scrcpy/doc/recording.md

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# Recording
To record video and audio streams while mirroring:
```bash
scrcpy --record=file.mp4
scrcpy -r file.mkv
```
To record only the video:
```bash
scrcpy --no-audio --record=file.mp4
```
To record only the audio:
```bash
scrcpy --no-video --record=file.opus
scrcpy --no-video --audio-codec=aac --record-file=file.aac
# .m4a/.mp4 and .mka/.mkv are also supported for both opus and aac
```
To disable playback while recording:
```bash
scrcpy --no-playback --record=file.mp4
scrcpy -Nr file.mkv
# interrupt recording with Ctrl+C
```
Timestamps are captured on the device, so [packet delay variation] does not
impact the recorded file, which is always clean (only if you use `--record` of
course, not if you capture your scrcpy window and audio output on the computer).
[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
The video and audio streams are encoded on the device, but are muxed on the
client side. Two formats (containers) are supported:
- Matroska (`.mkv`)
- MP4 (`.mp4`)
The container is automatically selected based on the filename.
It is also possible to explicitly select a container (in that case the filename
needs not end with `.mkv` or `.mp4`):
```
scrcpy --record=file --record-format=mkv
```