RDKEMW-19892: [RDKEMW] [BCM Rogers Monarch IUI V2] Linear trick play (FF/RW/Seek) leads to blank screen, device hang, followed by automatic reboot. Multiple critical processes (gmem, WPENetworkProce, WorkerPoolType: etc.) crash were observed.#197
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…eads to blank screen, device hang, followed by automatic reboot. Multiple critical processes (gmem, WPENetworkProce, WorkerPoolType: etc.) crash were observed.
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Pull request overview
This PR updates Widevine DRM key selection logic to better handle default key ID matching (including UUID string formats) and to avoid invalid map indexing that can lead to incorrect key selection during trick-play operations.
Changes:
- Add UUID (dashed string) → 16-byte binary conversion so
cencDatacan be matched against binary Key IDs parsed from PSSH. - Make
getKey()use map-safe lookup (find/begin) instead of assuming contiguous integer slots (e.g.,at(0)). - Improve fallback behavior and logging when the requested key slot is not found.
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sankarimuthu
approved these changes
Jul 21, 2026
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