Convert Dolby Vision Profile 7 To Profile 8 New May 2026

The Core Concept

• Profile 7 (P7): Used on 4K Blu-rays. Has a 10-bit HDR10 base layer + a 2nd “enhancement” layer (EL, often 1080p, 10‑ or 12‑bit). This EL is required for full Dolby Vision reconstruction.
• Profile 8 (P8.1): A single‑layer, 10‑bit or 12‑bit stream (no separate EL). Widely supported by streaming services, many TVs (LG, Sony, Hisense), media players (Shield TV, Ugoos AM6B+), and software players (Infuse, Plex, VLC). P8.1 carries full dynamic metadata, but discards the enhancement layer’s spatial info.
• Profile 8.4: Used for Blu‑ray backups with the EL merged into a single 12‑bit stream (P8.4 is not officially standard but is emerging via tools like dovi_tool). Best quality for playback on capable devices.

The Processing Pipeline

1. Demux: Split the input video into the raw HEVC stream and the RPU metadata.
2. Filter: Remove the Enhancement Layer (EL) data. In P7, the EL is useless for P8 displays.
3. Convert: Re-encode the RPU header to identify as Profile 8.
4. Mux: Combine the clean Base Layer video with the converted RPU.

Step-by-Step (command line example)

# 1. Extract the RPU from Profile 7 (P7) MKV/TS
dovi_tool -m 2 extract-rpu input.hevc
Part 3: What You Need (Software)
Before starting, download these open-source tools (Windows/Mac/Linux):

dovi_tool (v2.1.0 or newer) – The Swiss army knife for Dolby Vision.
mkvtoolnix (v82 or newer) – For muxing/demuxing MKV files.
ffmpeg – For extracting the raw video track.

Note: Do not use GUI "all-in-one" converters. They are often outdated. We will use the command line for precision. convert dolby vision profile 7 to profile 8 new