Only a few players (e.g., CoreELEC on AM6B+, certain LG TVs with custom firmware) support it.
Profile 8.1 solves this. It strips away the heavy dual-layer architecture, extracts the RPU data, and injects it cleanly back into the HDR10 Base Layer. Your media player reads a single, highly compatible video track while still recognizing the frame-by-frame Dolby Vision metadata. Important Safety Check: MEL vs. FEL
Input parser/demuxer
Use dovi_tool to convert the dual-layer Profile 7 stream into a single-layer Profile 8 stream. This command removes the enhancement layer and rewrites the RPU metadata to Profile 8 specs. convert dolby vision profile 7 to profile 8 new
Run dovi_tool to read the raw HEVC stream, extract the Dolby Vision RPU (Reference Processing Unit), and convert it to Profile 8. Profile 8.1 is recommended because it maintains backwards compatibility with standard HDR10 displays. dovi_tool -m 2 extract-rpu raw_video.hevc -o RPU.bin Use code with caution.
ffmpeg -i input.mkv -c:v copy -vbsf hevc_mp4toannexb -f hevc - | dovi_tool -m 2 convert --discard - Use code with caution. Copied to clipboard
When converting, you will see references to Profile 8 variants (8.1, 8.2, 8.4). Only a few players (e
Note: Do not use GUI "all-in-one" converters. They are often outdated. We will use the command line for precision.
The exact same dynamic metadata found in Profile 7, directly embedded into the main video bitstream.
If your source is a MEL file, the conversion is in terms of picture quality. The EL track essentially contains nothing more than the RPU, which is the heart of the Dolby Vision experience. The conversion simply extracts the RPU from the EL and merges it directly with the BL, creating a standard BL+RPU Profile 8.1 file. The result is a Profile 8.1 file visually identical to the original. Your media player reads a single, highly compatible
Now go enjoy your converted library in full, working Dolby Vision.
For those managing a large library, manual conversion is impractical. New automation solutions are designed to integrate directly into your media server's workflow.
Before converting your library, you must understand the two variations of Profile 7 found on UHD Blu-rays: