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gspot results, need help

Discussion in 'Video playback problems' started by sgull, Jul 21, 2008.

  1. davexnet

    davexnet Active member

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    What is the format of the extracted audio ?
    Would you care to post it a filehosting site, (savefile.com is OK)
    so I can take a look at it?
     
  2. sgull

    sgull Member

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  3. davexnet

    davexnet Active member

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    Hello - I thought you were just going to post just the AUDIO
    (as extracted by FLV Extract) but you sent the whole FLV.

    That's Ok, I'll take a look and get back to you.
     
  4. sgull

    sgull Member

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    File: airplane woodstock.flv
    Estimated True Frame Rate: 25 (25/1)
    Average Frame Rate: 24.9962098241358 (164875/6596)

    The above info is the only audio info from the file that I could get to "extract" out of it using the the FLV Extract program. Perhaps I'm not using it (the program) correctly?
     
  5. davexnet

    davexnet Active member

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    Sounds as if you were using it wrong.
    Open the program and it will show a small window with three
    check boxes. Video, timecodes and audio.
    Select "audio" and drag the flv file on to this window.
    It will create the audio (in this case mp3 as most FLV's are)
    in the same folder as the original FLV.

    Here's the audio coverted. (mp2 format)
    http://www.savefile.com/files/1689662

    Merge it with your video and create the DVD. Shame the quality
    of the video is a poor, looks like a nice clip.
     
  6. davexnet

    davexnet Active member

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  7. sgull

    sgull Member

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    I was apparently using the FVL Extract program correctly, I just didn't realize that it had been putting the extractions into the same folder as the FLV file. It did create the audio as an mp3 file, but created the video as an .avi file. I attempted to merge the converted audio (mp2) file with the (extracted) .avi file with Tmpgenc, but it would not accept the .avi, giving an error message "can not open or unsupported." Please advise/comment.
    So I used DVD Flix, as suggested. Worked okay but for some reason the resulting clip on the DVD had the first 30-45 seconds or so cut off.
     
  8. davexnet

    davexnet Active member

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    sgull - if Tmpgenc cannot open it,
    more than likely, there is no FLV decoder installed
    in your system. Something like FFDshow will probably do it,
    in fact that's what I have, but you're getting further away from
    your goal and perhaps complicating it.

    Do you have your mpg output, the one that you opened this whole
    post with ? You should be able to use it and merge it with the mp2 I
    sent you.
    Open Tmpgenc 2.5/ file/ tools /de-multiplex. Open your MPG and
    double-click on video_stream. Save the file. (m2v)

    Now merge in the audio (mp2) File/tools/simple multiplex
    enter the video (m2v) and the mp2 (audio) select "run".
    Test out the new mpg and let me know if it works.

    No idea what happened with DVD flick - I tried and got the whole
    thing. Got a file of about 100MB
     
  9. sgull

    sgull Member

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    Davexnet - The new mpg created by merging the mv2 and mp2 works. I duplicated the process with another flv file and it works too. I'm not sure if it's my imagination or if there's actually slightly higher final video output quality of the mpg's created in this manner (from flv files) compared to the mpg's which I was creating previously at "VCD" format conversion setting with my other converter program (Zillatube). The issue with my other converter program was that if I chose "DVD" format I would get no audio, it would only work if I converted to VCD format. One thing for sure is that the MB size of the final output file is considerably higher using the new process. Sure seems like a lot of hooha to go through with the new process. The process is as follows:
    1. Grab the flv file from YouTube using the program Zillatube.
    2. Convert the file using Zillatube to "DVD" format.
    3. Use FLV Extract to extract the audio and video.
    4. Demultiplex the converted Zillatube file using Tmpgenc to so that the video can then be converted to mv2.
    5. Use Tmpgenc to convert the audio to mp2.
    6. Multiplex the converted audio and video with Tmpgenc for a final mpg output that plays as it should.

    I thought perhaps if I installed ffdshow as you mentioned that maybe then if I selected to convert the flv's to "DVD" format using Zillatube that it might resolve the no audio problem and I wouldn't have to go through all the extracting and reconversion process with the other two programs. So I installed ffdshow (with all default installation settings), but there was still no change. Comments?

    For now I'll just keep doing it this long drawn-out way to get individual playable mpg files converted from flv format, and burn them to DVD using WMP11 and/or Windows Movie Maker. I might mess around with the DVD Flick program and see if I can learn it.
    Thanks for any further input you may have.
     
    Last edited: Jul 27, 2008
  10. davexnet

    davexnet Active member

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    sgull - the free version of Tmpgenc.. I think it comes with a 2-week
    trial of the dvd (mpeg 2) encoding. Perhaps you can experiment
    with it.

    For ease of use, DVDFlick is the way to go. I did one myself this
    morning, two FLV's (one per Title). I didn't change anything in
    "edit Title". For project settings, I changed video tab/target bitrate/ to 3 Mbits/s advanced button - half horizontal
    resolution (optional - I think it's better for low res sources
    like these). Create DVD.

    For Tmpgenc to do the encoding, it's more work, but the quality is
    better. Problem is, it may not open the FLV directly, but you can
    open the FLV in Virtualdub 1.8.1 and frameserve it to Tmpgenc.
    Works well. If you want to test whether your FFDSHOW/FLV
    decoder is working, Use FLV Extract as before to create the avi and
    mp3. Drop the avi on virtualdub (or open it) does it work?
    If it doesn't - start button/programs/FFDSHOW/VFW config/ select
    "decoder" tab (top left) then about half way down, you'll see
    FLV1 and to the right of that it may say disabled. If it does,
    click on "disabled" and hit the little arrow that appears, and select
    libavcodec. The avi should open in Virtualdub now. Let me know if
    you want to try this. If nothing else, it's a good learning exercise!
     
  11. sgull

    sgull Member

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    Working with the Tmpgenc program, I am getting a message now when I try to open the resulting mp2 audio (after demultiplexing with Tmpgenc) into the Audio Input box in the MPEG Tools section within the Simple Multiplex tab. The resulting video, the mv2, is accepted okay when I put it in the Video Input box, but as soon as I try to put the mp2 in the audio box, a message pops up which says "Illegal MPEG Audio Stream." Any ideas what might be going on, what may be the problem now?
     
  12. davexnet

    davexnet Active member

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    The only thing I can think of is that sometimes, Tmpgenc has a problem
    doing the mp3 > mp2 conversion. The reason given for this, is
    that it has to do with reading the compressed file(mp3). Especially
    if it's variable bitrate.

    A simple solution is to download and install an audio editor,perhaps Goldwave (free trial) Open the mp3 in Goldwave, select effect/resample
    set 48000 and do it. File/save as ... select "save as type" - wave
    Save the Wave, and open the Wave in tmpgenc to create the mp2.
    Select Tmpgenc settings/audio tab/sample freq. 48000, ch. mode-stereo,
    bitrate 224.
    Use that mp2 to multiplex with the video (m2v)
     
  13. sgull

    sgull Member

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    Maybe instead of the Goldwave editor I could download and install the Audacity program you mentioned earlier, for the purpose of getting the mp3 converted to wave and then subsequently to mp2 with Tmpgenc (because Audacity is completely free, not just a free trial like Goldwave). With Audacity would I still have to do the resampling step as you described I would have to do with Goldwave? Also, do you know of another simpler basic editor or conversion program with which I could do the mp3 to wave or better yet a mp3 to mp2 conversion, a program with not loaded up with so many features and function I'm sure I don't need at this point?

    Can't understand why Tmpgenc decided to give me trouble doing the mp3 to mp2 conversion, it didn't at first.
     
  14. davexnet

    davexnet Active member

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    I agree, it can be frustrating, but those of us who have been doing
    this for a while have got used to these quirks. Audacity is also good. Somewhere in there you'll find the resample.

    Strictly speaking, it's not necessary to to it - Tmpgenc will do it
    as long as you give the proper settings in the audio tab. The only
    reason for doing it in the editor, is that you might get a slight
    sonic improvement on the final result.

    Another method of getting the Wave ? Install the old mp3 player,
    Winamp 2. (oldversion.com should have it).
    Open Winamp, and press ctrl-p. Select the output plugin, and hilight disk writer plugin. Select configure and set the output directory,
    and check the "convert to" and set 48000, 16 bit Stereo PCM.

    Now "play" the mp3. You wont hear anything, but it will convert the
    file and put it in the folder you specified. (Ctrl-p again to restore
    the output plugin to one that actually plays - eg. waveout)
    This might be better that Audacity. Give it a try...
     
    Last edited: Jul 28, 2008
  15. sgull

    sgull Member

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    As you mentioned, for ease of use, DVDFlick seems to be a good program to get my FLV's into playable format and burned to DVD. I gave it a try today and got it to work okay except when I add a menu.
    When I add a menu, when I play the burned DVD the menu page will show but seems to be non-functional. That is, the menu page appears with the title and the play/resume and the select title options showing, but when I click on either the play/resume or select title options nothing happens. If I burn the DVD without adding a menu there seems to be no problem at all with playback, but of course there is no menu and I at least want a menu. Why would that be?
    Also, DVDFlick seems to lack such features as built-in special effect type transitions that can be added between video clips, such as are available when using Windows Movie Maker.
    Thanks again. Further comments welcome.
     
  16. davexnet

    davexnet Active member

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    sgull, DVD Flick is a work in progress, it's fairly new,
    and it's at a Beta stage. It does quite well (imho) for what it does,
    but it's not full featured. I did get a menu to work, at the previous
    beta - perhaps it's worth joining their forums an inquiring about it.

    I'm not aware of any free products that do these transitions - except
    WMM. Can you work it into your flow ? Does it even work with mpeg-2 ?
     

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