Graphics Reference
In-Depth Information
Tabl e 2. 6
HEVC SEI messages
SEI message
Type
Description
Buffering period
Prefix
Provides parameters for HRD
initialization
Picture timing
Prefix
Provides HRD parameters and interlaced
picture indication
Pan scan rectangle
Prefix
Provides conformance cropping window
parameters, to indicate when output
pictures are smaller than decoded
pictures
Filler payload
Prefix/suffix
Carries unused data, to enable encoder to
achieve desired bit rate
User data registered
Prefix/suffix
Carries user-specific data, with type
registered through registration
authority
User data unregistered
Prefix/suffix
Carries user-specific data, not registered
Recovery point
Prefix
Indicates first picture with acceptable
quality after non-IRAP random
access
Scene info
Prefix
Description of scene and scene transition
Picture snapshot
Prefix
Indicates picture intended for use as
still-image snapshot of the video
Progressive refinement seg. start
Prefix
Indicates start of a sequence of coded
pictures to progressively improve
quality of a particular picture
Progressive refinement seg. end
Prefix
Indicates end of a sequence of coded
pictures to progressively improve
quality of a particular picture
Film grain characteristics
Prefix
Describes a parameterized model for
film grain synthesis
Post filter hint
Prefix/suffix
Provides coefficients of a post filter
Tone mapping info
Prefix
Provides remapping information of the
colour samples of the output pictures
for customization to particular
display environments
Frame packing arrangement
Prefix
Indicates that the output picture contains
multiple distinct spatially packed
frames, and the particular
arrangement used
Display orientation
Prefix
Indicates to decoder to rotate or flip the
output picture prior to display
Structure of pictures info
Prefix
Provides series pattern information of
coded picture types
Decoded picture hash
Suffix
Provides a hash for each colour
component of the decoded picture, to
assist decoder to detect mismatch
with encoder
Active parameter sets
Prefix
Indicates the active VPS and SPS
(continued)
