8-way threading for WMV in Win 7

kaiservon · Messages: 2,314 Registration: 10.14.2001

Is that same dll used to transcode videos in the shell?

HTownM3 · Messages: 72 Registration: 10.21.2002

well actually I first thought this was MT decoding....I could use some MT WMV decoding on XP :o then I read your blog, and saw that it was exclusively for encoding apparently..

SpeedKills · Messages: 15 Registration: 08.13.2003

Is 8 a hardcoded limit (similar to x264's) or is it for the reasons which you outlined in the blog? No hope for anything above 8? Also, I hate to ask here but whats the word on VC-1 in m2ts and TrueHD/DTS variants files not playing in WMP in Windows 7? ... or no seeking/length for H.264/MPEG-2 in m2ts files?

StealthM2O · Messages: 501 Registration: 12.02.2002

I must admit that I never quite understand the upper limits that some software developers (MS in this case) impose on the number of parallel threads available to applications. Well-written multithreaded software should be able to make use of all available cores if the algorithm supports it when in a parallel part of the code. That Vista/XP out-of-the-box support >8 cores makes it rather odd that WMP11 only goes up to 4. DV, for example, can be decoded/encoded with 128 parallel threads. The MT code I have written scales appropriately to the number of available cores and uses the concepts taught by MS in their MSDN documentation (!)