scrcpy/doc/camera.md

Camera

Camera mirroring is supported for devices with Android 12 or higher.

To capture the camera instead of the device screen:

scrcpy --video-source=camera

By default, it automatically switches audio source to microphone (as if --audio-source=mic were also passed).

scrcpy --video-source=display  # default is --audio-source=output
scrcpy --video-source=camera   # default is --audio-source=mic
scrcpy --video-source=display --audio-source=mic    # force display AND microphone
scrcpy --video-source=camera --audio-source=output  # force camera AND device audio output

List

To list the cameras available (with their declared valid sizes and frame rates):

scrcpy --list-cameras
scrcpy --list-camera-sizes

Note that the sizes and frame rates are declarative. They are not accurate on all devices: some of them are declared but not supported, while some others are not declared but supported.

Selection

It is possible to pass an explicit camera id (as listed by --list-cameras):

scrcpy --video-source=camera --camera-id=0

Alternatively, the camera may be selected automatically:

scrcpy --video-source=camera                           # use the first camera
scrcpy --video-source=camera --camera-facing=front     # use the first front camera
scrcpy --video-source=camera --camera-facing=back      # use the first back camera
scrcpy --video-source=camera --camera-facing=external  # use the first external camera

If --camera-id is specified, then --camera-facing is forbidden (the id already determines the camera):

scrcpy --video-source=camera --camera-id=0 --camera-facing=front  # error

Size selection

It is possible to pass an explicit camera size:

scrcpy --video-source=camera --camera-size=1920x1080

The given size may be listed among the declared valid sizes (--list-camera-sizes), but may also be anything else (some devices support arbitrary sizes):

scrcpy --video-source=camera --camera-size=1840x444

Alternatively, a declared valid size (among the ones listed by list-camera-sizes) may be selected automatically.

Two constraints are supported:

• -m/--max-size (already used for display mirroring), for example -m1920;
• --camera-ar to specify an aspect ratio (<num>:<den>, <value> or sensor).

Some examples:

scrcpy --video-source=camera                          # use the greatest width and the greatest associated height
scrcpy --video-source=camera -m1920                   # use the greatest width not above 1920 and the greatest associated height
scrcpy --video-source=camera --camera-ar=4:3          # use the greatest size with an aspect ratio of 4:3 (+/- 10%)
scrcpy --video-source=camera --camera-ar=1.6          # use the greatest size with an aspect ratio of 1.6 (+/- 10%)
scrcpy --video-source=camera --camera-ar=sensor       # use the greatest size with the aspect ratio of the camera sensor (+/- 10%)
scrcpy --video-source=camera -m1920 --camera-ar=16:9  # use the greatest width not above 1920 and the closest to 16:9 aspect ratio

If --camera-size is specified, then -m/--max-size and --camera-ar are forbidden (the size is determined by the value given explicitly):

scrcpy --video-source=camera --camera-size=1920x1080 -m3000  # error

Frame rate

By default, camera is captured at Android's default frame rate (30 fps).

To configure a different frame rate:

scrcpy --video-source=camera --camera-fps=60

High speed capture

The Android camera API also supports a high speed capture mode.

This mode is restricted to specific resolutions and frame rates, listed by --list-camera-sizes.

scrcpy --video-source=camera --camera-size=1920x1080 --camera-fps=240

Brace expansion tip

All camera options start with --camera-, so if your shell supports it, you can benefit from brace expansion (for example, it is supported bash and zsh):

scrcpy --video-source=camera --camera-{facing=back,ar=16:9,high-speed,fps=120}

This will be expanded as:

scrcpy --video-source=camera --camera-facing=back --camera-ar=16:9 --camera-high-speed --camera-fps=120

Webcam

Combined with the V4L2 feature on Linux, the Android device camera may be used as a webcam on the computer.