LAV Filters - DirectShow Media Splitter and Decoders

[nevcairiel]

Thats a known problem, and there is still alot of room for improvement in the PGS filtering.

[jmone]

How about just timing them out after say 5 seconds or so?

[nevcairiel]

I rather work on the proper solution once time permits.

[jmone]

Sounds good

[Mercury_22]

@Nev
I thought that LAVSplitter it's able to play ts /m2ts files with 2 video streams (just the first video stream ) am I wrong ? cause it can't play e.g. this one (http://www.multiupload.com/MV7RNMR1LW) On the full m2ts file it can't even start to play (MPC-HC it's "freezing") but on the sample it's playing just a black screen while MPC-HC's internal splitter it's working OK

P.S. Before you ask yes it's straight from Blu-ray :)

[nevcairiel]

It probably breaks because the second stream seems .. broken. Is that a 3D Blu-ray? Either that, or its some funny PIP stream.
I'll take a look tomorrow why it doesn't play the working stream.

[jmone]

Quick Q - Where/How are external sub files (eg idx/sub) displayed (eg ignored by LAVSplitter as they are not part of the "file" but then decoded by FFDSHOW?)

[nevcairiel]

LAV Splitter does not care about external files at all, the player needs to process those (or if ffdshow does it itself, then that).
In MPC-HC, its actually the player itself that loads external files, like audio and sub streams.

[Mercury_22]

It probably breaks because the second stream seems .. broken. Is that a 3D Blu-ray? Either that, or its some funny PIP stream.
I'll take a look tomorrow why it doesn't play the working stream.
No it's not a 3D Blu-ray and again MPC-HC's internal splitter it's playing it fine:confused:

http://bluray.highdefdigest.com/3563/crimsonwing.html

[assassinhtpc]

Any issues with live tv files?

Can anyone help me with this question?

[Kaotech]

Hello, with a 5.1 DTS MA Track, Lavaudio set the track at 7.1 with 0.26.

[nevcairiel]

MPC-HC's internal splitter it's playing it fine:confused:

I wish people would stop with these apple and orange comparisons. How is the MPC-HC splitter related to LAV Splitter at all?
Let me answer that for you: It is not, not in *any* way. It does not share *any* code. LAV Splitter is unique, as its the *only* DirectShow splitter that uses ffmpeg for demuxing.

PS:
Your file is fixed.

[assassinhtpc]

So has anyone used LAV with live tv?

[nevcairiel]

Suggestion: Instead of asking if something works, just go out and try it.

[assassinhtpc]

Suggestion: Instead of asking if something works, just go out and try it.

Well I thought since I did a search in this massive thread and couldn't find any mention of it that it might not be possible.

And I haven't tried it but a friend has and it didn't work.

Therefore I just asked.

From a friend:
I am not getting it to work with live TV. I am just starting to delve into that mystery and the doom9 thread is huge. I'll get back to you on that ome..

[Andy o]

At least take the time to write all relevant information if you want people to take the time to help you out. What "live TV" files do you mean? What format? What player? What OS? etc etc.

[assassinhtpc]

At least take the time to write all relevant information if you want people to take the time to help you out. What "live TV" files do you mean? What format? What player? What OS? etc etc.

No problem. Thanks for offering to help.

It would be a live digital tv stream from an OTA antenna, not a stored file on a HDD, that is being rendered so it is the Microsoft decoders built into Win7x86 using WMC for Live TV playback that are being messed up by LAV.

Also, I wanted to do some searching but what the issue is that in live tv it will get into a 2-second or so audio loop that lasts about maybe a minute before it posts up the file is missing. This is the exact same issue I incountered with Shark007 until I switched to Win7x86 so I could use the alternate Video decoder which fixed the Audio problem.

[assassinhtpc]

Suggestion: Instead of asking if something works, just go out and try it.

Didn't mean to offend you. I have spent the last few days trying to search for a discussion on this to help him out and have come up empty.

Just hoping you could help.

[noee]

Some of the guys on the jRiver forums, IIRC, are doing jRiver TV with LAVSplitter, or they're giving it a go, perhaps they'll chime in.

[assassinhtpc]

Some of the guys on the jRiver forums, IIRC, are doing jRiver TV with LAVSplitter, or they're giving it a go, perhaps they'll chime in.

Is there anything free that is a simple fix?

[Andy o]

No problem. Thanks for offering to help.

It would be a live digital tv stream from an OTA antenna, not a stored file on a HDD, that is being rendered so it is the Microsoft decoders built into Win7x86 using WMC for Live TV playback that are being messed up by LAV.

Also, I wanted to do some searching but what the issue is that in live tv it will get into a 2-second or so audio loop that lasts about maybe a minute before it posts up the file is missing. This is the exact same issue I incountered with Shark007 until I switched to Win7x86 so I could use the alternate Video decoder which fixed the Audio problem.

Are you by any chance using HDMI with an ATI card? If so, turn off the media center menu sounds, and see if it helps.

[andyvt]

It would be a live digital tv stream from an OTA antenna, not a stored file on a HDD, that is being rendered so it is the Microsoft decoders built into Win7x86 using WMC for Live TV playback that are being messed up by LAV.


WMC uses the SBE to record content. Live TV works a little different from Recorded TV in that it doesn't use a circular buffer, but both hit the disk.

None of the LAV filters should get used for TV playback in WMC, if they are it's probably because the filter has a very high merit value. Changing that to a more reasonable # might help.

[assassinhtpc]

WMC uses the SBE to record content. Live TV works a little different from Recorded TV in that it doesn't use a circular buffer, but both hit the disk.

None of the LAV filters should get used for TV playback in WMC, if they are it's probably because the filter has a very high merit value. Changing that to a more reasonable # might help.

Thanks so much. How do I change their merit value?

[andyvt]

Thanks so much. How do I change their merit value?

I usually go with GraphStudio. If UAC is enabled (or you're running as a user), you will need to right click and run as administrator.

I did a brief write up (http://babgvant.com/blogs/andyvt/archive/2008/11/30/understanding-merit-to-optimize-playback.aspx) on how to use GraphStudio a while back; don't think anything has changed so much that it's no longer valid.

[assassinhtpc]

I usually go with GraphStudio. If UAC is enabled (or you're running as a user), you will need to right click and run as administrator.

I did a brief write up (http://babgvant.com/blogs/andyvt/archive/2008/11/30/understanding-merit-to-optimize-playback.aspx) on how to use GraphStudio a while back; don't think anything has changed so much that it's no longer valid.

Absolutely perfect. I can't thank you enough.

[assassinhtpc]

Are you by any chance using HDMI with an ATI card? If so, turn off the media center menu sounds, and see if it helps.

No it is the integrated intel GPU on an i3 550 (Clarkdale) with no discrete graphics card.

[assassinhtpc]

I usually go with GraphStudio. If UAC is enabled (or you're running as a user), you will need to right click and run as administrator.

I did a brief write up (http://babgvant.com/blogs/andyvt/archive/2008/11/30/understanding-merit-to-optimize-playback.aspx) on how to use GraphStudio a while back; don't think anything has changed so much that it's no longer valid.

Holy hexidecimal!

Do you have any suggested initial settings that I should try?

[jmone]

I have no issues with "Live TV", "Timeshifting Live TV", or "Recorded Live TV" using LAVAudio and MC16. In fact thanks to feedback from nevcairiel a bug was fixed in the MC16 TV Splitter (JTV) so you can now switch between DVB-T channels with different format Audio without issue. One reason it plays "nice" is that MC16 uses its own splitter to present just the single Video and Audio streams instead of just dumping the whole collection of DVB-T Sub Channels in one file.

[assassinhtpc]

I have no issues with "Live TV", "Timeshifting Live TV", or "Recorded Live TV" using LAVAudio and MC16. In fact thanks to feedback from nevcairiel a bug was fixed in the MC16 TV Splitter (JTV) so you can now switch between DVB-T channels with different format Audio without issue. One reason it plays "nice" is that MC16 uses its own splitter to present just the single Video and Audio streams instead of just dumping the whole collection of DVB-T Sub Channels in one file.

Understood.

I think it would be nice if there was a free option to make this work too.

[Andy o]

No it is the integrated intel GPU on an i3 550 (Clarkdale) with no discrete graphics card.

I don't know much about Intel, but you might still wanna try turning off MC sounds see if that makes a difference.

[wo0zy]

Understood.

I think it would be nice if there was a free option to make this work too.

Works fine with Mediaportal.

Wo0zy

[nevcairiel]

TV applications typically have their own source filter and mpegts demuxer, therefor LAV Splitter doesnt really fit into that picture to begin with.

LAV Audio might work with it, depending on the source filter. If the source unpacks the PES data, it will work, if the source directly sends the PES stream without unpacking, it will not.
FWIW, DVBViewer works fine with LAV Audio and LAV CUVID.

[jmone]

Wo0zy

Now there is a NIC that broought back a flood of early HTPC memories trying to get those Intel G33 working at 24hz (shudder). I expect to see archibael show up next!

[Gleb Egorych]

FWIW, DVBViewer works fine with LAV Audio and LAV CUVID.
My results: LAV Audio - yes, LAV CUVID - no. On channel change - no picture.

[Aleksoid1978]

LAV very bad with this sample http://www.multiupload.com/MV7RNMR1LW:
1 - playback don't start, black video in MPC-HC
2 - second video stream detect with error.
3 - detect many "fake" subtitle.

Play fine with MPC-HC internal splitter.

[pankov]

My results: LAV Audio - yes, LAV CUVID - no. On channel change - no picture.
Gleb,
if you wait a few seconds (10-15) the video will come.
Or you can disable "Fast Channel Switching" in Options -> TV + Radio and it will work suddenly but you'll get a black screen in between.
I thought it was only me that had problems with this fast channel switching but I guess it was actually LAV CUVID that is taking too long to adapt/switch ... or potentially clear it's buffers.
Nev,
do you use DVBViewer? Is there anything that can be done to improve it?

[Mercury_22]

LAV very bad with this sample http://www.multiupload.com/MV7RNMR1LW:
1 - playback don't start, black video in MPC-HC
2 - second video stream detect with error.
3 - detect many "fake" subtitle.

Play fine with MPC-HC internal splitter.

:) Already reported
@Nev
I thought that LAVSplitter it's able to play ts /m2ts files with 2 video streams (just the first video stream ) am I wrong ? cause it can't play e.g. this one (http://www.multiupload.com/MV7RNMR1LW) On the full m2ts file it can't even start to play (MPC-HC it's "freezing") but on the sample it's playing just a black screen while MPC-HC's internal splitter it's working OK

P.S. Before you ask yes it's straight from Blu-ray :)
and "fixed"
I wish people would stop with these apple and orange comparisons. How is the MPC-HC splitter related to LAV Splitter at all?
Let me answer that for you: It is not, not in *any* way. It does not share *any* code. LAV Splitter is unique, as its the *only* DirectShow splitter that uses ffmpeg for demuxing.

PS:
Your file is fixed.
@Nev :thanks: and I was just trying to say that the file works (with other splitters)
@Aleksoid Can you fix MPC-HC's MPEG splitter to detect the DTS Express audio too ?

[JaylumX]

Nevcaireiel, is it possible as a feature to implement in the Lavfilters splitters a method of switching video streams for Bluray - for example my King Kong, Mirrors and Gladiator bluray have more one version - Theatrical, Directors Cut and/or Extended cuts on one BD. When using MPC-HC to play the disk it always defaults to playing the longer version. Can you implement that feature of stream switching or is that something i should be asking the MPC-HC coder(s)

[Gleb Egorych]

Gleb,
if you wait a few seconds (10-15) the video will come.
Or you can disable "Fast Channel Switching" in Options -> TV + Radio and it will work suddenly but you'll get a black screen in between.
You're right, disabling the option does the job, thanks. However, deinterlacing problems with DVB streams still persist. So usage of LAV CUVID in DVBViewer is limited at the moment.

[jj666]

JaylumX,

I believe the best way to achieve what you want is to find the correct playlist file for the different versions using BDINFO. Then run the appropriate playlist file.

Cheers,

-jj-

[SamuriHL]

Nevcaireiel, is it possible as a feature to implement in the Lavfilters splitters a method of switching video streams for Bluray - for example my King Kong, Mirrors and Gladiator bluray have more one version - Theatrical, Directors Cut and/or Extended cuts on one BD. When using MPC-HC to play the disk it always defaults to playing the longer version. Can you implement that feature of stream switching or is that something i should be asking the MPC-HC coder(s)

That feature is on Nev's list to implement. No ETA.

[assassinhtpc]

TV applications typically have their own source filter and mpegts demuxer, therefor LAV Splitter doesnt really fit into that picture to begin with.

LAV Audio might work with it, depending on the source filter. If the source unpacks the PES data, it will work, if the source directly sends the PES stream without unpacking, it will not.
FWIW, DVBViewer works fine with LAV Audio and LAV CUVID.

The problem is that if someone uses LAV they might not be able to use WMC Live TV.

Do you think that changing the merits will correct this problem?

[Andy o]

Nev, I you have planned output bit depth selection for the future, right? If so, could you please consider an option akin to ffdshow's "16-bit LPCM" (not "16-bit integer")? I've just found out that PowerDVD 8's audio decoder can connect to ffdshow's 16-bit LPCM output in order to apply Dolby Headphone, which as far as I can tell is the only way to get DH in a DirectShow player (foobar2000 does it (http://www.hydrogenaudio.org/forums/index.php?showtopic=39404) by way of the Cyberlink DH dll).

If it's not too much to ask :)

[nevcairiel]

Nev, I you have planned output bit depth selection for the future, right? If so, could you please consider an option akin to ffdshow's "16-bit LPCM" (not "16-bit integer")? I've just found out that PowerDVD 8's audio decoder can connect to ffdshow's 16-bit LPCM output in order to apply Dolby Headphone, which as far as I can tell is the only way to get DH in a DirectShow player (foobar2000 does it (http://www.hydrogenaudio.org/forums/index.php?showtopic=39404) by way of the Cyberlink DH dll).

If it's not too much to ask :)

I don't think i'll be doing that.

[nevcairiel]

LAV very bad with this sample http://www.multiupload.com/MV7RNMR1LW:
1 - playback don't start, black video in MPC-HC
2 - second video stream detect with error.
3 - detect many "fake" subtitle.

Play fine with MPC-HC internal splitter.

I don't think the subtitles are fake, it detects them properly, and the subtitle PIDs are set properly. Looks just fine.
BTW, the MPC-HC splitter doesn't detect the second video stream at all on the beginning, it just finds it after a few seconds of playback. I think its either broken, or the stream starts really late in the file, i am filtering video streams without a resolution now.
Anyhow, i also increased the size of the probe buffer, which makes it detect the stream.

[nevcairiel]

The problem is that if someone uses LAV they might not be able to use WMC Live TV.


I do not care about any interaction with a seriously locked down application like WMC. Its a horrible player as it is.

[madshi]

3 - detect many "fake" subtitle.
FWIW, eac3to detects a bunch of PGS subtitles, too, so I'd say that LAV Splitter probably is correct about the subtitles.

[Andy o]

I don't think i'll be doing that.

OK, thanks.

[assassinhtpc]

I do not care about any interaction with a seriously locked down application like WMC. Its a horrible player as it is.

Wow. Okay then.

[andyvt]

I do not care about any interaction with a seriously locked down application like WMC. Its a horrible player as it is.

What about making it easier for users to control the filter's merit?

The default merit is so high that it will most likely be considered in every graph that isn't explicitly built with direct connections.