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Index: libhb/hb.c===================================================================--- libhb/hb.c	(revision 1033)+++ libhb/hb.c	(working copy)@@ -696,7 +696,7 @@  * @param h Handle to hb_handle_t.  * @param job Handle to hb_job_t.  */-void hb_add( hb_handle_t * h, hb_job_t * job )+const hb_job_t * hb_add( hb_handle_t * h, hb_job_t * job ) {     hb_job_t      * job_copy;     hb_title_t    * title,    * title_copy;@@ -923,6 +923,10 @@     hb_list_add( h->jobs, job_copy );     h->job_count = hb_count(h);     h->job_count_permanent++;++    hb_job_reference( job_copy );++    return( job_copy ); }  /**@@ -939,6 +943,7 @@         h->job_count_permanent--;      /* XXX free everything XXX */+    hb_job_dereference( job ); }  /**@@ -1207,3 +1212,27 @@     hb_unlock( h->state_lock );     hb_unlock( h->pause_lock ); }++/*+ * Register an interest in referencing this job, it won't be deleted+ * until this party deregisters its interest in it.+ */+void hb_job_reference( const hb_job_t * job_copy )+{+    hb_job_t * job = (hb_job_t * )job_copy;++    job->reference_count++;+}++void hb_job_dereference( const hb_job_t * job_copy )+{+    hb_job_t * job = (hb_job_t * )job_copy;++    job->reference_count--;++    if( job->reference_count <= 0 )+    {+        hb_log( "Freeing job 0x%x", job );+        free( job );+    }+}Index: libhb/hb.h===================================================================--- libhb/hb.h	(revision 1033)+++ libhb/hb.h	(working copy)@@ -84,7 +84,7 @@ int           hb_count( hb_handle_t * ); hb_job_t *    hb_job( hb_handle_t *, int ); hb_job_t *    hb_current_job( hb_handle_t * h );-void          hb_add( hb_handle_t *, hb_job_t * );+const hb_job_t * hb_add( hb_handle_t *, hb_job_t * ); void          hb_rem( hb_handle_t *, hb_job_t * );  void          hb_start( hb_handle_t * );@@ -105,6 +105,9 @@    Aborts all current jobs if any, frees memory. */ void          hb_close( hb_handle_t ** ); +void hb_job_reference( const hb_job_t * job_copy );+void hb_job_dereference( const hb_job_t * job_copy );+ #ifdef __cplusplus } #endifIndex: libhb/work.c===================================================================--- libhb/work.c	(revision 1033)+++ libhb/work.c	(working copy)@@ -703,7 +703,7 @@     hb_buffer_pool_free();      hb_title_close( &job->title );-    free( job );+    hb_job_dereference( job ); }  /**Index: libhb/common.h===================================================================--- libhb/common.h	(revision 1033)+++ libhb/common.h	(working copy)@@ -105,6 +105,12 @@  *****************************************************************************/ struct hb_job_s {+    /*+     * Number of folks interested in this job, only free when equal to+     * 0.+     */+    int reference_count;+     /* ID assigned by UI so it can groups job passes together */     int             sequence_id; 	Index: macosx/Controller.mm===================================================================--- macosx/Controller.mm	(revision 1033)+++ macosx/Controller.mm	(working copy)@@ -1557,6 +1586,7 @@     hb_list_t  * list  = hb_get_titles( fHandle );     hb_title_t * title = (hb_title_t *) hb_list_item( list, [fSrcTitlePopUp indexOfSelectedItem] );     hb_job_t * job = title->job;+    const hb_job_t * addedJob;    // job returned by hb_add      // Assign a sequence number, starting at zero, to each job added so they can     // be lumped together in the UI.@@ -1598,8 +1628,9 @@         * Add the pre-scan job         */         job->sequence_id++; // for job grouping-        hb_add( fHandle, job );-+        addedJob = hb_add( fHandle, job );+        hb_job_reference (addedJob);    // keep a reference for the queue+                 job->x264opts = x264opts_tmp;     }     else@@ -1623,7 +1654,8 @@                  job->pass = 1;         job->sequence_id++; // for job grouping-        hb_add( fHandle, job );+        addedJob = hb_add( fHandle, job );+        hb_job_reference (addedJob);    // keep a reference for the queue          job->pass = 2;         job->sequence_id++; // for job grouping@@ -1633,14 +1665,16 @@          job->select_subtitle = subtitle_tmp; -        hb_add( fHandle, job );+        addedJob = hb_add( fHandle, job );+        hb_job_reference (addedJob);    // keep a reference for the queue     }     else     {         job->indepth_scan = 0;         job->pass = 0;         job->sequence_id++; // for job grouping-        hb_add( fHandle, job );+        addedJob = hb_add( fHandle, job );+        hb_job_reference (addedJob);    // keep a reference for the queue     } 	     NSString *destinationDirectory = [[fDstFile2Field stringValue] stringByDeletingLastPathComponent];Index: macosx/HBQueueController.mm===================================================================--- macosx/HBQueueController.mm	(revision 1033)+++ macosx/HBQueueController.mm	(working copy)@@ -145,8 +148,12 @@         {             // Delete this job plus the following ones in the sequence             hb_rem( h, job );+            hb_job_dereference( job );             while( ( j = hb_job( h, index ) ) && (j->sequence_id != 0) )+            {                 hb_rem( h, j );+                hb_job_dereference( j );+            }             return;         }         else@@ -1163,7 +1182,9 @@     if (s->state == HB_STATE_WORKING)     {         NSString * msg;-        if (job->pass == -1)+        if (!job)+            msg = @"";  // no current job, even though state says working. Means there's a transition from one job to another going on.+        else if (job->pass == -1)             msg = NSLocalizedString( @"Deep Scan", nil );         else if (job->pass == 1)             msg = NSLocalizedString( @"Analyzing video", nil );