Audio Track Selection (1 Viewer)

[m.woessner]

Hi,

since some svns, MP will select AC3 audio, even if "prefer AC3" is not checked and a mpeg audio track with matching language is present.

I consider this a bug, as for me with SPDIF out, mpeg will be upmixed by my amplifier, while AC3 2/0 will just play on 2 channels. So most of the time, mpeg audio is the best choice for me (if AC3 3/2/1 is not avalable).

It would be great, if audio could be selected by preference:

AC3 3/2/1, matching language
MPEG, matching language
AC3 2/0, matching language
AC3 3/2/1, any language
MPEG, any language
AC3 2/0, any language

At least MP should default to MPEG, when "prefer AC3" is not checked.

Nice regards,
Markus


TV-Server Version: tvengine3-12-02-2007--01-40h--Rev16589
MediaPortal Version: MediaPortal-svn--12-02-2007--01-00-Rev16589.exe
MediaPortal Skin: Blue2 wide
Windows Version: Windows XP SP2
CPU Type: Athlon 64 X2 3800+
HDD: 300 GB SATA
Memory: 2 GB
Motherboard:
Motherboard Chipset: nVidia nForce4
Motherboard Bios:
Video Card: nVidia Geforce 8500 GT
Video Card Driver:
Sound Card: nVidia nForce (onboard)
Sound Card AC3: nVidia nForce (onboard SP/DIF)
Sound Card Driver:
1. TV Card: TwinHan DTV Sat-CI
1. TV Card Type:
1. TV Card Driver: BDA Driver 1.2.3.8
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply: 420W
Remote:
TV: LCD Beamer, 1280x720
TV - HTPC Connection: VGA
Satelite Dish: 100cm
Satelite Switch: 9/16 Switch with DiSEqC 1.2
Number of LNBs: 2

 

[gibman]

All good suggestions.

Although MP cant differentiate between ac3 2.0 and ac3 5.1
Unless it's part of the audio track description, the ones u get listed in the audio track menu.

/gibman

 

[m.woessner]

Thanks for the answer,

OK, I understand - AC3 is just a data stream to MP, it has no idea what it really means to the audio codec/amplifier...

Does MP have access to the bitrate of the audio track?

I would think it could then be possible to make the audio track selection based on the bitrate:

AC3, matching language, bitrate over a given threshold
MPEG, matching language
Any audio track, matching language
...

Anyway - do you know why MP selects AC3 now by default, even if MPEG is avalable?

Nice regards,
Markus

 

[gibman]

could u provide me with your mediaportal.log and tv.log on one of these channels causing troubles ?

MP just sees and ac3 stream or an mpeg1 stream .. no meta data available.

/gibman

 

[m.woessner]

I attached those logs to the original post.

About the available meta data:

Is this a limitation of tsreader, tvclient or mediaportal?
No way to get those informations?

Nice regards, Markus

 

[gibman]

Thx for the logs;
try this one attached.

It's not implemented.
this requires a complete parsing and analysis of the stream data.


/gibman

 

[m.woessner]

Thank you - this fixes the problem.
Aspect ratio error (see my other post) is still there.

Any idea on that?

Another thing:

Mediaportal crashed on exit with an GPF, but I do not think, this is a new bug.
I have stability issues with the tv plugin in the latest SVNs anyway.

It started after 16549 which was the latest stable release I tested.

Nice regards,
Markus

 

[MPUserFromGER]

I can confirm the aspect ration issue.
This seems to be a side effect of the audio selection fix. Before it worked perfectly but since the audio election fixes, I am experiencing the aspect ratio problem also very sporadically. Any logs required?

 

[gibman]

The audio fix doesnt have anything to do with the AR issue.
Again, please explain very detailed what the problem is.
Perhaps create a new thread for it

/gibman

 

[pnyberg]

Gibman: Is this also a fix for my problems (audio track problem that is) I described here:

https://forum.team-mediaportal.com/showpost.php?p=210001&postcount=15

I had to go back with previous tvplugin.dll form 16542 to get me back on track with audio selection. Also have been having problems with selecting audio streams when watching TV - it just freezes every time. Have to stop TV and start TV again to get it going again. That problem has been around for a long time for me though.

Thanks,