diff options
| author | Alexandre Ratchov <ratchov@cvs.openbsd.org> | 2009-01-21 22:18:32 +0000 |
|---|---|---|
| committer | Alexandre Ratchov <ratchov@cvs.openbsd.org> | 2009-01-21 22:18:32 +0000 |
| commit | ddd554bb41a71164b61483f3eb20ea71fcd77378 (patch) | |
| tree | 62d03fcc913129f81f11f089ae2aa97b1e4175cb | |
| parent | a624a55349befd009bb777be9959a5509eadbfb8 (diff) | |
explain what ``frame'' does mean
from Thomas Pfaff <tpfaff(at)tp76.info>, thanks!
ok jmc
| -rw-r--r-- | lib/libsndio/sio_open.3 | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/libsndio/sio_open.3 b/lib/libsndio/sio_open.3 index 789c8627092..0fc9249eaf1 100644 --- a/lib/libsndio/sio_open.3 +++ b/lib/libsndio/sio_open.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: sio_open.3,v 1.14 2009/01/12 20:47:34 ratchov Exp $ +.\" $OpenBSD: sio_open.3,v 1.15 2009/01/21 22:18:31 ratchov Exp $ .\" .\" Copyright (c) 2007 Alexandre Ratchov <alex@caoua.org> .\" @@ -14,7 +14,7 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: January 12 2009 $ +.Dd $Mdocdate: January 21 2009 $ .Dt SIO_OPEN 3 .Os .Sh NAME @@ -109,7 +109,7 @@ parameter gives the path of the socket or the .Xr audio 4 device. -In most cases it should be left to NULL to allow +In most cases it should be set to NULL to allow the user to select it using the .Ev AUDIODEVICE environment variable. @@ -147,6 +147,10 @@ associated with the handle. .Ss Negotiating audio parameters Audio streams always use linear interleaved encoding. +A frame consists of one sample for each channel in the stream. +For example, a 16-bit stereo stream has two samples per frame +and, typically, two bytes per sample (thus 4 bytes per frame). +.Pp The set of parameters of the stream that can be controlled is given by the following structure: .Bd -literal |