# scrcpy (v1.12.1) This application provides display and control of Android devices connected on USB (or [over TCP/IP][article-tcpip]). It does not require any _root_ access. It works on _GNU/Linux_, _Windows_ and _macOS_. ![screenshot](assets/screenshot-debian-600.jpg) It focuses on: - **lightness** (native, displays only the device screen) - **performance** (30~60fps) - **quality** (1920×1080 or above) - **low latency** ([35~70ms][lowlatency]) - **low startup time** (~1 second to display the first image) - **non-intrusiveness** (nothing is left installed on the device) [lowlatency]: https://github.com/Genymobile/scrcpy/pull/646 ## Requirements The Android device requires at least API 21 (Android 5.0). Make sure you [enabled adb debugging][enable-adb] on your device(s). [enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling On some devices, you also need to enable [an additional option][control] to control it using keyboard and mouse. [control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323 ## Get the app ### Linux In Debian (_testing_ and _sid_ for now): ``` apt install scrcpy ``` A [Snap] package is available: [`scrcpy`][snap-link]. [snap-link]: https://snapstats.org/snaps/scrcpy [snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager) For Arch Linux, an [AUR] package is available: [`scrcpy`][aur-link]. [AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository [aur-link]: https://aur.archlinux.org/packages/scrcpy/ For Gentoo, an [Ebuild] is available: [`scrcpy/`][ebuild-link]. [Ebuild]: https://wiki.gentoo.org/wiki/Ebuild [ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy You could also [build the app manually][BUILD] (don't worry, it's not that hard). ### Windows For Windows, for simplicity, prebuilt archives with all the dependencies (including `adb`) are available: - [`scrcpy-win32-v1.12.1.zip`][direct-win32] _(SHA-256: 0f4b3b063536b50a2df05dc42c760f9cc0093a9a26dbdf02d8232c74dab43480)_ - [`scrcpy-win64-v1.12.1.zip`][direct-win64] _(SHA-256: 57d34b6d16cfd9fe169bc37c4df58ebd256d05c1ea3febc63d9cb0a027ab47c9)_ [direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win32-v1.12.1.zip [direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win64-v1.12.1.zip You can also [build the app manually][BUILD]. ### macOS The application is available in [Homebrew]. Just install it: [Homebrew]: https://brew.sh/ ```bash brew install scrcpy ``` You need `adb`, accessible from your `PATH`. If you don't have it yet: ```bash brew cask install android-platform-tools ``` You can also [build the app manually][BUILD]. ## Run Plug an Android device, and execute: ```bash scrcpy ``` It accepts command-line arguments, listed by: ```bash scrcpy --help ``` ## Features ### Capture configuration #### Reduce size Sometimes, it is useful to mirror an Android device at a lower definition to increase performance. To limit both the width and height to some value (e.g. 1024): ```bash scrcpy --max-size 1024 scrcpy -m 1024 # short version ``` The other dimension is computed to that the device aspect ratio is preserved. That way, a device in 1920×1080 will be mirrored at 1024×576. #### Change bit-rate The default bit-rate is 8 Mbps. To change the video bitrate (e.g. to 2 Mbps): ```bash scrcpy --bit-rate 2M scrcpy -b 2M # short version ``` #### Limit frame rate On devices with Android >= 10, the capture frame rate can be limited: ```bash scrcpy --max-fps 15 ``` #### Crop The device screen may be cropped to mirror only part of the screen. This is useful for example to mirror only one eye of the Oculus Go: ```bash scrcpy --crop 1224:1440:0:0 # 1224x1440 at offset (0,0) ``` If `--max-size` is also specified, resizing is applied after cropping. ### Recording It is possible to record the screen while mirroring: ```bash scrcpy --record file.mp4 scrcpy -r file.mkv ``` To disable mirroring while recording: ```bash scrcpy --no-display --record file.mp4 scrcpy -Nr file.mkv # interrupt recording with Ctrl+C # Ctrl+C does not terminate properly on Windows, so disconnect the device ``` "Skipped frames" are recorded, even if they are not displayed in real time (for performance reasons). Frames are _timestamped_ on the device, so [packet delay variation] does not impact the recorded file. [packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation ### Connection #### Wireless _Scrcpy_ uses `adb` to communicate with the device, and `adb` can [connect] to a device over TCP/IP: 1. Connect the device to the same Wi-Fi as your computer. 2. Get your device IP address (in Settings → About phone → Status). 3. Enable adb over TCP/IP on your device: `adb tcpip 5555`. 4. Unplug your device. 5. Connect to your device: `adb connect DEVICE_IP:5555` _(replace `DEVICE_IP`)_. 6. Run `scrcpy` as usual. It may be useful to decrease the bit-rate and the definition: ```bash scrcpy --bit-rate 2M --max-size 800 scrcpy -b2M -m800 # short version ``` [connect]: https://developer.android.com/studio/command-line/adb.html#wireless #### Multi-devices If several devices are listed in `adb devices`, you must specify the _serial_: ```bash scrcpy --serial 0123456789abcdef scrcpy -s 0123456789abcdef # short version ``` If the device is connected over TCP/IP: ```bash scrcpy --serial 192.168.0.1:5555 scrcpy -s 192.168.0.1:5555 # short version ``` You can start several instances of _scrcpy_ for several devices. #### SSH tunnel To connect to a remote device, it is possible to connect a local `adb` client to a remote `adb` server (provided they use the same version of the _adb_ protocol): ```bash adb kill-server # kill the local adb server on 5037 ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer # keep this open ``` From another terminal: ```bash scrcpy ``` Like for wireless connections, it may be useful to reduce quality: ``` scrcpy -b2M -m800 --max-fps 15 ``` ### Window configuration #### Title By default, the window title is the device model. It can be changed: ```bash scrcpy --window-title 'My device' ``` #### Position and size The initial window position and size may be specified: ```bash scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600 ``` #### Borderless To disable window decorations: ```bash scrcpy --window-borderless ``` #### Always on top To keep the scrcpy window always on top: ```bash scrcpy --always-on-top ``` #### Fullscreen The app may be started directly in fullscreen: ```bash scrcpy --fullscreen scrcpy -f # short version ``` Fullscreen can then be toggled dynamically with `Ctrl`+`f`. ### Other mirroring options #### Read-only To disable controls (everything which can interact with the device: input keys, mouse events, drag&drop files): ```bash scrcpy --no-control scrcpy -n ``` #### Turn screen off It is possible to turn the device screen off while mirroring on start with a command-line option: ```bash scrcpy --turn-screen-off scrcpy -S ``` Or by pressing `Ctrl`+`o` at any time. To turn it back on, press `POWER` (or `Ctrl`+`p`). #### Render expired frames By default, to minimize latency, _scrcpy_ always renders the last decoded frame available, and drops any previous one. To force the rendering of all frames (at a cost of a possible increased latency), use: ```bash scrcpy --render-expired-frames ``` #### Show touches For presentations, it may be useful to show physical touches (on the physical device). Android provides this feature in _Developers options_. _Scrcpy_ provides an option to enable this feature on start and disable on exit: ```bash scrcpy --show-touches scrcpy -t ``` Note that it only shows _physical_ touches (with the finger on the device). ### Input control #### Rotate device screen Press `Ctrl`+`r` to switch between portrait and landscape modes. Note that it rotates only if the application in foreground supports the requested orientation. #### Copy-paste It is possible to synchronize clipboards between the computer and the device, in both directions: - `Ctrl`+`c` copies the device clipboard to the computer clipboard; - `Ctrl`+`Shift`+`v` copies the computer clipboard to the device clipboard; - `Ctrl`+`v` _pastes_ the computer clipboard as a sequence of text events (but breaks non-ASCII characters). #### 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 ### 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 [USBaudio] (Linux-only). Also see [issue #14]. [USBaudio]: https://github.com/rom1v/usbaudio [issue #14]: https://github.com/Genymobile/scrcpy/issues/14 ## Shortcuts | Action | Shortcut | Shortcut (macOS) | -------------------------------------- |:----------------------------- |:----------------------------- | Switch fullscreen mode | `Ctrl`+`f` | `Cmd`+`f` | Resize window to 1:1 (pixel-perfect) | `Ctrl`+`g` | `Cmd`+`g` | Resize window to remove black borders | `Ctrl`+`x` \| _Double-click¹_ | `Cmd`+`x` \| _Double-click¹_ | Click on `HOME` | `Ctrl`+`h` \| _Middle-click_ | `Ctrl`+`h` \| _Middle-click_ | Click on `BACK` | `Ctrl`+`b` \| _Right-click²_ | `Cmd`+`b` \| _Right-click²_ | Click on `APP_SWITCH` | `Ctrl`+`s` | `Cmd`+`s` | Click on `MENU` | `Ctrl`+`m` | `Ctrl`+`m` | Click on `VOLUME_UP` | `Ctrl`+`↑` _(up)_ | `Cmd`+`↑` _(up)_ | Click on `VOLUME_DOWN` | `Ctrl`+`↓` _(down)_ | `Cmd`+`↓` _(down)_ | Click on `POWER` | `Ctrl`+`p` | `Cmd`+`p` | Power on | _Right-click²_ | _Right-click²_ | Turn device screen off (keep mirroring)| `Ctrl`+`o` | `Cmd`+`o` | Rotate device screen | `Ctrl`+`r` | `Cmd`+`r` | Expand notification panel | `Ctrl`+`n` | `Cmd`+`n` | Collapse notification panel | `Ctrl`+`Shift`+`n` | `Cmd`+`Shift`+`n` | Copy device clipboard to computer | `Ctrl`+`c` | `Cmd`+`c` | Paste computer clipboard to device | `Ctrl`+`v` | `Cmd`+`v` | Copy computer clipboard to device | `Ctrl`+`Shift`+`v` | `Cmd`+`Shift`+`v` | Enable/disable FPS counter (on stdout) | `Ctrl`+`i` | `Cmd`+`i` _¹Double-click on black borders to remove them._ _²Right-click turns the screen on if it was off, presses BACK otherwise._ ## 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) 2018-2020 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/