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Thread: Basic Avidemux question: Which output format to use?

  1. #1

    Default Basic Avidemux question: Which output format to use?

    Sorry for this complete newbie question, but I'm flooded with online information and am looking for some concise advice ...

    For all of you who are familiar with Avidemux:

    The program offers an abundance of video output formats (MPEG-2, MPEG-4.AVC, MPEG-4.ASP (lavc), MPEG-4 (xvid), H.263). Which format would you recommend for storing home videos, with regard to (a) being able to view them easily on different PC platforms, and to (b) being able to view them still in n > 5 years from now?

    Cheers,

    homoludens

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    Default Re: Basic Avidemux question: Which output format to use?

    Quote Originally Posted by homoludens1000 View Post
    with regard to (a) being able to view them easily on different PC platforms, and to (b) being able to view them still in n > 5 years from now?
    Older PCs will have problems with some video formats. You need to advise:
    • specifications of older PCs ?
    • what is the original resolution and video bit rate of these videos ?

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    Default Re: Basic Avidemux question: Which output format to use?

    Quote Originally Posted by homoludens1000 View Post
    Sorry for this complete newbie question, but I'm flooded with online information and am looking for some concise advice ...

    For all of you who are familiar with Avidemux:

    The program offers an abundance of video output formats (MPEG-2, MPEG-4.AVC, MPEG-4.ASP (lavc), MPEG-4 (xvid), H.263). Which format would you recommend for storing home videos, with regard to (a) being able to view them easily on different PC platforms, and to (b) being able to view them still in n > 5 years from now?

    Cheers,

    homoludens
    Choose: MPEG - XVID
    2Pass at least 1000 bit rate

    Leave audio as Copy

    Format: AVI

    =============================

    You might want to consider ffmpeg from the command line. It's super quick.

    Eg: say you have a flash video file

    Code:
    ffmpeg -i infile.flv -vcodec copy -acodec copy -y outfile.avi
    Leap 15.1_KDE
    My Articles Was I any help? If yes: Click the star below

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    Default Re: Basic Avidemux question: Which output format to use?

    Go for H.264 video. Although it can take lots of time to encode it (depending on settings of course), it offers not only superior quality to MPEG4 ASP (Xvid, DivX, 3ivX, etc) but also offers much better compression and is a "modern" video format currently taking over the world

    Xvid & co won't be obsolete in the sense that you won't be able to play it in n > 5 years (you can still play MPEG1 video, can't you? And MPEG1 is way older than Xvid/MPEG4 ASP) but is a poor choice when it comes to quality and compression. Certainly, it has its positives too, like less CPU strain for decoding (so it'll be better on very outdated hardware) and currently a wider stand-alone devices support, though H264 is gaining on that quickly.

    Consider and outweigh the pros and cons above, and choose the one better suited to your needs. If you go for H264 video, never stuff it in an AVI and leave it at that, as no HW player will pay it and AVI is a container that isn't optimal for such video due to its nature (it can be used as intermediate container though)... so either go for MP4 or MKV container

  5. #5

    Default Re: Basic Avidemux question: Which output format to use?

    Thanks for all the posts! Gee, I had to read up quite a bit on containers, codecs, etc., but it's been fun and I think I'm a bit wiser now on the whole issue.

    Cheers!

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    Default Re: Basic Avidemux question: Which output format to use?

    I agree with Microchip re: H.264. My main concern there is a video with a large resolution and high bit rate encoding in H.264 codec format won't play on an old PC. One needs either a moderately new PC, or an older PC with something like a nVidia card with vdpau support.

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    Default Re: Basic Avidemux question: Which output format to use?

    I'm pretty sure that an old Athlon Tbird @ 1 GHz can handle SD H264 video, even ones encoded with CABAC turned on (CABAC requires a good amount of decoding processing power), but beyond that, with stuff like 720p or 1080p, it'll just choke and the player will probably start dropping frames hard, and A/V sync could get lost too

  8. #8

    Default Re: Basic Avidemux question: Which output format to use?

    Guys, thanks again for the comments.

    I've encoded a couple of videos now using H264/mp4, and the encoding time wasn't too bad, even on my 5-yr-old laptop. Decoding and playing is fine, too, and since any processors I'd be getting in the future should be faster than my current one, I think I'm set.

    The small file size is really impressive, given the quality of the pictures!

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    Default Re: Basic Avidemux question: Which output format to use?

    Quote Originally Posted by caf4926 View Post
    Leave audio as Copy
    Might be worth to check if it's originally encoded in something more widely supported, like mp3 or AAC. Last time I looked most standalone players only supported these two.

    I'm sorry to say I've a lot of ogm videos with dual ogg audio tracks that won't run nor seek smoothly with mplayer and xbmc media center - I have to remove one of the tracks or reencode to mp3 in an avi container.

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    Default Re: Basic Avidemux question: Which output format to use?

    Quote Originally Posted by microchip8 View Post
    I'm pretty sure that an old Athlon Tbird @ 1 GHz can handle SD H264 video, even ones encoded with CABAC turned on (CABAC requires a good amount of decoding processing power), but beyond that, with stuff like 720p or 1080p, it'll just choke and the player will probably start dropping frames hard, and A/V sync could get lost too
    I'm pretty impressed with what mplayer can do with my PCI (not PCI-e) nVidia 8400GS card, using vdpau, with even 720p or 1080p videos on my old Athlon-2800 with the command:
    Code:
    mplayer -vo vdpau -vc ffh264vdpau my-h264-video.avi
    If I try to play a 720p or 1080p without that command, the video chokes on that PC

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