314 lines
8.2 KiB
Markdown
314 lines
8.2 KiB
Markdown
# scrcpy
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This application provides display and control of Android devices connected on
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USB. It does not require any _root_ access. It works on _GNU/Linux_, _Windows_
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and _MacOS_.
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## Requirements
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The Android part requires at least API 21 (Android 5.0).
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You need [adb]. It is available in the [Android SDK platform
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tools][platform-tools], or packaged in your distribution (`android-adb-tools`).
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On Windows, if you use the [prebuilt application](#windows), it is already
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included. Otherwise, just download the [platform-tools][platform-tools-windows]
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and extract the following files to a directory accessible from your `PATH`:
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- `adb.exe`
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- `AdbWinApi.dll`
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- `AdbWinUsbApi.dll`
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Make sure you [enabled adb debugging][enable-adb] on your device(s).
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The client requires [FFmpeg] and [LibSDL2].
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[adb]: https://developer.android.com/studio/command-line/adb.html
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[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
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[platform-tools]: https://developer.android.com/studio/releases/platform-tools.html
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[platform-tools-windows]: https://dl.google.com/android/repository/platform-tools-latest-windows.zip
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[ffmpeg]: https://en.wikipedia.org/wiki/FFmpeg
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[LibSDL2]: https://en.wikipedia.org/wiki/Simple_DirectMedia_Layer
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## Build and install
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### System-specific steps
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#### Linux
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Install the required packages from your package manager.
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##### Debian/Ubuntu
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```bash
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# runtime dependencies
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sudo apt install ffmpeg libsdl2-2.0.0
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# client build dependencies
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sudo apt install make gcc pkg-config meson \
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libavcodec-dev libavformat-dev libavutil-dev \
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libsdl2-dev
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# server build dependencies
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sudo apt install openjdk-8-jdk
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```
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##### Fedora
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```bash
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# enable RPM fusion free
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sudo dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm
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# client build dependencies
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sudo dnf install SDL2-devel ffms2-devel meson gcc make
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# server build dependencies
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sudo dnf install java
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```
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##### Arch Linux
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Two [AUR] packages have been created by users:
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- [`scrcpy`](https://aur.archlinux.org/packages/scrcpy/)
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- [`scrcpy-prebuiltserver`](https://aur.archlinux.org/packages/scrcpy-prebuiltserver/)
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[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
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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-windows-with-deps-v1.1.zip`][direct-windows-with-deps].
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_(SHA-256: 27eb36c15937601d1062c1dc0b45faae0e06fefea2019aadeb4fa7f76a07bb4c)_
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[direct-windows-with-deps]: https://github.com/Genymobile/scrcpy/releases/download/v1.1/scrcpy-windows-with-deps-v1.1.zip
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_(It's just a portable version including _dll_ copied from MSYS2.)_
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Instead, you may want to build it manually. You need [MSYS2] to build the
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project. From an MSYS2 terminal, install the required packages:
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[MSYS2]: http://www.msys2.org/
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```bash
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# runtime dependencies
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pacman -S mingw-w64-x86_64-SDL2 \
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mingw-w64-x86_64-ffmpeg
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# client build dependencies
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pacman -S mingw-w64-x86_64-make \
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mingw-w64-x86_64-gcc \
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mingw-w64-x86_64-pkg-config \
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mingw-w64-x86_64-meson
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```
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Java (>= 7) is not available in MSYS2, so if you plan to build the server,
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install it manually and make it available from the `PATH`:
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```bash
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export PATH="$JAVA_HOME/bin:$PATH"
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```
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#### Mac OS
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Use [Homebrew] to install the packages:
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[Homebrew]: https://brew.sh/
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```bash
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# runtime dependencies
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brew install sdl2 ffmpeg
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# client build dependencies
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brew install gcc pkg-config meson
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```
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Java (>= 7) is not available in Homebrew, so if you plan to build the server,
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install it manually and make it available from the `PATH`:
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```bash
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export PATH="$JAVA_HOME/bin:$PATH"
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```
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### Common steps
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Install the [Android SDK] (_Android Studio_), and set `ANDROID_HOME` to
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its directory. For example:
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[Android SDK]: https://developer.android.com/studio/index.html
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```bash
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export ANDROID_HOME=~/android/sdk
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```
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Clone the project:
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```bash
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git clone https://github.com/Genymobile/scrcpy
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cd scrcpy
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```
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Then, build:
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```bash
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meson x --buildtype release --strip -Db_lto=true
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cd x
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ninja
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```
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You can test it from here:
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```bash
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ninja run
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```
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Or you can install it on the system:
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```bash
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sudo ninja install # without sudo on Windows
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```
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This installs two files:
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- `/usr/local/bin/scrcpy`
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- `/usr/local/share/scrcpy/scrcpy-server.jar`
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Just remove them to "uninstall" the application.
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#### Prebuilt server
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Since the server binary, that will be pushed to the Android device, does not
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depend on your system and architecture, you may want to use the prebuilt binary
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instead:
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- [`scrcpy-server-v1.1.jar`][direct-scrcpy-server].
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_(SHA-256: 14826512bf38447ec94adf3b531676ce038d19e7e06757fb4e537882b17e77b3)_
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[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.1/scrcpy-server-v1.1.jar
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In that case, the build does not require Java or the Android SDK.
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Download the prebuilt server somewhere, and specify its path during the Meson
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configuration:
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```bash
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meson x --buildtype release --strip -Db_lto=true \
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-Dprebuilt_server=/path/to/scrcpy-server.jar
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cd x
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ninja
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sudo ninja install
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```
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## Run
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_At runtime, `adb` must be accessible from your `PATH`._
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If everything is ok, just 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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For example, to decrease video bitrate to 2Mbps (default is 8Mbps):
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```bash
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scrcpy -b 2M
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```
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To limit the video dimensions (e.g. if the device is 2540×1440, but the host
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screen is smaller, or cannot decode such a high definition):
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```bash
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scrcpy -m 1024
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```
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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 -s 0123456789abcdef
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```
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To run without installing:
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```bash
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./run x [options]
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```
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(where `x` is your build directory).
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## Shortcuts
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| Action | Shortcut |
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| -------------------------------------- |:---------------------------- |
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| switch fullscreen mode | `Ctrl`+`f` |
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| resize window to 1:1 (pixel-perfect) | `Ctrl`+`g` |
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| resize window to remove black borders | `Ctrl`+`x` \| _Double-click¹_ |
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| click on `HOME` | `Ctrl`+`h` \| _Middle-click_ |
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| click on `BACK` | `Ctrl`+`b` \| _Right-click²_ |
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| click on `APP_SWITCH` | `Ctrl`+`m` |
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| click on `VOLUME_UP` | `Ctrl`+`+` |
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| click on `VOLUME_DOWN` | `Ctrl`+`-` |
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| click on `POWER` | `Ctrl`+`p` |
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| turn screen on | _Right-click¹_ |
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| paste computer clipboard to device | `Ctrl`+`v` |
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| enable/disable FPS counter (on stdout) | `Ctrl`+`i` |
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_¹Double-click on black borders to remove them._
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_²Right-click turns the screen on if it was off, presses BACK otherwise._
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## Why _scrcpy_?
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A colleague challenged me to find a name as unpronounceable as [gnirehtet].
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[`strcpy`] copies a **str**ing; `scrcpy` copies a **scr**een.
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[gnirehtet]: https://github.com/Genymobile/gnirehtet
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[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
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## Common issues
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See the [FAQ](FAQ.md).
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## Developers
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Read the [developers page].
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[developers page]: DEVELOP.md
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## Licence
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Copyright (C) 2018 Genymobile
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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## Articles
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- [Introducing scrcpy](https://blog.rom1v.com/2018/03/introducing-scrcpy/)
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- [Scrcpy now works wirelessly](https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/)
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