816 lines
21 KiB
Markdown
816 lines
21 KiB
Markdown
# scrcpy (v1.17)
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[Read in another language](#translations)
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This application provides display and control of Android devices connected on
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USB (or [over TCP/IP][article-tcpip]). It does not require any _root_ access.
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It works on _GNU/Linux_, _Windows_ and _macOS_.
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It focuses on:
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- **lightness** (native, displays only the device screen)
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- **performance** (30~60fps)
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- **quality** (1920×1080 or above)
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- **low latency** ([35~70ms][lowlatency])
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- **low startup time** (~1 second to display the first image)
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- **non-intrusiveness** (nothing is left installed on the device)
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[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
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## Requirements
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The Android device requires at least API 21 (Android 5.0).
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Make sure you [enabled adb debugging][enable-adb] on your device(s).
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[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
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On some devices, you also need to enable [an additional option][control] to
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control it using keyboard and mouse.
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[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
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## Get the app
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<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
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### Summary
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- Linux: `apt install scrcpy`
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- Windows: [download][direct-win64]
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- macOS: `brew install scrcpy`
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Build from sources: [BUILD]
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### Linux
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On Debian (_testing_ and _sid_ for now) and Ubuntu (20.04):
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```
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apt install scrcpy
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```
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A [Snap] package is available: [`scrcpy`][snap-link].
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[snap-link]: https://snapstats.org/snaps/scrcpy
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[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
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For Fedora, a [COPR] package is available: [`scrcpy`][copr-link].
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[COPR]: https://fedoraproject.org/wiki/Category:Copr
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[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
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For Arch Linux, an [AUR] package is available: [`scrcpy`][aur-link].
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[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
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[aur-link]: https://aur.archlinux.org/packages/scrcpy/
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For Gentoo, an [Ebuild] is available: [`scrcpy/`][ebuild-link].
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[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
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[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
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You could also [build the app manually][BUILD] (don't worry, it's not that
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hard).
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### Windows
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For Windows, for simplicity, a prebuilt archive with all the dependencies
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(including `adb`) is available:
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- [`scrcpy-win64-v1.17.zip`][direct-win64]
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_(SHA-256: 8b9e57993c707367ed10ebfe0e1ef563c7a29d9af4a355cd8b6a52a317c73eea)_
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[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.17/scrcpy-win64-v1.17.zip
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It is also available in [Chocolatey]:
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[Chocolatey]: https://chocolatey.org/
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```bash
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choco install scrcpy
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choco install adb # if you don't have it yet
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```
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And in [Scoop]:
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```bash
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scoop install scrcpy
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scoop install adb # if you don't have it yet
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```
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[Scoop]: https://scoop.sh
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You can also [build the app manually][BUILD].
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### macOS
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The application is available in [Homebrew]. Just install it:
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[Homebrew]: https://brew.sh/
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```bash
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brew install scrcpy
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```
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You need `adb`, accessible from your `PATH`. If you don't have it yet:
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```bash
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# Homebrew >= 2.6.0
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brew install --cask android-platform-tools
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# Homebrew < 2.6.0
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brew cask install android-platform-tools
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```
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You can also [build the app manually][BUILD].
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## Run
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Plug an Android device, and execute:
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```bash
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scrcpy
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```
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It accepts command-line arguments, listed by:
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```bash
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scrcpy --help
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```
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## Features
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### Capture configuration
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#### Reduce size
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Sometimes, it is useful to mirror an Android device at a lower definition to
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increase performance.
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To limit both the width and height to some value (e.g. 1024):
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```bash
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scrcpy --max-size 1024
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scrcpy -m 1024 # short version
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```
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The other dimension is computed to that the device aspect ratio is preserved.
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That way, a device in 1920×1080 will be mirrored at 1024×576.
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#### Change bit-rate
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The default bit-rate is 8 Mbps. To change the video bitrate (e.g. to 2 Mbps):
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```bash
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scrcpy --bit-rate 2M
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scrcpy -b 2M # short version
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```
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#### Limit frame rate
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The capture frame rate can be limited:
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```bash
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scrcpy --max-fps 15
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```
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This is officially supported since Android 10, but may work on earlier versions.
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#### Crop
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The device screen may be cropped to mirror only part of the screen.
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This is useful for example to mirror only one eye of the Oculus Go:
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```bash
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scrcpy --crop 1224:1440:0:0 # 1224x1440 at offset (0,0)
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```
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If `--max-size` is also specified, resizing is applied after cropping.
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#### Lock video orientation
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To lock the orientation of the mirroring:
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```bash
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scrcpy --lock-video-orientation 0 # natural orientation
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scrcpy --lock-video-orientation 1 # 90° counterclockwise
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scrcpy --lock-video-orientation 2 # 180°
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scrcpy --lock-video-orientation 3 # 90° clockwise
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```
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This affects recording orientation.
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The [window may also be rotated](#rotation) independently.
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#### Encoder
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Some devices have more than one encoder, and some of them may cause issues or
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crash. It is possible to select a different encoder:
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```bash
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scrcpy --encoder OMX.qcom.video.encoder.avc
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```
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To list the available encoders, you could pass an invalid encoder name, the
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error will give the available encoders:
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```bash
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scrcpy --encoder _
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```
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### Recording
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It is possible to record the screen while mirroring:
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```bash
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scrcpy --record file.mp4
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scrcpy -r file.mkv
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```
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To disable mirroring while recording:
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```bash
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scrcpy --no-display --record file.mp4
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scrcpy -Nr file.mkv
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# interrupt recording with Ctrl+C
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```
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"Skipped frames" are recorded, even if they are not displayed in real time (for
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performance reasons). Frames are _timestamped_ on the device, so [packet delay
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variation] does not impact the recorded file.
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[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
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### Connection
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#### Wireless
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_Scrcpy_ uses `adb` to communicate with the device, and `adb` can [connect] to a
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device over TCP/IP:
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1. Connect the device to the same Wi-Fi as your computer.
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2. Get your device IP address, in Settings → About phone → Status, or by
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executing this command:
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```bash
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adb shell ip route | awk '{print $9}'
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```
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3. Enable adb over TCP/IP on your device: `adb tcpip 5555`.
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4. Unplug your device.
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5. Connect to your device: `adb connect DEVICE_IP:5555` _(replace `DEVICE_IP`)_.
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6. Run `scrcpy` as usual.
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It may be useful to decrease the bit-rate and the definition:
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```bash
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scrcpy --bit-rate 2M --max-size 800
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scrcpy -b2M -m800 # short version
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```
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[connect]: https://developer.android.com/studio/command-line/adb.html#wireless
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#### Multi-devices
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If several devices are listed in `adb devices`, you must specify the _serial_:
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```bash
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scrcpy --serial 0123456789abcdef
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scrcpy -s 0123456789abcdef # short version
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```
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If the device is connected over TCP/IP:
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```bash
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scrcpy --serial 192.168.0.1:5555
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scrcpy -s 192.168.0.1:5555 # short version
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```
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You can start several instances of _scrcpy_ for several devices.
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#### Autostart on device connection
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You could use [AutoAdb]:
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```bash
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autoadb scrcpy -s '{}'
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```
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[AutoAdb]: https://github.com/rom1v/autoadb
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#### SSH tunnel
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To connect to a remote device, it is possible to connect a local `adb` client to
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a remote `adb` server (provided they use the same version of the _adb_
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protocol):
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```bash
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adb kill-server # kill the local adb server on 5037
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ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
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# keep this open
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```
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From another terminal:
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```bash
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scrcpy
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```
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To avoid enabling remote port forwarding, you could force a forward connection
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instead (notice the `-L` instead of `-R`):
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```bash
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adb kill-server # kill the local adb server on 5037
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ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
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# keep this open
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```
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From another terminal:
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```bash
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scrcpy --force-adb-forward
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```
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Like for wireless connections, it may be useful to reduce quality:
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```
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scrcpy -b2M -m800 --max-fps 15
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```
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### Window configuration
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#### Title
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By default, the window title is the device model. It can be changed:
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```bash
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scrcpy --window-title 'My device'
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```
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#### Position and size
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The initial window position and size may be specified:
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```bash
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scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
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```
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#### Borderless
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To disable window decorations:
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```bash
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scrcpy --window-borderless
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```
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#### Always on top
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To keep the scrcpy window always on top:
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```bash
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scrcpy --always-on-top
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```
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#### Fullscreen
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The app may be started directly in fullscreen:
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```bash
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scrcpy --fullscreen
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scrcpy -f # short version
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```
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Fullscreen can then be toggled dynamically with <kbd>MOD</kbd>+<kbd>f</kbd>.
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#### Rotation
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The window may be rotated:
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```bash
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scrcpy --rotation 1
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```
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Possibles values are:
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- `0`: no rotation
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- `1`: 90 degrees counterclockwise
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- `2`: 180 degrees
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- `3`: 90 degrees clockwise
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The rotation can also be changed dynamically with <kbd>MOD</kbd>+<kbd>←</kbd>
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_(left)_ and <kbd>MOD</kbd>+<kbd>→</kbd> _(right)_.
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Note that _scrcpy_ manages 3 different rotations:
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- <kbd>MOD</kbd>+<kbd>r</kbd> requests the device to switch between portrait
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and landscape (the current running app may refuse, if it does not support the
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requested orientation).
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- [`--lock-video-orientation`](#lock-video-orientation) changes the mirroring
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orientation (the orientation of the video sent from the device to the
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computer). This affects the recording.
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- `--rotation` (or <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
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rotates only the window content. This affects only the display, not the
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recording.
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### Other mirroring options
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#### Read-only
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To disable controls (everything which can interact with the device: input keys,
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mouse events, drag&drop files):
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```bash
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scrcpy --no-control
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scrcpy -n
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```
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#### Display
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If several displays are available, it is possible to select the display to
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mirror:
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```bash
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scrcpy --display 1
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```
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The list of display ids can be retrieved by:
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```
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adb shell dumpsys display # search "mDisplayId=" in the output
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```
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The secondary display may only be controlled if the device runs at least Android
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10 (otherwise it is mirrored in read-only).
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#### Stay awake
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To prevent the device to sleep after some delay when the device is plugged in:
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```bash
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scrcpy --stay-awake
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scrcpy -w
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```
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The initial state is restored when scrcpy is closed.
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#### Turn screen off
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It is possible to turn the device screen off while mirroring on start with a
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command-line option:
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```bash
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scrcpy --turn-screen-off
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scrcpy -S
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```
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Or by pressing <kbd>MOD</kbd>+<kbd>o</kbd> at any time.
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To turn it back on, press <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
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On Android, the `POWER` button always turns the screen on. For convenience, if
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`POWER` is sent via scrcpy (via right-click or <kbd>MOD</kbd>+<kbd>p</kbd>), it
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will force to turn the screen off after a small delay (on a best effort basis).
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The physical `POWER` button will still cause the screen to be turned on.
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It can also be useful to prevent the device from sleeping:
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```bash
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scrcpy --turn-screen-off --stay-awake
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scrcpy -Sw
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```
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#### Render expired frames
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By default, to minimize latency, _scrcpy_ always renders the last decoded frame
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available, and drops any previous one.
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To force the rendering of all frames (at a cost of a possible increased
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latency), use:
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```bash
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scrcpy --render-expired-frames
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```
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#### Show touches
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For presentations, it may be useful to show physical touches (on the physical
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device).
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Android provides this feature in _Developers options_.
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_Scrcpy_ provides an option to enable this feature on start and restore the
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initial value on exit:
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```bash
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scrcpy --show-touches
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scrcpy -t
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```
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Note that it only shows _physical_ touches (with the finger on the device).
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#### Disable screensaver
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By default, scrcpy does not prevent the screensaver to run on the computer.
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To disable it:
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```bash
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scrcpy --disable-screensaver
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```
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### Input control
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#### Rotate device screen
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Press <kbd>MOD</kbd>+<kbd>r</kbd> to switch between portrait and landscape
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modes.
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Note that it rotates only if the application in foreground supports the
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requested orientation.
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#### Copy-paste
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Any time the Android clipboard changes, it is automatically synchronized to the
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computer clipboard.
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Any <kbd>Ctrl</kbd> shortcut is forwarded to the device. In particular:
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- <kbd>Ctrl</kbd>+<kbd>c</kbd> typically copies
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- <kbd>Ctrl</kbd>+<kbd>x</kbd> typically cuts
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- <kbd>Ctrl</kbd>+<kbd>v</kbd> typically pastes (after computer-to-device
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clipboard synchronization)
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This typically works as you expect.
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The actual behavior depends on the active application though. For example,
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_Termux_ sends SIGINT on <kbd>Ctrl</kbd>+<kbd>c</kbd> instead, and _K-9 Mail_
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composes a new message.
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To copy, cut and paste in such cases (but only supported on Android >= 7):
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- <kbd>MOD</kbd>+<kbd>c</kbd> injects `COPY`
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- <kbd>MOD</kbd>+<kbd>x</kbd> injects `CUT`
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- <kbd>MOD</kbd>+<kbd>v</kbd> injects `PASTE` (after computer-to-device
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clipboard synchronization)
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In addition, <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> allows to inject the
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computer clipboard text as a sequence of key events. This is useful when the
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component does not accept text pasting (for example in _Termux_), but it can
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break non-ASCII content.
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**WARNING:** Pasting the computer clipboard to the device (either via
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<kbd>Ctrl</kbd>+<kbd>v</kbd> or <kbd>MOD</kbd>+<kbd>v</kbd>) copies the content
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into the device clipboard. As a consequence, any Android application could read
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its content. You should avoid to paste sensitive content (like passwords) that
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way.
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Some devices do not behave as expected when setting the device clipboard
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programmatically. An option `--legacy-paste` is provided to change the behavior
|
||
of <kbd>Ctrl</kbd>+<kbd>v</kbd> and <kbd>MOD</kbd>+<kbd>v</kbd> so that they
|
||
also inject the computer clipboard text as a sequence of key events (the same
|
||
way as <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>).
|
||
|
||
#### Pinch-to-zoom
|
||
|
||
To simulate "pinch-to-zoom": <kbd>Ctrl</kbd>+_click-and-move_.
|
||
|
||
More precisely, hold <kbd>Ctrl</kbd> while pressing the left-click button. Until
|
||
the left-click button is released, all mouse movements scale and rotate the
|
||
content (if supported by the app) relative to the center of the screen.
|
||
|
||
Concretely, scrcpy generates additional touch events from a "virtual finger" at
|
||
a location inverted through the center of the screen.
|
||
|
||
|
||
#### Text injection preference
|
||
|
||
There are two kinds of [events][textevents] generated when typing text:
|
||
- _key events_, signaling that a key is pressed or released;
|
||
- _text events_, signaling that a text has been entered.
|
||
|
||
By default, letters are injected using key events, so that the keyboard behaves
|
||
as expected in games (typically for WASD keys).
|
||
|
||
But this may [cause issues][prefertext]. If you encounter such a problem, you
|
||
can avoid it by:
|
||
|
||
```bash
|
||
scrcpy --prefer-text
|
||
```
|
||
|
||
(but this will break keyboard behavior in games)
|
||
|
||
[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
|
||
[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
|
||
|
||
|
||
#### Key repeat
|
||
|
||
By default, holding a key down generates repeated key events. This can cause
|
||
performance problems in some games, where these events are useless anyway.
|
||
|
||
To avoid forwarding repeated key events:
|
||
|
||
```bash
|
||
scrcpy --no-key-repeat
|
||
```
|
||
|
||
|
||
#### Right-click and middle-click
|
||
|
||
By default, right-click triggers BACK (or POWER on) and middle-click triggers
|
||
HOME. To disable these shortcuts and forward the clicks to the device instead:
|
||
|
||
```bash
|
||
scrcpy --forward-all-clicks
|
||
```
|
||
|
||
|
||
### File drop
|
||
|
||
#### Install APK
|
||
|
||
To install an APK, drag & drop an APK file (ending with `.apk`) to the _scrcpy_
|
||
window.
|
||
|
||
There is no visual feedback, a log is printed to the console.
|
||
|
||
|
||
#### Push file to device
|
||
|
||
To push a file to `/sdcard/` on the device, drag & drop a (non-APK) file to the
|
||
_scrcpy_ window.
|
||
|
||
There is no visual feedback, a log is printed to the console.
|
||
|
||
The target directory can be changed on start:
|
||
|
||
```bash
|
||
scrcpy --push-target /sdcard/foo/bar/
|
||
```
|
||
|
||
|
||
### Audio forwarding
|
||
|
||
Audio is not forwarded by _scrcpy_. Use [sndcpy].
|
||
|
||
Also see [issue #14].
|
||
|
||
[sndcpy]: https://github.com/rom1v/sndcpy
|
||
[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
|
||
|
||
|
||
## Shortcuts
|
||
|
||
In the following list, <kbd>MOD</kbd> is the shortcut modifier. By default, it's
|
||
(left) <kbd>Alt</kbd> or (left) <kbd>Super</kbd>.
|
||
|
||
It can be changed using `--shortcut-mod`. Possible keys are `lctrl`, `rctrl`,
|
||
`lalt`, `ralt`, `lsuper` and `rsuper`. For example:
|
||
|
||
```bash
|
||
# use RCtrl for shortcuts
|
||
scrcpy --shortcut-mod=rctrl
|
||
|
||
# use either LCtrl+LAlt or LSuper for shortcuts
|
||
scrcpy --shortcut-mod=lctrl+lalt,lsuper
|
||
```
|
||
|
||
_<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
|
||
|
||
[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
|
||
|
||
| Action | Shortcut
|
||
| ------------------------------------------- |:-----------------------------
|
||
| Switch fullscreen mode | <kbd>MOD</kbd>+<kbd>f</kbd>
|
||
| Rotate display left | <kbd>MOD</kbd>+<kbd>←</kbd> _(left)_
|
||
| Rotate display right | <kbd>MOD</kbd>+<kbd>→</kbd> _(right)_
|
||
| Resize window to 1:1 (pixel-perfect) | <kbd>MOD</kbd>+<kbd>g</kbd>
|
||
| Resize window to remove black borders | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Double-click¹_
|
||
| Click on `HOME` | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Middle-click_
|
||
| Click on `BACK` | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Right-click²_
|
||
| Click on `APP_SWITCH` | <kbd>MOD</kbd>+<kbd>s</kbd>
|
||
| Click on `MENU` (unlock screen) | <kbd>MOD</kbd>+<kbd>m</kbd>
|
||
| Click on `VOLUME_UP` | <kbd>MOD</kbd>+<kbd>↑</kbd> _(up)_
|
||
| Click on `VOLUME_DOWN` | <kbd>MOD</kbd>+<kbd>↓</kbd> _(down)_
|
||
| Click on `POWER` | <kbd>MOD</kbd>+<kbd>p</kbd>
|
||
| Power on | _Right-click²_
|
||
| Turn device screen off (keep mirroring) | <kbd>MOD</kbd>+<kbd>o</kbd>
|
||
| Turn device screen on | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
|
||
| Rotate device screen | <kbd>MOD</kbd>+<kbd>r</kbd>
|
||
| Expand notification panel | <kbd>MOD</kbd>+<kbd>n</kbd>
|
||
| Collapse notification panel | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
|
||
| Copy to clipboard³ | <kbd>MOD</kbd>+<kbd>c</kbd>
|
||
| Cut to clipboard³ | <kbd>MOD</kbd>+<kbd>x</kbd>
|
||
| Synchronize clipboards and paste³ | <kbd>MOD</kbd>+<kbd>v</kbd>
|
||
| Inject computer clipboard text | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
|
||
| Enable/disable FPS counter (on stdout) | <kbd>MOD</kbd>+<kbd>i</kbd>
|
||
| Pinch-to-zoom | <kbd>Ctrl</kbd>+_click-and-move_
|
||
|
||
_¹Double-click on black borders to remove them._
|
||
_²Right-click turns the screen on if it was off, presses BACK otherwise._
|
||
_³Only on Android >= 7._
|
||
|
||
All <kbd>Ctrl</kbd>+_key_ shortcuts are forwarded to the device, so they are
|
||
handled by the active application.
|
||
|
||
|
||
## Custom paths
|
||
|
||
To use a specific _adb_ binary, configure its path in the environment variable
|
||
`ADB`:
|
||
|
||
ADB=/path/to/adb scrcpy
|
||
|
||
To override the path of the `scrcpy-server` file, configure its path in
|
||
`SCRCPY_SERVER_PATH`.
|
||
|
||
[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
|
||
|
||
|
||
## Why _scrcpy_?
|
||
|
||
A colleague challenged me to find a name as unpronounceable as [gnirehtet].
|
||
|
||
[`strcpy`] copies a **str**ing; `scrcpy` copies a **scr**een.
|
||
|
||
[gnirehtet]: https://github.com/Genymobile/gnirehtet
|
||
[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
|
||
|
||
|
||
## How to build?
|
||
|
||
See [BUILD].
|
||
|
||
[BUILD]: BUILD.md
|
||
|
||
|
||
## Common issues
|
||
|
||
See the [FAQ](FAQ.md).
|
||
|
||
|
||
## Developers
|
||
|
||
Read the [developers page].
|
||
|
||
[developers page]: DEVELOP.md
|
||
|
||
|
||
## Licence
|
||
|
||
Copyright (C) 2018 Genymobile
|
||
Copyright (C) 2018-2021 Romain Vimont
|
||
|
||
Licensed under the Apache License, Version 2.0 (the "License");
|
||
you may not use this file except in compliance with the License.
|
||
You may obtain a copy of the License at
|
||
|
||
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
||
Unless required by applicable law or agreed to in writing, software
|
||
distributed under the License is distributed on an "AS IS" BASIS,
|
||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
See the License for the specific language governing permissions and
|
||
limitations under the License.
|
||
|
||
## Articles
|
||
|
||
- [Introducing scrcpy][article-intro]
|
||
- [Scrcpy now works wirelessly][article-tcpip]
|
||
|
||
[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
|
||
[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
|
||
|
||
## Translations
|
||
|
||
This README is available in other languages:
|
||
|
||
- [Indonesian (Indonesia, `id`) - v1.16](README.id.md)
|
||
- [한국어 (Korean, `ko`) - v1.11](README.ko.md)
|
||
- [português brasileiro (Brazilian Portuguese, `pt-BR`) - v1.17](README.pt-br.md)
|
||
- [简体中文 (Simplified Chinese, `zh-Hans`) - v1.17](README.zh-Hans.md)
|
||
- [繁體中文 (Traditional Chinese, `zh-Hant`) - v1.15](README.zh-Hant.md)
|
||
|
||
Only this README file is guaranteed to be up-to-date.
|