| 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 | |||
| End of changes. 1 change blocks. | ||||
| 14 lines changed or deleted | 15 lines changed or added | |||
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