Apple Final Cut Pro 7 - Manual (Page 1915)

Recorded bit rate
Compression
ratio Color sample
ratio
Maker Digital format
25 Mbps 5:1 4:1:1 (NTSC and
PAL) Panasonic DVCPRO (D-7)
50 Mbps 3.3:1 4:2:2 Panasonic DVCPRO 50
100 Mbps 10:1 4:2:2 Panasonic DVCPRO HD
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
“Working with 24p Video.”
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.
Scanning Methods
Most HD equipment can record both progressive and interlaced video. Typically, 1080-line
video is interlaced (1080i) and 720-line video is progressive (720p). Several 1080p formats
exist, such as 1080p24, but there are no 720-line interlaced formats. For more information,
see
“About Interlaced Scanning” and “About Progressive Scanning.”
Compressed High Definition Formats
Because of the high data rate generated by HD video cameras, most HD formats compress
the image data to fit on tape. For example:
• DVCPRO HD, also generally referred to as DV-100 (in reference to its video bit rate of
100 Mbps)
• D-9 HD, an extension of the Digital S format (Digital S is designated SMPTE D9)
• D-5 HD, an extension of the D-5 format
• HDCAM and HDCAM SR
1915 Appendix B Video Formats