LAV Filters - DirectShow Media Splitter and Decoders

[nevcairiel]

I mean the libspeex stuff but I remember that from May.

Those are included in LAVs repository again.

[SamuriHL]

Those are included in LAVs repository again.

Yea, that's fine. Once I saw the date I realized they weren't from today's fun. :)

[glorp]

Aren't the settings stored either in the registry or ini depending on what the user chooses? So, couldn't someone in theory take the filterless version, set it up with lav as a sub-directory under the mpc-hc install, configure it to use those external filters, and package that? Granted you couldn't save the lav configuration as that's stored elsewhere, but, it's a hack around for now. Ideally they'd use the lav API to configure them on the fly but that requires coding.

The ini stores filter configurations by guid not path. MPC-HC prefers the .ini configuration over registry settings if the .ini is in the same directory as MPC. If you package the lite version with an ini that uses LAV filters it should work immediately on any other system as long as LAV is already installed and registered. Doesn't matter where the filters are located and you wouldn't necessarily need to include them although you could as long as they got installed and registered.

[SamuriHL]

Works great for lav. Not so great for mpc-hc:


ffmpeg.lib(timecode.o) : error LNK2001: unresolved external symbol ___ms_vsnpri
ntf [c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]
ffmpeg.lib(samplefmt.o) : error LNK2001: unresolved external symbol ___ms_vsnpr
intf [c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]
ffmpeg.lib(opt.o) : error LNK2001: unresolved external symbol ___ms_vsnprintf [
c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]
ffmpeg.lib(avstring.o) : error LNK2001: unresolved external symbol ___ms_vsnpri
ntf [c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]
ffmpeg.lib(bprint.o) : error LNK2001: unresolved external symbol ___ms_vsnprint
f [c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]
ffmpeg.lib(mpc_helper.o) : error LNK2019: unresolved external symbol ___ms_vsnp
rintf referenced in function _snprintf.constprop.0 [c:\dev\projects\mpc-hc\src\
mpc-hc\mpc-hc.vcxproj]
ffmpeg.lib(utils.o) : error LNK2001: unresolved external symbol ___ms_vsnprintf
[c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]
ffmpeg.lib(log.o) : error LNK2001: unresolved external symbol ___ms_vsnprintf [
c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]
ffmpeg.lib(pixdesc.o) : error LNK2001: unresolved external symbol ___ms_vsnprin
tf [c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]
c:\dev\projects\mpc-hc\bin\mpc-hc_x86\mpc-hc.exe : fatal error LNK1120: 1 unres
olved externals [c:\dev\projects\mpc-hc\src\mpc-hc\mpc-hc.vcxproj]


I suspect I have compile errors somewhere that I'll have to look into. My guess is some lib is missing somewhere.

[SamuriHL]

The ini stores filter configurations by guid not path. MPC-HC prefers the .ini configuration over registry settings if the .ini is in the same directory as MPC. If you package the lite version with an ini that uses LAV filters it should work immediately on any other system as long as LAV is already installed and registered. Doesn't matter where the filters are located and you wouldn't necessarily need to include them although you could as long as they got installed and registered.

That's certainly one temp option, then, yea? We don't even need to include it necessarily. We could just post one for people to use. "Here, install LAV, drop in this ini, done."

[glorp]

Just have to be sure the ini doesn't transport options you don't want from one system to another. Some optuions would be location dependent like MRU lists. Start with a fresh reset of MPC options to get the ini. The ini first gets generated when you choose the option to use it from MPC and then it starts with settings which come from whatever is currently set in the registry. It will always use the ini until you delete it (or turn off the option) and then it rereads the registry. Can be a little tricky when trying to reset things.

Never played with it but there's also switches to load filters from the command line which might be useful I suppose.

[clsid]

You don't need to do anything special to use LAV Filters with MPC-HC Lite. Simply install both and it should work. With regular MPC-HC all you need to do is disable unwanted internal filters. There is no need for any external filter settings or messing with INI files.

[SamuriHL]

Sweet. We should be telling more people this.

[clsid]

Yes, it seems some people think you need to add stuff to external filters for MPC-HC to be able to use them. But reality is that MPC-HC will automatically use the filters that are installed on your system when needed, like any other DirectShow player. The external filter settings are for overriding filter merits. Something that is rarely needed with a proper set of installed filters that are configured correctly.

[SamuriHL]

Yea, well, we all know that people's machines aren't always clean. ;)

[clsid]

That should rarely be a problem thanks to the high merit of the LAV decoders and the way the source filter sets itself as preferred.

[SamuriHL]

Fair enough. We just need to get people to understand that more then. Cause I didn't even realize that it'd naturally try to use LAV without forcing it in the external filters. Good to know.

[powder21]

Ok, so I've been using AC3Filter for my audio decoding until a mixer is implemented in LAV (currently only have stereo speakers available). I know I can use ffdshow post-processing and still use LAV for audio decoding, but I like AC3Filter's mixer better. Is there any way I can get LAV to do the decoding and AC3Filter to do just mixing like a post-processing filter?

I'm pretty new to all this so please forgive me if that's a dumb question :) Thanks.

EDIT: It may be helpful to mention that I use Reclock as the audio renderer to take advantage of WASAPI because I also don't like the windows mixer. (Not sure if that info actually IS helpful, but just in case)

[kalston]

Ok, so I've been using AC3Filter for my audio decoding until a mixer is implemented in LAV (currently only have stereo speakers available). I know I can use ffdshow post-processing and still use LAV for audio decoding, but I like AC3Filter's mixer better. Is there any way I can get LAV to do the decoding and AC3Filter to do just mixing like a post-processing filter?

I'm pretty new to all this so please forgive me if that's a dumb question :) Thanks.

EDIT: It may be helpful to mention that I use Reclock as the audio renderer to take advantage of WASAPI because I also don't like the windows mixer. (Not sure if that info actually IS helpful, but just in case)

If you configure AC3Filter to run after LAV (like with ffdshow, "external filters" tab in MPC-HC) it should work just fine (if AC3Filter supports RAW audio input, but why wouldn't it).

[powder21]

If you configure AC3Filter to run after LAV (like with ffdshow, "external filters" tab in MPC-HC) it should work just fine (if AC3Filter supports RAW audio input, but why wouldn't it).

Hey yah that works. The input on AC3Filter changed to PCM floating point and I'm now getting activity on the LAV audio status. Cool...Thanks.

[ontherocks]

I have GeForce GT520.
mpc-hc.1.6.3.4992.x86
LAVFilters-0.50.5
Having problem bitstreaming DD+ tracks via HDMI. There is no audio.
Sample audio link below.
http://www.mediafire.com/?a3x0q52bg1av33m

Any help on this guys?

[wanezhiling]

Hi nev, would the native dxva decoder fall back to sw mode when it connected Haali video renderer? :)

Having a fallback would also be useful in case of for example AviSynth scripts or DirectShow-based video converters or any other situation where the decoder isn't connected to a renderer.

[clsid]

If you configure AC3Filter to run after LAV (like with ffdshow, "external filters" tab in MPC-HC) it should work just fine (if AC3Filter supports RAW audio input, but why wouldn't it).Using external filters is an inferior solution. It is not very flexible and doesn't fully allow different preferred decoders for different formats. LAV, AC3Filter and ffdshow all have options to configure which formats they should decode. The proper solution is to use those options. That gives full flexibility. Use decoder A for format B, and decoder C for format D if desired.

Want to use AC3Filter only as post-processor, and not as a decoder? Then simply uncheck all formats on the "System" tab in its settings. Only leave PCM (=uncompressed audio) enabled.

In LAV audio decoder the options can be found on the "Formats" tab. In ffdshow audio decoder on the "Codecs" page.

[nevcairiel]

Works great for lav. Not so great for mpc-hc

I put up the required extra libs on my mingw folder and a quick instruction what to do with them, builds fine for me now.

http://files.1f0.de/mingw/

[kalston]

Using external filters is an inferior solution. It is not very flexible and doesn't fully allow different preferred decoders for different formats. LAV, AC3Filter and ffdshow all have options to configure which formats they should decode. The proper solution is to use those options. That gives full flexibility. Use decoder A for format B, and decoder C for format D if desired.

Want to use AC3Filter only as post-processor, and not as a decoder? Then simply uncheck all formats on the "System" tab in its settings. Only leave PCM (=uncompressed audio) enabled.

In LAV audio decoder the options can be found on the "Formats" tab. In ffdshow audio decoder on the "Codecs" page.

Hum, that's actually what the setup I suggested should do.

You can always untick all formats apart from PCM in AC3 to make sure sure it's not decoding the audio again but he said "Hey yah that works. The input on AC3Filter changed to PCM floating point and I'm now getting activity on the LAV audio status. Cool...Thanks." so to me that means AC3 isn't actually decoding anything and is just processing the uncompressed audio LAV sends to it.

[SamuriHL]

I put up the required extra libs on my mingw folder and a quick instruction what to do with them, builds fine for me now.

http://files.1f0.de/mingw/

Oh wow, sweet! Thanks!!!!

[dawar49]

nev,

speaking of updated toolchains, lav builds and runs fine using visual studio 2012 rc with two minor changes. they seem to be a standards compliance issues only.

common/DSUtilLite/gpu_memcpy_sse4.h is missing an include statement for <smmintrin.h>
decoder/LAVVideo/LAVPixFmtConverter.h is missing an include statement for <emmintrin.h>

[zerowalker]

Is there anyone else who get´s Dll crashes with Lagarith decoding enabled?
I get it when it´s trying to get thumbnails from the files.

[blakkheim]

First off, just wanted to say thanks for Lav Filters and all the hard work you put into it Nev.

Secondly, I didn't feel like going thru 570+ pages and search/google couldn't provide an answer so my question is:

I got Lav Splitter to load the language track I want, but there are 2 English subtitle tracks and I want Lav to load the 2nd English track. What do I have to put under Properties to get Lav Splitter to load the 2nd English Subtitle Track w/o manually going to the 2nd track?

I read the readme on 1f0.de and tried multiple variations using Advanced but I can't get Lav Splitter to load the 2nd English Subtitle Track automatically.

Lav 50.5 + MPC-HC v1.6.2.4902

Any help is greatly appreciated.

[nevcairiel]

If both tracks have the same language and no other flags are different either, there is currently no way to select the second track automatically.
I'm open for ideas how to solve this, but an option like "use the second track, if it exists" seems rather specific, next someone will ask for the 3rd, etc.

[patul]

If both tracks have the same language and no other flags are different either, there is currently no way to select the second track automatically.
I'm open for ideas how to solve this, but an option like "use the second track, if it exists" seems rather specific, next someone will ask for the 3rd, etc.

Drop down list? Use x track if it exists? However, I myself never find the need of this requested "feature".

[DragonQ]

You could always remux it so the track you want is set as default. Doesn't take long.

[blakkheim]

^ This I know. Didn't feel like doing it for 26 eps individually unless you know how to do all 26 at the same time w/o doing each one individually.

Thanks anyway Nev. I looked at the tags and they are both [eng] so I know there's no way then to default to the second track.

[JEEB]

You could automate the remuxing with batch files or something, which should work as long as long as the basic structure of the files keeps the same. Adding mkvinfo to the mix could possibly let you automate it even more with different structures.

VLC tries to solve this problem with having an open integer setting that pretty much is "Default to subtitle track number X", which A) I'm not really sure is the correct way to deal with it, and B) Led to funny results the next time I loaded up a file with <X subtitle tracks :)

[robpdotcom]

You could just use mmg's header editor to change the default flags - or even change the language. Would be much faster than remuxing (only a few seconds for each file).

[Cudo]

Using external filters is an inferior solution. It is not very flexible and doesn't fully allow different preferred decoders for different formats. LAV, AC3Filter and ffdshow all have options to configure which formats they should decode. The proper solution is to use those options. That gives full flexibility. Use decoder A for format B, and decoder C for format D if desired.

Want to use AC3Filter only as post-processor, and not as a decoder? Then simply uncheck all formats on the "System" tab in its settings. Only leave PCM (=uncompressed audio) enabled.

In LAV audio decoder the options can be found on the "Formats" tab. In ffdshow audio decoder on the "Codecs" page.
It would be nice if there was a way to force different settings not only based on the fomat, but on other things too. I use two different copies of MPC-HC.exe with the "Store settings in .ini file" option ticked. :D

[clsid]

What other things might that be?

Btw, you don't need to use an INI for both. One could use the Registry (and load a bit faster).

[DragonQ]

^ This I know. Didn't feel like doing it for 26 eps individually unless you know how to do all 26 at the same time w/o doing each one individually.

Thanks anyway Nev. I looked at the tags and they are both [eng] so I know there's no way then to default to the second track.
You can do this with a batch file but it took me a while to work out how to do this. There is some documentation but it was difficult to find examples IIRC.

[glorp]

^ This I know. Didn't feel like doing it for 26 eps individually unless you know how to do all 26 at the same time w/o doing each one individually.

Thanks anyway Nev. I looked at the tags and they are both [eng] so I know there's no way then to default to the second track.

Load one of the files to be changed into mkvmerge gui, change everything you need to change to remux (probably set the default flag of the sub track you want to prefer) then select mkvmerge menu: Muxing->Show the command Line. Copy the output that shows and paste into a new .txt file 26 times. Edit the input and output filenames of each entry (which probably means changing to 02, 03, 04...), save as .bat, run it. Go get a cup of coffee.

I just got done doing this myself a few minutes ago :)

[kitame]

If both tracks have the same language and no other flags are different either, there is currently no way to select the second track automatically.
I'm open for ideas how to solve this, but an option like "use the second track, if it exists" seems rather specific, next someone will ask for the 3rd, etc.

how about adding a checkbox that has a feature of "if multiple tracks of the same type are present, flag each track with numbers".
now with that you could type in the selection into " Eng2 : off ; Eng1 : off ; * : Eng2 ; * : Eng1 "

simply put splitter would be renaming the flags by itself but not necessarily modifying the file.

Edit: also, can i request an individual channel volume control in the audio? well because some of the multi-channel when down-muxed to stereo overpowers the main left and right.

[glorp]

If both tracks have the same language and no other flags are different either, there is currently no way to select the second track automatically.
I'm open for ideas how to solve this, but an option like "use the second track, if it exists" seems rather specific, next someone will ask for the 3rd, etc.

On a related subject, would you reconsider allowing the advanced mode to specify audio language preferences too or somehow using the default and forced flags on audio streams to override audio track language selections? I'm speaking about the cases like where something is a "foreign" language film but has an audio commentary track in a preferred language that you don't necessaily want to have selected as default.

[kasper93]

@nev
http://forum.doom9.org/showpost.php?p=1577657&postcount=11254 I don't know if you have seen it? Maybe it's not important for you, but I don't like ffdshow and unfortunately I'm forced to use it ;/

[clsid]

Making the audio and subtitle selection logic more complex is a bad idea.

What some of the users above need is a very basic and easy to use tool for editing the MKV header.

[Pat357]

Load one of the files to be changed into mkvmerge gui, change everything you need to change to remux (probably set the default flag of the sub track you want to prefer) then select mkvmerge menu: Muxing->Show the command Line. Copy the output that shows and paste into a new .txt file 26 times. Edit the input and output filenames of each entry (which probably means changing to 02, 03, 04...), save as .bat, run it. Go get a cup of coffee.

I just got done doing this myself a few minutes ago :)

Here is a much faster and a lot easier method :
JMKVPropedit = "MKVpropedit with a nice GUI and batch support" : http://jmkvpropedit.googlecode.com/ ;)

A real time-saver for such things as changing the default track for over 20+ MKV's :)

[wanezhiling]

http://www.mediafire.com/?3xd2xuden467l3s

Tested all splitters, only LAV Splitter can work, but no image no audio.

nev is the file broken?

[nevcairiel]

If nothing works, what makes you think the file might not be broken? :P

[wanezhiling]

Someone didn't trust what I said to him, so I proved to him.:p

Thanks nev.

[jmone]

Hi Nevcairiel, any progress with madshi on BD 3D support (as I now how a whole 2 x 3D disks!)

[nevcairiel]

Hi Nevcairiel, any progress with madshi on BD 3D support (as I now how a whole 2 x 3D disks!)

No-one is working on this (at least i am not, cannot speak for anyone else, i guess). I dunno where you got this idea.

[Sebastiii]

jmone how did you handle it ?
I have see that Stereoscopic Player works for BD3D, it use MPC-HC Source to output 2 Video pin and was connected to CoreMVC decoder (2 Video pin input).
I'm not sure that LAV Splitter can handle it right now (it seems that it will break IAMStreamSelect ?)
But like CoreMVC is not available, but not that Nevcairiel can start to working on it :)

[jmone]

Sorry - I did not mean to imply any work had started more so there was just general discussion a month or so about it. For the (very) odd 3D disc we just manually fire up TMT.

[v0lt]

@nevcairiel
LAV Splitter hangs on this file.
http://www.mediafire.com/?2ac07wbyndam8m8
It's not ogg vorbis, splitter must skip it.

[nevcairiel]

@nevcairiel
LAV Splitter hangs on this file.
http://www.mediafire.com/?2ac07wbyndam8m8
It's not ogg vorbis, splitter must skip it.

I dunno what you mean, my LAV trys to open that file, fails, and then MPC-HC says "cannot render file"

[clsid]

I have a question regarding container PAR vs stream PAR. Currently LAV Video defaults to always using the stream PAR, because the container PAR might be unreliable/wrong in some cases.

Which containers have a PAR that is more often wrong than right? I assume it is mostly a problem with MPEG-TS?
Which containers are likely to have a correct PAR that is intentionally different from the stream PAR? I was thinking AVI, MKV, and MP4.

What do you think about the idea of changing the current "Use Stream Aspect Ratio" option to a dropdown with three options: Automatic/Use Stream AR/Use Container AR? The automatic option will use container PAR for reliable containers and stream PAR otherwise.

[nevcairiel]

Detecting which container is used is not something you can reliably use. Sure, you can check based on the filename, but sometimes that just not good enough.

I could add an option to LAV Splitter to tell LAV Video which container is used, but that is again only half a solution.

Haali solves this by overwriting the Stream AR in the video bitstream when using a "reliable" container, which i did think about also doing, but then again its a rather destructive option.

Doing it based on a filename guess may work, in most cases the filename is available, and cases where the file is renamed are usually rare (but happen more often then you think).
I'll consider it.