Last time I tried to get some MKV movie files playing with subtitles on an AsRock ION 330HT Nettop PC if failed. I lost the hardware acceleration and the video playback became choppy to say the least, mainly because the CPU was ramped up to 80-90% usage.
With subtitles turned off and using the default Microsoft codec for H.264 the CPU usage is about 10-15% and video playback is nice and smooth.
So I forgot about this issue and put it on the back burner, then I saw a post on the Green Button recently that sparked my interest again regarding using FFDShow and the newish support for DXVA.
I installed the latest Shark Codec Pack version 2.4.8 and had a look at the new settings, on the H.264 tab there is now an option: Use FFDShow DXVA codec. I turned this on.
![Shark-DXVA1[1]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOJ-zNCo2Mb3phT3Q1BwH0y1VkkzWgPZ6E31TQjh5hmXMt5WtwN70E3NkXKgY2p2GTXvM6EBsXIfDyztkFM8EiJFcjfo79BnLiJyVW4oa8hc2_6xoiEaJ4UqVxm_Aub3vG2ZtcMG1iO5I/s1600-h/Shark-DXVA1%5B1%5D%5B3%5D.jpg "Shark-DXVA1[1]")
On the Config tab, the regular Subtitle Control options didn’t seem to take any affect. For example if I selected No Subtitles the subtitles would still be displayed. Instead click the FFDShow DVXA button.
![Shark-DXVA2[1]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzmlzEgS3G0P7bONnUykXCHTAF9EW6QsYmAITSpUpykJVH-gVPb6q03fJAnNvot9QrKyecPwnDLPEiiAw6N5QP4rlQZMYXNukmtuXcRp1twKZhf-GdBDe86aIfv5Dh7pMt82rwQkOqQlk/s1600-h/Shark-DXVA2%5B1%5D%5B3%5D.jpg "Shark-DXVA2[1]")
Here is the control check box for turning subtitles on and off and also other settings for text and font.
![Shark-DXVA3[1]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHfZEDR0f7HYrtonukeNyX7sh3puUAgc7zrv1Gnaz7_bRuWc97SUYT5hoHCHiGoxdxinic-4_xu_8eYOFtHevWYfs8G9wYysfDRUKJa8fGM-ewNc3VvkStVgxYG4MP_qQ7uFH4lFutO-Q/s1600-h/Shark-DXVA3%5B1%5D%5B3%5D.jpg "Shark-DXVA3[1]")
I played a few MKV movies and the subtitles were displayed and the CPU usage was about 30-40% This is higher than with no subtitles obviously but not as high as 80-90% as I was seeing before, when I last tried to play MKVs with subtitles on the AsRock Nettop! At 30-40% CPU usage the video playback is still smooth.
One of the movies I played had an external .srt file for the subtitles.
Another movie had no .srt file present at all, but I was still seeing subtitles. This threw me for a few seconds until I just assumed that there must be some embedded subtitles in this particular MKV file.
A closer look using MediaInfo revealed that an English text stream was indeed present within the file.
![Shark-DXVA4[1]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaFiI5sJJSvmFbSJ-RWO8qDQ6sIs9crZL0wuRAk20PcCma4IEO70BPlOjNZdaNjXBYBy2_bb5qtkWC9hLnoqLD4sMdVtdKwPkMfYD2FIy2FQz4VK0_bFSgX9I3fBv5VEa9k5BE4zF7Knc/s1600-h/Shark-DXVA4%5B1%5D%5B7%5D.jpg "Shark-DXVA4[1]")
Now if only I could turn subtitles on and off from within Media Center any suggestions other than the Media Control plug-in??
2 comments:
Hey thanks for the tip. To cycle audio and subtitles in a movie, I use MCE Remote Plus v1.3. It's free too :)
Hi
I've heard of MCE Remote Plus before but I thought it didn't work on Windows 7 or there was some problem with it?
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