Dolby Atmos (Specifically Transformers) question

[ClemsonJeeper]

I have downloaded and built the latest 1.9.1 of MakeMKV for Linux. When I pop in my Transformers: Age of Extinction Blu Ray, I get two Audio tracks, both labeled "DD Surround 5.1 English".



I don't see a TruHD stream with Atmos like I would expect. Am I missing something?

[ClemsonJeeper]

Any non spammers have any ideas?

[ClemsonJeeper]

For what its worth, I tried the Windows version of MakeMKV and the TrueHD track showed up. Does the Linux version 1.9.1 not support TrueHD tracks?

[ndjamena]

I case you hadn't noticed, your video track has an audio track child, which quite simply isn't possible.

Since you're using Linux, I suggest you download the correct libraries and rebuild the program from scratch.

[Woodstock]

If I remember correctly, there is a special library needed to process ATMOS audio. It's not required, though.

Found it:

Code: Select all

On Linux, you must compile with the latest ffmpeg from snapshot in order to get Atmos support. Building MakeMKV with latest released ffmpeg will not work.

[ClemsonJeeper]

Yeah, really weird.

I followed the directions word for word for installing under Ubuntu Linux, rebuilt from scratch - same thing.

I ended up moving the blu ray drive to my windows desktop, I'll just rip from there...

thanks

[xbmcuser]

Just to make sure if someone else comes across this the proper way to do this is following:
1) If applicable make sure you first remove both preconfigured makemkv-bin makemkv-oss directories if you are installing same version, in other words delete preconfigured then uncompress new directories to configure
> Step 1 is very important, if installing same version and if you omit it and follow steps below you will NOT compile with necessary libraries to see TrueHD

2) I choose to follow uninstall instructions here
> http://www.makemkv.com/forum2/viewtopic.php?f=3&t=3924
# Remove the config files
rm -fr ~/.MakeMKV
# Remove the actual program
sudo rm /usr/bin/makemkv
sudo rm /usr/bin/makemkvcon
> Not sure if 100% necessary but these are my steps

3) Follow the install guide here for Linux
> http://www.makemkv.com/forum2/viewtopic.php?f=3&t=224
> First do this part OPTIONAL: Building with latest libavcodec.
> I chose the 2nd configure option
> ./configure --prefix=/tmp/ffmpeg --enable-static --disable-shared --enable-pic --disable-yasm --enable-libfdk-aac
> If you get an error saying something like > libfdk_aac not found then do following:
sudo apt-get install libfdk-aac0 libfdk-aac1 libfdk-aac-dev
> I found I needed all three for it to work

4) Build makemkv-oss under the OPTIONAL section

5) Build makemkv-bin as normal

If configured correctly you will have to accept makemkv license agreement. You may have to reenter your registration code.

Hope this helps.

[taylorwmj]

> If you get an error saying something like > libfdk_aac not found then do following:
sudo apt-get install libfdk-aac0 libfdk-aac1 libfdk-aac-dev
> I found I needed all three for it to work

I had 2 issues with this...
1. libfdk-aac1 doesn't appear to exist; any help on how to download this?

2. even without libfdk-aac1, I still get the libfdk_aac not found error in red.