• Panasonic Cameras

  Real DVCPRO HD Bitrate?

  Posted by Dylan Reeve on August 23, 2008 at 11:30 pm

  100Mb/s is the simple answer for DVCPRO HD data rate, but not totally accurate, at least in some cases.

  I’ve been working with Varicam, at 25fps which actually results in a datarate of 42Mb/s ((100 / 60) * 25). So that’s the case for Varicam, does it apply equally to all DVCPRO HD recording? Is 720p at DVCPRO done with static data allocations per-frame – so will a 720p frame in DVCPRO HD always be 1.66Mb?

  I haven’t got any 1080 footage to look at.

  How does the achieved bitrate vary from the format bitrate in different modes? What are the real achieved bitrates for 1080i50 and 720p25 with P2 acquisition?

  Charles Taylor replied 17 years, 8 months ago 3 Members · 2 Replies
• 2 Replies

• 

  John Fishback

  August 24, 2008 at 5:18 pm

  Check out Digital Heaven’s Videospace online app. You choose the format, enter length of clip and it gives total space needed.

  https://www.videospaceonline.com/

  John

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  Charles Taylor

  August 27, 2008 at 9:04 pm

  AFAIK assuming a static frame size based on 100mb/s for the standard rate would be fairly accurate.
  ie.
  1080i60 ~ 100mbs
  1080p24 ~ 80mbs
  720p60 ~ 100mbs
  720p24 ~ 40 mbs

  etc.

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