[Feature request] Put files needed for the muxing to TS step of the 4-3 workflow (ST-DL -> DT-DL) in the temporary folder

[ceedveed]

During the TS 4-3 workflow, the step for muxing to TS puts the THD+AC3, BL.hevc, and EL.hevc files in the output folder in order to build the output .TS file. This results in reading the temporary files and writing the TS file on the same drive, which can slow down the process due to simultaneous reads and writes on the same drive.

Is it possible to put these temporary files needed for muxing in the temporary folder? Users can set the temporary folder to a drive different than the output drive, which can speed up the 4-3 workflow.

[R3S3t9999]

It wouldn’t be faster, at least not with the script's default mode, which doesn't use ffmpeg piping.

The script first demuxes the ST HEVC into the temp folder, which can be located on a different drive and helps speed up that stage of the process. After that, the BL, EL, and THD tracks are demuxed to the output path and then muxed together.

If I also move the BL, EL, and THD demuxing to the temp folder, the bottleneck simply shifts: the BL/EL demuxing itself becomes slower, resulting in no overall performance gain.

[ceedveed]

I see thanks for the explanation! My DoVi_Scripts settings configure the output folder on the same HDD as all the rest of the .TS files, so that it's an instant move from one folder to another folder of the same HDD. However, the temporary folder is configured on an SSD.

Would demuxing the BL, EL, and THD tracks to the same temporary folder on an SSD and muxing to the output folder on an HDD be faster overall? I assume most users are using temp folders on an SSD to speed up the process.