Decklink x264

[leoenc]

Is there any way to run x264 as a DirectShow filter, to encode real-time from a Blackmagic Decklink card?

BTW, I noticed the Direct264 project but that's still a CLI x264.exe and not a filter I could use in GraphEdit.

[LoRd_MuldeR]

I think Monogram has a DirectShow encoding filter based on x264 code:
http://blog.monogram.sk/janos/2008/11/27/monogram-x264-encoder-1010/

(However it looks like that one isn't updated frequently)

[leoenc]

Thanks, I'll have a look.

[Blue_MiSfit]

If you can get the card to work right in VFW, you can use VirtualDub :)

Ugly, but it does work :devil:

Derek

[roozhou]

Hi leoenc,

How does your card work in directshow? Does it connect to the video renderer? If it does, you can use direct264 (http://forum.doom9.org/showthread.php?t=141441). Build the graph in graphedit, keep the video renderer, make sure it outputs YV12 or NV12, and save the graph to a .grf file. Then encode the .grf file with x264.exe.

[leoenc]

@Blue_MiSfit,

But then I'm forced to put the x264 output in an AVI container, right?

@roozhou,

Decklink comes with DS filters for video and audio captures. It connects to the video renderer.
Do you mean capturing and then encoding, in 2 separate processes? Because that is what I'm currently doing.
I would like to encode the incoming stream in real-time.

[nm]

@Blue_MiSfit,

But then I'm forced to put the x264 output in an AVI container, right?

x264vfw can write the output directly to MKV and MP4 files.

Decklink comes with DS filters for video and audio captures. It connects to the video renderer.
Do you mean capturing and then encoding, in 2 separate processes?

No, roozhou means real-time encoding with a defined graph.

[Blue_MiSfit]

@leoenc: as nm says, x264vfw has some nice hackery that lets it output just a placeholder avi, and use its own output modules to write mkv or mp4. I think it does other formats too, like elementary streams, flv, etc...

Derek