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This commit is contained in:
Jaroslav Kysela 1998-08-31 14:21:06 +00:00
parent 2ae16fb30d
commit 82fc81e31e
3 changed files with 11 additions and 11 deletions
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4
doc/soundapi-3.html
View file

@ -134,11 +134,11 @@ int card = 0, err;
void *handle;
stuct snd_ctl_hw_info info;
if ( (err = snd_ctl_open( &handle, card )) < 0 ) {
if ( (err = snd_ctl_open( &handle, card )) < 0 ) {
fprintf( stderr, "open failed: %s\n", snd_strerror( err ) );
return;
}
if ( (err = snd_ctl_hw_info( handle, &info )) < 0 ) {
if ( (err = snd_ctl_hw_info( handle, &info )) < 0 ) {
fprintf( stderr, "hw info failed: %s\n", snd_strerror( err ) );
snd_ctl_close( handle );
return;

8
doc/soundapi-4.html
View file

@ -228,11 +228,11 @@ void *handle;
snd_mixer_info_t info;
snd_mixer_channel_t channel;
if ( (err = snd_mixer_open( &handle, card, device )) < 0 ) {
if ( (err = snd_mixer_open( &handle, card, device )) < 0 ) {
fprintf( stderr, "open failed: %s\n", snd_strerror( err ) );
return;
}
if ( (err = snd_mixer_info( handle, &info )) < 0 ) {
if ( (err = snd_mixer_info( handle, &info )) < 0 ) {
fprintf( stderr, "info failed: %s\n", snd_strerror( err ) );
snd_mixer_close( handle );
return;
@ -241,13 +241,13 @@ printf( "Installed MIXER channels for card #i and device %i: %i\n",
card + 1, device, info.channels );
master = snd_mixer_channel( handle, SND_MIXER_ID_MASTER );
if ( master >= 0 ) {
if ( (err = snd_mixer_read( handle, master, &channel )) < 0 ) {
if ( (err = snd_mixer_read( handle, master, &channel )) < 0 ) {
fprintf( stderr, "master read failed: %s\n", snd_strerror( err ) );
snd_mixer_close( handle );
return;
}
channel -> left = channel -> right = 50;
if ( (err = snd_mixer_write( handle, master, &channel )) < 0 ) {
if ( (err = snd_mixer_write( handle, master, &channel )) < 0 ) {
fprintf( stderr, "master write failed: %s\n", snd_strerror( err ) );
snd_mixer_close( handle );
return;

10
doc/soundapi-5.html
View file

@ -394,7 +394,7 @@ should not be equal to <I>count</I>.</P>
of <I>snd_pcm_playback_status</I>.</P>
<DT><B>time</B><DD><P>Delay till played of the first sample from next write. This value should
be used for time synchronization. Returned value is in the same format as
returned from the standard C function <I>gettimeofday( &time, NULL )</I>.
returned from the standard C function <I>gettimeofday( &amp;time, NULL )</I>.
This variable contains right value only if playback time mode is enabled
(look to <I>snd_pcm_playback_time</I> function).</P>
<DT><B>stime</B><DD><P>Time when playback was started.
@ -434,7 +434,7 @@ should not be equal to <I>count</I>.</P>
to <I>snd_pcm_record_status</I>.</P>
<DT><B>time</B><DD><P>Lag since the next sample read was recorded. This value should be used for time
synchronization. Returned value is in the same format as returned by the
from standard C function <I>gettimeofday( &time, NULL )</I>. This
from standard C function <I>gettimeofday( &amp;time, NULL )</I>. This
variable contains right value only if record time mode is enabled (look to
<I>snd_pcm_record_time</I> function).</P>
<DT><B>stime</B><DD><P>Time when record was started. This variable contains right value only if
@ -503,14 +503,14 @@ char *buffer;
buffer = (char *)malloc( 512 * 1024 );
if ( !buffer ) return;
if ( (err = snd_pcm_open( &handle, card, device, SND_PCM_OPEN_PLAYBACK )) &lt; 0 ) {
if ( (err = snd_pcm_open( &amp;handle, card, device, SND_PCM_OPEN_PLAYBACK )) &lt; 0 ) {
fprintf( stderr, &quot;open failed: %s\n&quot;, snd_strerror( err ) );
return;
}
format.format = SND_PCM_SFMT_MU_LAW;
format.rate = 8000;
format.channels = 1;
if ( (err = snd_pcm_playback_format( handle, &format )) &lt; 0 ) {
if ( (err = snd_pcm_playback_format( handle, &amp;format )) &lt; 0 ) {
fprintf( stderr, &quot;format setup failed: %s\n&quot;, snd_strerror( err ) );
snd_pcm_close( handle );
return;
@ -534,7 +534,7 @@ if ( !memcmp( buffer, &quot;.snd&quot;, 4 ) ) {
if ( idx &gt; 128 ) idx = 128;
if ( idx &gt; count ) idx = count;
}
size = snd_pcm_write( handle, &buffer[ idx ], count - idx );
size = snd_pcm_write( handle, &amp;buffer[ idx ], count - idx );
printf( &quot;Bytes written %i from %i...\n&quot;, size, count - idx );
snd_pcm_close( handle );
free( buffer );