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Make sure audio output is flushed before closing devices in ALSA and OSS code.

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This commit is contained in:
Erik de Castro Lopo 2004-12-30 23:48:42 +00:00
parent 037434b062
commit 8bef0e5b32
2 changed files with 16 additions and 2 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2004-12-31 Erik de Castro Lopo <erikd AT mega-nerd DOT com>
* src/sndfile-play.c
In the ALSA output code, added call to snd_pcm_drain() just before
snd_pcm_close() as suggested by Thomas Kaeding.
In the OSS output code, added two ioctls (SNDCTL_DSP_POST and
SNDCTL_DSP_SYNC) just before the close of the audio device.
2004-12-23 Erik de Castro Lopo <erikd AT mega-nerd DOT com>
* src/*.c src/sndfile.h.in

10
examples/sndfile-play.c
View File

@ -115,6 +115,7 @@ alsa_play (int argc, char *argv [])
alsa_write_float (alsa_dev, buffer, BUFFER_LEN / sfinfo.channels, sfinfo.channels) ;
} ;
snd_pcm_drain (alsa_dev) ;
snd_pcm_close (alsa_dev) ;
sf_close (sndfile) ;
@ -140,7 +141,7 @@ alsa_open (int channels, int samplerate, int realtime)
}
else
{ alsa_period_size = 1024 ;
alsa_buffer_frames = 6 * alsa_period_size ;
alsa_buffer_frames = 4 * alsa_period_size ;
} ;
if ((err = snd_pcm_open (&alsa_dev, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0)
@ -185,7 +186,6 @@ alsa_open (int channels, int samplerate, int realtime)
return NULL ;
} ;
if ((err = snd_pcm_hw_params_set_period_size_near (alsa_dev, hw_params, &alsa_period_size, 0)) < 0)
{ fprintf (stderr, "cannot set period size (%s)\n", snd_strerror (err)) ;
return NULL ;
@ -381,6 +381,12 @@ linux_play (int argc, char *argv [])
write (audio_device, buffer, readcount * sizeof (short)) ;
} ;
if (ioctl (audio_device, SNDCTL_DSP_POST, 0) == -1)
perror ("ioctl (SNDCTL_DSP_POST) ") ;
if (ioctl (audio_device, SNDCTL_DSP_SYNC, 0) == -1)
perror ("ioctl (SNDCTL_DSP_SYNC) ") ;
close (audio_device) ;
sf_close (sndfile) ;