1 files changed, 167 insertions, 0 deletions
diff --git a/mpeglib/lib/util/audio/audioIO_SunOS.cpp b/mpeglib/lib/util/audio/audioIO_SunOS.cpp
new file mode 100644
index 00000000..4e9958a1
--- /dev/null
+++ b/mpeglib/lib/util/audio/audioIO_SunOS.cpp
@@ -0,0 +1,167 @@
+/* this file is a part of amp software, (C) tomislav uzelac 1996,1997
+
+	Origional code by: tomislav uzelac
+	Modified by:
+	* Andrew Richards - moved code from audio.c
+	* Jim Crumley - ported some code from other audioIO_'s
+
+ */
+
+#include <sys/types.h>
+#include <sys/stropts.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/audioio.h>
+#include "audioIO.h"
+#include <iostream.h>
+
+/* declare these static to effectively isolate the audio device */
+
+static int audio_fd;
+static audio_info_t auinfo;
+
+
+int audioConstruct(){
+  audio_fd=-1;
+  return true;
+}
+
+void audioDestruct() {
+
+}
+
+
+/* audioOpen() */
+/* should open the audio device and perform any special initialization */
+/* returns the file descriptior of the audio device										 */
+
+int audioOpen() {
+  AUDIO_INITINFO(&auinfo);
+
+  if ((audio_fd = open("/dev/audio",O_RDWR))==-1) {
+    perror("unable to open the audio device");
+  }
+  // Ok here something important if your programm forks:
+  if (audio_fd > 0) {
+    if (fcntl(audio_fd,F_SETFD,true) < 0) {
+      perror("fcntl socket");exit(1);
+    }
+  }
+  
+  DB(audio, msg("Audio device opened on %d\n",audio_fd) );
+  return (audio_fd > 0);
+}
+
+/* audioFlush() */
+/* should flush the audio device */
+
+inline void audioFlush() {
+	DB(audio, msg("audio: flush %d\n",audio_fd) );
+}
+
+
+/* audioClose() */
+/* should close the audio device and perform any special shutdown			 */
+
+void audioClose() {
+  close(audio_fd);
+}
+
+
+/**
+   Audio init assumes that the audiodevice is open. It initializes
+   it to the given values
+*/
+
+void audioInit(int sampleSize ,int frequency, int stereo,int sign, int big){
+
+  if (ioctl(audio_fd,AUDIO_GETINFO,&auinfo)<0)
+    perror("Unable to get audio info");
+  
+  auinfo.play.precision=sampleSize;
+  auinfo.play.encoding=AUDIO_ENCODING_LINEAR;
+  auinfo.play.channels=(stereo ? 2 : 1);
+  DB(audio, msg("setting sample rate to %d Hz",frequency) );
+  auinfo.play.sample_rate=frequency;
+  if (ioctl(audio_fd,AUDIO_SETINFO,&auinfo)<0)
+    perror("Unable to set audio info");
+
+}
+
+/* 
+   only code this if your system can change the volume while 
+   playing
+*/
+
+
+int getAudioBufferSize() {
+ int buf;
+ if (ioctl(audio_fd,AUDIO_GETINFO,&auinfo) == -1) {
+   perror("ioctl getAudioBufferSize using default");
+   buf=1024*65;
+ } else {
+   buf=auinfo.play.buffer_size;
+ }
+ return buf;
+}
+
+
+void mixerSetVolume(int leftVolume,int rightVolume) {
+  int volume;
+
+  volume=(leftVolume+rightVolume)/2;
+  auinfo.play.gain=(volume*255)/100;
+  
+  // now normalize to values 0...32
+  leftVolume=(32*leftVolume)/100;
+  rightVolume=(32*rightVolume)/100;
+
+  // eg : leftVolume=32, rightVolume=32 => balance=32
+  // eg : leftVolume=0,  rightVolume=32 => balance=64
+  // eg : leftVolume=32, rightVolume=0  => balance=0
+  
+  //cout << "leftVolume:"<<leftVolume<<endl;
+  //cout << "rightVolume:"<<rightVolume<<endl;
+  int balance=leftVolume-rightVolume+32;
+  //cout << "balance:"<<balance<<endl;
+  //someone should fix the volume on solaris
+  balance=0;
+  
+  auinfo.play.balance=(uchar_t)balance;
+  if (ioctl(audio_fd,AUDIO_SETINFO,&auinfo)<0)
+    perror("Unable to set sound volume");
+}
+
+
+
+
+int mixerOpen() {
+  return true;
+}
+
+void mixerClose() {
+}
+
+
+
+
+/* audioWrite */
+/* writes count bytes from buffer to the audio device */
+/* returns the number of bytes actually written */
+
+int audioWrite(char *buffer, int count)
+{
+	return(write(audio_fd,buffer,count));
+}
+
+/* Let buffer.c have the audio descriptor so it can select on it. This means	*/
+/* that the program is dependent on an file descriptor to work. Should really */
+/* move the select's etc (with inlines of course) in here so that this is the */
+/* ONLY file which has hardware dependent audio stuff in it										*/
+
+int
+getAudioFd()
+{
+	return(audio_fd);
+}