dep: Add libsamplerate

dep/libsamplerate/README.md

@@ -0,0 +1,62 @@
+![Logo](docs/SRC.png)
+
+This is libsamplerate, `0.1.9`.
+
+libsamplerate (also known as Secret Rabbit Code) is a library for performing sample rate conversion of audio data.
+
+* The [`src/`](https://github.com/libsndfile/libsamplerate/tree/master/src) directory contains the source code for library itself.
+* The [`docs/`](https://github.com/libsndfile/libsamplerate/tree/master/docs) directory contains the libsamplerate documentation.
+* The [`examples/`](https://github.com/libsndfile/libsamplerate/tree/master/examples) directory contains examples of how to write code using libsamplerate.
+* The [`tests/`](https://github.com/libsndfile/libsamplerate/tree/master/tests) directory contains programs which link against libsamplerate and test its functionality.
+* The [`Win32/`](https://github.com/libsndfile/libsamplerate/tree/master/Win32) directory contains files and documentation to allow libsamplerate to compile under Win32 with the Microsoft Visual C++ compiler.
+
+Additional references:
+
+* [Official website](http://libsndfile.github.io/libsamplerate//)
+* [GitHub](https://github.com/libsndfile/libsamplerate)
+
+---
+
+## Build Status
+
+| Branch         | Status                                                                                                            |
+|----------------|-------------------------------------------------------------------------------------------------------------------|
+| `master`       | ![Build](https://github.com/libsndfile/libsamplerate/workflows/Build/badge.svg)       |
+
+Branches [actively built](https://github.com/libsndfile/libsamplerate/actions) by GitHub Actions.
+
+---
+
+## Win32
+
+There are detailed instructions for building libsamplerate on Win32 in the file [`docs/win32.md`](https://github.com/libsndfile/libsamplerate/tree/master/docs/win32.md).
+
+## macOS
+
+Building on macOS should be the same as building it on any other Unix platform.
+
+## Other Platforms
+
+To compile libsamplerate on platforms which have a Bourne compatible shell, an ANSI C compiler and a make utility should require no more that the following three commands:
+```bash
+./configure
+make
+make install
+```
+
+## CMake
+
+There is a new [CMake](https://cmake.org/download/)-based build system available:
+```bash
+mkdir build
+cd build
+cmake ..
+make
+```
+
+* Use `cmake -DCMAKE_BUILD_TYPE=Release ..` to make a release build.
+* Use `cmake -DBUILD_SHARED_LIBS=ON ..` to build a shared library.
+
+## Contacts
+
+libsamplerate was written by [Erik de Castro Lopo](mailto:erikd@mega-nerd.com).