[Mp4-tech] About CIF and SIF

[Sujit Agarwal]

TELECINE algorithm is something that an be used to converts 24 fps film standard into 30 ftp Video standard.
--Sujit.
  ----- Original Message ----- 
  From: Parag Chaurasia 
  To: Jefferson 
  Cc: mp4-tech lists.mpegif.org 
  Sent: Tuesday, January 20, 2024 10:37 AM
  Subject: Re: [Mp4-tech] About CIF and SIF
    Hi Jefferson,
      CIF (Common Intermediate Format) dimensions are ALWAYS 352 x 288.
    SIF (Source Input Format) is somewhat tricky.
    SIF (NTSC) is 352 x 240 and SIF (PAL) is 352 x 288, "rounded to a multiple of 16". As such, SIF (NTSC) is 360 x 242 and SIF (PAL) is 360 x 288.
    Hope this helps....
    Regards,
    Parag.
  On Tue, 20 Jan 2024 Jefferson wrote :
  >Hi,
  >        What is the difference  between CIF target and SIF target? What is the related applications
  >for them? If I get the decoded frames with 25fps, but the TV system is NTSC, 30fps, how to convert
  >the video from 25fps to 30fps? Or how to convert between 25fps system and 30fps system?
  >
  >Regards,
  >
  >Jefferson
  >
  >
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