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Consumer electronics platforms are progressively being introduced in most domains, from personal appliances to high-quality multimedia control infrastructures. They are high quality platforms that require that computation resources be used in a cost-effective way. Multimedia applications compete for resources in a greedy manner, which may threaten the safe system execution. Arbitration of application...
To support real-time properties, mobile real-time operating system (RTOS) platforms have added to their classical cyclic executive model more flexible concurrency paradigms based on threads and preemptive priority-based scheduling algorithms. However, in newer mobile RTOS, the concurrency model is also going back to prior cooperative multi-tasking models similar to cyclic executives (based on active...
Applications of high-quality multimedia embedded systems (HQMES) contain concurrent functionality pieces; they may have a flexible structure consisting of services, components, or tasks. This allows applications to offer different execution possibilities to provide a same (or different) output quality. Since multimedia applications are typically greedy resource consumers, they may interfere one another's...
Media processing in high-quality multimedia embedded systems (HQMES) has real-time constraints. Timely processing and rendering of video frames and audio samples is essential to meet user expectations. The nature of incoming media suffers unforeseen variations which have different resource requirements. Therefore, HQMES have to integrate policies for efficiently and smoothly adapting to these changes...
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