View Full Version : x264 realtime capture/encode?
ArcticFox
1st April 2005, 22:10
Im looking into setting up a HTPC and i was interested in using x264 after the good impression its made on me archiving my dvds, but no matter what settings i disable i cant get it to encode realtime in 704x576, xvid manages this fine.
Is there any way of making x264 encode realtime without making it look like a low bitrate cinepak encode?
Neo Neko
2nd April 2005, 04:22
You are going to have to turn off all the advanced stuff and that may still not be enough. Almost no reffs. No Bframes. Very little ME. And even then it may not be enough.
akupenguin
2nd April 2005, 05:20
Actually, at least in some situations (not sure about fastest settings), 1 B-frame (non-adaptive) can help speed. (Though in very high motion scenes, non-adaptive B are both lower quality and slower than no B, so to really make that work I'd have to add a fast adaption algo.)
To explain why this is so: B-frames increase the number of skipped macroblocks (which don't need motion estimation at all), and B-frames aren't used as references so I don't have to calculate the half-pel motion planes for them, nor run deblocking.
Panna-master
4th June 2006, 18:29
Sorry 2 bump this thread up..
but I use a other way to cap straight to x264..
I use the FFDShow Encoder..
if you want I can make some screens..
btw can someone please make some screens of the above options cuz I have some troubles with it..
jaliljoon
22nd December 2008, 07:18
hi.
i am jalil i want ask you how can i encode yuv4.2.2 frame to h264 i have x264 encoder and i do not know how i can capture real time from capture cart. thank you for your attention. please send to my mail : jaliltoosi@gmail.com
tanks.
LoRd_MuldeR
22nd December 2008, 13:34
What capture software do you use? If you use VirtualDub or DScaler, you'll need to get the VfW version of x264 ...
Schrade
24th December 2008, 18:10
Wow, this is an old thread.
Does anyone have some current x264 settings recommended for realtime encoding? I'm sure things have been optimized quite a bit more since this was first posted :)
(These would probably be used in ffmpeg or VLC by the way)
Dark Shikari
24th December 2008, 18:18
Wow, this is an old thread.
Does anyone have some current x264 settings recommended for realtime encoding? I'm sure things have been optimized quite a bit more since this was first posted :)
(These would probably be used in ffmpeg or VLC by the way)Start slow and speed it up until it works ;)
tre31
25th December 2008, 10:09
I'm also interested in this topic for dvb streaming, however if anyone has any tips, cmdlines (or more too the point - x264 settings), ideas, etc I think it would be good too share. I've tried using vlc on a q6600, however its hard too find the balance between quality and speed without knowing exactly what works fast, what is slow, and what you should use too retain at least SD quality.
I think many others out there would like too give this a go too .. as I think it is possible on a quad machine using multiple threads.
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