In DPTX user guide, only info about SDP is "Supports SDP packet for static HDR mode".
I wonder what does static HDR mode mean? I didn't find in VESA DP specification.
Does DPTX IP support infoframe packets? I didn't find related drivers in SDK folder. If yes, Is there any example?
Yes, the DPTX IP support infoframe packets.
HDR data is transmitted using SDP packets. Single SDP packet is sufficient for static and will usually transmitted at that start of the data transfer.
You can send them the same way as the audio packets. Refer to the Secondary Channel Operation section in the PG299.
There is no example available at the moment