Can't decode mpeg 2 transport that VLC can decode.

[mordysh]

Hi,
I want to use your product to read RTP- UDP-Multicast mpeg2 transport
video with your NWPlayer.
Your filter recognize it. but shows black screen.
The rendered reports 0 frames received.

In the same situation - we also use VLC - and receive the video.

We use VLC ti rule out the option that the stream is wrong.

Do you have any suggestion?

   thanks,
     mordy.

[IvanR]

It is hard to say what is wrong right now.

Could you send more detailed report to tsup@elecard.ru

Please describe the situation as detailed as possible.
(How you arrange the broadcasting, what parameters do you use in NWPlayer...)

We will analyze it and answer you shortly.

[achr]

Simliar problem here. This is the scenario:

stream source:
VLC, UDP multicast-streaming udp://@224.0.0.1:1234 (no transcoding!), simple mpeg-video (tried different)

VLC is able to receive and decode the stream.

Next I tried to view the stream within GraphEdit.

I openend "elecard://224.0.0.1:1234/udp". The following graph is displayed:



If I press the play-button, the videowindow appears, but stays "black". No video at all.

Then I modified the graph like this (replaced the elecard mpeg decoder with ffdshow-tryouts-video-decoder):



As you can see, the video is playing well. During playback, this is the properties-page of the elecard-demuxer:



I tried different mpeg-videos. But none is working with elecard's mpeg decoder. They are only working with ffdshow-tryout. So my question is:

Is there a way to setup/save my modified graph as the system-default when opening "elecard://...." URLs (changing filter-merits seem not to work?!)? I would be pleased if you could tell me how to do this ...

with kind regards,

Alexander

[IvanR]

Hello Alexander,

1. First of all, please write the email to our technical support:

tsup@elecard.ru

Please attach dxdiag file from your PC to ensure me better to know what the exact versions of DirectShow filters you are using now.
 
Type DXDIAG [Enter] in command line or from menu Start -> Run... -> DXDIAG [Enter]. After completing of analyzing of your computer save data in TXT file by pressing button "Save All information..." and send as attachment in your email.

2.Use Elecard Sink filter to get the dump file from your streaming.
The graph should be very simple
NWSourcePlus -> Elecard Sink Filter

You can find Elecard Sink Filter in evaluation version of SDK that can be downloaded from our website.

Please upload target file to any FTP server and we will be able to analyze it. We will give you the address of our FTP server if you write an email to us.

[achr]

Dear IvanR,

Hello Alexander,

1. First of all, please write the email to our technical support:

tsup@elecard.ru

I already wrote to that email .. just before you did this post ****** ...

Please attach dxdiag file from your PC to ensure me better to know what the exact versions of DirectShow filters you are using now.
 
Type DXDIAG [Enter] in command line or from menu Start -> Run... -> DXDIAG [Enter]. After completing of analyzing of your computer save data in TXT file by pressing button "Save All information..." and send as attachment in your email.

Hmm, i will reply that to the "automatic ticket acknowledgement" mail that i received.

2.Use Elecard Sink filter to get the dump file from your streaming.
The graph should be very simple
NWSourcePlus -> Elecard Sink Filter

You can find Elecard Sink Filter in evaluation version of SDK that can be downloaded from our website.

Please upload target file to any FTP server and we will be able to analyze it. We will give you the address of our FTP server if you write an email to us.

I created the file and uploaded it to my personal ftp. I'll send you the URL together with the dxdiag-file by mail.

regards,
Alexander

[achr]

okay, here's some new information, which I verified on a 2nd machine:

The modified merits of ffdshow (prefer) and elecard mpeg2-decoder (don't use) are only recognized by <what>, if I install the elecard sdk.

That's bad. I don't want the SDK, I only need the "Elecard NWSource-Plus" and "Elecard RTSP NetSource" filter... But this two filters _must_ be able to set up work with ffdshow decoder. And at the moment it seems that this is only possible if i have the sdk installed. Is this a known/unknown bug?

- Alex

[IvanR]

There should be no problems with filters separately from SDK. SDK is needed if you want to configure the filters programmaticallly.