rfc9328v3.txt   rfc9328.txt 
skipping to change at line 2029 skipping to change at line 2029
The value of the parameter is a comma-separated (',') list of The value of the parameter is a comma-separated (',') list of
base64 encoding (Section 4 of [RFC4648]) representations of SEI base64 encoding (Section 4 of [RFC4648]) representations of SEI
NAL units, as specified in [VSEI]. NAL units, as specified in [VSEI].
| Informative note: Intentionally, no list of applicable or | Informative note: Intentionally, no list of applicable or
| inapplicable SEI messages is specified here. Conveying | inapplicable SEI messages is specified here. Conveying
| certain SEI messages in sprop-sei may be sensible in some | certain SEI messages in sprop-sei may be sensible in some
| application scenarios and meaningless in others. However, a | application scenarios and meaningless in others. However, a
| few examples are described below: | few examples are described below:
|
1. In an environment where the bitstream was created from film- | In an environment where the bitstream was created from film-
based source material, and no splicing is going to occur | based source material, and no splicing is going to occur
during the lifetime of the session, the film grain | during the lifetime of the session, the film grain
characteristics SEI message is likely meaningful, and sending | characteristics SEI message is likely meaningful, and
it in sprop-sei, rather than in the bitstream at each entry | sending it in sprop-sei, rather than in the bitstream at
point, may help with saving bits and allows one to configure | each entry point, may help with saving bits and allows one
the renderer only once, avoiding unwanted artifacts. | to configure the renderer only once, avoiding unwanted
| artifacts.
2. Examples for SEI messages that would be meaningless to be |
conveyed in sprop-sei include the decoded picture hash SEI | Examples for SEI messages that would be meaningless to be
message (it is close to impossible that all decoded pictures | conveyed in sprop-sei include the decoded picture hash SEI
have the same hashtag) or the filler payload SEI message (as | message (it is close to impossible that all decoded pictures
there is no point in just having more bits in SDP). | have the same hashtag) or the filler payload SEI message (as
| there is no point in just having more bits in SDP).
max-lsr: max-lsr:
The max-lsr MAY be used to signal the capabilities of a receiver The max-lsr MAY be used to signal the capabilities of a receiver
implementation and MUST NOT be used for any other purpose. The implementation and MUST NOT be used for any other purpose. The
value of max-lsr is an integer indicating the maximum processing value of max-lsr is an integer indicating the maximum processing
rate in units of luma samples per second. The max-lsr parameter rate in units of luma samples per second. The max-lsr parameter
signals that the receiver is capable of decoding video at a higher signals that the receiver is capable of decoding video at a higher
rate than is required by the highest level. rate than is required by the highest level.
| Informative note: When the OPTIONAL media type parameters | Informative note: When the OPTIONAL media type parameters
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