_uk]

According to logs rtsp are in use.

Indeed but I made a little boo boo a while ago and ended up using RTSP in single seat
was trying to establish if user was doing the same

 

[Elof]

Yes, I'm using multi seat with one server equipped with four TV-cards, two dedicated HTPC-clients and some computers that from time to time is used for MP. The server is never affected but all clients, regardless codecs used etc all behaves the same. It sure does look like a similar problem as described in 2914, perhaps that issue can be extended with this information?

 

[jameson_uk]

Yes, I'm using multi seat with one server equipped with four TV-cards, two dedicated HTPC-clients and some computers that from time to time is used for MP. The server is never affected but all clients, regardless codecs used etc all behaves the same. It sure does look like a similar problem as described in 2914, perhaps that issue can be extended with this information?

To confirm this is the same issue could you try using UNC instead of RTSP.
Open on MP Config with /DebugOptions switch
under TV you should see a Debug Options tab
in there tick the "multi-seat setup: use UNC Paths" option
make the timeshift and recording folders on server available as network shares

Do you get the same error then? (logs should not mention RTSP if this is working)

 

[Elof]

I would say that it's worse when you use UNC.

With RTSP the playback stops but you can continue to watch by skip forward 15 seconds. With UNC the playback continues after the audio change but with loud squeeks and noices (hard to describe, anyone old enough to have tried to play a dvr-ms recording on a non-MCE Windows XP knows what I mean) and video with a lot of skips and stills. After some seconds MP hangs and you has to use task manager to stop it.

This only happens when you play the part with the change, if you do a skip from the last part of the local show to the beginning of the national show everything works as it should so it isn't a codec problem.

Something that could be a side effect I've seen some time before but not thought more of is a number of empty recordings. I have a scheduled recording of the local news every day that should record the local news between 19:15 and 19:30. Since I have five minutes buffer before and after the recording it should be between 19:10 and 19:35. It start as it should but end 19:30 and starts to create a lot of empty recordings, this time 12 during the five minutes between 19:30 and 19:35 when it stops. On the other hand, I see the same thing with Simpsons 20:30 - 20:33 (ten empty recordings) so that could be a completely different problem. I add the tv.logs if it can give you any clue.

 

[morpheus_xx]

AW: Playback hangs when audiotype changes

please always add tswriter log to your posts!

 

[gibman]

what is audio encoding is used on the channel in question ?

aac ?

if yes, you could try and install divx codec pack:
DivX Plus Software ? Thank you for downloading | DivX.com

under aac audio decoder in MP config, try and select divx audio codec instead.

it worked for me on channels that had noisy sounding audio tracks

/gibman

I would say that it's worse when you use UNC.

With RTSP the playback stops but you can continue to watch by skip forward 15 seconds. With UNC the playback continues after the audio change but with loud squeeks and noices (hard to describe, anyone old enough to have tried to play a dvr-ms recording on a non-MCE Windows XP knows what I mean) and video with a lot of skips and stills. After some seconds MP hangs and you has to use task manager to stop it.

This only happens when you play the part with the change, if you do a skip from the last part of the local show to the beginning of the national show everything works as it should so it isn't a codec problem.

Something that could be a side effect I've seen some time before but not thought more of is a number of empty recordings. I have a scheduled recording of the local news every day that should record the local news between 19:15 and 19:30. Since I have five minutes buffer before and after the recording it should be between 19:10 and 19:35. It start as it should but end 19:30 and starts to create a lot of empty recordings, this time 12 during the five minutes between 19:30 and 19:35 when it stops. On the other hand, I see the same thing with Simpsons 20:30 - 20:33 (ten empty recordings) so that could be a completely different problem. I add the tv.logs if it can give you any clue.