CPU related settings.
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Settings specific to the CPU. These are set according to the system's CPU
-[Environmental Settings]
- CPU Settings
- One can select functions specific to their CPU in order to increase performance.
Functional Unit Supporting CPUs MMX Earlier Pentium class, and Pentium-IIs and better CPUs have this instruction class. MMX-2 Pentium III and Athlon support this instruction class. SSE Pentium III and AthlonMP/XP support this. It improves streaming. SSE-2 More streaming instruction found on newer CPUs (Pentium 4). 3D Now! AMD processors support this. It's a mixture of SSE and MMX-like instructions. Multi-threading One should enable multithreading on a multiple CPU system. Check the box to enable multi-threading.
Systems with multiple CPUs need this setting enabled if one desires to use all of the available processors. One may not always want TMPGEnc to use multiple processors though.
TMPGEnc checks for multiple processors on start-up. This is enabled by default on multiprocessor systems.
Multi-thread Settings- The settings for the threads if "multi-thread" is enabled. These only affect the system if the "Multi-Thread" checkbox is enabled.
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Option Result Enable Pipeline Use multiple CPUs in MPEG processing. This uses more memory because extra data space is needed, but it's faster. This also may cause a Preview frame to be displayed incorrectly, which is okay. Enable Pipeline for motion search. Use multiple CPUs for motion searching. Pre-fetch Video Synchronously read in the video data so that data is always available to the process when it needs it. This minimizes disk access.
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On Windows2000 and WindowsXP, this can improve performance.
- Cache Setting
- Specifies cache setting. The following parameters can be changed.
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Item Content Saves analyzing result of
multi pass VBR to cache.At multipass VBR(including 2 pass VBR), saves analyzing result of 1st pass to cache, then the encoding process would be boosted by using the result at 2nd (or later) pass(es).
You can set maximum size of cache to prevent TMPGEnc from makeing unexpected large cache file.
Required HDD space, for example, at 720x480, 29.97fps interlaced movie is approximately 5.3 GB / hour at most.
"OK" Button- Close the window and save the new settings.
"Cancel" Button- Close the window and discard any changes.