Roku Family All Sub Convert Audio Conform Pack¶

This pack provides explicit Roku-oriented HD and 4K delivery lanes with delivery-friendly subtitle/audio handling.

Outcome Target¶

target broad Roku playback success without using a vague open-video umbrella
use H.264 for HD delivery and HEVC for UHD delivery
preserve all subtitles first, but convert text subtitles when MP4-safe delivery is possible

Focus¶

Roku family-specific output envelopes
fragmented MP4 preferred, MKV fallback when subtitle/audio safety requires it
audio_conform for DTS-family and PCM-family sources
optional video-only aggressive_vmaf

Covered Device Baselines¶

Profile	Current device baseline	Notes
`roku_family_hd_all_sub_convert_audio_conform`	Roku Express 1080-class devices	Conservative HD Roku baseline
`roku_family_4k_all_sub_convert_audio_conform`	Roku 4K-class devices	Conservative UHD Roku baseline

If more Roku models diverge materially later, we should split them into another profile rather than pretending one shared envelope fits everything forever.

Included Profiles¶

Pack Flow¶

flowchart TD classDef stage fill:#e0f2fe,stroke:#0284c7,color:#0c4a6e,stroke-width:1.2px; classDef gate fill:#fff7ed,stroke:#f59e0b,color:#7c2d12,stroke-width:1.5px; classDef output fill:#dcfce7,stroke:#16a34a,color:#14532d,stroke-width:1.2px; A[Candidate media]:::stage --> B{Matches Roku HD envelope?}:::gate B -->|Yes| C[roku_family_hd_all_sub_convert_audio_conform]:::stage B -->|No| D{Matches Roku 4K envelope?}:::gate D -->|Yes| E[roku_family_4k_all_sub_convert_audio_conform]:::stage D -->|No| F[Handled by other profile or skipped]:::stage C --> G[Profile output written]:::output E --> H[Profile output written]:::output