Add sndio support for openbsd

Signed-off-by: François Andriot <francois.andriot@free.fr>

mpeglib/lib/util/audio/audioIO.cpp

@@ -26,8 +26,12 @@
 #endif
 
 #ifdef OS_BSD
+#ifdef __OpenBSD__
+  #include "audioIO_sndio.cpp"
+#else
   #include "audioIO_Linux.cpp"
 #endif
+#endif
 
 #if defined(OS_IRIX) || defined(OS_IRIX64)
   #include "audioIO_IRIX.cpp"

mpeglib/lib/util/audio/audioIO_sndio.cpp

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2010 Jacob Meuser <jakemsr@sdf.lonestar.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sndio.h>
+
+#include "audioIO.h"
+
+static struct sio_hdl *hdl;
+static struct sio_par par;
+
+int
+audioConstruct()
+{
+	hdl = NULL;
+	return true;
+}
+
+void
+audioDestruct()
+{
+}
+
+int
+audioOpen()
+{
+	hdl = sio_open(NULL, SIO_PLAY, 0);
+	if (hdl == NULL) {
+		fprintf(stderr, "unable to open audio device\n");
+		return 0;
+	}
+
+	return true;
+}
+
+inline void
+audioFlush()
+{
+}
+
+void
+audioClose()
+{
+	if (hdl != NULL)
+		sio_close(hdl);
+}
+
+void
+audioInit(int sampleSize, int frequency, int stereo, int sign, int big)
+{
+	sio_initpar(&par);
+
+	par.bits = sampleSize;
+	par.sig = sign ? 1 : 0;
+	par.le = big ? 0 : 1;
+	par.rate = frequency;
+	par.pchan = stereo ? 2 : 1;
+
+	if (!sio_setpar(hdl, &par) || !sio_getpar(hdl, &par))
+		fprintf(stderr, "error setting sndio parameters\n");
+  
+	if (par.bits != sampleSize ||
+	    par.sig != sign ? 1 : 0 ||
+	    par.le != big ? 0 : 1 ||
+	    par.rate != frequency ||
+	    par.pchan != stereo ? 2 : 1)
+		fprintf(stderr, "could not set requested audio parameters");
+
+	if (!sio_start(hdl))
+		fprintf(stderr, "could not start audio");
+}
+
+int
+getAudioBufferSize()
+{
+	return (par.appbufsz * par.bps * par.pchan);
+}
+
+
+void
+mixerSetVolume(int leftVolume, int rightVolume)
+{
+	/* values from 0..100 */
+}
+
+int
+mixerOpen()
+{
+	return false;
+}
+
+void
+mixerClose()
+{
+}
+
+int
+audioWrite(char *buffer, int count)
+{
+	return(sio_write(hdl, buffer, count));
+}