LAV Filters - DirectShow Media Splitter and Decoders - Page 768

nevcairiel · 10th June 2013, 20:06

RGB48 should really only be used if the source is already RGB48, but i suppose i can check that the double expansion is at least avoided.

dansrfe · 10th June 2013, 21:59

This is off-topic but I was attempting to play a live mov video/audio stream (WWDC conf) with MPC-HC and LAV Filters and I get this message: File Source (Async.)::Output saying that MPC-HC cannot render, etc. Is there a simple way to solve this?

I would watch it like normal but I don't want to have to install quicktime...

ThurstonX · 10th June 2013, 22:18

Quote:

Originally Posted by dansrfe

This is off-topic but I was attempting to play a live mov video/audio stream (WWDC conf) with MPC-HC and LAV Filters and I get this message: File Source (Async.)::Output saying that MPC-HC cannot render, etc. Is there a simple way to solve this?

I would watch it like normal but I don't want to have to install quicktime...

Not sure if this will help you, but you can avoid the full QuickTime install.

http://en.wikipedia.org/wiki/QuickTime_Alternative

clsid · 10th June 2013, 22:43

Quote:

Originally Posted by nevcairiel

A status tab is planned, although i'm not sure what much information to all show there.

* FourCC
* Format name/description
* Profile info when relevant in case of H.264/VC1/etc.
* Decoder (libavcodec/ms dmo/cuvid/dxva/qs)
* Video resolution
* Container AR + bitstream AR
* Decoder colorspace + PC/TV range
* Output colorspace + PC/TV range
* Interlacing info + field order

Reino · 10th June 2013, 23:12

Just like FFDShow I'd really welcome some information upon hoovering over the tray-icons.

huhn · 10th June 2013, 23:45

that the point u r not getting this.

it's an example

ddjmagic · 11th June 2013, 16:25

Code:

BluRay Support
Support for opening BluRay playlists (.mpls), as well as the index.bdmv file, which will try to detect the main movie playlist!

Any chance of LAV reading playlist info from the 'disc.inf' file to help improve main movie playlist detection on a BD?

clsid · 11th June 2013, 19:12

Can you add the new utvideo FourCCs and option for G2Meeting decoder?

noee · 15th June 2013, 14:34

Git Rev: 40a94b8fd613

Needs double quotes around custom build step for manifest copy, such as:

copy "%(FullPath)" "$(IntermediateOutputPath).."

nevcairiel · 15th June 2013, 14:46

Fixed

Name User · 16th June 2013, 01:43

I was using Haali Media Splitter at first, but decided to switch to LAV Filters and noticed when making GIF files with AvsPmod, the file sizes are mostly different.

The smaller sizes with LAV are welcome, but some are bigger. One of the GIFs with Haali is 3.80 MB and the same one with LAV Filters is 5.03 MB.

What causes them to be smaller/bigger with LAV Filters?

ryrynz · 16th June 2013, 08:05

Nevcairiel is there any performance improvement to be had with a Haswell based CPU with -march=core-avx2 switches in GCC4.8.1 with LAV?
This article here shows some substantial benefits with some apps.

nevcairiel · 16th June 2013, 08:07

All the important code is manually asm optimized in ffmpeg. The difference would be marginal.

Edit:
Did a quick test.

The default build measured an average of 121.19 fps on my choosen sample.
Using -march=core-avx2, the average was 122.71 fps (or 101.2%), hardly worth the custom build, if you ask me.

You can probably get some more speed by adding AVX2 variants of the handwritten ASM code in some situations, though.

petran79 · 16th June 2013, 16:41

Quote:

Originally Posted by petran79

Having two gpus messes up the system...

I have a laptop with an optimus card (nvidia gt555m and intel 3000)

Lav 64 detects cuvid (nvidia gpu light flashes)
It also detects dvxa through intel card. Nvidia light doesnt flash. So lav detects the card but quicksync codec isnt detected

.

for the record, this problem occurs only with Potplayer 64-bit version and LAV Video. Havent tested any other players.

In MPC-HC 64-bit, Intel Quicksync is detected without problems

wanezhiling · 17th June 2013, 05:41

Run your PotPlayerMini64.exe in iGPU mode.(go into Nvidia Control Panel to set that.)

ryrynz · 17th June 2013, 05:46

Quote:

Originally Posted by nevcairiel

Did a quick test.

The default build measured an average of 121.19 fps on my chosen sample.
Using -march=core-avx2, the average was 122.71 fps (or 101.2%), hardly worth the custom build, if you ask me.

Interesting, you were bang on and yes for 1% difference it's not worth it.

Quote:

Originally Posted by nevcairiel

You can probably get some more speed by adding AVX2 variants of the handwritten ASM code in some situations, though.

One can hope one of the devs will take an interest in optimizing some code in the future.

Aleksoid1978 · 17th June 2013, 07:26

nevcairiel

I see you add support for G2M2/G2M3 - but ffmpeg do not support decoding this video.

wanezhiling · 17th June 2013, 08:03

About G2M, here is a sample: http://www.sendspace.com/file/ftysdu

blackscreen with lav, fine with offical codec

Aleksoid1978 · 17th June 2013, 08:10

Quote:

Originally Posted by wanezhiling

About G2M, here is a sample: http://www.sendspace.com/file/ftysdu

blackscreen with lav, fine with offical codec

Because ffmpeg do not support:

Code:

    if ((magic & 0xF) != 4) {
        av_log(avctx, AV_LOG_ERROR, "G2M2 and G2M3 are not yet supported\n");
        return AVERROR(ENOSYS);
    }

mecedo · 17th June 2013, 09:53

Hi. Can you check this sample:

https://hotfile.com/dl/229086480/561...012).m2ts.html

I can't manage it. With nvidia GPU it plays without any problems. But on computers with Intel HD Graphics when hardware acceleration is used with LAV Splitter then this movie stutters every second. Changing splitter from LAV Splitter to any other resolves problem.

10th June 2013, 20:06	#15341 \| Link
nevcairiel Registered Developer Join Date: Mar 2010 Location: Hamburg/Germany Posts: 10,348	RGB48 should really only be used if the source is already RGB48, but i suppose i can check that the double expansion is at least avoided. __________________ LAV Filters - open source ffmpeg based media splitter and decoders

10th June 2013, 23:12	#15345 \| Link
Reino Registered User Join Date: Nov 2005 Posts: 693	Just like FFDShow I'd really welcome some information upon hoovering over the tray-icons. __________________ My hobby website

10th June 2013, 23:45	#15346 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 7,928	that the point u r not getting this. it's an example Last edited by huhn; 11th June 2013 at 00:06.

11th June 2013, 16:25	#15347 \| Link
ddjmagic Registered User Join Date: Jan 2007 Posts: 110	Code: BluRay Support Support for opening BluRay playlists (.mpls), as well as the index.bdmv file, which will try to detect the main movie playlist! Any chance of LAV reading playlist info from the 'disc.inf' file to help improve main movie playlist detection on a BD?

11th June 2013, 19:12	#15348 \| Link
clsid ***** Join Date: Feb 2005 Posts: 5,647	Can you add the new utvideo FourCCs and option for G2Meeting decoder? __________________ MPC-HC 2.2.1

10th June 2013, 21:59	#15342 \| Link
dansrfe Registered User Join Date: Jan 2009 Posts: 1,210	This is off-topic but I was attempting to play a live mov video/audio stream (WWDC conf) with MPC-HC and LAV Filters and I get this message: File Source (Async.)::Output saying that MPC-HC cannot render, etc. Is there a simple way to solve this? I would watch it like normal but I don't want to have to install quicktime...

15th June 2013, 14:34	#15349 \| Link
noee Registered User Join Date: Jan 2007 Posts: 530	Git Rev: 40a94b8fd613 Needs double quotes around custom build step for manifest copy, such as: copy "%(FullPath)" "$(IntermediateOutputPath).."

15th June 2013, 14:46	#15350 \| Link
nevcairiel Registered Developer Join Date: Mar 2010 Location: Hamburg/Germany Posts: 10,348	Fixed __________________ LAV Filters - open source ffmpeg based media splitter and decoders

16th June 2013, 01:43	#15351 \| Link
Name User Registered User Join Date: Apr 2013 Posts: 5	I was using Haali Media Splitter at first, but decided to switch to LAV Filters and noticed when making GIF files with AvsPmod, the file sizes are mostly different. The smaller sizes with LAV are welcome, but some are bigger. One of the GIFs with Haali is 3.80 MB and the same one with LAV Filters is 5.03 MB. What causes them to be smaller/bigger with LAV Filters? Last edited by Name User; 16th June 2013 at 01:50.

16th June 2013, 08:05	#15352 \| Link
ryrynz Registered User Join Date: Mar 2009 Posts: 3,651	Nevcairiel is there any performance improvement to be had with a Haswell based CPU with -march=core-avx2 switches in GCC4.8.1 with LAV? This article here shows some substantial benefits with some apps.

16th June 2013, 08:07	#15353 \| Link
nevcairiel Registered Developer Join Date: Mar 2010 Location: Hamburg/Germany Posts: 10,348	All the important code is manually asm optimized in ffmpeg. The difference would be marginal. Edit: Did a quick test. The default build measured an average of 121.19 fps on my choosen sample. Using -march=core-avx2, the average was 122.71 fps (or 101.2%), hardly worth the custom build, if you ask me. You can probably get some more speed by adding AVX2 variants of the handwritten ASM code in some situations, though. __________________ LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 16th June 2013 at 09:06.

17th June 2013, 05:41	#15355 \| Link
wanezhiling Registered User Join Date: Apr 2011 Posts: 1,184	Run your PotPlayerMini64.exe in iGPU mode.(go into Nvidia Control Panel to set that.)

17th June 2013, 07:26	#15357 \| Link
Aleksoid1978 Registered User Join Date: Apr 2008 Location: Russia, Vladivostok Posts: 2,791	nevcairiel I see you add support for G2M2/G2M3 - but ffmpeg do not support decoding this video. __________________ AMD Ryzen 5 3600 /GIGABYTE B450 Gaming X /Patriot 32Gb@3200 /Kingston 500Gb M.2 /RTX 4060 /Samsung U28R550UQI /OLED Philips 55OLED707 /Yamaha RX-V471 + NS-555 + NS-C444 + NS-333 + YST-SW215

17th June 2013, 08:03	#15358 \| Link
wanezhiling Registered User Join Date: Apr 2011 Posts: 1,184	About G2M, here is a sample: http://www.sendspace.com/file/ftysdu blackscreen with lav, fine with offical codec

17th June 2013, 09:53	#15360 \| Link
mecedo Registered User Join Date: Jun 2011 Posts: 26	Problematic m2ts Hi. Can you check this sample: https://hotfile.com/dl/229086480/561...012).m2ts.html I can't manage it. With nvidia GPU it plays without any problems. But on computers with Intel HD Graphics when hardware acceleration is used with LAV Splitter then this movie stutters every second. Changing splitter from LAV Splitter to any other resolves problem.