Changeset 2213:7a2733bb4ae8 in roaraudio

Timestamp:

07/27/09 19:19:33 (15 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

got it working!

File:

• roard/driver_sysclock.c (modified) (3 diffs)

roard/driver_sysclock.c

@@ -43 +43 @@
  inst->write = driver_sysclock_write;
 
- self->bsp   = (info->bits / 8) * info->channels * info->rate;
+ self->bps   = (info->bits / 8) * info->channels * info->rate;
 
- if (!self->bsp) {
+ if (!self->bps) {
   free(self);
   return -1;
@@ -61 +61 @@
   case ROAR_CODEC_MULAW:
     // one byte per sample
-    self->bsp *= 8;
-    self->bsp /= info->bits;
+    self->bps *= 8;
+    self->bps /= info->bits;
    break;
   default:
@@ -88 +88 @@
 ssize_t driver_sysclock_write   (struct roar_vio_calls * vio, void *buf, size_t count) {
  struct driver_sysclock * self = vio->inst;
- return -1;
+ struct timeval now;
+ unsigned long long diff = (1000000 * count / self->bps);
+ unsigned long long ago;
+
+ gettimeofday(&now, NULL);
+
+ ago  = now.tv_usec - self->lasttime.tv_usec;
+ ago += 1000000*(now.tv_sec - self->lasttime.tv_sec);
+
+ memcpy(&(self->lasttime), &now, sizeof(now));
+
+ ROAR_DBG("driver_sysclock_write(*): count=%u, bps=%u, diff=%llu, ago=%llu", count, self->bps, diff, ago);
+
+ if ( diff <= ago )
+  return count;
+
+ diff -= ago;
+
+ usleep(diff);
+
+ return count;
 }