LAV Filters - DirectShow Media Splitter and Decoders

[Asmodian]

More information is likely required to make sense of your bug report.

What became incorrectly reproduced? All HTTP Live Streaming? How did you test it? Do you have an example we could test with to reproduce the issue? What player, hardware, OS, and driver versions are you using?
:thanks:

[nevcairiel]

Try with the latest nightly version, https://files.1f0.de/lavf/nightly/LAVFilters-0.71.0-32.exe, it may solve HTTP related issues.

[Leader]

Asmodian

What became incorrectly reproduced?
After the release of version 0.71, the "Youtube HLS" was incorrectly reproduced.
All HTTP Live Streaming?
Yes, all HLS.
How did you test it? Do you have an example we could test with to reproduce the issue? What player, hardware, OS, and driver versions are you using?
:thanks:
Just opened a link to the "YouTube HLS" in the "MPC-BE Player".

I can give an example and a playback algorithm for you:

1. Opened the YouTube HLS link: https://www.youtube.com/watch?v=yvdXkHuV0DE
2. Opened the properties of the "EVR-CP Video Renderer"
3. I found the following problems, look at the screenshot: http://ibb.co/giwRSS

It is these problems with HLS that arise in all subsequent night builds, after the release of version 0.71.

[Leader]

Try with the latest nightly version, https://files.1f0.de/lavf/nightly/LAVFilters-0.71.0-32.exe, it may solve HTTP related issues.
I checked this build. Unfortunately, there were problems with the HLS in it, they did not improve.

[lvqcl]

Not sure about those numbers, but if I press Ctrl+J ("Display Stats") I sometimes see drops in the graph like this: https://i.imgur.com/mxp07Tq.png (MPC-BE x64 1.5.2 build 3544, if it matters, and LAV 0.71.0-32)

[Leader]

Not sure about those numbers, but if I press Ctrl+J ("Display Stats") I sometimes see drops in the graph like this: https://i.imgur.com/mxp07Tq.png (MPC-BE x64 1.5.2 build 3455, if it matters, and LAV 0.71.0-32)

All right. These graphs just the same and indicate jerks of frames, during playback. And they are just the same and appear at the time of the jump in frame rate.

What does it mean to jump frames? This means that the frame rate is unstable and varies, for example, instead of 30 constant FPS, a jump to 31.5, or 32 and back to 28, which is already below 30. And this is naturally wrong. So it turns out some kind of warping, some interval (range) [~ 28 FPS -> ~ 32 FPS].

[Schwartz]

I can confirm that this happens since the version following 0.70.2.1-git. This, along with freezing. I made an issue about the other thing on GitHub and forgot about the weird frame stutter.

[lvqcl]

So, is it fixed on current nightly (0.71.0-34) ?
At least I can't see any stuttering on that Youtube HLS video.

[ryrynz]

Well you can tell us that, but those fixes do look to be directly related to this discussion, so..

[nevcairiel]

It would make it easier to just keep discussion of that HLS issue in the GitHub ticket:
https://github.com/Nevcairiel/LAVFilters/issues/199

As far as I can tell, the latest nightly (0.71.0-34) should greatly improve the situation.

[pikaczu]

Is LAV Filters fully compatible with x265 10bit? because I'm filming a film, scrolling with arrows on the keyboard.

[Leader]

nevcairiel

As far as I can tell, the latest nightly (0.71.0-34) should greatly improve the situation.

Yes, indeed, there are improvements, those problems, about which I wrote to you earlier, are no more. But there are still the following problems:

1. After switching to any video quality format, let's say from 720p to 480p, etc. and back, during streaming, the video starts to play jerky, correspondingly there are skipped frames, during playback.

2. After switching to any video quality format, let's say from 720 to 480, etc. and vice versa, the reproduction itself does not begin, i.e. switching occurred, and the video itself, the video frames themselves simply do not exist, they are on the spot. If you wait a while, they can appear and continue to play, but again the playback will be intermittent with skipping frames.

[nevcairiel]

LAV does not allow you to switch the variant during playback, so however you do that is probably outside of LAVs control and just ends up confusing it.

[sneaker_ger]

Is LAV Filters fully compatible with x265 10bit?
It can play the output of x265 10bit fine. If you want to seek within the file you should mux it properly so it has an index (e.g. using mkvmerge).

[pikaczu]

It can play the output of x265 10bit fine. If you want to seek within the file you should mux it properly so it has an index (e.g. using mkvmerge).

I have such movies. where to improve?

[Klaus1189]

Just remux the file(s) with MKVToolNix, nothing more. After that, you can seek properly. Issue done.

[mzso]

Hello!

I just noticed (In Potplayer and MPC-HC) that the embededded WebVTT subtitles show up empty, I get nothing. Doesn't LAV Splitter support this format? The subtitles show up in MPV, and potplayer's internal matroska splitter.

Update:
I also tried the latest nightly. Didn't change things.

[lvqcl]

Doesn't LAV Splitter support this format?

https://github.com/Nevcairiel/LAVFilters/issues/80

[mzso]

https://github.com/Nevcairiel/LAVFilters/issues/80

Thanks for the link.
Doesn't look encouraging. Though I'd say seeing a subtitle is still better than having nothing at all. (Not sure where "directshow formats" com into play. The containers/players certainly support this format)

[nevcairiel]

The containers/players certainly support this format

No DirectShow player that I know of supports it properly.

[mzso]

No DirectShow player that I know of supports it properly.
I don't know about other players, but potplayer can certainly show vtt subtitles, even if the subs are embedded if I use its internal splitter. And I'm quite sure it used to work with internal subtitles also. I reported some bug with it more than a year ago. (And I've been using LAV for many years, so I would have noticed if it wasn't working then. I don't know hat happened in the meanwhile.)


For what it's worth I'm fine with it being treated as a simple text subtitles, it only has positioning as a notable extra anyway (which is rarely used on youtube ) which I explicitly don't want, because I usually have the text outside the image frame.

To me it's much more of a problem that I don't get any subtitles. ( and the subtitle appears to be empty/broken)

(I even have ASS/SSA formatting disabled, even though it's supported by the player.)

[LigH]

According to the installer, LAV Filters support AviSynth scripts. Does that also include pseudo AVI files created with makeAVIS, using the FourCC 'AVIS'? The video configuration does not expose a format option related to AviSynth. Just checking if it can completely substitute ffdshow for applications which don't support AviSynth scripts directly (e.g. by analyzing the file for supported container formats first), but possibly DirectShow decoders for AVI.

[lord_muad_dib]

hello, i'm new about lav filters, so, sorry if it's a rather stupid question, i searched for answers in this forum and found nothing about it.
i use the filter under wine, and all works great, really. but when i tried to edit settings with the lav panels (start menu links) it doesn't seem to save anything and the apply button is also grayed out. is it a normal behavior? do i need a 3rd party app to edit options?
i can edit stuff using regedit in H/C/U/software/lav but it is not practical of course and i didn't find a full list of keys i can add/edit

thanks for any help

[nevcairiel]

I'm sorry, but running under wine is neither tested nor supported. LAV is designed for Windows, you can probably find much easier options on Linux then running DirectShow codecs on Wine.

[pikaczu]

Is LAV Filters fully compatible with x265 10bit? because I'm filming a film, scrolling with arrows on the keyboard.

[lord_muad_dib]

I'm sorry, but running under wine is neither tested nor supported. LAV is designed for Windows, you can probably find much easier options on Linux then running DirectShow codecs on Wine.

oh, it's ok, fact is, wine supports the host media outputs and codecs to play videos on windows games but there's not a viable way to add codecs on the list in mac os (at least in the newer ones, perian worked in ancient osx versions).. so i'm stuck using filters inside wine itself. oh well, it's not a big deal. at least i can report that lav works great under wine(no noticeable lag in most video/audio formats, it's robust) as is so, i'll just keep editing the registry for now :) is there a list of registry keys of lav?
thanks for all your work, if you'll ever want to venture in wine support you'll have a tester :D

[aufkrawall]

To be on the safe side you could set up LAV Filters in a Windows VM and simply export its registry keys.

[steakhutzeee]

Hi :)

I'm trying to configure Lav Splitter. For example i've this file with two audio tracks, one japanese and one english.
Starting the player, the english track is selected, even if i specify that jpn language goes first. Why this? What i'm missing?

https://s17.postimg.cc/jly13bylb/lav.jpg

Thanks!

[nevcairiel]

Some players override LAVs stream choices. In that case there is nothing it can do.

[steakhutzeee]

Some players override LAVs stream choices. In that case there is nothing it can do.

I'm using MPC-BE. Is this the case?
Posted a screen in my previous post.

[Aleksoid1978]

I'm using MPC-BE. Is this the case?
Posted a screen in my previous post.

MPC-BE - go Options -> Playback and uncheck "Default track preference".

[steakhutzeee]

MPC-BE - go Options -> Playback and uncheck "Default track preference".

Thanks, but it's unchecked yet :(

https://s17.postimg.cc/eto7rx6i7/mpc.jpg

[LigH]

Furthermore, there are containers where you can flag streams to be the default among several (or even force their use, e.g. for subtitles); MKV supports such flags, here you would have to edit their header.

[Pat357]

According to the installer, LAV Filters support AviSynth scripts. Does that also include pseudo AVI files created with makeAVIS, using the FourCC 'AVIS'? The video configuration does not expose a format option related to AviSynth. Just checking if it can completely substitute ffdshow for applications which don't support AviSynth scripts directly (e.g. by analyzing the file for supported container formats first), but possibly DirectShow decoders for AVI.

I guess a makeAVIS AVI can only be opened if ffdshow is installed.
What you can do is create a virtual AVI using the PISMO plugin (both AVS and Vapoursynth).
This virtual file can be opened by anything using a AVI VFW from the system.
It will not use LAV.

[steakhutzeee]

Furthermore, there are containers where you can flag streams to be the default among several (or even force their use, e.g. for subtitles); MKV supports such flags, here you would have to edit their header.

I've no experience on this. How can i do?
Thanks.

So i can't use lav splitter "in automatic" with mpc be?

[rizukitomi]

hey, mind testing this video sample... because it's seek weirdly in my player...

i use LAVf 0-71-34... for player, i use MPC-BE... at first i thought it was player bug, but when i try it with potplayer, it's still seek weirdly...

when i uninstall LAVf splitter from 0-71-34 and reinstall LAVf splitter from 0-71, it's seek smoothly... and when i change the container to mkv, it's seek smoothly too... but when in mp4 container, it's seek weirdly... may i ask why ? is this bug ?

note :
# video sample i provide is : 720p h264 in mp4 container, i get it from some fansubs forum...

this is the sample : https://drive.google.com/open?id=18edu0WCzOLOelgR1M4NEe9SR84SGz6Ft

[sneaker_ger]

What does "weirdly" mean? Are you using LAV Video as well? If so, what decoder (software, D3D11, DXVA etc.)? Can you pinpoint the exact nightly version it was introduced? (I don't see anything weird with 0.71.0.34 and MPC-HC nor MPC-BE.)

[steakhutzeee]

Yep, as I can see, the preferred languages doesn't work with mpc be.

Can someone confirm this? So I'm sure I'm not doing something wrong.

[sneaker_ger]

No, I cannot confirm. Works fine here with LAV 0.71.0.34 and MPC-BE x64 v1.5.2 build 3586. I have "default track preference" ("Options"->"Playback") NOT ticked.

[steakhutzeee]

No, I cannot confirm. Works fine here with LAV 0.71.0.34 and MPC-BE x64 v1.5.2 build 3586. I have "default track preference" ("Options"->"Playback") NOT ticked.That's strange, I never had that option ticked and it doesn't works.

[sneaker_ger]

Filter list? ("Play"->"Filters" during playback.)

[steakhutzeee]

Lav splitter is loaded, in fact I manually select the audio and subs I want.Filter list? ("Play"->"Filters" during playback.)

[sneaker_ger]

Are you using the same MPC-BE build as me?

[steakhutzeee]

I'm using 1.5.2 build 3445 beta.
And lav filters 0.71 stable.

I checked yesterday for updates but I think it search on sourceforge.net where the latest version is the one I use :/

Are you using the same MPC-BE build as me?

[sneaker_ger]

I got mine from https://www.videohelp.com/software/MPC-BE . Not saying that is the cause, just checking to make sure you aren't using some 3 year old build but yours is pretty recent ..

[steakhutzeee]

I got mine from https://www.videohelp.com/software/MPC-BE . Not saying that is the cause, just checking to make sure you aren't using some 3 year old build but yours is pretty recent ..

In lav splitter i selected No Subtitles, but when i open a file, subtitles are loaded. So it's of course not working, but i can select audio e subtitles i want from the icon in the sys bar.

This is very strange, what could be the cause? :confused:

I don't understand, i disabled la splitter source and lav splitter but when i load a file lav splitter is loaded...

EDIT: ^This because i think lav starts automatically with mpc be. Now in fact i unistalled lav and reinstalled the latest nightly build, and without adding lav to external filters in mpc be, they starts automagically. Is this behavior normal?

So with the clean installation of lav i tried to select No Subtitles in Lav Filters but still subtitles are loaded. So i don't know...

[mclingo]

got an odd problem with LAV audio.

I cant bit stream for some DTS movies if I use LAV as external filters, doesnt seem to be any reason for this, ive tried several versions all the the same issue, some DTS movies play fine which is odd.

To give an example. If I install MPC-HC with stock settings and set it to bit stream using internal filters 0.71.25 everything plays ok

if I then use LAV filters externally, regardless of version I lose sound on some movies, just cant work whats going on.

Same happens in MPC-BE and KODI DS so its defo something with my PC or LAV filters.

I've dropped back a few AMD RX driver versions and this made no difference either, no idea whats going on, anyone any ideas?, here is the media info of one of the movies that wont play.


Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 2 h 14 min
Bit rate mode : Constant
Bit rate : 1 509 kb/s
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.42 GiB (13%)
Language : English
Default : Yes
Forced : No


I've also tried currently nightly.


EDIT - I should also say that I can play these movies fine with VLC /bitstream so its just LAV filters.


here is demo, I cant play this either -


https://we.tl/rbkIeKMHj6

[steakhutzeee]

got an odd problem with LAV audio.

I cant bit stream for some DTS movies if I use LAV as external filters, doesnt seem to be any reason for this, ive tried several versions all the the same issue, some DTS movies play fine which is odd.

To give an example. If I install MPC-HC with stock settings and set it to bit stream using internal filters 0.71.25 everything plays ok

if I then use LAV filters externally, regardless of version I lose sound on some movies, just cant work whats going on.

Same happens in MPC-BE and KODI DS so its defo something with my PC or LAV filters.

I've dropped back a few AMD RX driver versions and this made no difference either, no idea whats going on, anyone any ideas?, here is the media info of one of the movies that wont play.


Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 2 h 14 min
Bit rate mode : Constant
Bit rate : 1 509 kb/s
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.42 GiB (13%)
Language : English
Default : Yes
Forced : No


I've also tried currently nightly.


EDIT - I should also say that I can play these movies fine with VLC /bitstream so its just LAV filters.What's difference of using external filter lav or "internal?".

I have installed lav and noted that without adding it to external filters, it runs on its own when I play something. How possible?

[mclingo]

i suspect this wasnt LAV at all as I found several other issues also came back, I was getting HDMI loss coming in and out of 3D mode and blown out reds again with MADVR on 23p material. All issues now fixed with system restore.

suspect my GFX driver install got corrupted or something, I had a few pc crashes in the week caused by a faulty power adapter, I'm betting that caused it, I hadnt watched anything for a few days so I only spotted it today.

[mclingo]

@nevcairiel - i've found an issue i'd like your advice on. As stated I lost DTS bitstream playback on half my DTS collection, on further inspection it was all non DTS HD stuff which made me think of LAV filters again. I can reproduce this problem by ticking use DTS HD framing for all DTS types, i'm sure I usually have this ticked.

Should this be ticked, is this a bug, i've tried several LAV versions and all have the same issue, I also tried a few AMD drivers, of course this could be something wrong with my receiver or PC maybe.

What do you think?