about mpp audio record fail

[ardon]

提示：部分应用在使用alsa-lib库中接口snd_pcm_hw_params_set_period_size_near和snd_pcm_hw_params_set_buffer_size_near时需要alsa-lib库编译时把alsa-devdir、pcm-plugins、ctl-plugins打开
debian系统默认没有打开，如需实用请重新编译alsa-lib源码，通过configure打开此功能如下：

• 卸载原有alsa
  

sudo apt-get remove libasound2 --purge

• 安装编译alsa-lib
  

sudo apt-get source alsa-lib sudo ./configure --with-alsa-devdir=/dev/snd --with-pcm-plugins=all --with-ctl-plugins=all --without-versioned --enable-static=no sudo make sudo make install

• 安装编译alsa-utils
  

sudo apt-get source alsa-utils sudo ./configure sudo make sudo make install

[blitzfr]

alsa-utils require ncurses. so to install it follow that :

sudo apt-get source ncurses
sudo ./configure
sudo make
sudo make install

[ardon]

yes, you are right

[itzandroidtab]

Thank you. This fixed the audio problems I was having with the mpp_samples