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Converting an FEL file to Profile 8.1 strips away the 12-bit video expansion and retains only the 10-bit Base Layer paired with the RPU. For 99% of home theater setups, this is an acceptable compromise because standard streaming devices cannot utilize the 12-bit FEL data to begin with. However, some complex FEL titles can suffer from minor tone-mapping anomalies if converted blindly. Modern conversion tools now include safety filters to flag these specific titles. Method 1: The Automated Way (Using dovi_convert )
ffmpeg -i output_P8.hevc -i audio.mka -c copy final_P8.mkv convert dolby vision profile 7 to profile 8 new
What are you targeting (e.g., Nvidia Shield, Apple TV, internal TV app)? Converting an FEL file to Profile 8
First, you need to extract the HEVC video track from your MKV container. Modern conversion tools now include safety filters to
Limited strictly to licensed Blu-ray players and select SOCs. Widely supported (Apple TV, Plex, Infuse, Android TV).
This tool is an excellent automation script that wraps dovi_tool and ffmpeg into a simple command. It automates the entire workflow: demuxing the video streams, performing the RPU conversion, and remuxing the final MKV. It's designed for MEL files and will skip FEL files by default to prevent accidental quality loss.
# Step 2: Extract the RPU metadata from the HEVC stream # dovi_tool reads the stream and pulls out the RPU cmd_rpu = ["dovi_tool", "-m", "2", "extract-rpu", self.temp_hevc, "-o", self.temp_rpu] subprocess.run(cmd_rpu, check=True)