Resource usage
This section lists the memory and processing requirements for the SSRC module.
Memory requirements
The following are the memory requirements for the SSRC module.
Memory item |
Size in bytes |
|---|---|
Instance memory (persistent) |
548 |
Scratch memory (non-persistent) |
15.536 1 |
Program memory for Arm9E and XScale |
14k |
Program memory for Arm7 |
15k |
Parent topic:Resource usage
1 Worst case number for I/O buffers of 40 ms. If smaller I/O buffers are used, this number is smaller. The required scratch memory is roughly equal to 2 times the buffer size on the highest sample rate.
Processing requirements
The following tables give the MIPS performance of the SSRC module. The cycles are measured with zero wait state memory and for I/O buffers of 40 ms.
Note: The user processing 32-bit processing must refer to the very high-quality MIPS results.
On Arm7 and Arm9
FsIN / FsOUT |
8000 |
11025 |
12000 |
16000 |
22050 |
24000 |
32000 |
44100 |
48000 |
|---|---|---|---|---|---|---|---|---|---|
8000 |
0.13 |
4.77 |
5.17 |
1.84 |
6.75 |
7.33 |
3.55 |
9.1 |
9.89 |
11025 |
5.42 |
0.18 |
5.58 |
6.84 |
2.53 |
7.75 |
9.71 |
4.89 |
10.31 |
12000 |
5.85 |
6.39 |
0.2 |
7.01 |
8.97 |
2.76 |
9.89 |
12.94 |
5.32 |
16000 |
1.69 |
7.74 |
7.99 |
0.26 |
9.54 |
10.33 |
3.68 |
13.5 |
14.65 |
22050 |
7.2 |
2.33 |
10.09 |
10.83 |
0.36 |
11.17 |
13.67 |
5.07 |
15.49 |
24000 |
7.79 |
8.33 |
2.53 |
11.7 |
12.78 |
0.39 |
14.03 |
17.94 |
5.51 |
32000 |
3.12 |
10.32 |
10.58 |
3.38 |
15.48 |
15.98 |
0.52 |
19.08 |
20.66 |
44100 |
9.96 |
4.3 |
13.65 |
14.4 |
4.65 |
20.18 |
21.67 |
0.72 |
22.34 |
48000 |
10.8 |
11.34 |
4.68 |
15.58 |
16.67 |
5.06 |
23.4 |
25.56 |
0.78 |
FsIN / FsOUT |
8000 |
11025 |
12000 |
16000 |
22050 |
24000 |
32000 |
44100 |
48000 |
|---|---|---|---|---|---|---|---|---|---|
8000 |
0.07 |
7.71 |
8.24 |
2.28 |
10.5 |
11.28 |
4.41 |
13.44 |
14.48 |
11025 |
8.19 |
0.1 |
8.96 |
11.04 |
3.14 |
12 |
15.09 |
6.08 |
15.2 |
12000 |
8.76 |
9.52 |
0.1 |
11.3 |
14.48 |
3.41 |
15.36 |
20.07 |
6.61 |
16000 |
2.14 |
11.73 |
12.01 |
0.14 |
15.41 |
16.48 |
4.55 |
21 |
22.56 |
22050 |
10.78 |
2.94 |
15.39 |
16.38 |
0.19 |
17.92 |
22.08 |
6.27 |
24 |
24000 |
11.57 |
12.34 |
3.2 |
17.51 |
19.04 |
0.21 |
22.61 |
28.97 |
6.83 |
32000 |
4.19 |
15.48 |
15.77 |
4.27 |
23.46 |
24.01 |
0.28 |
30.83 |
32.96 |
44100 |
14.78 |
5.77 |
20.56 |
21.56 |
5.89 |
30.77 |
32.75 |
0.38 |
35.83 |
48000 |
15.92 |
16.7 |
6.28 |
23.15 |
24.69 |
6.41 |
35.02 |
38.08 |
0.42 |
FsIN / FsOUT |
8000 |
11025 |
12000 |
16000 |
22050 |
24000 |
32000 |
44100 |
48000 |
|---|---|---|---|---|---|---|---|---|---|
8000 |
0.13 |
13.61 |
14.52 |
4.43 |
19.03 |
20.43 |
8.8 |
25.06 |
26.99 |
11025 |
14.85 |
0.18 |
15.91 |
19.47 |
6.1 |
21.82 |
27.35 |
12.13 |
28.38 |
12000 |
15.84 |
17.36 |
0.2 |
19.97 |
25.4 |
6.64 |
27.85 |
36.26 |
13.21 |
16000 |
4.25 |
21.24 |
21.79 |
0.26 |
27.22 |
29.03 |
8.86 |
38.07 |
40.85 |
22050 |
20.02 |
5.85 |
27.72 |
29.7 |
0.36 |
31.81 |
38.94 |
12.2 |
43.63 |
24000 |
21.45 |
22.98 |
6.37 |
31.68 |
34.71 |
0.39 |
39.94 |
50.8 |
13.28 |
32000 |
8.39 |
28.74 |
29.29 |
8.5 |
42.48 |
43.58 |
0.52 |
54.43 |
58.07 |
44100 |
28.11 |
11.57 |
38.05 |
40.03 |
11.71 |
55.43 |
59.4 |
0.72 |
63.62 |
48000 |
30.19 |
31.71 |
12.59 |
42.9 |
45.96 |
12.74 |
63.36 |
69.42 |
0.78 |
Parent topic:Processing requirements
On Arm9e and XScale
FsIN / FsOUT |
8000 |
11025 |
12000 |
16000 |
22050 |
24000 |
32000 |
44100 |
48000 |
|---|---|---|---|---|---|---|---|---|---|
8000 |
0.03 |
1.14 |
1.25 |
0.54 |
1.95 |
2.14 |
1.04 |
3.85 |
4.23 |
11025 |
1.31 |
0.05 |
1.36 |
1.62 |
0.75 |
2.23 |
2.78 |
1.44 |
4.38 |
12000 |
1.43 |
1.57 |
0.05 |
1.68 |
2.13 |
0.82 |
2.84 |
3.72 |
1.57 |
16000 |
0.5 |
1.86 |
1.93 |
0.07 |
2.27 |
2.5 |
1.09 |
3.9 |
4.29 |
22050 |
2.19 |
0.69 |
2.42 |
2.61 |
0.1 |
2.72 |
3.24 |
1.5 |
4.46 |
24000 |
2.4 |
2.52 |
0.75 |
2.86 |
3.15 |
0.1 |
3.35 |
4.25 |
1.63 |
32000 |
0.92 |
3.12 |
3.18 |
1.01 |
3.72 |
3.86 |
0.14 |
4.55 |
4.99 |
44100 |
4.28 |
1.27 |
4.15 |
4.37 |
1.39 |
4.83 |
5.23 |
0.19 |
5.43 |
48000 |
4.7 |
4.9 |
1.39 |
4.8 |
5.03 |
1.51 |
5.72 |
6.3 |
0.21 |
FsIN / FsOUT |
8000 |
11025 |
12000 |
16000 |
22050 |
24000 |
32000 |
44100 |
48000 |
|---|---|---|---|---|---|---|---|---|---|
8000 |
0.06 |
1.87 |
2.02 |
1.07 |
3.09 |
3.36 |
2.07 |
6.09 |
6.63 |
11025 |
2.27 |
0.09 |
2.25 |
2.66 |
1.47 |
3.56 |
4.4 |
2.85 |
7.01 |
12000 |
2.45 |
2.76 |
0.09 |
2.75 |
3.43 |
1.6 |
4.5 |
5.83 |
3.1 |
16000 |
0.99 |
3.23 |
3.36 |
0.13 |
3.73 |
4.05 |
2.14 |
6.17 |
6.72 |
22050 |
3.69 |
1.36 |
4.14 |
4.55 |
0.17 |
4.51 |
5.31 |
2.95 |
7.13 |
24000 |
4.01 |
4.28 |
1.48 |
4.9 |
5.51 |
0.19 |
5.51 |
6.85 |
3.21 |
32000 |
1.83 |
5.26 |
5.39 |
1.98 |
6.46 |
6.71 |
0.25 |
7.47 |
8.09 |
44100 |
7.22 |
2.52 |
6.94 |
7.38 |
2.72 |
8.27 |
9.1 |
0.35 |
9.02 |
48000 |
7.85 |
8.33 |
2.74 |
8.02 |
8.57 |
2.97 |
9.81 |
11.03 |
0.38 |
FsIN / FsOUT |
8000 |
11025 |
12000 |
16000 |
22050 |
24000 |
32000 |
44100 |
48000 |
|---|---|---|---|---|---|---|---|---|---|
8000 |
0.03 |
1.21 |
1.33 |
0.61 |
2.08 |
2.29 |
1.17 |
4.1 |
4.51 |
11025 |
1.47 |
0.05 |
1.44 |
1.72 |
0.84 |
2.38 |
2.97 |
1.61 |
4.66 |
12000 |
1.62 |
1.76 |
0.05 |
1.78 |
2.26 |
0.91 |
3.03 |
3.98 |
1.75 |
16000 |
0.55 |
2.1 |
2.17 |
0.07 |
2.42 |
2.65 |
1.22 |
4.16 |
4.57 |
22050 |
2.49 |
0.76 |
2.73 |
2.95 |
0.1 |
2.88 |
3.45 |
1.68 |
4.75 |
24000 |
2.75 |
2.86 |
0.83 |
3.23 |
3.52 |
0.1 |
3.56 |
4.53 |
1.83 |
32000 |
1 |
3.56 |
3.63 |
1.11 |
4.2 |
4.34 |
0.14 |
4.84 |
5.3 |
44100 |
4.86 |
1.38 |
4.74 |
4.98 |
1.53 |
5.46 |
5.89 |
0.19 |
5.75 |
48000 |
5.38 |
5.55 |
1.5 |
5.5 |
5.71 |
1.66 |
6.47 |
7.05 |
0.21 |
FsIN / FsOUT |
8000 |
11025 |
12000 |
16000 |
22050 |
24000 |
32000 |
44100 |
48000 |
|---|---|---|---|---|---|---|---|---|---|
8000 |
0.06 |
2.11 |
2.29 |
1.2 |
3.55 |
3.86 |
2.31 |
6.99 |
7.61 |
11025 |
2.62 |
0.09 |
2.52 |
3.01 |
1.66 |
4.07 |
5.07 |
3.19 |
8 |
12000 |
2.85 |
3.15 |
0.09 |
3.11 |
3.9 |
1.81 |
5.17 |
6.75 |
3.47 |
16000 |
1.09 |
3.73 |
3.85 |
0.13 |
4.22 |
4.57 |
2.41 |
7.1 |
7.72 |
22050 |
4.32 |
1.5 |
4.79 |
5.23 |
0.17 |
5.05 |
6.02 |
3.32 |
8.15 |
24000 |
4.74 |
4.99 |
1.64 |
5.69 |
6.3 |
0.19 |
6.22 |
7.8 |
3.61 |
32000 |
1.98 |
6.18 |
6.3 |
2.18 |
7.45 |
7.71 |
0.25 |
8.44 |
9.14 |
44100 |
8.43 |
2.72 |
8.18 |
8.64 |
3.01 |
9.59 |
10.47 |
0.35 |
10.1 |
48000 |
9.26 |
9.66 |
2.97 |
9.49 |
9.97 |
3.27 |
11.39 |
12.59 |
0.38 |
Parent topic:Processing requirements
On Cortex-A8 for worst case of 48000 Hz to 44100 Hz
Mode |
MIPs |
|---|---|
Mono at High Quality |
3.13 |
Stereo at High Quality |
3.61 |
Mono at Very High Quality |
4.13 |
Stereo at Very High Quality |
6.52 |
Parent topic:Processing requirements
Parent topic:Resource usage
Parent topic:Introduction