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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /mpeglib/lib/util/audio/audioIO_SunOS.cpp
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'mpeglib/lib/util/audio/audioIO_SunOS.cpp')
-rw-r--r--mpeglib/lib/util/audio/audioIO_SunOS.cpp167
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
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+/* 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);
+}