On Tue, 3 Aug 2010, Pavel Hofman wrote: > Hi, > > mplayer checks hw_params for availability of the current format > http://mplayer-ww.git.sourceforge.net/git/gitweb.cgi?p=mplayer-ww/mplayer-ww;a=blob;f=libao2/ao_alsa.c;h=57f0bd07cb5ec300d327682a0b5209ba9dc10e30;hb=09ab9f6346aaf15d20792ca3df761a45fe46d83d#l514 > . If the check fails, it uses 16bits as fixed default. > > Now if we define the card to be plughw:0, the check still fails for > formats unsupported directly by the card. Which in fact is incorrect > since the plug plugin takes care of most formats known. The same holds > for sample rates. It works for me: perex@eeebox2:~/alsa/alsa-lib/test> ./pcm Playback device is plughw:0,0 Stream parameters are 44100Hz, S16_LE, 1 channels Sine wave rate is 440.0000Hz Using transfer method: write test format float_le: 0 test format mpeg: -22 Using modified alsa-lib/test/pcm.c code: diff --git a/test/pcm.c b/test/pcm.c index abb83e4..0582891 100644 --- a/test/pcm.c +++ b/test/pcm.c @@ -106,6 +106,8 @@ static int set_hwparams(snd_pcm_t *handle, printf("Broken configuration for playback: no configurations available: %s\n", snd_strerror(err)); return err; } + printf("test format float_le: %i\n", snd_pcm_hw_params_test_format(handle, params, SND_PCM_FORMAT_FLOAT_LE)); + printf("test format mpeg: %i\n", snd_pcm_hw_params_test_format(handle, params, SND_PCM_FORMAT_MPEG)); /* set hardware resampling */ err = snd_pcm_hw_params_set_rate_resample(handle, params, resample); if (err < 0) { Could you describe you hw configuration or can you reproduce this issue with the snd-dummy module? Jaroslav ----- Jaroslav Kysela <perex@xxxxxxxx> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
