added worker thread sleep throttling.

each of the work object threads now self adjust their sleep interval based on the "fullness" of their fifo.
80% is the choose threshold.  
Work objects with a fifo fullness of greater than 80% increase their sleep interval.
This allows other work object with less than 80% fullness more CPU usage.
Also adjusted thread_func, reader, and muxer sleep intervals to more reasonable values.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@98 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 11 insertions, 0 deletions

diff --git a/libhb/fifo.c b/libhb/fifo.c
index acdb21188..93e3e162e 100644
--- a/libhb/fifo.c
+++ b/libhb/fifo.c
@@ -101,6 +101,17 @@ int hb_fifo_is_full( hb_fifo_t * f )
     return ret;
 }
 
+float hb_fifo_percent_full( hb_fifo_t * f )
+{
+    float ret;
+
+    hb_lock( f->lock );
+    ret = f->size / f->capacity;
+    hb_unlock( f->lock );
+
+    return ret;
+}
+
 hb_buffer_t * hb_fifo_get( hb_fifo_t * f )
 {
     hb_buffer_t * b;