Reading mmaped buffer in JNI without using fast message queue

[SDTVBLR]

Hi Everyone,

I have a device which generate video and audio data.
We have implemented a custom data source for Exoplayer to read the AV data.
Now, we are reading the data from kernel buffer to fast message queue.
Then, we are copying it from FMQ to JNI (java buffer).
This inturn is read in to player's buffer, when the player performs a read.
But, we want to improve it's performance.

We have implemented a mmap interface for the driver from which we get direct access(virtual address) to kernel buffer.
Is there a way to access/copy from mmaped kernel buffer directly to JNI buffer without using FMQ.
I couldn't find any such interface in HIDL implementation site.

Thanks & Regards,
Sooraj

 

[JessicaBower]

Hi! I am wondering which device are you using? I need something that will organize all the video and audio data for my team? We need to create something like a virtual media library that can be shared only among employees. BTW, can someone recommend any apps to organize long-distance work online?

 

[AlRoss0908]

I work in media production, and our main task is creating short animated videos. Obviously, we have a huge library of different media files. After the lockdown, some of the employees now work permanently from home, but they need online access to those files. We want everything to be organized and easy to find, so we are also looking for software that can help us with this. We also created some sort of virtual office for our organization. I should say that virtual addresses helped us a lot to organize our work on the national scale since we have offices in different states. Somehow, we do not have this mess with mails and packages.