Forum Archive Home -> Newbie / General discussions -> How to tell active codec?
How to tell active codec? | ||
| The111 posted 2009 Oct 31 21:21 | ||
| I have installed both the K-lite Mega Codec pack and also the CoreAVC codec, in that order.
I am playing back .MTS AVCHD footage from my CX100 camera on a top-of-the-line i7 rig, and it it pretty slow when skipping around in the timeline (WMP 12) to different parts of the video. How do I know which codec is being used? I first had only K-lite installed, and it wasn't performing well enough, so I added CoreAVC (since I had heard it would be better), but it performs exactly the same. I have CoreAVC set as "preferred codec"... but I also have it set to show system tray icon and it never does... which makes me wonder if it's actually active. Thanks! | ||
| minidv2dvd posted 2009 Oct 31 22:11 | ||
| you could try gspot. load the file. down at the bottom click on ms av 1.
codec packs are notoriously bad. no one here would recommend anything but installing only the codecs you need one by one. 2009-10-31_230853.bmp | ||
| jagabo posted 2009 Oct 31 22:19 | ||
| Then after creating the graph you can right click on the individual filters and see their property sheet or other details. | ||
| The111 posted 2009 Nov 02 04:00 | ||
Thanks. Sorry for the slow reply. So, I tried this out... for a .m2t file, it only lists audio decoder... so what is it using for video decoder? for a .MTS file, it lists (A) Microsoft DTV-DVD Video Decoder (B) DirectVobSub (C) Video Renderer So does that mean it's not even using CoreAVC for the .MTS? And this whole "filter chain" concept... does this mean filters stack rather than replacing each other? | ||
| jagabo posted 2009 Nov 02 06:19 | ||
Try using GraphEdit or GraphStudio to build a filter graph. Just drag your video file onto the program window. It will show the filter graph:
You can right click on any filter to get its properties. A graph like this is build by DirectShow every time you play a video. It examines all the installed filters (you typically have dozens, even hundreds) to figure out which ones can handle each of the jobs. If there are multiple filters that can perform the same job, say decode h.264 video, it takes the one with the highest merit (priority). You can adjust filter merits with a filter editor like Radlight Filter Manager, Filmerit, etc. GSpot also has the ability to change filter merits via System -> List Codecs... The same video rendered in GSpot:  |
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