6.2.22 Video Region-of-Interest (ROI)

23.3333GPPMultimedia Resource Function Controller (MRFC) - Multimedia Resource Function Processor (MRFP) Mp interface: Procedures descriptionsRelease 17TS

6.2.22.1 Video Region-of-Interest (ROI) using FECC

Figure 6.2.22.1.1 shows the message sequence chart example for indicating Video Region-of-Interest (ROI) using FECC.

Figure 6.2.2.1.1: Procedure to indicate Video ROI using FECC

6.2.22.2 "Predefined ROI" mode

Figure 6.2.2.2.1 shows the message sequence chart example for indicating Predefined ROI mode.

Figure 6.2.22.2.1: Procedure to indicate Predefined ROI mode

When the MRFC requests the IMS resources from the MRFP, the MRFC may optionally request the MRFP to support the RTCP feedback message capability for "Predefined ROI" type expressed by the parameter "3gpp-roi-predefined", as described in 3GPP TS 26.114 [23], media-level SDP predefined ROI attribute "a=predefined_ROI" defined in TS 26.114 [23] to negotiate the predefined ROI for sending and receiving video, and the RTP header extension capability for carriage of predefined ROI information as defined in IETF RFC 5285 [27] and 3GPP TS 26.114 [23].

6.2.22.3 "Arbitrary ROI" mode

Figure 6.2.22.3.1 shows the message sequence chart example for indicating Arbitrary ROI mode.

Figure 6.2.22.3.1: Procedure to indicate Arbitrary ROI mode

When the MRFC requests the IMS resources from the MRFP, the MRFC may optionally request the MRFP to support the RTCP feedback message capability for "Arbitrary ROI" type expressed by the parameter "3gpp-roi-arbitrary", as described in 3GPP TS 26.114 [23], and the RTP header extension capability for carriage of arbitrary ROI information as defined in IETF RFC 5285 [27] and 3GPP TS 26.114 [23].