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  1. Member
    Join Date: Mar 2005
    Location: North Star State
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    Anyone have thoughts on the quality difference between flv and mp4 such as those on youtube?
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    beefer
    THE TRUTH IS OUT THERE!!!! ---FOX MULDER
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  2. Member
    Join Date: Aug 2009
    Location: Asia
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    no
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  3. Member SingSing's Avatar
    Join Date: Apr 2001
    Location: U.S.A.
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    Where is northstar state ?
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  4. actually, all new videos are encoded as h264 video + aac audio by video sites
    files are usually wrapped as mp4 or flv (or displayed -on the fly- as flv wrapped)

    So the wrapper has nothing to do with quality… the important part is their contents

    bye
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  5. Mod Neophyte Super Moderator redwudz's Avatar
    Join Date: Sep 2002
    Location: AZ, USA
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    Minnesota is the North Star state.

    Both those file formats are containers that can hold many different video and audio codecs. Quality comparison is difficult as you have to take that in account, along with the myriad of settings possible with each of those codecs.

    If your primary interest is in YouTube, you could start here: http://www.google.com/support/youtube/bin/answer.py?hl=en&answer=55744
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  6. Video Restorer lordsmurf's Avatar
    Join Date: Jun 2003
    Location: Want my advice? PM me.
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    FLV is a wrapper, generally has On2 VP6 inside.
    MP4 is a wrapper, usually has H.264 inside.

    On2 VP6 vs AVC H.264 is no contest -- H.264 wins.
    On2 VP7 and VP8 are good, supposedly, but I don't see a future for it. Too late.
    Google bought On2, finalized in Feb 2010.
    That's the only way I could see it making a comeback -- if Google used it on Youtube.
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  7. Member
    Join Date: Jan 2003
    Location: Soul sucking suburbia!
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    Originally Posted by lordsmurf View Post
    FLV is a wrapper, generally has On2 VP6 inside.
    MP4 is a wrapper, usually has H.264 inside.

    On2 VP6 vs AVC H.264 is no contest -- H.264 wins.
    On2 VP7 and VP8 are good, supposedly, but I don't see a future for it. Too late.
    Google bought On2, finalized in Feb 2010.
    That's the only way I could see it making a comeback -- if Google used it on Youtube.
    It may typically have it in, but as FLV is as flexible as AVI or MKV it can quite easily have MP4 inside and that's the way I've usually seen it employed with my own eyes - as a MPG4 container that comes with its own embedded player. Hence and therefore, no quality difference, if encoded at the same rate with an encoder of similar efficiency.
    -= She sez there's ants in the carpet, dirty little monsters! =-
    Back after a long time away, mainly because I now need to start making up vidcapped DVDRs for work and I haven't a clue where to start any more!
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  8. Video Restorer lordsmurf's Avatar
    Join Date: Jun 2003
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    You can't have MP4 inside an FLV, as MP4 is a container, too.
    You can rename MP4 to FLV, as that cheat works for a number of players.
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  9. Member
    Join Date: Mar 2005
    Location: North Star State
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    Originally Posted by SingSing View Post
    Where is northstar state ?
    Minnesota USA
    THE TRUTH IS OUT THERE!!!! ---FOX MULDER
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  10. Member
    Join Date: Mar 2005
    Location: North Star State
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    Originally Posted by redwudz View Post
    Minnesota is the North Star state.

    Both those file formats are containers that can hold many different video and audio codecs. Quality comparison is difficult as you have to take that in account, along with the myriad of settings possible with each of those codecs.

    If your primary interest is in YouTube, you could start here: http://www.google.com/support/youtube/bin/answer.py?hl=en&answer=55744
    TIP If you add '&fmt=18' to the end of the youtube url playing a video, the file is played back and down loaded as MP4 and the quality is close to HD
    THE TRUTH IS OUT THERE!!!! ---FOX MULDER
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  11. I usually use "&fmt=22" to access to 720p

    bye
    For DVD, iPad, HD, Western Digital, iMovie & FCPX? New: MovieConverter-Studio 2 is available! - Handle your camcorder's videos? in 60p too? do a slow-motion? MovieCam
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  12. Member
    Join Date: Jan 2003
    Location: Soul sucking suburbia!
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    Originally Posted by lordsmurf View Post
    You can't have MP4 inside an FLV, as MP4 is a container, too.
    You can rename MP4 to FLV, as that cheat works for a number of players.
    Agh! Fair enough. MP4 has merged with H264 to become one and the same in my mind.
    Which is dumb, because my phone accepts "MP4" files as an audio format for a start
    Just imagine i'd said H264 + AAC as the codec(s), and MP4 instead of/as well as AVI (and MOV, and MKV, and...)
    -= She sez there's ants in the carpet, dirty little monsters! =-
    Back after a long time away, mainly because I now need to start making up vidcapped DVDRs for work and I haven't a clue where to start any more!
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