1080p59 and 1080p50 TX streams are not Cinst narrow compliant.

[ktruongimg]

Hi,

We tested the 2110-20 TX streams, generated by the RxTxApp, against the Phabrix. For 1080i and 720p streams, the streams are Cinst narrow compliant. The 1080p50 and 1080p59 streams are not. We use the 'v25.02' code base with an E810 Ethernet module. The json configuration, the Phabrix result for a 1080p59 stream, and the 'cpuinfo' files are attached. Please confirm our findings.

Thanks.

cpuinfo.txt
tx_1v_1080p59.json

[Sakoram]

We rechecked 1080p50 and 1080p59 with EBU list and in our network those are compliant. (images bellow).

Did you run RxTxApp with the --ptp argument or synchronize the system clock with PTP?
https://openvisualcloud.github.io/Media-Transport-Library/doc/run.html#ptp-setup

NOTE: using --ptp with VFs have usually better accuracy then using system clock, however, it is sensitive to system load (as it does not use hardware clock) and can lose accuracy at higher loads, so we usually recommend the system clock with VFs or PFs with --ptp

PS.
Are you sure that no network switch affects the stream?

[Sakoram]

If the problem persists, please send logs

[ktruongimg]

Hi @Sakoram,

For our test environment, we set up the ptp4l and phc2sys as specified in the "PTP Setup" page.

As requested, I ran the RxTxApp with the '--ptp' option. The 1080p50/59 output streams still do not meet specifications. I have attached the log for the 1080p59 test.

st20-1080p59-log.txt