LAV Filters - DirectShow Media Splitter and Decoders

[sneaker_ger]

No I frames are marked as IDR or CRA in the bitstream (except the very first frame). Bad encode.

[CruNcher]

Originally Posted by sneaker_ger

Again a sample muxed with old/broken DivX "Rovi" mkvmerge. That muxer was experimental and should never be used.

Old you mean used in their Divx Suite for Production or Beta ?, because their own released samples never had issues.

Like

fitness-trailer-8000.mkv
hollywood-makeover-8000.mkv
KAZU_(SUBTITLES)_4K23.98p_HEVC_10Mbits.mkv
SHANE_ONEIL 4K24p_HEVC_10Mbits.mkv


Writing application : DivXMKVMux 4.0.10.1893
Writing library : libDivXMediaFormat 4.0.0.0578

Writing application : DivXMKVMux 4.0.10.2513
Writing library : libDivXMediaFormat 4.0.0.0578

[sneaker_ger]

I don't know about DivXMKVMux. If in doubt: avoid it. Especially if it's older than HEVC support in official mkvmerge.

[CruNcher]

it looks like though some used it for Production and those broken streams are circulating now or some strange de/muxing operation created those non interoperable files now

Originally Posted by NikosD

Similar case with the previous file, only worst.

You can't even seek, even using latest LAV filters 0.69.08 (splitter + decoder)

HEVC 4K 8bit:
https://mega.nz/#!5lEhEKLA!MR6D8yPHF...QYM3fQqXW9gd4s

Seeking though works somewhat here just takes ages also because the 4 cores are under practical full load and even the MadVR overhead seems already to much

Runs a bit better without MadVR overhead but it's at the Edge of the Cores with some Latency issues here and there though not using latest lav decoder not sure if any improvements where done on the CPU decoding part it seems partly still underutilized.

Though threading efficiency is problematic in this lav decoder and 99% is at such a critical edge there are no words for it how critical without efficient threading .

That tractor scene kills it for some seconds pretty much at its motion peak (which most probably is also the complexity peak of the whole encode)



And that is also pretty much DivX Profile target here

Wonder if i can lower the complexity with Nvidias Encoder in Realtime without hurting it much, especially in those high motion scenes they are anyway semi perceptible overall already

PS: Either i imagine things or some frames look very familiar from somwhere.

Hmm

That Cowboy, Rollercoster and Skateboard scene trigger something.

[groen]

Originally Posted by clsid

You should disable passthrough for E-AC3. Then LAV Audio will work fine. Your receiver (or sound driver) does not support E-AC3 bitstreaming. LAV Audio decoder does not (yet) have a fallback to normal decoding when passthrough fails.

Thanks for the reply.

The reason this was not working was it requires hdmi cable rather than optical cable to passthrough.

It works fine over HDMI. Probably because of the bitrate requirements.

Sorry to bother.

[LigH]

I do remember that S/P-DIF or TOS-Link were limited to bitrates of 48 kHz stereo (1536 kbps). No chance to use it for 6-channel PCM. Some HD audio formats may surpass this as well.

[clsid]

AviSynth scripts crash with AviSynthPlus r1576. Got broken between 0.68.1-25-82c5743 and 0.68.1-33-4fde984

[nevcairiel]

LAV now requires AviSynth 2.6, and 2.5 is no longer supported, and I cannot comment on AVS+. If it doesn't match AVS 2.6 behavior/features, then its not supported.

[clsid]

The most recent changes in FFmpeg regarding AVS are for AVS+ specific (extra) colorspaces. So it is supposed to work with AVS+ as well.

[nevcairiel]

LAV just uses ffmpeg, so if it doesn't work then it doesn't work. There is no AVS specific code in LAV itself.
Feel free to test with ffmpeg itself to see if it works there.

[djesteban]

Originally Posted by clsid

AviSynth scripts crash with AviSynthPlus r1576. Got broken between 0.68.1-25-82c5743 and 0.68.1-33-4fde984

Thanks for reporting it here clsid! I was about to post this too!
I will try to test it with the latest release of ffmpeg and post the result here.

[djesteban]

Hahaha! omg here's the message I got when trying to play my avs script in ffplay (comes with ffmpeg).
AviSynth version is too old. Please upgrade to either AviSynth 2.6 >= RC1 or AviSynth+ >= r1718.
So, i went to the Avisynth+ website thinking maybe I didn't click the right thing earlier this week when I upgraded my version... and it still downloads build r1576.....
So I checked here on Doom9 and found this post that was updated last July with a fork of the project hosted on github.
Newest version there is r2440
There is no installer, but you can use the installer from r2294 and overwrite the files manually after.
Will then work with ffmpeg , lav and mpc-hc

[LigH]

Do not go to the AviSynth+ website to download (it may still link the "ancient" non-MT release). Instead, check the forum thread for MT releases by pinterf, like Avisynth+ r2440-MT, or his releases on github.

[Q-the-STORM]

Is there a way to get the correct HDR infoframe from a file with LAV?

I use MPC-HC + LAV + madVR and a HDFury integral, so I can use HDR passthrough mode with madVR, but I still need the infoframe from the file for the Integral.

[clsid]

HDR passthrough mode in MadVR has not been implemented yet. It doesn't do anything right now...

[Q-the-STORM]

Originally Posted by clsid

HDR passthrough mode in MadVR has not been implemented yet. It doesn't do anything right now...

the passthrough of HDR metadata via infoframe has not been implemented. But, I don't need it if I use the Integral to inject the Infoframe myself. I just need the infoframe from the file so I can inject it.

[sneaker_ger]

Use MediaInfo to read HDR metadata from HEVC or MkvInfo to read from mkv/webm.

[CruNcher]

or
https://hdr.avtop.com/hdr_solutions_avtop

[EpsilonX]

@nevcairiel
Hi nev, I ran into a tiny problem with recent LAV, the last working revision was 0.68.1-46.
Since then, some videos became a stuttery mess, It can only be played normally if I disable DXVA.
Here's a short sample...

http://mir.cr/6KNZUMGL

PS:
Pay no attention to the video source

[NikosD]

Originally Posted by EpsilonX

@nevcairiel
Hi nev, I ran into a tiny problem with recent LAV, the last working revision was 0.68.1-46.
Since then, some videos became a stuttery mess, It can only be played normally if I disable DXVA.
Here's a short sample...

http://mir.cr/6KNZUMGL

PS:
Pay no attention to the video source

Can you upload it to sendspace.com or somewhere else that it doesn't need registration like your host ?