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PRELIMINARY
FIMV-MFC V1.0
MULTI-FORMAT
VIDEO
CODEC
2
1-13
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Encoder bus loading
Table 21.1 Encoder bus loading
Item
unit
CIF
VGA
D1
No. bytes/pixel row
Byte/pixel row
352
640
720
No. pixel row/frame
Pixel row/picture
288
480
480
No bytes/luminance
Byte/luminance
101376
307200
345600
No byte/chrominance
Byte/chrominanc
e
50688 153600 172800
No byte/frame
Byte/frame
152064
460800
518400
Luminance data for 30
frames
MB/sec 3.041
9.216
10.368
Chrominance data for 30
frames
MB/sec 1.521
4.608
5.184
Frame data for 30 frames MB/sec
4.562 13.824
15.552
Encoder bandwidth requirement for 30fps
Item
unit
CIF
VGA
D1
Reading current frame
data to be encoded for
motion estimation and
computing residual
MB/sec 4.562
13.824
15.552
Reading reference
luminance data for motion
estimation/compensation
MB/sec 3.041
9.216
10.368
Reading reference
chrominance data for
motion compensation
MB/sec 3.041
9.216
10.368
Reconstructed frame write
MB/sec
4.562
13.824
15.552
Pixel row read/write for
deblocking filtering
MB/sec 3.041
9.216
10.368
Coeff. read/write for
AC/DC prediction (MPEG-
4 case)
MB/sec 3.041
9.216
10.368