Media Decode and Composition - Bridging the Gap

Explore the challenges and potential solutions in media decoding and composition for non-desktop, media-led devices like set-top boxes. Delve into the capabilities of dedicated hardware for media decoding and 2D composition, which often surpass what's available through general-purpose APIs. Learn about the advantages of overlays in providing higher-quality scaling and filtering compared to EGL-based media composition. Examine the current state of zerocopy media pipelines, including the use of OpenMAX and platform-specific hacks. Gain insights into the overall pipeline, identify existing gaps and issues, and discover potential ways forward using both new and existing frameworks. This talk from the Linux Plumbers Conference offers a comprehensive look at bridging the gap between media decode and composition in specialized hardware environments.