Encode from Frame A to Frame B

Index: libhb/reader.c===================================================================--- libhb/reader.c	(revision 1346)+++ libhb/reader.c	(working copy)@@ -304,6 +304,14 @@      if( id == 0xE0 )     {+        if( (job->current_frame < job->start_frame)  )+        {+            /* Skip video frames until the requested start,+               but keep track of how many have been skipped. */+            job->current_frame++;+            return NULL;+        }+         if( job->indepth_scan )         {             /*@@ -318,6 +326,13 @@             return fifos;         }     }+    +    if( (job->current_frame < job->start_frame)  )+    {+        /* Skip audio and subtitle samples until+           the requested video start frame is reached. */+        return NULL;+    }      if( job->indepth_scan ) {         /*Index: libhb/sync.c===================================================================--- libhb/sync.c	(revision 1346)+++ libhb/sync.c	(working copy)@@ -270,6 +270,22 @@         return HB_WORK_DONE;     } +    if(pv->count_frames > job->end_frame)+    {+        /* If we've reached the requested last frame, end early. */+        hb_log("Hit %i frames, ending early.", job->end_frame);+        +        pv->done = 1;++        // Drop an empty buffer into our output to ensure that things+        // get flushed all the way out.+        hb_buffer_t * buf_tmp;+        buf_tmp = hb_buffer_init(0); // Empty end buffer+        hb_fifo_push( job->fifo_sync, buf_tmp );+        +        return HB_WORK_DONE;+    }+         if( hb_thread_has_exited( job->reader ) &&         !hb_fifo_size( job->fifo_mpeg2 ) &&         !hb_fifo_size( job->fifo_raw ) )@@ -310,7 +326,7 @@         {             /* This is our first frame */             pv->pts_offset = 0;-            if ( cur->start != 0 )+            if ( (cur->start != 0 && job->start_frame == 0) || (job->start_frame == job->current_frame) )             {                 /*                  * The first pts from a dvd should always be zero butIndex: libhb/work.c===================================================================--- libhb/work.c	(revision 1346)+++ libhb/work.c	(working copy)@@ -122,6 +122,11 @@     hb_log( " + device %s", title->dvd );     hb_log( " + title %d, chapter(s) %d to %d", title->index,             job->chapter_start, job->chapter_end );+            +        job->start_frame = 10040;+        job->end_frame = 500;+        job->current_frame = 0;+             if ( job->pixel_ratio == 1 )     {     	/* Correct the geometry of the output movie when using PixelRatio */Index: libhb/common.h===================================================================--- libhb/common.h	(revision 1346)+++ libhb/common.h	(working copy)@@ -275,6 +275,10 @@     int subtitle_force;     char * native_language; +    int             start_frame;+    int             end_frame;+    int             current_frame;+     #ifdef __LIBHB__     /* Internal data */     hb_handle_t   * h;