LAV Filters - DirectShow Media Splitter and Decoders

[ryrynz]

so here is the final piece

Ahh nice. This new build fixes the subtitle selection bug I encountered last night. I wondered what was going on, I just ended up removing the subtitle selection language guess I can put it back now :p thanks!

[sexus]

hope this will be available for us madvr users too since apparently it dont work with madvr?

[6233638]

hope this will be available for us madvr users too since apparently it dont work with madvr?DXVA2 copy-back works perfectly with madVR and with the exception of some older GPUs, works just as well as DXVA2 native does. (doesn't push the card into its high-power state like CUVID does)

[sexus]

ok so selecting what i usually do aka cuvid in lav is all i need right, while madvr is my output renderer, if not then please make it so thanks , dont wanna have to select anything else than cuvid

[Mangix]

DXVA2 copy-back works perfectly with madVR and with the exception of some older GPUs, works just as well as DXVA2 native does. (doesn't push the card into its high-power state like CUVID does)

On AMD cards, performance is horrible with copy-back while fine with native, at least in my testing with various GPUs

[kitame]

stupid question about streaming media.

if i understand correctly, the client still decodes the streamed media. if it does then how do i set it so that the server decodes the media and sends it as a decoded media(or transcoded to something simpler), would LAV support it?

thinking of making my main PC send some big-ass videos to my phone and connecting it to my TV via HDMI, and voala! i just made a makeshift wireless TV >,> dang. sorry for OT.

edit: i think plex works like this... looking it up.

[FreeFall]

nevcairiel,

With the latest experimental build DVD subtitles using hardware decoding are drawn white and not in their original colours.

Tested with CUVID, DXVA2 Copy-Back and Native using a GeForce GTX 580, no problems with software decoding or using the previous build 0.53.2.

The same sample I previously uploaded, subtitles should be yellow.
http://www.mediafire.com/?a2b5hq1244f2ue8

Thanks,

FreeFall

[Pomegranate]

Hi!

I have two issues to report.

1) I can't play 24-bit / 192 KHz flac files in MPC-HC with LAV Audio Decoder + LAV Splitter. The file plays in foobar, but I don't like foobar's interface.

2) MLP files play well, but the seek bar is greyed out and MPC-HC does not display the duration.

[hoborg]

Hi!

I have two issues to report.

1) I can't play 24-bit / 192 KHz flac files in MPC-HC with LAV Audio Decoder + LAV Splitter. The file plays in foobar, but I don't like foobar's interface.

Is not that a DTS track in FLAC ?

[Pomegranate]

Is not that a DTS track in FLAC ?

No, it's a music recording. Mediainfo says it's a real flac.

Audio
Format : FLAC
Format/Info : Free Lossless Audio Codec
Duration : 3mn 36s
Bit rate mode : Variable
Bit rate : 5 153 Kbps
Channel(s) : 2 channels
Sampling rate : 192 KHz
Bit depth : 24 bits
Stream size : 133 MiB (100%)
Writing library : libFLAC 1.2.1 (UTC 2007-09-17)




If you feel like trying it out, you can find similar files at :

http://www.2l.no/hires/index.html


Edit:
Actually, I'm dumb..
It was an audio renderer issue regarding flac playback.

This is what I have :

http://i47.tinypic.com/o0fbk.jpg

Renderers #2 and #5 work, but no luck with "Directsound" or "System Default". (Renderers #3 & #7 are irrelevant.)

That's a problem to me, as DTS-HD MA cracks and pops and makes all sort of weird noises when using "WaveOut".

[filler56789]

2) MLP files play well, but the seek bar is greyed out and MPC-HC does not display the duration.

That's normal, .MLPs are "elementary streams" and don't support seeking when outside of a proper container — i.e., Matroska (.MKA) or MPEG program stream (.AOB).

[Pomegranate]

That's normal, .MLPs are "elementary streams" and don't support seeking when outside of a proper container — i.e., Matroska (.MKA) or MPEG program stream (.AOB).

Thanks for the tip! I just tried it and it works like a charm with Matroska.

After further testing (with madFlac, LAV Audio Decoder and mpc-hc's internal decoder), it would seem 192khz audio files can only be rendered through WaveOut when using MPC-HC, on my system at least. Can anyone tell me if it should be working with Directsound?

[nevcairiel]

Looks like you're on Windows XP, yes? On XP, the DirectSound mixer is tightly coupled to your Audio Cards driver, so if you have any issues with DirectSound output, its most likely your audio drivers fault.
On Vista and 7, the DirectSound mixer is whole lot better, and properly processes all audio you throw at it.

[nevcairiel]

With the latest experimental build DVD subtitles using hardware decoding are drawn white and not in their original colours.

Without being able to test right now, i think i see the issue in the code. I'll confirm on the weekend and fix, thanks.

[Pomegranate]

Looks like you're on Windows XP, yes? On XP, the DirectSound mixer is tightly coupled to your Audio Cards driver, so if you have any issues with DirectSound output, its most likely your audio drivers fault.
On Vista and 7, the DirectSound mixer is whole lot better, and properly processes all audio you throw at it.

Yes, I am using XP. :o

I thought it was the driver's fault too, but I just tried SMPlayer and the file played straight out of the box. Works fine with both directsound and what is labelled as "win32" (might be "WaveOut").

I also had Nero Showtime 3, which came bundled with Nero 7, and it plays the file fine with directsound, using madFlac source.

It's probably an MPC-HC bug, right?

[nevcairiel]

Might be MPC-HCs audio switcher, you can disable it and see if it changes anything.

[mindbomb]

enabling gx mode in the xonar drivers can screw up directsound stuff.

the other players are probably downsampling it to something more common than 24 bit/192khz I'm guessing.

[Pomegranate]

@nevcairiel : I don't use audio switcher, it's always off.

@mindbomb : GX was off the whole time. I've never used it, to be honest.

I'll do another XP install on an old drive and disable the Xonar, enable the onboard sound, and see what happens.

Also, is it possible to find out if the other players are downsampling?

[filler56789]

As a temporary / ¿last? resort, give a try to ReClock. :)

[sexus]

Without being able to test right now, i think i see the issue in the code. I'll confirm on the weekend and fix, thanks.

would be nice , for us cuvid users ;)

[Pomegranate]

As a temporary / ¿last? resort, give a try to ReClock. :)

I've tried it, and it still only works with WaveOut, and I get audio drops every now and then :( . I guess I'll just use foobar2000 for now.

Thank you for the tip though, kernel streaming looks interesting.

[bjd]

I can't play 24-bit / 192 KHz flac files

Directsound input on Windows XP is limited to 96,000khz max. If you are bothering to listen to high resolution audio, far better to use an XP audio renderer that supports kernel streaming. Always found reclock to be best option.

[egur]

Using ZoomPlayer, DVD playback, I can't have LAV (0.53.2) as video decoder and MadVR (0.85.1) as renderer.
ffdshow+madvr: OK
ffdshow+EVR: OK
lav+EVR: OK
lav+madvr: filters do not connect.
All output formats are enabled in LAV except RGB24.

[aufkrawall]

nev, now that madVR works with DXVA2 native, is there a chance that you'll give 4k decoding via it a higher priority? :)

[nevcairiel]

nev, now that madVR works with DXVA2 native, is there a chance that you'll give 4k decoding via it a higher priority? :)

4k content is as nonexistant as ever, so why would that change anything?

[aufkrawall]

4k content is as nonexistant as ever, so why would that change anything?
It won't, but it'd be nice to have (honest answer :o ).

[aufkrawall]

Menu of 12 Monkeys DVD doesn't work with DXVA2 native.
I've tried EVR & madVR, screen remains black except of some weird leftovers of the menu's buttons.

What files do you need if you want to fix it? :)

[nevcairiel]

Doesn't anyone read my release notes? :P


If you still have a problematic menu, you can extract only the menu from a DVD by simply zip'ing up all the IFO/BUP files, the VIDEO_TS.VOB, and all VTS_xx_0.VOBs (VTS files ending with 0 are for menus, 1 and above are content).

[aufkrawall]

Doesn't anyone read my release notes? :P
Ah, I knew I read it somewhere. :D

wtf
Copy protection is driving me crazy. 1 sec...
Rest via PM. ;)

[egur]

Here's a problematic menu:
http://www.mediafire.com/?5ww02wdqf3c2u2q
Seems to work OK with libavcodec but with QuickSync there are issue, the correct menu image is not always displayed.

[owlsroost]

Hi Nev,

Has anything changed in the handling of video stream discontinuities/errors using DXVA2 Native in the versions after 0.51.3 ?

I use LAV Video decoder in for playing live/recorded TV, and the handling of stream corruptions has always been fine with 0.51.3 and earlier, but with the later versions the video will often freeze after a corruption (and I know that it's stopped accepting input samples from the splitter when this happens).

It seems to be fine using 'None' or 'DXVA2 copy back', it's just 'DXVA2 Native' that has the problem (tested with nVidia and Intel GPU - both behave the same, using both LAV splitter and MediaPortal's own TS splitter on the same source file).

EDIT: It seems to be only H.264 that shows the problem - MPEG2 is definitely OK on the Intel GPU system at least.

Thanks,

Tony

[nevcairiel]

Nothing really changed on how decoding is handled in a general sense that would affect this.

Its possible that a bad corruption might leak a reference from here or there which may result in running out of DXVA surfaces. What codec is this, MPEG2?

[owlsroost]

As far as I can tell, it's H.264 only that's affected, and only in DXVA2 Native mode.

Tony

[DragonQ]

Hi Nev,

Has anything changed in the handling of video stream discontinuities/errors using DXVA2 Native in the versions after 0.51.3 ?

I use LAV Video decoder in for playing live/recorded TV, and the handling of stream corruptions has always been fine with 0.51.3 and earlier, but with the later versions the video will often freeze after a corruption (and I know that it's stopped accepting input samples from the splitter when this happens).
Hmmmmmmmmm I wonder if this is why sometimes I get a black screen the first time I view an encrypted channel in MediaPortal. It only started happening recently and it would be taking a while to actually start receiving any video. Doubt it but you never know.

[nevcairiel]

DXVA2 Native and CB are very similar in how they work. In fact they share like 99.9% of their code. There are only two differences, how the surfaces are managed, and what happens with them after decoding is finished. In my opinion, only the first part could even present any problems. In DXVA2-Native, if the decoder runs out of surfaces, it will freeze and wait until one is released somewhere, which usually will not happen unless the code explicitly tells the renderer or the decoder to release them. In DXVA2-CB, it would just re-use the oldest surface, even if its still in use somewhere, but never deadlock because of missing surfaces.

The problem is that i can't really imagine this happening with H.264. I specify 20 surfaces for H.264, which should be plenty. 16 for reference frames, one for the decoded frame, and 3 for delivering to the renderer (or more, depending on how many the renderer itself requests). Considering broadcasts don't even use 16 reference frames but only 4 or so, there should be plenty of surfaces available, so even if two or three are temporarily occupied because of corruption, there is still plenty to work with.

If you can re-produce the problem quite easily, i can give you a build with debug logging, maybe it can shed some light on this?

[owlsroost]

If you can re-produce the problem quite easily, i can give you a build with debug logging, maybe it can shed some light on this?

I can reproduce it 100% with a test file I have, so I'm happy to try a debug version.

Tony

[nevcairiel]

If you say file playback, does the problem also happen with LAV Splitter, or only with the MediaPortal TS source? With LAV would simply be a lot easier to test for me, which is why i am curious :)

[owlsroost]

It happens with LAV splitter as well (I tested this last night just to check).

Tony

[nevcairiel]

It happens with LAV splitter as well (I tested this last night just to check).


Ok this should be fixed, it was indeed what i expected it to be, for some reason the bitstream is corrupted in such a way that it suddenly wants to use all reference picture buffers, which caused it to run out of buffers, but that should be fine now (it was actually fixed before, because i now take the renderers request for buffers into account)

[owlsroost]

Ok this should be fixed, it was indeed what i expected it to be, for some reason the bitstream is corrupted in such a way that it suddenly wants to use all reference picture buffers, which caused it to run out of buffers, but that should be fine now (it was actually fixed before, because i now take the renderers request for buffers into account)

Thanks :) - is there a version around that I can try ?

[nevcairiel]

Here's a problematic menu:
http://www.mediafire.com/?5ww02wdqf3c2u2q
Seems to work OK with libavcodec but with QuickSync there are issue, the correct menu image is not always displayed.

Should be fixed.
Technically it was a QSDecoder issue. What happens is that i give it a frame with a specific timestamp, and when i get the frame back, it has a timestamp of 0, which confused my timestamp logic and caused it to drop the frame, but its now handled.

[romulous]

Hi nev,

LAV v0.53.2, madVR v0.85.1 as the renderer, and Zoom Player as the player (all on Win7 64bit). The following clip will not play when LAV Video is set to DXVA2 Native:
https://dl.dropbox.com/u/105555957/JustCause2-H264.mkv (26.4MB)

Zoom just shows a black screen. If I change to DXVA2 Copy-Back, it plays - but avcodec is shown in LAV, indicating DXVA is not actually in use. Same with CUVID (NVIDIA GTX-460) - clip plays, but LAV shows avcodec in use. Just using the LAV installation defaults, except for changing the hardware acceleration type obviously (I normally use CUVID, but was just testing DXVA2 Native support in the new madVR release when I found the clip wouldn't play).

[nevcairiel]

LAV v0.53.2, madVR v0.85.1 as the renderer, and Zoom Player as the player (all on Win7 64bit). The following clip will not play when LAV Video is set to DXVA2 Native:
https://dl.dropbox.com/u/105555957/JustCause2-H264.mkv (26.4MB)

Zoom just shows a black screen. If I change to DXVA2 Copy-Back, it plays - but avcodec is shown in LAV, indicating DXVA is not actually in use. Same with CUVID (NVIDIA GTX-460) - clip plays, but LAV shows avcodec in use. Just using the LAV installation defaults, except for changing the hardware acceleration type obviously (I normally use CUVID, but was just testing DXVA2 Native support in the new madVR release when I found the clip wouldn't play).

Works just fine for me, in DXVA2 Native/CB or CUVID.
I only tested in MPC-HC, so it may as well be a ZP issue (unlikely, but anything is possible), but i do not have ZP installed right now.

[6233638]

Works just fine for me, in DXVA2 Native/CB or CUVID.
I only tested in MPC-HC, so it may as well be a ZP issue (unlikely, but anything is possible), but i do not have ZP installed right now.The clip isn't working for me in MPC-HC either. If I use DXVA2 Native, I get a black screen and can't play the video. (stays stopped)

With CUVID or DXVA2 copy-back, it uses avcodec to decode.

This is using LAVFilters-0.53.2-9-g1ea7611

[nevcairiel]

Dunno what to tell you, but its just fine.

http://images.gammatester.com/pics/3b3a1402943144f3aa24e4bdb16bcc89.png

[wanezhiling]

Works fine here too.

[6233638]

Dunno what to tell you, but its just fine.

http://images.gammatester.com/pics/3b3a1402943144f3aa24e4bdb16bcc89.pngWeird, is that with Nvidia?

Not that most of these should make a difference, I've tried changing MPC-HC builds, going back to the release version of LAV 0.53.2, disabling LAV Splitter (source) using EVR instead of madVR, and changing to directsound output instead of ReClock.
The only other thing I can think to change other than that would be the video driver, which I would prefer not to do, as that has a habit of clearing my custom profiles for games.

Always switches to avcodec with CUVID or DXVA2 copy-back, and refuses to play with DXVA2 native.

[nevcairiel]

Weird, is that with Nvidia?


Yes, a GTX 680 on 310.33
I also tried on my Intel HD 3000, and it also worked fine in DXVA2.

Its 1920x1200, maybe they blocked that in the driver for some reason, and only allow 1920x1080?
I guess i can install the 310.61 driver featured in your signature for testing, i dont have profiles to lose on this machine. :p

Might as well be a Win8 thing, i'm still on 7.

Edit:
Still works with 310.61.

You can try turning off the "High Quality Processing" checkbox for CUVID, that will then access the hardware more directly without any DXVA/Windows influence, maybe it helps. :D

[clsid]

I get a black screen as well.
Win7 with 306.97 driver.

[nevcairiel]

Might also be a Hardware thing. Did 1920x1200 ever work? Do other 1920x1200 clips work? I have a VP5 kepler card, which is even 4K capable, so it might be that. Maybe i simply need to reduce the limit from 1920x1200 to 1920x1080 (or finally implement proper probing for DXVA2-N)