giles 771fb8cebc Add decord for GPU-native video decode ...

- Install decord in GPU Dockerfile for hardware video decode
- Update GPUVideoSource to use decord with GPU context
- Decord decodes on GPU via NVDEC, avoiding CPU memory copies
- Falls back to FFmpeg pipe if decord unavailable
- Enable STREAMING_GPU_PERSIST=1 for full GPU pipeline

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-02-04 01:17:22 +00:00

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