[Help wanted] Support tinyalsa

[csukuangfj]

People want to use https://github.com/k2-fsa/sherpa-ncnn/blob/master/sherpa-ncnn/csrc/sherpa-ncnn-alsa.cc on Android.
However, it is not easy to compile its dependency alsa-lib for Android.

Here comes tinyalsa https://github.com/tinyalsa/tinyalsa
It is straightforward to cross-compile tinyalsa for Android with the following commands

#!/usr/bin/env bash

ANDROID_NDK=/ceph-fj/fangjun/software/android-sdk/ndk/21.0.6113669

mkdir -p build
cd build

cmake \
  -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK/build/cmake/android.toolchain.cmake" \
  -DANDROID_ABI="arm64-v8a" \
  -DANDROID_PLATFORM=android-21 \
  -DCMAKE_BUILD_TYPE=Release \
  -DBUILD_SHARED_LIBS=ON \
  -DTINYALSA_BUILD_EXAMPLES=OFF \
  -DTINYALSA_BUILD_UTILS=OFF \
  ..

make -j 3

---

TODOs

Use

• https://github.com/k2-fsa/sherpa-ncnn/blob/master/sherpa-ncnn/csrc/sherpa-ncnn-alsa.cc
• https://github.com/k2-fsa/sherpa-ncnn/blob/master/sherpa-ncnn/csrc/alsa.h
• https://github.com/k2-fsa/sherpa-ncnn/blob/master/sherpa-ncnn/csrc/alsa.cc

as a reference to support tinyalsa. We need to implement the following files

• sherpa-ncnn-tinyalsa.cc
• tinyalsa.h
• tinyalsa.cc

Support from the community is highly welcome.

[csukuangfj]

https://github.com/Samsung/TizenRT/blob/master/docs/HowToUseTinyAlsa.md
might be helpful for this task.