Apple Motion 4 - Manual (Page 1408)

Bytes per second Bits per second (video only) Format
11.75 MB/sec. 40 Mbps DVCPRO HD, 720p24
26.25 MB/sec. 210 Mbps D-5 HD
3.6 MB/sec. 25 Mbps DV
3.6 MB/sec. 25 Mbps DVCAM
3.6 MB/sec. 25 Mbps DVCPRO(25)
6.25 MB/sec. 50 Mbps DVCPRO 50
11.9 MB/sec. 95.2 Mbps Digital Betacam
21.5 MB/sec. 172 Mbps D-1
Choosing a Frame Rate
Most DVCPRO HD cameras and decks allow two types of video frame rates:
• Integer frame rates such as 60, 30, and 24 fps
• NTSC-related frame rate variants such as 59.94, 29.97, and 23.98 fps
Note: If you are outputting via Final Cut Pro, Motion only supports NTSC-related timebases
such as 59.94, 29.97, and 23.98 fps when transferring video between a computer and a
DVCPRO HD device via FireWire. Using tapes recorded with whole-number frame rates
such as 60 fps or 30 fps is not supported in Motion.
Popular Video Codecs for File Exchange
You can use video compressed with nearly any video codec in Motion. Bear in mind that
when you are working on a project in Motion, it is best to use high-quality codecs with
a minimum of compression. Highly compressed video files, such as those compressed
using the MPEG-4 or Sorenson codec, are probably going to be unsuitable for creating
high-quality work.
Note: Motion works in the RGB color space. Any clips you use in Motion that were captured
or recompressed using a Y
′
C
B
C
R
codec, such as DV, the Apple ProRes family, or
Uncompressed 8-bit 4:2:2, are converted to the RGB color space when used in a Motion
project. Clips that are exported from Motion using a Y
′
C
B
C
R
codec are converted back
into the Y
′
C
B
C
R
color space.
Apple ProRes
The Apple ProRes family of codecs provides a variety of versatile, adjustable compression
formats to serve nearly any post-production workflow. There are five different Apple
ProRes codecs, from Apple ProRes 4444, which includes an alpha channel, to
Apple ProRes 422 (Proxy), an offline format used by Final Cut Server for proxy movies.
1408 Appendix B Video and File Formats