LAV Filters - DirectShow Media Splitter and Decoders

[Aleksoid1978]

Feature Request: Add TAK chapter support to LAV Splitter. Basically, I encode my albums as a single file with an embedded cuesheet that splits the tracks accordingly.

Can you upload a sample with embedded cuesheet.

[Libeluratio]

Hi everyboy, (sorry for my english)

I'm looking for a way to decode dts-hd with lav audio, but not the "simple" dts, I need this one to be send to ffdshow audio and decoded with it. Is that possible ? if yes, how to do this, and if no, please why ?

I need this because, because of my hardware setup (I think), I need different audio delays between dts, ac3, true-hd, and dts-hd tracks (all delays are differents depending on the audio codec). So I'd like to use ffdshow audio presets settings to manage my dts, ac3, and true-hd delays but, since it can't decode dts-hd unlike lav audio, I need this one to handle dts-hd only and no dts.

I'm not sure I'm very clear ?

Thanks !!

[nevcairiel]

Feature Request: Add TAK chapter support to LAV Splitter. Basically, I encode my albums as a single file with an embedded cuesheet that splits the tracks accordingly.

This is already planned, however if you have a sample file, then i can make sure it works for TAK as well (i only have APE, FLAC and WV files with this feature, iirc)


I'm looking for a way to decode dts-hd with lav audio, but not the "simple" dts, I need this one to be send to ffdshow audio and decoded with it. Is that possible ?

This is not possible.
LAV can either decode all DTS, or none. There are no plans for anything else.

The primary reason for this is that you cannot really tell if something is DTS-HD until you've actually started decoding it, and that is too late to switch decoder.

[Libeluratio]

Thank for your answer but in that case, why is it possible to chose to bitstream dts-hd and no dts ? You said that the difference between dts-hd and dts is not detectable until lav start decoding, right ?

[nevcairiel]

You can't choose that. You have to choose dts to be able to choose dts-hd. If dts-hd is not choosen, it'll bitstream the dts core and discard the HD parts, but it'll still bitstream. If dts is not choosen, it'll not bitstream dts at all.

[Mercury_22]

Nev if you can get your hands on Fast&Furious 6 BD there are some glitches with the extended version (both versions on the same disc) = picture freeze sound getting out of sync at around min 39, 44, and others Thing is that TMT and even XBMC don't have those glitches at the same points /minutes

Sorry can't post samples due to the size of the samples

[nevcairiel]

That BD won't even be released until end of September here, and i'll be on vacation then, so don't expect any fixes for the next two month. You could cut a small sample instead. :p

[Mercury_22]

That BD won't even be released until end of September here, and i'll be on vacation then, so don't expect any fixes for the next two month. You could cut a small sample instead. :p
Kinda difficult because it seems that the glitches are happening at playlist or m2ts changing
I'll see what I can do

EDIT Yes it happens at m2ts changing only with the extended version and with small samples (cuts) cant make it work at all, also I can play each m2ts file without any problem

EDIT 2 MPC-BE's internal splitter it's working without any problem and with any decoder (internal or LAV) IF I select the second audio track ( which seems to be the correct track for the extended version) but with lav splitter no such luck

EDIT 3 I spoke too soon MPC-BE's internal splitter it's failing at some times too (just before credits) but it's still getting less errors

[Mangix]

This is already planned, however if you have a sample file, then i can make sure it works for TAK as well (i only have APE, FLAC and WV files with this feature, iirc)


https://mega.co.nz/#!DdxSTAZS!cQW53SKyyw5ff8d0kEel9xtFlSkfhXVWTOtBeaw_UMA

There are three songs in the file. AFAIK, TAK is also using APEv2 tags so it should be similar to the others.

An interesting question would be how multiple disks would be handled. Maybe chapters with subchapters being the tracks.

[Mercury_22]

Bad AR in avi

Sample (http://www.multiupload.nl/QM1323P7GD)

P.S. MPC-BE's avi splitter seems to have the correct AR

[nevcairiel]

Bad AR in avi

Sample (http://www.multiupload.nl/QM1323P7GD)

P.S. MPC-BE's avi splitter seems to have the correct AR

The container seems to say 5:4 and the video stream 16:9.
If LAV Video is set to its default settings, it'll take the video stream AR, and the video looks alright. If i disable stream AR, it looks bad.

So what behavior did you expect?

[Mercury_22]

The container seems to say 5:4 and the video stream 16:9.
If LAV Video is set to its default settings, it'll take the video stream AR, and the video looks alright. If i disable stream AR, it looks bad.

So what behavior did you expect?

I was expected the default behavior 16:9 I have LAV video on default = indeterminate

EDIT Does it look 16:9 for you with default (= indeterminate) settings in LAV video ?

EDIT 2 If I use "Checked" in lav video then yes it has a 16:9 AR but not with default = indeterminate and AFAIK "AVI does not provide a standardized way to encode aspect ratio information"

[nevcairiel]

Sadly there is never a "right" answer to such problems, there will be files which work with one setting, and files which work with another.
I could disable it for AVI again if i'm convinced that AVIs can never really be trusted, or at least not in most cases, but its all a bit random.

[Mercury_22]

Sadly there is never a "right" answer to such problems, there will be files which work with one setting, and files which work with another.
I could disable it for AVI again if i'm convinced that AVIs can never really be trusted, or at least not in most cases, but its all a bit random.

Well since even WMP it's using the 16:9 in this case I think "the standard " should be the "video stream" AR for avi

[Mixer73]

That is why i can only use my Nvidia GPU (i have asus ux32vd) and lav filters with cuvid. That is why my only solution to have everything working perfectly is to have the resizing fix in lav video decoder.

If I may make comment on this, for the kind of work you are doing, you are using completely the wrong kind of machine. Ultrabooks are designed for light weight and severely compromise processing power and grunt for cooling and battery life.

If you got a different type of laptop you might well be able to get away with software processing.

[itsonlyjustincase]

If I may make comment on this, for the kind of work you are doing, you are using completely the wrong kind of machine. Ultrabooks are designed for light weight and severely compromise processing power and grunt for cooling and battery life.

If you got a different type of laptop you might well be able to get away with software processing.

I don't get your comment at all ! Whatever the PC i would have it would be the same as the problem is coming from my software Serato Video which doesn't support Intel GPUs and has a bad renderer that creates weird displaying of certains videos when using Lav. The soft doesn't permit to choose the codecs neither as i explained it before.

So perhaps you could try to explain me what you really meant and the goal of what you were saying as the problem isn't my pc at all. Plus i'll add that the high-end ultrabooks (like mine when i bought it) are more than strong enough to execute such softwares.

You should go one the website Serato and see the minimal and recommanded specs for Serato scrath live and Serato Video. The ux32vd i have is so much stronger that was is needed. Perhaps you may think it's a software like adobe premiere of any strong video editing soft. It's not that at all........Some dj play the audio version with eeepc......

[nevcairiel]

Kinda difficult because it seems that the glitches are happening at playlist or m2ts changing
I'll see what I can do

EDIT Yes it happens at m2ts changing only with the extended version and with small samples (cuts) cant make it work at all, also I can play each m2ts file without any problem

EDIT 2 MPC-BE's internal splitter it's working without any problem and with any decoder (internal or LAV) IF I select the second audio track ( which seems to be the correct track for the extended version) but with lav splitter no such luck

EDIT 3 I spoke too soon MPC-BE's internal splitter it's failing at some times too (just before credits) but it's still getting less errors

I enabled the generic timestamp fixing code for Blu-rays, it should help in case the Blu-ray is not 100% perfectly authored and there is small gap in the stream. It might end up in a tiny hic-up during playback still, but at least it will not freeze anymore.

Please test.

[Mercury_22]

I enabled the generic timestamp fixing code for Blu-rays, it should help in case the Blu-ray is not 100% perfectly authored and there is small gap in the stream. It might end up in a tiny hic-up during playback still, but at least it will not freeze anymore.

Please test.

Yes it's fixed :thanks: and as you've said now there are just some very very very..." tiny hic-ups" :) which if don't look for you'll miss them

One more thing is it possible to make LAV select the coorect (= the second) audio track for the extended version as xbmc does (without using the bd menu option ) ?

once again thanks for the fix

[nevcairiel]

One more thing is it possible to make LAV select the coorect (= the second) audio track for the extended version as xbmc does (without using the bd menu option ) ?

Whats wrong with the first track?
LAV only does language and quality based decisions, if there are no such factors, it'll be hard.

[Mercury_22]

Whats wrong with the first track?
LAV only does language and quality based decisions, if there are no such factors, it'll be hard.

First track it's for the theatrical version (which is a little shorter so lav it's picking the longest video = extended with the first audio = theatrical since audio language and audio quality are the same)

But XBMC it's selecting the second audio without the use of the menu But I can't say how:confused:

[nevcairiel]

That must be one terribly authored Blu-ray. Usually you use the same track for both editions, and just add the additional parts in the middle, like with the video.
Maybe i can make the Blu-ray demuxer read the stream information from the BD playlist, and use that for better stream selection, but its all a bit meh.

[mastan]

LAV Splitter does not produce video output pin in these two mkv files: http://labs.divx.com/node/127909
MediaInfo:

Format : Matroska
Format version : Version 4 / Version 2
File size : 101 MiB
Duration : 12mn 14s
Overall bit rate : 1 153 Kbps
Encoded date : UTC 2013-08-01 21:42:13
Writing application : mkvmerge v6.2.0 ('Promised Land Rovi v1.0.2') built on Jul 9 2013 16:13:44
Writing library : libebml v1.3.0 + libmatroska v1.4.0

Video
ID : 1
Format : V_MPEGH/ISO/HEVC
Codec ID : V_MPEGH/ISO/HEVC
Duration : 12mn 14s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 24.000 fps
Default : Yes
Forced : No

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 12mn 14s
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Compression mode : Lossy
Default : Yes
Forced : No

[nevcairiel]

There is no standard for HEVC in MKV yet, and until there is, LAV will not support it.
And once there is, the DivX MKV files will not be compatible with the standard anyway.

Such a company should not invent their own format, instead coordinate with the Matroska developers. Their old files will in the future most likely not play properly in compliant players.

[SamKook]

I don't get your comment at all ! Whatever the PC i would have it would be the same as the problem is coming from my software Serato Video which doesn't support Intel GPUs and has a bad renderer that creates weird displaying of certains videos when using Lav. The soft doesn't permit to choose the codecs neither as i explained it before.

So perhaps you could try to explain me what you really meant and the goal of what you were saying as the problem isn't my pc at all. Plus i'll add that the high-end ultrabooks (like mine when i bought it) are more than strong enough to execute such softwares.

You should go one the website Serato and see the minimal and recommanded specs for Serato scrath live and Serato Video. The ux32vd i have is so much stronger that was is needed. Perhaps you may think it's a software like adobe premiere of any strong video editing soft. It's not that at all........Some dj play the audio version with eeepc......

The other point is that as this software processes the video in real-time cause of the fact it is a live video mix one. So it allow to load effect in real-time, accelerate, slow down etc...the result is that it eats lots of ressources. Using it with ffdshow results in 90% CPU and bad FPS.

As you said yourself, your laptop isn't strong enough for ffdshow which would solve your problem.
You may be over the minimal requirement, but as its name implies, that's only the bare minimum to use the software. More complex operations(like resizing) require more power which your laptop can't provide as you said yourself.

[itsonlyjustincase]

As you said yourself, your laptop isn't strong enough for ffdshow which would solve your problem.
You may be over the minimal requirement, but as its name implies, that's only the bare minimum to use the software. More complex operations(like resizing) require more power which your laptop can't provide as you said yourself.

I understand as u guys don't really want to help.........i can open 10 1080p videos at the sametime using lav filters and hardware acceleration.......the problem comes really from the software and its lack of optimisation. That's why the resizing would have been a workaround. I donch't think ffdshow without the use of quicksync would permit this soft to work better even on a new i7 haswell. When something isn't coded and optimized well it's a problem. My question was if someone could add the ffdshow resizing function to Lav and if yes how much would it cost. Period.

[itsonlyjustincase]

You don't change a computer for 1 software when everything is working fine. That's why i also understand Nev which doesn't want to do it as its lav filters work fine with almost anything else........

[sneaker_ger]

Not sure if I understand your problem correctly, but you do know that it is possible to combine LAV Video and ffdshow? In the ffdshow codecs options you can find "uncompressed video" at the very bottom of the list.

[SamKook]

Nev said many times that he won't include resizing and the likes in lav so that option out.
We're only trying to give you alternatives. The CPU in the ux32vd is underclocked to keep it from overheating in such a tight space which really harms single threaded performance and is the problem that you're experiencing with ffdshow. You can play multiple video at the same time without problem since you have many core and threads, but each video can't use more than one with most decoders.
A laptop with a higher clock per core would really help you out here and it's what Mixer73 was trying to tell you. A normal i7 processor has a clock speed almost twice as fast as yours which would very likely make ffdshow run without problem for such a small video even with terrible optimization.

If my livelihood depended on my laptop, I would certainly consider upgrading it for 1 software which doesn't work fast enough, but that's up to you, we're only telling you about different possibilities.

[clsid]

Changing the resizing algorithm in ffdshow could improve performance. Resizing to screen size is also bad for performance. Instead you should experiment with different settings. Simply resizing to the aspect ratio of your screen should have the same end result, but with much better performance.

[itsonlyjustincase]

Not sure if I understand your problem correctly, but you do know that it is possible to combine LAV Video and ffdshow? In the ffdshow codecs options you can find "uncompressed video" at the very bottom of the list.

My soft doesn't allow the use of multiple codecs like mpc-hc can for example

[itsonlyjustincase]

Changing the resizing algorithm in ffdshow could improve performance. Resizing to screen size is also bad for performance. Instead you should experiment with different settings. Simply resizing to the aspect ratio of your screen should have the same end result, but with much better performance.

That s what I would need in LAV Video decoder so that I can benefit from cuvid

[itsonlyjustincase]

Nev said many times that he won't include resizing and the likes in lav so that option out.
We're only trying to give you alternatives. The CPU in the ux32vd is underclocked to keep it from overheating in such a tight space which really harms single threaded performance and is the problem that you're experiencing with ffdshow. You can play multiple video at the same time without problem since you have many core and threads, but each video can't use more than one with most decoders.
A laptop with a higher clock per core would really help you out here and it's what Mixer73 was trying to tell you. A normal i7 processor has a clock speed almost twice as fast as yours which would very likely make ffdshow run without problem for such a small video even with terrible optimization.

If my livelihood depended on my laptop, I would certainly consider upgrading it for 1 software which doesn't work fast enough, but that's up to you, we're only telling you about different possibilities.

Nowadays for performance purposes it s better to use hardware acceleration. In your opinion why Intel has implemented quick sync?! It s the future and also the present of video programs. My problem is that as my software doesn't support Intel I have to use lav video decoder. The soft doesn't support dxva neither

[Mercury_22]

After latest updates QuickSync x64 won't build (x86 it's building OK) (...unresolved external symbol...)

[nevcairiel]

After latest updates QuickSync x64 won't build (x86 it's building OK) (...unresolved external symbol...)

Should be fixed, too much copy-pasta.

[Reino]

Unlike DC-BSM, LAV refuses to play mp4-files found in this archive (http://www.hwigroup.com/dab-samples.zip). In GraphStudioNext LAV Splitter's stream-selection says "soun". As this most likely needs to be "Soundhandler", there's probably something 'wrong' the with header.

[nevcairiel]

Unlike DC-BSM, LAV refuses to play mp4-files found in this archive (http://www.hwigroup.com/dab-samples.zip). In GraphStudioNext LAV Splitter's stream-selection says "soun". As this most likely needs to be "Soundhandler", there's probably something 'wrong' the with header.

It looks like these files use AAC which is encoded with the 960 MDCT window size, which the ffmpeg decoder does not support, and as such LAV Audio cannot play.

Judging from the name of the archive, its from digital audio broadcasts, where apparently the 960 MDCT is common, even if its otherwise rather uncommon in AAC.

Anyhow, there isn't anything i can do, i lack the required knowledge about AAC to even attempt to implement it - i would suggest to ask the FFmpeg/Libav developers if they considered working on it.

[CiNcH]

too much copy-pasta
I love pasta http://fstatic0.mtb-news.de/img/photos/7/7/8/7/_/medium/homer-sabber.jpg

Sorry for OT. I had to do that...

[Reino]

DAB+ indeed. Got link from this article (http://nl.hardware.info/reviews/4765/4/noxon-dab+-stick-review-digitale-radio-in-nederland-test-dab+-in-de-praktijk). For me it's no problem, since I don't use it (yet), but I noticed LAV couldn't play it, so I thought I'd report about it.

Lol @ CiNcH.

[AngelGraves13]

NVIDIA CUVID causes random pixelation in VC-1.

Switching to DXVA 2 (copy-back) is much better.

[nevcairiel]

NVIDIA CUVID causes random pixelation in VC-1.

Switching to DXVA 2 (copy-back) is much better.

Then don't use CUVID.
It uses NVIDIAs driver for the decoding, there is nothing that can be done about it.

[dukey]

NVIDIA CUVID causes random pixelation in VC-1.

Switching to DXVA 2 (copy-back) is much better.

I've seen this before with CUVID mode also

[wanezhiling]

And CUVID always run on 3D state, so now any reason to use CUVID, nev? :P

[DragonQ]

Yeah, you can post-process after hardware deinterlacing using CUVID.

[SamuriHL]

I've been using software decoding. No issues. Cuvid just has to many limitations.

Etched in blood by a katana...

[mindbomb]

NVIDIA CUVID causes random pixelation in VC-1.

Switching to DXVA 2 (copy-back) is much better.

what graphics card?
geforce 8/9/200 only support partial hardware acceleration for vc-1 and mpeg 2, which is only possible through cuvid.
dxva copyback and native should fall back to software decoding in these cases.

I've had the issue on a gtx 260 before, but iirc, it was fixed with newer drivers. Otherwise go with forceware 275.

[ryrynz]

Nev, some time ago I requested the option of providing stereo sound duplication for surround speakers and you agreed to look into it.
Is it possible to see this implemented sometime soon? It would save time checking if video is stereo output and if it is switching the receiver
into 7 channel stereo mode and then having to switch it back for 6 channel AAC, Dolby etc, thanks.

[nevcairiel]

Its not very high on the list. I wouldn't really expect it this year

[e-t172]

Personally I would advise against implementing this feature because it is technically wrong (stereo is meant to be reproduced in stereo, not with rear speakers), so I'm not sure what is the point of adding a feature for shooting yourself in the foot.

[JimH]

I'd like to congratulate nevcairiel on his new role and wish him continued success with the LAV Filters. The world will be a better place.

[ryrynz]

Personally I would advise against implementing this feature because it is technically wrong (stereo is meant to be reproduced in stereo, not with rear speakers), so I'm not sure what is the point of adding a feature for shooting yourself in the foot.

Technically wrong? Then why are there such modes on many receivers?
I don't think my ears are going to shoot my foot here, course everyone has their own preference.
Your foot might not be safe but nobody would be forcing you to tick the box, heck you might even like how it sounds.
There's a lot more presence using stereo x7, I much prefer it over DTS Neo and Dolby Pro logic I and II.