decsrt: fix p-to-p start time after seeking

Reader can skip data at the beginning of the file.  We were not
informing decsrt how much was skipped when pts_to_start caused the skip.

Fixes https://forum.handbrake.fr/viewtopic.php?f=11&t=36258

1 files changed, 7 insertions, 0 deletions

diff --git a/libhb/work.c b/libhb/work.c
index 1358bc12e..9062111e5 100644
--- a/libhb/work.c
+++ b/libhb/work.c
@@ -1927,6 +1927,13 @@ void hb_work_loop( void * _w )
                 }
             }
         }
+        else if (w->fifo_in == NULL)
+        {
+            // If this work object is a generator (no input fifo) and it
+            // generated no output, it may be waiting for status from
+            // another thread. Yield so that we don't spin doing nothing.
+            hb_yield();
+        }
     }
     if ( buf_out )
     {