laleeroy

Some stock ROMs don't want you using audio logcat level 7 which is required for the audio logs... so for that? You'll need to root your stock ROM with something like Magisk and then use adb with these commands:

adb shell
su
stop
setprop sys.init_log_level 7
logcat -G 4M
start
exit

laleeroy

First you'll need to clone acdb_extract. I used the one by J510-Dev which is originally based on the one by luca020400.

git clone https://github.com/J510-Dev/acdb_extract

Then, as the README says you must generate the acdb header. For Qualcomm devices? The stock audio hal would be audio.primary.msm8996.so which is found on my stock ROM from /system/lib/hw/audio.primary.msm8996.so which I could just copy into the acdb_get folder... so for example, I'd use this:
./generate_acdb_data.sh audio.primary.msm8996.so

which will generate a file called acdb_data.h which is needed for the next step.

Since acdb_extract doesn't require being built in the AOSP environment? You can just build it using...

laleeroy

Create a dummy folder to Kang blobs like

device/dummy/dummy

Then copy proprietary-files.txt, extract-files.sh and setup-makefiles.sh from any device. A device that doesn't use a shared commonized device tree does make it easier.

Rename the stuff in the two .sh files to dummy as vendor and device name.

Update necessary proprietary-files in dunmy device tree for kang

laleeroy

Make sure the device's and/or commonized device proprietary-files are updated with the same blobs that you want in your proprietary vendor repo.

Next, to use the kang and section mode we need the switches "-k -s". -k tells extract-files to only kang/pull updated blobs without deleting any blobs. -s tells it to only update ones from a commented section of your proprietary-files.

for example, if i have this in my proprietary-files

# ADSP - from oneplus3t - OnePlus/OnePlus3/OnePlus3T:9/PKQ1.181203.001/1911042108 - OOS 9.0.6
vendor/lib/libadsp_hvx_callback_skel.so
vendor/lib/libadsp_hvx_stub.so