# Audio-video use cases

Source: [https://docs.qualcomm.com/doc/80-70015-50/topic/audio-video-use-cases.html](https://docs.qualcomm.com/doc/80-70015-50/topic/audio-video-use-cases.html)

The audio-video (AV) use cases show AV capture and AV playback.

Before you run the use cases, ensure that you complete the preconditions mentioned in
                [Multimedia use cases](https://docs.qualcomm.com/doc/80-70015-50/topic/multimedia-use-cases.html).

- **[Audio-video playback](https://docs.qualcomm.com/doc/80-70015-50/topic/audio-video-playback.html)**  

The pipeline shows an AV playback use case where the MP4 file is demultiplexed. The         video stream is decoded and sent to display. The audio stream is decoded and sent to the         speaker.
- **[Audio-video capture (H.264 video codec + MP3 audio codec)](https://docs.qualcomm.com/doc/80-70015-50/topic/audio-video-capture.html)**  

The pipeline shows the AV capture use case where a 1080p stream is taken from a         camera, encoded as an H.264 stream, and sent to a multiplexer. The PCM `opt`         is taken from an audio source, encoded as MP3, and sent to the multiplexer. The multiplexed         files are then saved as an MP4 file.

**Parent Topic:** [Multimedia use cases](https://docs.qualcomm.com/doc/80-70015-50/topic/multimedia-use-cases.html)

Last Published: Oct 27, 2025

[Previous Topic
Audio (only) playback](https://docs.qualcomm.com/bundle/publicresource/80-70015-50/topics/audio-only-playback.md) [Next Topic
Audio-video playback](https://docs.qualcomm.com/bundle/publicresource/80-70015-50/topics/audio-video-playback.md)