# Audio-video use cases

Source: [https://docs.qualcomm.com/doc/80-70014-50/topic/audio-video-use-cases.html](https://docs.qualcomm.com/doc/80-70014-50/topic/audio-video-use-cases.html)

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

Before you begin executing the use cases, ensure that you complete the preconditions
            mentioned in [Multimedia use cases](https://docs.qualcomm.com/doc/80-70014-50/topic/multimedia-use-cases.html).

- **[Audio-video playback](https://docs.qualcomm.com/doc/80-70014-50/topic/audio-video-playback.html)**  

The pipeline shows an audio-video (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 speaker.
- **[Audio-video capture (H.264 video codec + MP3 Audio codec)](https://docs.qualcomm.com/doc/80-70014-50/topic/audio-video-capture.html)**  

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

**Parent Topic:** [Multimedia use cases](https://docs.qualcomm.com/doc/80-70014-50/topic/multimedia-use-cases.html)

Last Published: Oct 27, 2025

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