Hello, Tiki
Unfortunately, it still doesn’t work properly
I captured some packets and did some comparisons
I found that there is a part that is different…
After the SetAVTransportURI request, the A7000 sends a HEAD request…
This part of the response seems to be very important…
I checked it out, and this is not just for compatibility with SONY devices…
These tags have an effect on some other brands, such as Samsung and others
[Tunebrowser]
[foobar2000]
XML content of SetAVTransportURI request:
HEAD request part:
Attention:
1. TransferMode.dlna.org
ex: Streaming
2. ContentFeatures.dlna.org
ex: DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01700000000000000000000000000000
3. Content-Type
check these threads:
https://stackoverflow.com/questions/28422609/how-to-send-setavtransporturi-using-upnp-c
https://stackoverflow.com/questions/29182754/c-dlna-generate-dlna-org-flags