The hardware decoder is limited to 2 instances at a time.This is usually because Composition Time Offsets are not properly set up. frames are out of order (we have seen that with some files uploaded to YouTube). You might notice that some videos will have ‘jumpy’ frames, i.e. The hardware decoder can not handle some of these cases. The software decoder in Adobe Flash Player is more forgiving when it comes to improperly encoded video files, it works around many issues.Playing video has a fixed baseline cost in the GPU for instance which is not the case when you decode on a CPU. ![]() This is something you can only decide on based on the exact type of hardware combination and the content you are trying to play. Remember that using the GPU for video decoding does not always result in overall power savings. These choices are picked by Apple and balance power usage of the CPU vs. On NVidia GeForce 320M and GeForce GT 330M the threshold can be a bit higher. Resolutions smaller than 480 * 320 pixels are not accelerated on NVIDIA GeForce 9400M based Macs.Specifically YouTube does sometimes provide a resolution of 864 * 480 pixels for their 480p content which forces a software fallback. There are limitations right now for this beta: iMacs which shipped after the first quarter of 2009.MacBook Pros shipped after October 14th, 2008. ![]() Mac Minis shipped after March 3rd, 2009.MacBooks shipped after January 21st, 2009. ![]() The types of Mac hardware supported right now: To use the new version of Flash Player, a.k.a Gala requires one of the following graphics card hardware: NVIDIA GeForce 9400M, GeForce 320M, the or GeForce GT 330M. Hardware video decoding allows Flash Player to offload H.264 video decoding tasks from the CPU to deliver smooth, high quality video with minimal overhead, improving video playback performance, reducing system resource utilization, and extending battery life. According to Mac Rumors, Adobe has released a preview release of the 10.1 Flash Player for Mac OS X that supports H.264 video hardware decoding on Mac OS X 10.6.3. Adobe wants you to see what Adobe Flash Player 10.1 looks like on your Mac.
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