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quietvoid / dovi_tool

dovi_tool is a CLI tool combining multiple utilities for working with Dolby Vision.
MIT License
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Request: Print out the crop values for the active area offsets #280

Closed Dendraspis closed 8 months ago

Dendraspis commented 8 months ago

Hello quietvoid,

when using the --crop/-c parameter when extracting the rpu data like so: ffmpeg.exe -i "Hybrid HDR10Plus DV Sample.mkv" -an -sn -dn -c:v copy -bsf:v hevc_mp4toannexb -f hevc - | dovi_tool.exe -m 2 -c extract-rpu - -o "RPU.bin" ...the only information provided is: Reordering metadata... Done.

It would be nice and useful to get information about the crop values, so they can be used for further processing. Something like:

Reordering metadata... 
Offsets were cropped by: left=0, right=0, top=276, bottom=276
Done.

In this context I have also a question: Where does dovi_tool take the values, to crop the offsets, from or how are they calculated?

quietvoid commented 8 months ago

It's an extract operation and not meant to show any info. Use the appropriate subcommand to get offsets info:

dovi_tool export -i RPU.bin -d level5

Where does dovi_tool take the values, to crop the offsets, from or how are they calculated?

There's no calculation, --crop simply sets the L5 metadata to all zeros.

Dendraspis commented 8 months ago

Okay, thanks anyway.

There's no calculation, --crop simply sets the L5 metadata to all zeros.

That was actually pretty helpful, thank you.