Dr. Zhivago Posted October 5, 2011 Report Share Posted October 5, 2011 As I understand it, Watchout version 4.2 and above is using a MainConcept MPEG4 decoder which is supposed to use multi-threading to decode H.264 encoded videos. Using the AMD System Monitor, I can see that this is not the case in Watchout 5 on some systems I recently built. When playing back certain, large videos with a .mov extension and an H.264 codec, they do not play back smoothly. I can see in the AMD System Monitor, that only 1 Core of the 6 available was doing any real work. It also wasn't pegged at max usage for that core. The same videos rendered using H.264 with .mp4 do play back smoothly. Same frame rate, bit rate, frame size, etc. as the .mov file that does not play properly. Any ideas? System Specs: Gigabyte GA-990XA-UD3 Motherboard AMD Phenom II X6 1100T @3.3GHz - 6 Cores 3.7GHz Turbo Boost 8GB DDR3-1600 Dual Channel RAM AMD HD6870 1GB Video Card w/ 6 Output Capability 2x WD Caviar Black 500GB Lite-On DVDRW Cooler Master Sileo Case w/ 500W PSU Windows 7 64Bit w/ SP1 and all updates, Latest Drivers, etc. Watchout 5 Quicktime 7.7 These are stable boxes that don't have any issues otherwise. It's not a show stopper as there are versions of the videos which do play back properly, I just found it odd that the H.264 Decoder isn't using Multi-Threading. Thanks for reading. Quote Link to comment Share on other sites More sharing options...
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