Skip navigation
Currently Being Moderated

mp4 size

Apr 8, 2012 10:00 PM

I have inserted a video mp4 file in Dreamweaver and uploaded it to my website.  The mp4 file is 79.3 MB, a little more than 14 minutes.  Dimensions are 900 x 506, Codecs:  H.264, AAC and total bit rate is 719.  When I go to my website and try to view the video it takes about a minute for it to appear.  I had developed the mp4 in After Effects.  What I need to know is how to reduce the size of the file and still retain the same dimensions and relative clarity of the file.  Right now I am considering presenting the video in 4 segments but really prefer to keep is as one file.

 

Appreciate any help

 
Replies
  • Currently Being Moderated
    Apr 9, 2012 5:47 AM   in reply to gweingourt

    Hi

     

    The first thing you should do is ask who your potential audience is and what download speeds they are likely to have.

     

    If they will have 10Mb+ download speed then you are probably O/K, but is they have 2Mb, (or less) then the video will have the 'buffering' logo displayed very often, for those that have less than 1Mb download speed they will probably not be able to view the video, (they will probably give up trying to view it).

     

    You could try compressing the video more, or even offer a lower quality version, (or a split it into 4-6 parts) of the video for those users.

     

    PZ

     
    |
    Mark as:
  • Currently Being Moderated
    Apr 9, 2012 8:04 AM   in reply to gweingourt

    I'd say the video bitrate is just fine.. 700kbps is very reasonable for this day and age. And you really wouldn't need to split the video if you could get it to progressive download (download the first few seconds of video, then start the display, the continue as the video download "progresses".

    Looks like your problem is that the file is not "progessively" downloading....that's why you have to wait a minute for the video to start to play.

    Many mp4 end up with their MOOV ATOM at the very end of the file rather than at the very beginning... meaning that the entire file must download before the browsers can display any of the video. The solution is to swap that index file from the very end of the file to the very beginning.

    http://renaun.com/blog/code/qtindexswapper/

    and

    http://www.youtube.com/watch?v=8c8oqNX4b3k

    Best wishes,

    Adninjastrator

     
    |
    Mark as:
  • Currently Being Moderated
    Apr 10, 2012 1:50 PM   in reply to gweingourt

    Look at the links I posted and Google "QTIndexSwapper" for more info.

    Best wishes,

    Adninjastrator

     
    |
    Mark as:
  • Currently Being Moderated
    Apr 10, 2012 5:17 PM   in reply to gweingourt

    Problem with QT mp4 MOOV ATOM are very common and there are several ways to accomplish the switch. QTIndexSwapper is just one. Create a copy of the video file and test... see if it works for you.

    If not, there are many other good examples of how to do it... just Google "QTIndexSwapper" or "mp4 moov atom" and check out some of the other links.

    By the description of your problem... this is almost certainly the issue.

    Best wishes,

    Adninjastrator

     
    |
    Mark as:
  • Currently Being Moderated
    Apr 11, 2012 3:52 PM   in reply to gweingourt

    Yes.

    Does the entire file have to download before the video starts to play? If so, it's still a MOOV ATOM problem.

    If no, it just downloads a small part of the file, then it starts to play, then there is some other problem.

    Answer this question first (downloads entire file first or not) and then we can move on.

    Adninjastrator

     
    |
    Mark as:
  • Currently Being Moderated
    Apr 11, 2012 6:38 PM   in reply to gweingourt

    OK, then this is just a MOOV ATOM problem.

    While you can Google more about it, here are a few results I've found:

    http://camstudio.org/forum/discussion/492/quicktime-pro-finalcut-pro-o r-imovie-settings-optimized-for-youtube/p1

    http://labs.insert-title.com/MP4_Moov_Atom_Application_article920.aspx

    http://code.google.com/p/moovrelocator/

    I can't recall the exact steps in using QuickTime or maybe it's QuickTimePro... but here is an excerpt from a post that seems to touch on what I recall:

    Some encoding software puts the atom to the end of the file - in this case, simply open the clip with Quicktime and safe it selfcontained into another file. QT automatically puts the atom to the beginning...

    So while this may seem a little frustrating... I'm 100% sure you are on the right track... it's a MOOV ATOM problem.

    Not sure why QTIndexSwapper didn't work... it's a highly recommended method. You might want to give it a second try.

    Best wishes,

    Adninjastrator

     
    |
    Mark as:
  • Currently Being Moderated
    Apr 12, 2012 1:10 PM   in reply to gweingourt

    By "controllers" do you mean "skin"?... or the outside look and controls of the video player?

    One of the great features of Flash was you could build your own. It's a little more complex now.

    How about one of these great players:

    http://www.longtailvideo.com/players/jw-flv-player/

    http://flowplayer.org/

    http://www.pickleplayer.com/

    Best wishes,

    Adninjastrator

     
    |
    Mark as:

More Like This

  • Retrieving data ...

Bookmarked By (0)

Answers + Points = Status

  • 10 points awarded for Correct Answers
  • 5 points awarded for Helpful Answers
  • 10,000+ points
  • 1,001-10,000 points
  • 501-1,000 points
  • 5-500 points