VideoHelp Forum




+ Reply to Thread
Results 1 to 6 of 6
  1. is this the SVCD Standard ?

    Bitrate: 2600 CBR (is it CBR? or VBR ?)
    NTSC: 480x480
    PAL: 480x576
    Interlaced ?? Yes Interlaced or Non-Interlaced
    MPEG-2

    is that the correct standard ? I'm trying to setup my "PreSet's" in my tool





    your pal,
    Stinky
    Quote Quote  
  2. Yeah, I think it is 2600 VBR and I think the picture looks better when it is deinterlaced by the MMC software. I looked over the "what is.." section on this site, but no mention of the interlaced v. deinterlaced problem.
    Quote Quote  
  3. According to Phillips SVCD technical explanation it should be:

    Bitrate 2600 VBR
    NTSC: 480x480 29,97fps
    PAL: 480x576 25fps

    Their specs also states (and I quote):"For the coding of video, the constraints defined by MPEG for the Main Profile at Main Level (MP@ML) shall apply" and I don't have a clue what they mean by that.

    Thats all I know...if you would like to get a copy of the specs (about 7 pages) write me a private mess...
    Quote Quote  
  4. Member
    Join Date
    Apr 2001
    Location
    United States
    Search Comp PM
    How about this one:

    MPEG-2
    480x480 resolution
    29.97 Frames/sec (or 23.967 with pulldown applied)
    VBR with 2520 MAX bitrate
    Audio 128k Layer-II

    Someone told me this is still, technically speaking, a "Standard" SVCD. Because, supposedly, you can tweak within any range of bitrate (so long at total doesn't go over 2600), just making sure the framerate and resolution are still compliant.

    Is this right, or am I just using a very leniant player?
    Quote Quote  
  5. Yeah...that seems to be a good one, homerpez. I forgott the 23,97 framerate (which with 3:2 pulldown ends upp at 29,97).

    What I should have written was that the maxbitrate applies to the total biterate of video and audio together. so in your case 2520+128=2648 wich should be accepted by virtualy every stand-alone player.

    Phillips tech specs say this about audio:
    MPEG-1, Layer II from 32 to 384 kbps up to 2 channels stereo or 4 mono channels.
    Surround sound MPEG-2 (5+1) extension.

    When i do SVCDs I usually set the max bitrate to 2300 because CCE seems to go over this limit anyway, and I set the audio to 192kbps and this works fine on all stand-alone players I tried it on (HOYO 8050, Pioneer DV-343, SONY 700 series). and I think the quality is very good, I have never been able to create blockiness on any of the SVCDs I have made (not even U-571 or The Mummy Returns)...
    Quote Quote  
  6. Member
    Join Date
    Nov 2001
    Location
    Utah, USA
    Search PM
    I just spent a half hour on a post and my modem dropped me off. One never thinks to "save" a form posting every once in a while, huh? So, please forgive me if I seem a little bit testy, now. UGH.

    Okay, I appreciate everyone's input to this question, but I'm still missing something.

    1) Is 2600 kbps the standard or is it 2520?

    2) Regardless of the answer to #1, does that also include the audio portion or is that just for the video? (I'm guessing that it's max 2520 on the video and then whatever the traffic will allow on the audio -- e.g. 224 kbps)

    3) Is the "CQ" setting in TMPGEnc a variation of VBR or a variation of CBR? (I suppose this should go in a different post, but since I'm here...)

    4) The interlacing thing ... I'm -assuming- that, regardless of input source, the results of any encoding process need to be interlaced in order to be a "standard" VCD MPEG-1 or SVCD MPEG-2 file. True? Somehow I doubt that the DVD players are going to try to detect source type and compensate for it, if necessary.

    5) Although the original question's about SVCD, I just built a 3 minute XSVCD using 720x480 CQ 65 max 3500 kbps (aud at 224)and my pioneer 444 has trouble with it. It starts stuttering after only a few seconds. Pausing and unpausing smooths it out, but only for a few seconds. Anyway, TMPGEnc's "Standard SVCD" template seems to work fine, though.
    Quote Quote  



Similar Threads

Visit our sponsor! Try DVDFab and backup Blu-rays!