Deliver High Quality High Performance HEVC via Intel® Media Server Studio

Table 5B Relative Quality Evaluation Results on HD1080p test set for Intel® Media Server Studio HEVC Software Codec
in TU1, TU4, and TU7 modes with respect to MPEG HEVC HM14 Codec
HD1080p Test
Sequence
TU1 BD rate, %age TU4 BD rate, %age TU7 BD rate, %age
Y U V Y U V Y U V
1 Park_joy 1.13 5.41 1.63 13.42 16.96 27.48 26.40 32.88 42.50
2 Ducks_take_off 0.55 2.78 7.08 10.49 -3.20 21.87 20.40 11.05 38.23
3 CrowdRun 1.03 3.32 2.83 16.51 22.24 23.07 35.12 48.29 50.21
4 TouchDownPass 0.83 -5.35 -4.83 19.31 17.53 17.80 38.34 53.74 50.80
5 BQTerrace 4.06 -14.83 -22.44 26.64 24.92 31.83 49.85 41.01 61.06
6 ParkScene 2.69 -6.04 -7.99 17.45 21.24 19.67 33.31 40.70 36.60
Average 1.71 -2.45 -3.96 17.30 16.61 23.62 33.90 37.94 46.57
From Table 5A and 5B we can see that results on encoding server configuration used for E5 for all three TU’s
provide identical high video quality to the configuration tested earlier for i7 processor 4770K, 4-core used for
all other tests in this white paper.
Encoder Quality vs Performance Tradeoff for TU Modes for Computational
Scalability Tests for 4:2:0 8-bit
Next, we perform performance analysis tests on the aforementioned E5 server configuration. Fig. 11A shows
results of this measurement which when compared to earlier tests on i7 4770k configuration for TU1 quality
demonstrates a speedup factor of 3.5x for UHD content and 2.1x for HD content. This also shows the
benefits of high throughput server configuration for higher resolution (UHD) content. The E5 server
configuration also shows much reduced load on the cores, allowing additional similar encodes to run on the
server - this item is discussed further a little later via Figure 12.
Encoding Speed (fps)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Performance Comparison of MediaServerStudio TU1 Mode and HM14.0
4.34 (289x)
HD1080p
1.39 (347x)
0.015 0.004
Resolution
MediaServerStudio TU1
HEVC HM14.0
UHD4K
Figure 11A Average encoding speed comparison of Media Server Studio TU1 mode with HM14
Deliver High Quality, High Performance HEVC via Intel® Media Server Studio
37
Next, Table 6A and 6B show encoding speed measurements for each sequence of UHD4K and HD1080p test sets.
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