What codecs do I really need

Discussion in 'Other video questions' started by janlafata, Jul 31, 2010.

  1. janlafata

    janlafata Regular member

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    I've got Windows 7 x64 and am about ready to install the K-Lite codec pack, but it's a little overwhelming with choices. What do I really need just to get by. I have some avi's that ate Xvid encoded and a few with ac3 and that's about it. I do already have DivX installed. Also when customizing the installation I've noticed that by default the ffdshow filters will be installed, like with XVid I have a choice between XviD 1.22 or ffdshow. Default is set at ffdshow. Would I just use that? Also, is it safe to just go ahead and install everything? SOme of those audio and video codecs I've never heard of.
     
  2. davexnet

    davexnet Active member

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    Jan,
    It would be simpler to install just FFDshow and forget the codec pack entirely.
    It's clean and simple and lives well with DIVX - and if you have problems with
    playing H264/mp4/mkv you can install the Haali splitter.

    The codec pack already has all this stuff, but installing these two individually keeps
    things simpler. In fact, you don't even really need Divx, unless you use it as an
    encoder (inside Virtualdub, for example)
    FFDshow quite capable of playing Divx/Xvid/AC3 by itself.

    Your choice.
     
    Last edited: Jul 31, 2010
  3. janlafata

    janlafata Regular member

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    Thanks,

    I think your right. I had heard before, that ffdsho especially works well when combined with with TMPGEnc, which uses DirectShow filters. I went through it briefly but did not install it. I was hoping to get a little more input from you on what not to install, minus AC3 and XVid. There's just so much stuff there I've never heard of or I feel I'll ever need.

    Forgive the crudeness of doing this but I made screen shots of the default installation options and everything that is checked will go in unless I uncheck it. Could you give it a once-over and tell me what things, if at all I don't need checked. Or is it ok to just go ahead and install what it tells me too?

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    Thanks for your help, as Always
     
  4. davexnet

    davexnet Active member

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    Nothing wrong with that. Plenty of stuff in there that you'll never use,
    but it doesn't matter - it has such a small footprint, it's unobtrusive.
    That's why those in the "know" use FFDshow and haali and disregard the big codec packs.
     
  5. janlafata

    janlafata Regular member

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    Dave,

    I wanted to let you know about an issue I'm having with one of my AVI's. It's what started the whole issue about codecs. This avi that I've been trying to burn with TMPGEnc plays back fine on Windows. However once it's burned the audio is out of sync. The audio on it is AC3. Now I've had other AVI's with AC3 audio before and they came out fine but for some reason this one isn't. Could there be some copyright protection that's messing it up or what? I also noticed in GSpot that this AC3 was 6 channel. Could that have been the problem? Also on GSpot, under System I opened the "List Codecs and other filters" and there were a few references (See below) of AC3 not being present. Now is this referring to what's on my system or what's on the file? Would there be a way to change the audio to MP3?.

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  6. davexnet

    davexnet Active member

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    Jan, convert the audio to mp3.
    Use Avidemux. Open the file. Set the video to "copy" (on the left)
    Set the audio to mp3(lame).
    audio configure to set the required bitrate.
    audio Filter/mixer/stereo

    Save as a new AVI.

    FFDshow plays back ac3, but you may have to check the settings in FFDshow / audio config.
    I don't understand what you mean when you say your doing a burn in Tmpgenc.
    Tmpgenc is either and encoder or a DVD authoring package. What are you actually doing ?

    Is that the output of Gpot showing your directshow codecs? It's possible there are
    small errors-mismatches between the info in the Windows registry and the files on the HDD.


     
    Last edited: Aug 1, 2010
  7. janlafata

    janlafata Regular member

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    Well I resolved one thing...I found the same file encoded with mp3 audio, so I can now toss the old one. I think that first file was messed with cause it would not accept any tinkering with AVIdemux.

    Yes what I meant by TMPGEnc is the Authoring software. I've been trying to burn that file on a DVD, but as I mentioned, every time I check the playback on the finished disc the audio is off. Maybe now that I know that the file was probably messed with, that would explain why.

    I don't know if that's the output of Gspot or not, but I investigated it further and it is listing my drives and folders so it must be a representation of whats on my hard drive. Am I still ok then even if there are those " errors-mismatches between the info in the Windows registry and the files on the HDD"? I hope so cause I don't want to do any reformatting!

    I went into the ffdshow audio configuration but since I am not really proficient with that there's not much I can report back to you except by showing you the screen below.The two references there to AC3 both seem to be assigned to something, and you'll see in the image if you right-click them you get an option that I know nothing about. One is "Set all stable formats to libavcodec" and the other is "set all supported formats to XviD" Any help in this matter would be appreciated. Not seen in the image there is also an "ATRAC3 that is enabled and has the same right-click options.

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  8. davexnet

    davexnet Active member

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    Usually setting it to Libavcodec works.
    You can use a program to called Filmerit to examine the dshow registry/filters
    and report the errors to you.
     
  9. janlafata

    janlafata Regular member

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    Thanks I will try that. And just so you know...the file with the MP3 audio ended up out of sync too after I burned it with TMPGEnc...So I'm starting to think that this may just be one of those files that you come across every now and then. One that just, for one reason or another causes problems in your burning software. It may actually come out fine in some other burning program and just be a TMPGEnc thing too, and I have notified them of the issue. Still I don't thing TMPGEnc is damaged in any way. Once again, it just be one of those stubborn or weird files.

    Thanks for all your help with this.
     
  10. janlafata

    janlafata Regular member

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    Dave,

    Just wanted to get back to you one more time on this...I ran filmerit and it did find some errors. One AC3 error and the rest had no name. Like a newbie I just deleted everything, but when I rebooted it kinda messed some things up, like the playing back of my AVI's. I was not able to recover so I had to revert back to a backup image that I had.

    I then did run the program again and just deleted the AC3 reference, then ran ffdshow again and this time no errors came up for AC3, but is it ok to just leave the no names in there? I don't want to mess anything up again!
     
  11. davexnet

    davexnet Active member

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    I wouldn't touch then unless you know exactly what they are. They may be related to
    One of the packs you installed, or it may be native windows components.
    Leave it as is for now.
     

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