Re: [alsa-devel] [PATCH 5/6] compress: add the core file

Even the thread which actually writes the data to ring buffer may not have the idea of frames So the start threshold does not require to be on frame boundaries. It is just to avoid START when the buffer is written with the data. If the write gives more data than the ring buffer, write will not unblock and the user space application may not be able to call START. This will be an issue if you go for non-blocking implementation. Otherwise, START should be called in another thread than the thread which writes the data.

I did not understand a single line of this comment. Why is this start threshold needed again and how would its value be defined for compressed data? -Pierre