Required bit rate » History » Version 1
AUGER, Anne sophie, 03/23/2015 04:11 PM
| 1 | 1 | AUGER, Anne sophie | h1. Required bit rate |
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| 2 | 1 | AUGER, Anne sophie | |
| 3 | 1 | AUGER, Anne sophie | |
| 4 | 1 | AUGER, Anne sophie | In order to define the bit rate required for the transmission of video streams we need some input parameters, provided in the mission statement: |
| 5 | 1 | AUGER, Anne sophie | |
| 6 | 1 | AUGER, Anne sophie | > # aspect ratio of the video : AR=1,78 |
| 7 | 1 | AUGER, Anne sophie | > # quality of the encoded video L=720p |
| 8 | 1 | AUGER, Anne sophie | > # frame cadence FPS=12 fps |
| 9 | 1 | AUGER, Anne sophie | |
| 10 | 1 | AUGER, Anne sophie | We used the following formula |
| 11 | 1 | AUGER, Anne sophie | |
| 12 | 1 | AUGER, Anne sophie | p=. Bit rate = FPS*5,0692 * L ^1,391^ /(1000*AR) |
| 13 | 1 | AUGER, Anne sophie | |
| 14 | 1 | AUGER, Anne sophie | So |
| 15 | 1 | AUGER, Anne sophie | |
| 16 | 1 | AUGER, Anne sophie | p=. *Bit rate=322 Kbps* |
| 17 | 1 | AUGER, Anne sophie | |
| 18 | 1 | AUGER, Anne sophie | As the link will allow video transmission, we will need an adapted encapsulation protocol, so we must take into account extra bits: we decide to define a bit rate of 500 kbps. |