Apple Final Cut Pro 6 - Manual (Page 1882)

Appendix A Video Formats 399
V
DV Formats
You can easily capture and output any DV-format video via the FireWire port on your
computer. Video, audio, timecode, and device control data are all transferred via a
single FireWire cable. FireWire (also referred to as IEEE 1394 or i.LINK) is a high-speed
technology for connecting and transmitting data to and from various external devices,
such as video and audio interfaces, hard disks, and digital cameras. FireWire is
supported by many professional and consumer-level DV camcorders and decks.
24p Video
Formats that capture complete (progressive) video frames at 24 frames per second
have received a lot of attention lately. This is because 24p video uses the same frame
rate as film, and it scans images progressively. For example, a 24 fps,1920 x 1080,
progressively scanned video format closely matches the resolution of a 35 mm film
theater distribution print. For the first time since the invention of television,
moviemakers can choose video instead of film without suffering significant resolution
loss or having to cope with frame-rate conversions.
There are many ways to record 24p video within other frame rates. For more
information, see Appendix C, “
Working with 24p Video ,” on page 417.
High Definition Video Formats
Final Cut Pro has native support for HD formats such as HDV, DVCPRO HD, and
XDCAM HD. For other HD formats, you need an appropriate third-party capture interface
and hard disks with sufficient speed and capacity. HD formats are often defined by their
vertical resolutions (number of lines), scanning method (interlaced versus progressive),
and frame or field rate. For example, 1080i60 HD video has 1080 lines per frame, uses
interlaced scanning (indicated by the i), and scans 60 fields per second.
Digital
format
Maker
Color sample
ratio Compression
ratio Recorded
bit rate
DV (25) Multiple
manufacturers 4:1:1
4:2:0 (PAL)
5:1 25 Mbps
DVCAM Sony 4:1:1
4:2:0 (PAL)
5:1 25 Mbps
DVCPRO (D-7) Panasonic 4:1:1
(NTSC and PAL) 5:1 25 Mbps
DVCPRO 50 Panasonic 4:2:2 3.3:1 50 Mbps
DVCPRO HD Panasonic 4:2:2 6.7:1 100 Mbps