Table 2.
Measured parameter overview.
| Application data parameter | Explanation | Example log |
|---|---|---|
| timestamp | timestamp of logged information | 2020-02-13 22:39:23.001 |
| fmt | video stream format code59 | 247 (equal to 720p) |
| fps | frames per second | 25 |
| afmt | audio format code | 140 for 128k m4a audio |
| bh | current buffer filling level in milliseconds | 39939 for 39.939 s |
| droppedFrames | number dropped frames | 0 (equal to no dropped frames) |
| playedFrames | number played out frames | 1258 |
| videoid | current played video ID | 6fd2kLmSDQ |
| cbrver | YouTube app version | 14.46.52 |
| cver | YouTube app version | 14.46.52 |
| cosver | OS version of smartphone | 9 |
| conn | number of parallel open connections | 3 |
| bat | current battery filling status | 1.000:1 (equal to full battery) |
| Network data parameter | ||
| timestamp | epoch timestamp of packet arrival | 1581633565.013519 |
| ipSrc | source IP address | 10.10.0.140 (device IP in own network) |
| ipDst | destination IP address | 74.125.13.143 (Google server IP) |
| tcpPortSource | TCP source port | 443 (as HTTPS port) |
| tcpPortDst | TCP destination port | 37475 |
| udpPortSrc | UDP source port | 443 (only available if UDP traffic) |
| udpPortDst | UDP destination port | 48372 (only available if UDP traffic) |
| tcpLen | TCP segment length in Byte | 1358 (payload length in Byte) |
| udpLen | UDP packet length in Byte | 1358 (payload length in Byte) |
| payloadProtocolNumber | used transmission protocol (TCP or UDP) | 6 (for TCP), 17 (for UDP) |