>> On Sun, 2009-12-20 at 09:55 -0500, Robert Henney wrote: >* the latest svn appears to have an alsa issue when playing more than one *>* file on some particular files I have. it's reproducible too. *>* *>* the audio will consistently fail to initialize for the second video file, *>* though if the files are reversed or played separately or -ao oss is used *>* then the problem does not occur. *>* *>* mplayer -ao alsa "[SpoonSubs]_Sketchbook_full_color's_02_[E80DF436].mkv" \ *>* "[SpoonSubs]_Sketchbook_full_color's_03_[FFE2F973].mkv" *>* *>* results in: *>* Building audio filter chain for 44100Hz/2ch/s16le -> 0Hz/0ch/??... *>* [AO_ALSA] Unable to set buffer time near: Invalid argument *>* Failed to initialize audio driver 'alsa' *>* *>* the sample files are in http://rut.org/sketch/ * >> Do you still get this error with the current git repo (git://repo.or.cz/mplayer-build.git)? I fixed some issues that could perhaps cause this, but as I can't reproduce your problem on my machine I don't know whether those were the ones you hit. It is because you changed the setting of buffer size/period size to buffer time/period time When you are using mmap , those PCI audio controller use DMA transfer and the period size is usually multiple of PCI/PCIE brust size so the drivers have constraint that the period size is multple of PCI/PCIE brust size Since sampling rate of audio is 44100 or 48000 which are multiple of 3 or 9 , the driver would not give you the exact period time/buffer time which you want e.g. the most common HDA audio has a constraint of multiple of 128 bytes http://thread.gmane.org/gmane.comp.audio.pulseaudio.general/6671
