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Apple ProRes
Format Specifications
With
the Apple ProRes format, you can work in a wide variety of frame sizes,
frame rates, bit depths, and even color sample ratios.
Frame Dimensions Supported in Final Cut Pro with Real-Time
Playback
Although the Apple ProRes format itself supports virtually any
frame size, the Final Cut Pro RT Extreme real‑time effects
architecture supports the following Apple ProRes frame sizes
only:
Scanning Method
The Apple ProRes format supports both interlaced and progressive
scan images and preserves the scanning method used in the source
material.
Color Recording Method
The Apple ProRes format supports the following digital video
signals:
-
RGB
-
4:2:2 Y′CBCR
-
4:4:4 Y′CBCR
Data Rates
The actual data rate of Apple ProRes codecs depends on the
dimensions, frame rate, image complexity, and quality setting
you are using.
The Apple ProRes format has a target data size for every frame,
regardless of complexity, but allows frames to fall short of
that target if they are simple (if they cannot benefit in
quality from using more bits). Such a shortfall is not reclaimed
for other frames; instead, it just produces a smaller overall
file.
The following table shows several sample data rates. The Apple ProRes
codecs are designed to target the data rates shown. Because most
sequences contain simple frames, actual bit rates are typically
5 to 10 percent lower than these targets.
|
Frame dimensions
|
Frame rate
|
Apple ProRes 4444 data rate
|
Apple ProRes 422 (HQ) data rate
|
Apple ProRes 422 data rate
|
Apple ProRes 422 (LT) data rate
|
Apple ProRes 422 (Proxy) data rate
|
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720 x 486
|
23.98 fps
|
75 Mbps
|
50 Mbps
|
34 Mbps
|
23 Mbps
|
10 Mbps
|
|
720 x 486
|
25 fps
|
79 Mbps
|
52 Mbps
|
35 Mbps
|
24 Mbps
|
10 Mbps
|
|
720 x 486
|
29.97 fps
|
94 Mbps
|
63 Mbps
|
42 Mbps
|
29 Mbps
|
12 Mbps
|
|
720 x 576
|
23.98 fps
|
88 Mbps
|
59 Mbps
|
39 Mbps
|
27 Mbps
|
12 Mbps
|
|
720 x 576
|
25 fps
|
92 Mbps
|
61 Mbps
|
41 Mbps
|
28 Mbps
|
12 Mbps
|
|
720 x 576
|
29.97 fps
|
110 Mbps
|
73 Mbps
|
49 Mbps
|
34 Mbps
|
15 Mbps
|
|
960 x 720
|
23.98 fps
|
113 Mbps
|
75 Mbps
|
50 Mbps
|
35 Mbps
|
15 Mbps
|
|
960 x 720
|
25 fps
|
118 Mbps
|
79 Mbps
|
52 Mbps
|
36 Mbps
|
16 Mbps
|
|
960 x 720
|
29.97 fps
|
141 Mbps
|
94 Mbps
|
63 Mbps
|
44 Mbps
|
19 Mbps
|
|
1280 x 720
|
23.98 fps
|
132 Mbps
|
88 Mbps
|
59 Mbps
|
41 Mbps
|
18 Mbps
|
|
1280 x 720
|
25 fps
|
138 Mbps
|
92 Mbps
|
61 Mbps
|
42 Mbps
|
19 Mbps
|
|
1280 x 720
|
29.97 fps
|
165 Mbps
|
110 Mbps
|
73 Mbps
|
51 Mbps
|
23 Mbps
|
|
1440 x 1080
|
23.98 fps
|
226 Mbps
|
151 Mbps
|
101 Mbps
|
70 Mbps
|
31 Mbps
|
|
1440 x 1080
|
25 fps
|
236 Mbps
|
157 Mbps
|
105 Mbps
|
73 Mbps
|
32 Mbps
|
|
1440 x 1080
|
29.97 fps
|
283 Mbps
|
189 Mbps
|
126 Mbps
|
87 Mbps
|
38 Mbps
|
|
1920 x 1080
|
23.98 fps
|
264 Mbps
|
176 Mbps
|
117 Mbps
|
82 Mbps
|
36 Mbps
|
|
1920 x 1080
|
25 fps
|
275 Mbps
|
184 Mbps
|
122 Mbps
|
85 Mbps
|
38 Mbps
|
|
1920 x 1080
|
29.97 fps
|
330 Mbps
|
220 Mbps
|
147 Mbps
|
102 Mbps
|
45 Mbps
|
|
2048 x 1152
|
23.98 fps
|
302 Mbps
|
201 Mbps
|
134 Mbps
|
93 Mbps
|
41 Mbps
|
|
2048 x 1152
|
25 fps
|
315 Mbps
|
210 Mbps
|
140 Mbps
|
97 Mbps
|
43 Mbps
|
|
2048 x 1152
|
29.97 fps
|
377 Mbps
|
251 Mbps
|
168 Mbps
|
116 Mbps
|
52 Mbps
|
|
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| Copyright 2015 Wayne Norman |
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