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using MPEG4 (XVID codec)

Feb 15, 2013 11:11 AM

I've been supplied video files, for an upcoming DVD, with the following specs:

 

It seems to be appearing "ok" on my test DVD, but I've heard that XVID is heavily compressed and just wonder if there's any input out there on using these files.

 

VIDEO

 

ID :0
Format :MPEG-4 Visual
Format profile :Advanced Simple@L5
Format settings, BVOP :2
Format settings, QPel :No
Format settings, GMC :No warppoints
Format settings, Matrix :Default (H.263)
Muxing mode :Packed bitstream
Codec ID :XVID
Codec ID/Hint :XviD
Duration :2mn 9s
Bit rate :9 428 Kbps
Width :1 280 pixels
Height :972 pixels
Display aspect ratio :4:3
Frame rate :30.000 fps
Color space :YUV
Chroma subsampling :4:2:0
Bit depth :8 bits
Scan type :Progressive
Compression mode :Lossy
Bits/(Pixel*Frame) :0.253
Stream size :145 MiB (98%)
Title :Video #1
Writing library :XviD 1.1.2 (UTC 2006-11-01)

 

AUDIO

 

ID :1
Format :ADPCM
Codec ID :2
Codec ID/Hint :Microsoft
Duration :2mn 8s
Bit rate mode :Constant
Bit rate :176.4 Kbps
Channel(s) :1 channel
Sampling rate :44.1 KHz
Bit depth :4 bits
Stream size :2.73 MiB (2%)
Interleave, duration :46 ms (1.39 video frame)
Title :Audio #1
 
Replies
  • Currently Being Moderated
    Feb 24, 2013 12:24 PM   in reply to kar13

    You are being given MPEG4 files, which are highly compressed

     

    The DVD specification is for MPEG2 files (as VOB) which are also highly compressed

     

    You are re-compressing a compressed file

     

    If you could be given a better source file, or one that is already in a DVD legal MPEG2 format, you should have a better DVD

     
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  • Currently Being Moderated
    Feb 24, 2013 10:16 AM   in reply to kar13

    That audio bit depth looks wrong too - 176.4Kbps is CD-Audio with Subchannels rates, yet we see 1 channel at 4 bits? I would throw this back & ask for LPCM audio at 16/48 minimum.

     

    Traditionally & historically, XviD is a nightmare & best avoided if at all possible. Why? because it can - and does - play havoc with your installed codecs (likewise DivX).

     

    It will need to get interlaced as well during transcoding - this will lose quality.  Finally, the size is a funky one too - 1280x720 I have heard of, but 1280x972?

     

    Maybe I am out of touch.....but this just looks wrong.

     
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