Hello,

 

I did not look in the RFC regarding the removing the video line in questions. You are probably referring to the sdp_remove_media() function.

 

Do you expect problems when you are doing this? A quick web search found a similar suggestion also e.g. for Cisco router and others.

The problem with simply removing a media section is that the answer going back to the A-side will have mismatched media sections, which is invalid according to the RFC.

You can remove the video media section in the offer going from A to B, but in the answer from B to A the media section should be restored with the port set to zero, indicating a rejected media section. Since the answer from B won't contain a section for the video, a new `m=` must be inserted in the SDP going back to A, matching the `m=` originally presented by A.

Cheers