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+"wasm-av1" sample introduction
+==============
+
+This sample demonstrates how to build [wasm-av1](https://github.com/GoogleChromeLabs/wasm-av1) into
+WebAssembly with simd support and run it with iwasm.
+
+## Preparation
+
+please refer to [installation instructions](../README.md).
+
+## Build with wasi-sdk
+
+``` shell
+$ mkdir build && cd build
+$ cmake ..
+$ make
+# to verify
+$ ls testavx.wasm
+```
+
+## Or build with EMSDK
+
+just run the convenience script:
+
+```bash
+./build.sh
+```
+
+the script builds wasm-av1 and runs it with iwasm, which basically contains the following steps:
+- hack emcc to delete some objects in libc.a
+- patch wasm-av1 and build it with emcc compiler
+- build iwasm with simd and libc-emcc support
+- run testav1.aot with iwasm
+
+### Run workload
+
+Firstly please build iwasm with simd support:
+
+``` shell
+$ cd <wamr dir>/product-mini/platforms/linux/
+$ mkdir build && cd build
+$ cmake .. -DWAMR_BUILD_LIBC_EMCC=1
+$ make
+```
+
+Then compile wasm file to aot file and run:
+
+``` shell
+$ cd <dir of testavx.wasm>
+$ <wamr dir>/wamr-compiler/build/wamrc -o testavx.aot testavx.wasm
+# copy sample data like <wamr dir>/samples/workload/wasm-av1/av1/third_party/samples/elephants_dream_480p24.ivf
+# make sure you declare the access priority of the directory in which the sample data is
+$ <wamr dir>/product-mini/platforms/linux/build/iwasm --dir=. testavx.aot elephants_dream_480p24.ivf
+```