ffdshow version (1 Viewer)

A

Anonymous

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For the development of the ffdshow installation wizard, which version should we be installing? Standard, SSE or SSE2? Or should it be user selectable?
 

gabbe

Portal Pro
August 8, 2004
58
1
Sweden
Hi, it depends on what cpu You have.
P4 (not the oldest?) and AMD64 can use SSE2
PIII, (oldest P4??) and AMD XP can use SSE
Other should use std fddshow.

Best is to use a sse / sse2 detecting algoritm and choose there after. But I think the user should be able to override the choise.
 

MrMario64

Retired Team Member
  • Premium Supporter
  • April 22, 2004
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    why not make it manually selectable with default as standard.
    And explain in the installer what the other choices r for?

    ofcourse, autodetect would be fine to.
     

    gabbe

    Portal Pro
    August 8, 2004
    58
    1
    Sweden
    From this link http://www.codeproject.com/cpp/sseintro.asp?select=568493&df=100&forumid=16168&exp=0
    Detection of SSE Support
    SSE instructions may be used if they are supported by the processor. The Visual C++ CPUID sample [4] shows how to detect support of the SSE, MMX and other processor features. It is done using the cpuid Assembly command. See details in this sample and in the Intel Software manuals [1].
    SSETest Demo Project
    http://www.codeproject.com/cpp/sseintro.asp?select=568493&df=100&forumid=16168&exp=0

    And here is somethin about cpuid

    http://www.paradicesoftware.com/specs/cpuid/index.htm

    But use only any detection to present a choise for the user. He must be able to override it with an other ffdshow version or even cancel an installation of it.
     
    A

    Anonymous

    Guest
    Hi,

    Found a prefect sample to use. (c++)
    http://download.microsoft.com/downl...99-3e005872c1be/debugging_crt_debug_cpuid.exe

    C:\temp\Debug>cpuid.exe
    v_name: GenuineIntel
    model: Unknown
    family: 6
    model: 13
    stepping: 6
    feature: 00000007
    yes _CPU_FEATURE_MMX
    yes _CPU_FEATURE_SSE
    yes _CPU_FEATURE_SSE2
    no _CPU_FEATURE_3DNOW
    os_support: 00000007
    yes _CPU_FEATURE_MMX
    yes _CPU_FEATURE_SSE
    yes _CPU_FEATURE_SSE2
    no _CPU_FEATURE_3DNOW
    checks: 0000000f


    Can some one convert this to dll or COM?

    /ac
     

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