Add GBM memory support for zero-copy Qualcomm pipelines#48
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Enable edgeimpulsevideoinfer and edgeimpulseoverlay to accept video/x-raw(memory:GBM),format=NV12 buffers from qtiqmmfsrc, eliminating buffer copies in the inference pipeline. Key changes: - Switch video inference element from NeverInPlace to AlwaysInPlace mode (no more input→output buffer copy) - Add NV12→RGB conversion for inference feature extraction - Accept memory:GBM caps on both video inference and overlay elements - Add gstreamer-allocators dependency for FdAllocator support - Add GBM/DRM dev packages to cross-compilation Dockerfile - Include RB3 benchmark script, and integration tests
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Enable edgeimpulsevideoinfer and edgeimpulseoverlay to accept video/x-raw(memory:GBM),format=NV12 buffers from qtiqmmfsrc, eliminating buffer copies in the inference pipeline.
Key changes: