H.264 Hd (Avc Cp Default); H.264 Content Sharing Properties; Guidelines For Sharing Content Using H.264 Hd - Polycom RealPresence 1500 Administrator's Manual

H.264 HD (AVC CP default)

H.264 HD may be used for content sharing only for a single MCU, but not in cascading conferences.

H.264 Content Sharing Properties

The H.264 HD option should be selected if most endpoints in the conference support H.264 to ensure high
quality content.
When this protocol option is selected, content minimal bit rate is determined. For more information, see
Setting the Minimum Content Rate for Each Content Quality Setting for H.264
Content parameters are determined by the Collaboration Server applying the Highest Common principle
(see Highest Common), for H.264 media content protocol only.

Guidelines for Sharing Content Using H.264 HD

● Only endpoints supporting HD H.264 content (at least HD720p5) can share content.
● This option is not available in SVC-enabled conferencing modes.
● Base or high profiles are auto-selected based on endpoints and MCU capabilities (see table
AVC (non-TIP) conferences).
Setting the Minimum Content Rate for Each Content Quality Setting for H.264 HD
System flags determine the minimum line rate required for endpoints to share H.264 high quality content for
each of the Content Settings: Graphics, Hi Resolution Graphics and Live Video.
H.264 HD System Flags
Content Settings
Graphics
Hi Resolution Graphics
Live Video
To change the system flag value, the flag must be first manually added to the System Configuration (see
Modifying System Flags.
Polycom®, Inc.
Flag Name
H264_HD_GRAPHICS_MIN_CONTENT_RATE
H264_HD_HIGHRES_MIN_CONTENT_RATE
H264_HD_LIVEVIDEO_MIN_CONTENT_RATE
Sharing Content During Conferences
HD.
Range
0-1536
0-1536
0-1536
H.264
Default
128
256
384
151