| 摘要 |
This disclosure describes techniques for allocating and reallocating multimedia data between a base layer and an enhancement layer defined in a wireless modulation scheme. The reallocation techniques may vary depending on whether bidirectional predictive (B) frames were originally allocated to the base layer, and whether a re-encode request has been issued to encoders, e.g., to reduce the encoding rate to meet bandwidth constraints associated with a wireless communication channel. The described techniques may help to efficiently utilize channel resources, balance bandwidth between channels and possibly improve error resilience at the application layer. In some cases, the techniques can help to reduce overall aggregate bandwidth usage. |
