2010/6/14 Pierre CLARENC <pierre.crc at gmail.com> > Hi, > > >I have problems using Mplayer (MPlayer SVN-r30100-snapshot-4.4.1) with > ALSA. > > > >I want to play a RTP stream accessed through RTSP. When I use Ethernet > >interface, audio playback works well but when I use Wifi, audio playback > >works most of the time but sometimes I have the following message : > > > >[AO_ALSA] Write error: Broken pipe Audio : > >100.1% > > > >[AO_ALSA] Trying to reset soundcard. > > >>I doubt your problem is related to mplayer, but rather caused by the > quality > >>of your wireless connection. You will generally want to use Ethernet or > fast > >>PLC for streaming, which are way more reliable (and fast) than wireless > >>communication. A little googling on that topic will tell you the same! > > >>just my 2 cents, > >>Seb. > > Thanks for you answer, > > I agree with you but it's for a demonstration and the demonstration will be > better using Wifi than Ethernet :). > Moreover, it works when I use OSS (but sometimes I have problem of multiple > access to /dev/dsp file so I prefer use ALSA). > > > >>Does -cache help? > > >>Carl Eugen > > Thanks too, > > I see no improvement using -cache option : > > ./mplayer rtsp://mylink/monfichier_mp3.mp4 -ao alsa -ac ffmp3 -cache 8192 > -cache-min 4 > > Message is always the same when sound is crashing : > > [AO_ALSA] Write error: Broken pipe Audio : 100.1% > [AO_ALSA] Trying to reset soundcard. > > Another indication : when I use ALSA, pourcentage indicated (100 * > audio_time_usage / mpctx->delay) is always about "100%". When I use OSS, > the > value is smaller : about "10%" maximum. > I have noticed that when I use ALSA, it tries to decode much data at the > same time than when I use OSS. Maybe, there is a link ? > > Thanks in advance, > > Pierre > which alsa device are you using since you only specify -ao alsa ? what is the default device ? ( pulse , hw:0,0 or plug:dmix:0 )
