AVC/H.264 - The CoreAVC decoder updated

Discussion in 'Amateur Video Production' started by Ken Maltby, Sep 1, 2007.

  1. Ken Maltby

    Ken Maltby Guest

    If it is AVC that you are interested in, consider this:


    $8 for the Standard edition and $15 for the pro version.

    CoreCodec has been a leader in H264 decoding right
    from the beginning. They just updated a few days ago,
    as well. The update and new package includes the
    latest version of the Haali Media Splitter and the
    Renderer ( that alone is worth the $15). The pro
    version also adds a number of very useful DirectShow

    The Haali Splitter will likely improve playback of a
    number of other video formats on your system, also.
    It is especially good working with Media Player Classic.

    Ken Maltby, Sep 1, 2007
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  2. Ken Maltby

    Smarty Guest

    Thanks Ken for posting this. Where / how does "the Renderer" become
    available? Is it a stand-alone application, an installed codec accessible
    externally, or what?

    What has been your experience with the actual performance?


    Smarty, Sep 1, 2007
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  3. Ken Maltby

    Ken Maltby Guest

    Installing the Haali Splitter will register the Renderer filter
    as well. When you play a video file in Media Player Classic
    (MPC) you can right click and mouseover "Filters" a list will
    pop-up with "Haali's Video Renderer" on it. Clicking on that
    will take you to the filter's property page. There are several
    settings available to effect the rendering.

    The splitter's property page is reached through the file
    properties ( at the bottom of the pop-up filters list). It
    includes a running graph of the actual video and audio
    bitrates, and there are a number of settings available under
    the "Options" tab.

    MPC makes it easy to adjust the filters for individualized
    playback. If you were playing an AVC file and had the
    CoreAVC filter installed you could adjust things in that as
    well. One filter that I've always kept installed is the
    AC3Filter (it works with most audio formats, not just AC3).

    There are other DirectShow based players like the ZoomPlayer,
    and you can also work with the DS filters using GraphEdit.

    The performance of all these DS filters has been great, the
    update provides some additional tweaking controls and seems
    to be even a little better than before, ( but that could be just
    expectation, it's still great in any case.) The default settings
    work just fine and most people will never even know they are
    there, but once you start working with DS Filters you will be
    surprised how much control you can have over the processes.

    Ken Maltby, Sep 1, 2007
  4. Ken Maltby

    Smarty Guest

    Thanks once again Ken. I am checking them out....

    Smarty, Sep 6, 2007
  5. Ken Maltby

    Ken Maltby Guest

    One thing to keep in mind is that many of the filter
    settings are persistent, and a number of them aren't.
    For instance if you change the audio level to play a
    video using the property page of the AC3Filter in
    Media Player Classic; it will remain changed, unless
    you reset it. So your capture program or editor
    could be effected if you forgot to return things to
    normal in the filter. This is both good and bad, it is
    good in that you can set such filters for programs
    that don't offer you the option, by doing it ahead of
    time. It can be bad if you are too forgetful, and
    leave filters set in an unexpected manner.

    Ken Maltby, Sep 6, 2007
  6. Ken Maltby

    Smarty Guest

    Thanks Ken. Any idea what the difference is between "software deinterlacing"
    and DirectShow deinterlacing? These options show up in the renderer dialog
    box, and I am assuming that the "software deinterlacing" may refer to the
    replacement of DirectShow with CoreAVC's algorithm?

    Smarty, Sep 8, 2007
  7. Ken Maltby

    Ken Maltby Guest

    That would make sense, but I can't find anywhere
    that spells it out. My guess is that the best approach
    would be to try each one, under all the circumstances
    you may expect to use the filter.

    If and where to deinterlace can be a complex decision,
    there can be a number of options in a long chain of
    programs and hardware from source to final display.

    I usually make my video progressive, when transcoding
    from MPEG to AVC/H.264. So, the CoreAVC Decode
    filter is seeing progressive material and won't be using the
    deinterlacing options, anyway.

    Ken Maltby, Sep 8, 2007
  8. Ken Maltby

    Smarty Guest

    I could also not find any place which spelled it out but was playing with
    1080i video captured in mpeg2 from an HDV camcorder and looked at the
    progressive scan rendering in AVC / h.264 with some effort to discern the
    difference between the two choices. I don't see visually any differences at

    Other than a minor confusion of this type, the CoreAVC codec seems very
    solid, performs very well, and is a very low priced item. Thanks for
    suggesting it Ken.

    Smarty, Sep 8, 2007
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