Skip to content

Enable HEVC hardware decoding on Balena #2536

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
renatgalimov wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Enable HEVC hardware decoding on Balena #2536

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions docker-compose.balena.yml.tmpl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,8 @@ services:
extra_hosts:
- "host.docker.internal:host-gateway"
privileged: true
devices:
- "/dev/dri:/dev/dri"
restart: always
shm_size: ${SHM_SIZE}
volumes:
Expand Down
25 changes: 25 additions & 0 deletions docs/balena-fleet-deployment.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,31 @@ $ balena env add BALENA_HOST_CONFIG_gpu_mem $GPU_MEM_VALUE --fleet $FLEET_NAME
$ balena env add BALENA_HOST_CONFIG_dtoverlay vc4-kms-v3d --fleet $FLEET_NAME
```

If you plan to play HEVC/H.265 videos, add the Raspberry Pi HEVC V4L2 overlay so
that the kernel exposes the hardware decoder nodes to the containers:

```bash
$ balena env add BALENA_HOST_CONFIG_dtoverlay 'vc4-kms-v3d,rpivid-v4l2' --fleet $FLEET_NAME
```

> [!NOTE]
> When you set the value again with the command above, balenaCloud will update
> the existing `BALENA_HOST_CONFIG_dtoverlay` entry instead of creating a new
> one. You can also edit it from the dashboard and append `,rpivid-v4l2`
> manually.

After the device reboots with the updated device tree overlays, the
`anthias-viewer` service automatically maps `/dev/dri` inside the container. You
can verify the kernel nodes are present by opening a shell on the device and
running the following command:

```bash
$ balena ssh $DEVICE_HOSTNAME "ls /dev/dri /dev/video1[0-1]"
```

Seeing the DRM and V4L2 nodes confirms the HEVC decoder is available to the
containerised video player.

If your display does have overscan issues like having a black border around the
screen, you can disable overscan by running the following command:

Expand Down