Alex Luccisano af77628900 frontend: Fix null settings and DBR for custom configs ...

When using custom RTMP output with a JSON config that omits
encoder settings, settings.dump() produces "null" which
obs_data_create_from_json cannot parse. Fall back to
obs_data_create() for null/non-object settings so encoders
use their defaults.

Additionally, when bitrate_interpolation_points is absent,
the code unconditionally set interpolation_table_data as
empty arrays. This caused build_dbr_interpolation_table to
wipe the default linear table, leaving DBR enabled but
unable to adjust bitrates during congestion. Only set the
interpolation data when all encoders provide it, otherwise
fall back to the default linear 0-to-max interpolation.

2026-06-05 14:11:55 -04:00

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