# Run multimedia sample applications

Source: [https://docs.qualcomm.com/doc/80-70020-50/topic/multimedia-sample-applications.html](https://docs.qualcomm.com/doc/80-70020-50/topic/multimedia-sample-applications.html)

The multimedia sample applications provide custom use cases that realize the camera,
        video, audio, graphics, and display capabilities of Qualcomm Linux.

Note: For camera and video sample applications that require a YUV
            player, see [Sourceforge YUV player project](https://sourceforge.net/projects/raw-yuvplayer/).

## Troubleshooting

- **Camera**: For any application, if the camera service doesn't work or fails
                    during execution, see [Camera troubleshooting](https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-17/troubleshooting.html) to restart
                    it.
- **Display**: If you face issues with the display, run the following command
                    in the terminal of the target device to configure the
                    display:

        export XDG_RUNTIME_DIR=/dev/socket/weston && export WAYLAND_DISPLAY=wayland-1 && weston --continue-without-inputCopy to clipboard
- **Audio**: If you face issues in recording the audio, run the following
                    command in the terminal of the target
                    device:

        pactl set-default-source pal_source_speaker_micCopy to clipboard

## See also

- [Camera Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-17/camera-overview.html)
- [Video Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-20/overview.html)
- [Audio Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-16/overview.html)

- **[Run sample applications for a camera](https://docs.qualcomm.com/doc/80-70020-50/topic/camera-sample-applications.html)**  

The camera sample applications provide custom use cases for single stream and         multistream scenarios, previews and snapshots, dynamic updates to configurations and         properties, and various other capabilities of the Qualcomm Linux camera.
- **[Run sample applications for video and audio](https://docs.qualcomm.com/doc/80-70020-50/topic/audio-sample-applications.html)**  

The sample applications for the Qualcomm Linux video engine provide custom use cases         for video playback, encoding, decoding, transforming, transcoding, and composition. The         audio use cases show the custom use cases for playback and recording of the audio files in         different formats, in addition to various other capabilities of the Qualcomm Linux         audio.

**Parent Topic:** [Sample applications](https://docs.qualcomm.com/doc/80-70020-50/topic/example-applications.html)

Last Published: Jan 30, 2026

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