eeva/jamulus
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

removed unnecessary code

Browse source
This commit is contained in:
Volker Fischer 2009-02-16 12:21:33 +00:00
parent 0f2a96b1ff
commit 16014abb7e
1 changed files with 0 additions and 50 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

50
linux/sound.cpp
View file

@ -45,56 +45,6 @@ void CSound::InitRecording ( const bool bNewBlocking )
// set hardware parameters
SetHWParams ( rhandle, iBufferSizeIn, iCurPeriodSizeIn );
// sw parameters -----------------------------------------------------------
snd_pcm_sw_params_t* swparams;
// allocate an invalid snd_pcm_sw_params_t using standard malloc
if ( err = snd_pcm_sw_params_malloc ( &swparams ) != 0 )
{
qDebug ( "snd_pcm_sw_params_malloc: %s", snd_strerror ( err ) );
}
// get the current swparams
if ( err = snd_pcm_sw_params_current ( rhandle, swparams ) < 0 )
{
qDebug ( "Unable to determine current swparams : %s", snd_strerror ( err ) );
}
// start the transfer when the buffer immediately -> no threshold, val: 0
err = snd_pcm_sw_params_set_start_threshold ( rhandle, swparams, 0 );
if ( err < 0 )
{
qDebug ( "Unable to set start threshold mode : %s", snd_strerror ( err ) );
}
// set avail min inside a software configuration container
/* Note: This is similar to setting an OSS wakeup point. The valid values
for 'val' are determined by the specific hardware. Most PC sound cards
can only accept power of 2 frame counts (i.e. 512, 1024, 2048). You
cannot use this as a high resolution timer - it is limited to how often
the sound card hardware raises an interrupt. Note that you can greatly
improve the reponses using snd_pcm_sw_params_set_sleep_min where another
timing source is used */
snd_pcm_uframes_t period_size = iBufferSizeIn;
err = snd_pcm_sw_params_set_avail_min ( rhandle, swparams, period_size );
if ( err < 0 )
{
qDebug ( "Unable to set avail min : %s", snd_strerror ( err ) );
}
// write the parameters to the record/playback device
err = snd_pcm_sw_params ( rhandle, swparams );
if ( err < 0 )
{
qDebug ( "Unable to set sw params : %s", snd_strerror ( err ) );
}
// clean-up
snd_pcm_sw_params_free ( swparams );
// start record
snd_pcm_reset ( rhandle );
snd_pcm_start ( rhandle );