------------------ 原始邮件 ------------------

发件人: "SxDx"<sed@free.fr>;

发送时间: 2012年10月19日(星期五) 晚上9:38

收件人: "新月如钩"<46620410@qq.com>;

抄送: "linux-audio-dev"<linux-audio-dev@lists.linuxaudio.org>;

主题: Re: [LAD] About some interface of aplay

> From: "新月如钩" <46620410@qq.com>
>      I analyze the source code of aplay and very confused on follow
>      interfaces:
>             snd_pcm_playback_info()
>             snd_pcm_playback_format()
>             snd_pcm_playback_params()
>
>      The aplay is belongs to alsa-utils that also is a application.
>      It should be use interfaces of alsa-lib, but why i can't find
>      these interfaces in alsa-lib ?
>      Could you tell me where can find out these interface?

what version of alsa-utils do you have?
These functions are not in alsa-utils-1.0.24.2
that I have here nor in the git repository.