Remco wrote: >>> ... endless clicking noise intermixed with music ... > >> sounds like the mp "delayed interrupt notification" issue that wreaks >> havoc on audio. >> > > I was expecting the writes to the audio device to fail (EAGAIN) if the > previous buffer isn't done playing yet. Basically I don't expect POLLOUT > to be set until all software buffers have been drained and the data has > been written to the device completely. Unless I'm doing something wrong or > misinterpreting something, this doesn't seem to be the case.
Another simplified way of looking at this in stub code: { open_wavefile_for_reading(); open_audio_device_for_writing(); set_audio_device_to_non_blocking_mode(); read_large_chunk_of_data_from_wavefile(); write_large_chunk_of_data_to_audio_device(); poll_for_POLLOUT_on_audio_device(); } I'd expect this to play the large chunk of data but it returns almost immediately, only playing a fraction of a second. I'm not sure whether this is a misconception on my part.