SUN-Solaris audio out

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1042 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 223 insertions, 0 deletions

diff --git a/libao2/ao_sun.c b/libao2/ao_sun.c
new file mode 100644
index 0000000000..93218dff2e
--- /dev/null
+++ b/libao2/ao_sun.c
@@ -0,0 +1,223 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/audioio.h>
+#ifdef	__svr4__
+#include <stropts.h>
+#endif
+
+#include "../config.h"
+
+#include "audio_out.h"
+#include "audio_out_internal.h"
+
+static ao_info_t info = 
+{
+	"Sun audio output",
+	"sun",
+	"jk@tools.de",
+	""
+};
+
+LIBAO_EXTERN(sun)
+
+
+#ifndef	AUDIO_PRECISION_8
+#define AUDIO_PRECISION_8  8
+#define AUDIO_PRECISION_16 16
+#endif
+
+
+// there are some globals:
+// ao_samplerate
+// ao_channels
+// ao_format
+// ao_bps
+// ao_outburst
+// ao_buffersize
+
+static char *dsp="/dev/audio";
+static int queued_bursts = 0;
+static int audio_fd=-1;
+
+// to set/get/query special features/parameters
+static int control(int cmd,int arg){
+    switch(cmd){
+	case AOCONTROL_SET_DEVICE:
+	    dsp=(char*)arg;
+	    return CONTROL_OK;
+	case AOCONTROL_QUERY_FORMAT:
+	    return CONTROL_TRUE;
+    }
+    return CONTROL_UNKNOWN;
+}
+
+// open & setup audio device
+// return: 1=success 0=fail
+static int init(int rate,int channels,int format,int flags){
+
+  audio_info_t info;
+  int byte_per_sec;
+
+  printf("ao2: %d Hz  %d chans  0x%X\n",rate,channels,format);
+
+  audio_fd=open(dsp, O_WRONLY);
+  if(audio_fd<0){
+    printf("Can't open audio device %s  -> nosound\n",dsp);
+    return 0;
+  }
+
+  ioctl(audio_fd, AUDIO_DRAIN, 0);
+
+  AUDIO_INITINFO(&info);
+  info.play.encoding = ao_format = format;
+  info.play.precision = (format==AUDIO_ENCODING_LINEAR? AUDIO_PRECISION_16:AUDIO_PRECISION_8);
+  info.play.channels = ao_channels = channels;
+  --ao_channels;
+  info.play.sample_rate = ao_samplerate = rate;
+  info.play.samples = 0;
+  info.play.eof = 0;
+  if(ioctl (audio_fd, AUDIO_SETINFO, &info)<0)
+    printf("audio_setup: your card doesn't support %d Hz samplerate\n",rate);
+  byte_per_sec = (channels
+		  * (format==AUDIO_ENCODING_LINEAR ? 16 : 8)
+		  * rate);
+  ao_outburst=byte_per_sec > 100000 ? 16384 : 8192;
+  queued_bursts = 0;
+
+  if(ao_buffersize==-1){
+    // Measuring buffer size:
+    void* data;
+    ao_buffersize=0;
+#ifdef HAVE_AUDIO_SELECT
+    data=malloc(ao_outburst); memset(data,0,ao_outburst);
+    while(ao_buffersize<0x40000){
+      fd_set rfds;
+      struct timeval tv;
+      FD_ZERO(&rfds); FD_SET(audio_fd,&rfds);
+      tv.tv_sec=0; tv.tv_usec = 0;
+      if(!select(audio_fd+1, NULL, &rfds, NULL, &tv)) break;
+      write(audio_fd,data,ao_outburst);
+      ao_buffersize+=ao_outburst;
+    }
+    free(data);
+    if(ao_buffersize==0){
+        printf("\n   ***  Your audio driver DOES NOT support select()  ***\n");
+          printf("Recompile mplayer with #undef HAVE_AUDIO_SELECT in config.h !\n\n");
+        return 0;
+    }
+#ifdef	__svr4__
+    ioctl(audio_fd, I_FLUSH, FLUSHW);
+#endif
+    ioctl(audio_fd, AUDIO_DRAIN, 0);
+#endif
+  }
+
+    return 1;
+}
+
+// close audio device
+static void uninit(){
+    close(audio_fd);
+}
+
+// stop playing and empty buffers (for seeking/pause)
+static void reset(){
+    audio_info_t info;
+
+#ifdef	__svr4__
+    ioctl(audio_fd, I_FLUSH, FLUSHW);
+#endif
+    uninit();
+    audio_fd=open(dsp, O_WRONLY);
+    if(audio_fd<0){
+	printf("\nFatal error: *** CANNOT RE-OPEN / RESET AUDIO DEVICE ***\n");
+	return;
+    }
+
+    ioctl(audio_fd, AUDIO_DRAIN, 0);
+
+    AUDIO_INITINFO(&info);
+    info.play.encoding = ao_format;
+    info.play.precision = (ao_format==AUDIO_ENCODING_LINEAR? AUDIO_PRECISION_16:AUDIO_PRECISION_8);
+    info.play.channels = ao_channels+1;
+    info.play.sample_rate = ao_samplerate;
+    info.play.samples = 0;
+    info.play.eof = 0;
+    ioctl (audio_fd, AUDIO_SETINFO, &info);
+    queued_bursts = 0;
+}
+
+// stop playing, keep buffers (for pause)
+static void audio_pause()
+{
+    struct audio_info info;
+    AUDIO_INITINFO(&info);
+    info.play.pause = 1;
+    ioctl(audio_fd, AUDIO_SETINFO, &info);
+}
+
+// resume playing, after audio_pause()
+static void audio_resume()
+{
+    struct audio_info info;
+    AUDIO_INITINFO(&info);
+    info.play.pause = 0;
+    ioctl(audio_fd, AUDIO_SETINFO, &info);
+}
+
+
+// return: how many bytes can be played without blocking
+static int get_space(){
+  int playsize=ao_outburst;
+
+    // check buffer
+#ifdef HAVE_AUDIO_SELECT
+    {  fd_set rfds;
+       struct timeval tv;
+       FD_ZERO(&rfds);
+       FD_SET(audio_fd, &rfds);
+       tv.tv_sec = 0;
+       tv.tv_usec = 0;
+       if(!select(audio_fd+1, NULL, &rfds, NULL, &tv)) return 0; // not block!
+    }
+#endif
+
+  {
+    audio_info_t info;
+    ioctl(audio_fd, AUDIO_GETINFO, &info);
+    if(queued_bursts - info.play.eof > 2)
+      return 0;
+  }
+  return ao_outburst;
+}
+
+// plays 'len' bytes of 'data'
+// it should round it down to outburst*n
+// return: number of bytes played
+static int play(void* data,int len,int flags){
+    len/=ao_outburst;
+    len=write(audio_fd,data,len*ao_outburst);
+    if(len>0) {
+      queued_bursts ++;
+      write(audio_fd,data,0);
+    }
+    return len;
+}
+
+static int audio_delay_method=2;
+
+// return: how many unplayed bytes are in the buffer
+static int get_delay(){
+    int q;
+    audio_info_t info;
+    ioctl(audio_fd, AUDIO_GETINFO, &info);
+    return (queued_bursts - info.play.eof) * ao_outburst;
+}
+