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[jmone]

You don't.  In fact it will not work if it is mismatched (you will only get a black screen).  So, if you are using the SDK method, you have to set it to match.

[alext77]

Hello guys.

Tomorrow I should get an hdmi device allowing to force its output in a given resolution (let say 2160p23) and it should be also able to send LPCM up to 7.1. This should make my tests easier.

I know how to copy paste the directshow filter graph and start a log file.

It’s 23:00 in France, bye bye.

[Yaobing]

My question is why would you want something other than what the source provides?

Ie you have some source device, it will.have it's own configuration that controls what it outputs. Why would you want the capture to do anything other than pass that through to MC which deals with anything required to fit the output format?

It's all I did with the magewell SDK so just wondering what I am missing, if anything.

The source usually is configurable. With "Blackmagic WDM Capture" device, the user can run the filter property page and set the format. But with "DeckLink Video Capture", as Nathan discovered, the property page does not offer all formats.

I was thinking the same thing when I started, but I can not wrap my head around it when their API offers a list of possible formats, but does not tell which format the source sends. Or I did not find the right API function?

[Yaobing]

Please try this new DLL.

Nathan, for you there is not much change, as I only made sure I initialized the structure. So don't be surprised that it does not make any difference.

The dll should be used with the latest beta.

alext77, you can download and install this version first, before you copy the DLL:

MediaCenter For test

I added some code to insert LAV Audio Decoder during graph building.

[mattkhan]

Fwiw I decide that based on a few values coming in on the signal

https://github.com/3ll3d00d/mwcapture/blob/main/mwcapture/mwcapture.cpp#L1098

I guess this same info is mostly found somewhere in BMDDeckLinkStatusID by the looks of it

[jmone]

Nathan, for you there is not much change, as I only made sure I initialized the structure. So don't be surprised that it does not make any difference.

Did a quick test. Seemed the same.

[alext77]

Please try this new DLL.

Nathan, for you there is not much change, as I only made sure I initialized the structure. So don't be surprised that it does not make any difference.

The dll should be used with the latest beta.

alext77, you can download and install this version first, before you copy the DLL:

MediaCenter For test

I added some code to insert LAV Audio Decoder during graph building.

Hello,

Yaobing, have you received my private message ?

Installation of MC 51 is done but I still cannot see LAV audio decoder in the directshow filters :

below the copy/paste :

Filter Graph Info (TV graph):

    Filter 'JRiver Audio Renderer'
        CLSID: {A4002F8E-510F-442C-8AD3-F9C7B23FB394}
        Host:
        Input Pin 'In'
            Connected to pin 'Capture' of filter 'Decklink Audio Capture'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx

    Filter 'JRVR'
        CLSID: {555E6803-14EF-4946-8646-B6EF9E9121E2}
        Host:
        Input Pin ''
            Connected to pin 'XForm Out' of filter 'AVIDecompressor'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_RGB32, Format type FORMAT_VideoInfo

    Filter 'Decklink Audio Capture'
        CLSID: {AAA22F7E-5AA0-49D9-8C8D-B52B1AA92EB7}
        Host: c:\program files\blackmagic design\blackmagic desktop video\decklink64.dll
        Output Pin 'Capture'
            Connected to pin 'In' of filter 'JRiver Audio Renderer'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx

    Filter 'AVIDecompressor'
        CLSID: {CF49D4E0-1115-11CE-B03A-0020AF0BA770}
        Host: c:\windows\system32\quartz.dll
        Input Pin 'XForm In'
            Connected to pin 'Capture' of filter 'Decklink Video Capture AFF3E920987F1D8D'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {43594448-0000-0010-8000-00AA00389B71}, Format type FORMAT_VideoInfo
        Output Pin 'XForm Out'
            Connected to pin '' of filter 'JRVR'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_RGB32, Format type FORMAT_VideoInfo

    Filter 'Decklink Video Capture AFF3E920987F1D8D'
        CLSID: {44A8B5C7-13B6-4211-BD40-35B629D9E6DF}
        Host: c:\program files\blackmagic design\blackmagic desktop video\decklink64.dll
        Output Pin 'Capture'
            Connected to pin 'XForm In' of filter 'AVIDecompressor'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {43594448-0000-0010-8000-00AA00389B71}, Format type FORMAT_VideoInfo
        Output Pin '~VANC'
        Output Pin '~Timecode'

[alext77]

Some news :

My source can send 2160p23 HDR, I can check it with my VERTEX that I have installed in between my source and the blackmagic board. I can see the metadata sent to the board. The issue is JR video renderer don’t see the meta data.

About audio : my source can send LPCM up to 7.1 but JR audio renderer can see only 2 channels. With LPCM 2.0 it is consistent but with moré Channel I can hear only the side or the rear channels.

[Yaobing]

Some news :

My source can send 2160p23 HDR, I can check it with my VERTEX that I have installed in between my source and the blackmagic board. I can see the metadata sent to the board. The issue is JR video renderer don’t see the meta data.

About audio : my source can send LPCM up to 7.1 but JR audio renderer can see only 2 channels. With LPCM 2.0 it is consistent but with moré Channel I can hear only the side or the rear channels.

Did you copy the JRTelevision.dll over after you installed the new version of MC?

You can email me a log if you prefer. yaobing at jriver

[alext77]

Yes I did. I will send you an email.

Have you reveived my private message ?

[alext77]

Did you copy the JRTelevision.dll over after you installed the new version of MC?

You can email me a log if you prefer. yaobing at jriver

Log sent by email. (alex_xxxxx at yahoo fr, check your spam)

[Yaobing]

Yes I got your PM.

[alext77]

Hello

If you want me to test anything, I’m ready

[Yaobing]

Hello

If you want me to test anything, I’m ready

I received the log by email.

The log shows that the audio was PCM. That is why LAV Audio decoder filter was not involved. I believe LAV decoder filters are designed to connect to only compressed media formats, not uncompressed ones.

Here is the sequence of what went on:

1. We try connecting LAV. It failed to connect because the audio is PCM.
2. We try connecting without an intermediate filter (from the capture filter to the renderer directly). That succeeded.

The video format is 'HDYC' which is not in our code. So somehow the filter's output already got that.

We are currently not messing with the audio output pin yet, so whatever format configured at the audio output pin must be the default, which would be plain PCM.

[mattkhan]

Are you sending pcm or compressed?

[alext77]

Hello.

The source sends LPCM multichannel or stereo but it can send DD 5.1 as well, I tested LPCM 2.0 and DD 5.1 and LAV audio decoder was not in the filter list in both cases, I will redo the test later on with a log file.

Thanks.

[Yaobing]

Hello.

The source sends LPCM multichannel or stereo but it can send DD 5.1 as well, I tested LPCM 2.0 and DD 5.1 and LAV audio decoder was not in the filter list in both cases, I will redo the test later on with a log file.

Thanks.

After you try this and produce a log, I would like you to try the following too:

Go to TV Options, select your Blackmagic device and click Configure button.

In Advanced section, there is a list of DirectShow property pages. Look for "Audio Capture Pin...", "Video Capture Pin...", and "Video Capture Filter...". You may or may not have all of them. If you find "Audio Capture Pin...", double click it to bring up the property page.  If you don't find it, try "Video Capture Filter...". On the property page, do you see anything that allows you to select an audio format? If so, what are the choices?

[alext77]

After you try this and produce a log, I would like you to try the following too:

Go to TV Options, select your Blackmagic device and click Configure button.

In Advanced section, there is a list of DirectShow property pages. Look for "Audio Capture Pin...", "Video Capture Pin...", and "Video Capture Filter...". You may or may not have all of them. If you find "Audio Capture Pin...", double click it to bring up the property page.  If you don't find it, try "Video Capture Filter...". On the property page, do you see anything that allows you to select an audio format? If so, what are the choices?

Hello, I will do/check in few days. Thanks for your support.

[alext77]

Hello everyone.

I’m still there and motivated for testing my black magic device. I was sick during almost a month, next week I should be able to play with JRiver again.

[Yaobing]

Hello everyone.

I’m still there and motivated for testing my black magic device. I was sick during almost a month, next week I should be able to play with JRiver again.

I am sorry about your illness. Hope you have recovered well. Welcome back!

Currently I don't have anything to test. I will let you know when I make some changes. Thanks.

[jsmith967]

I'm also ready to test anything to move this project forward.

[mattkhan]

am I right in thinking that these devices/cards only support 48kHz audio? the specs and sdk manual would say this is true but would be good to know for sure

[Yaobing]

I don't know.

[claw]

A year and a half ago, I was somewhat active in this thread...

https://yabb.jriver.com/interact/index.php/topic,131791.0.html

At that time, I used the WDM device and was trying to get HDR10 metadata applied since the DeckLink cards do not pass metadata.   I configured this metadata filter but it was only called for disk media playback and not for live input.

https://github.com/defl/directshow_metadata_injector_filter

That was when I halted my testing.

Has direction changed to use the Decklink device instead of WDM?

[mattkhan]

I realised recently that no capture card (that I can find) reliably supports 192kHz audio, they either support it but have implementation issues (magewell pro) or simply do not support it (everything else). Given this it must mean you're reliant on the source device to decode and produce LPCM audio or can only support AC3 (which seems unrealistic given how widespread eac3 is) hence I was wondering what source devices people are intending to use with this setup?

[jsmith967]

I think the typical use case for this capturing feature is for the capturing HTPC to render only the video, not decode the audio too. As is the case with VideoProcessor w/ MadVR that many users want to replace with JRiver w/ JRVR, the capture device only processes the video and the audio goes to the AVR for decoding and processing. So for my setup, for example:

Streamer > AVR > HTPC Capture card > Display

The most desirable outcome sought here is Dynamic Tone Mapping (and secondarily scaling) for streaming sources. I am only interested in JRVR capturing 4K HDR and rendering using JRVR.

[mattkhan]

Yeah I know people do that but I am interested in the pure htpc solution, I have no interest in needing to spend storm or trinnov money just to get enough channels and (barely enough) dsp capability

[claw]

I realised recently that no capture card (that I can find) reliably supports 192kHz audio, they either support it but have implementation issues (magewell pro) or simply do not support it (everything else). Given this it must mean you're reliant on the source device to decode and produce LPCM audio or can only support AC3 (which seems unrealistic given how widespread eac3 is) hence I was wondering what source devices people are intending to use with this setup?

I too don't care about audio capabilities.  I have an Atmos sound system that the AVR feeds.  I won't give up Atmos for LPCM or less.

[mattkhan]

just to be clear, I know people want a videoprocessor replacement, I don't and my Q is not to those people. My Q is addressed to the people, if any exist, who also want audio put through here.

[mastermind]

I'm one of them. Ready to test!

[OverTheAir]

just to be clear, I know people want a videoprocessor replacement, I don't and my Q is not to those people. My Q is addressed to the people, if any exist, who also want audio put through here.

It might be helpful for your purposes and enable more qualified responses from others, if you outlined more about potential use cases for audio through these cards, including potential limitations, so responders would know whether it would fit their anticipated requirements. A 100 people saying they want something, only to turn into zero because of other limitations probably wouldn't help you.
 
To illustrate with my example. Your earlier post suggested a pure HTPC solution with Storm/Trinnov channel counts and greater processing. If such a solution also had a robust way to decode Atmos (i.e. not relying on getting access to Dolby Reference Player unless Dolby changes its position on this) then I would be interested in such a solution and hence would want audio through the card. I ran a pure HTPC solution with soundcard direct to a power amp for decade with no AVR needed for up to 5.1 playback of Blu-ray, music, and recorded over the air TV, so I'm not a stranger to this solution. However, what caused me to get an AVR was a desire for Atmos, so if that wasn't also part of the HTPC solution then I wouldn't be interested in audio through the card.

[mattkhan]

there's no known card that supports 192kHz audio reliably (the magewell supports it but, in my system at least, it can't do it reliably, have a ticket open with them to see if it's something they reproduce) so you have to route audio via an AVR if the source doesn't decode (as all modern codecs bitstream at 192kHz) hence I'm just curious what source devices people are using that happily decode everything to 48kHz multichannel lpcm

[claw]

With an Apple TV 4K, if you set Audio Format to Auto and Dolby Atmos to OFF, it will output 24 bit 48kHz LPCM.  Depending on the content, it can be from 2 channel up to 7.1 channel LPCM.   Apple TV does not support anything higher than 48kHz.

Video and Audio format reported by HDfury VRROOM while playing a Netflix Atmos title:

VIDEO TX0:
4K59.941 593MHz 422 BT2020 12b HDR

AUDIO OUT:
L-PCM 48kHz 7.1ch 24bit