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Volume Two - Academic Conferences

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Table 1: Video encoding parameters<br />

Video<br />

type<br />

High<br />

quality<br />

Low<br />

quality<br />

Mobile<br />

(iOS)<br />

Minimum input<br />

requirement<br />

720p/(25/50) HD<br />

video<br />

576i/25 SD video<br />

Output<br />

resolution<br />

Figure 6: Streamed delivery framework<br />

Figure 7: High-quality web page streamed video<br />

Paul Newbury et al.<br />

Output<br />

frame rate<br />

File size (average 50<br />

minute programme)<br />

Codec and average<br />

bit rate<br />

640 x 360 50/25fps 330MB h.264 - 1100<br />

Kbits/sec<br />

512 x 288 25fps 140MB 700 Kbits/sec<br />

480 x 270 25fps 280MB h.264 - 1000<br />

Kbits/sec (no Bframes)<br />

571

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