Index: encoder/encoder.c
===================================================================
--- encoder/encoder.c	(revision 650)
+++ encoder/encoder.c	(working copy)
@@ -61,6 +61,8 @@
 
 #define NALU_OVERHEAD 5 // startcode + NAL type costs 5 bytes per frame
 
+#define dbg_printf(id) fprintf(stderr, "[%p] f=%d t=%"PRId64 id, h, h->fdec->i_frame, x264_mdate());
+
 static void x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
                                     x264_nal_t **pp_nal, int *pi_nal,
                                     x264_picture_t *pic_out );
@@ -1215,6 +1217,8 @@
 {
     int i_frame_size;
 
+    dbg_printf(" slice_start\n");
+
 #if VISUALIZE
     if( h->param.b_visualize )
         x264_visualize_init( h );
@@ -1232,6 +1236,8 @@
     }
 #endif
 
+    dbg_printf(" slice_stop\n");
+
     h->out.i_frame_size = i_frame_size;
     return 0;
 }
@@ -1294,6 +1300,9 @@
         /* 1: Copy the picture to a frame and move it to a buffer */
         x264_frame_t *fenc = x264_frame_pop_unused( h );
 
+        h->fdec->i_frame = h->frames.i_input;
+        dbg_printf(" encode_start\n");
+
         x264_frame_copy_picture( h, fenc, pic_in );
 
         if( h->param.i_width != 16 * h->sps->i_mb_width ||
@@ -1316,6 +1325,8 @@
         }
     }
 
+    dbg_printf(" prolog_cp\n");
+
     if( h->frames.current[0] == NULL )
     {
         int bframes = 0;
@@ -1345,6 +1356,8 @@
     }
     TIMER_STOP( i_mtime_encode_frame );
 
+    dbg_printf(" prolog_rc\n");
+
     /* ------------------- Get frame to be encoded ------------------------- */
     /* 4: get picture to encode */
     h->fenc = x264_frame_shift( h->frames.current );
@@ -1477,6 +1490,8 @@
         x264_nal_end( h );
     }
 
+    dbg_printf(" thread_create\n");
+
     /* Write frame */
     if( h->param.i_threads > 1 )
     {
@@ -1600,8 +1615,10 @@
 
     if( h->b_thread_active )
     {
+        dbg_printf(" join?\n");
         pthread_join( h->thread_handle, NULL );
         h->b_thread_active = 0;
+        dbg_printf(" join.\n");
     }
     if( !h->out.i_nal )
     {
@@ -1758,6 +1775,8 @@
     /* Dump reconstructed frame */
     x264_frame_dump( h, h->fdec, "fdec.yuv" );
 #endif
+
+    dbg_printf(" encode_stop\n");
 }
 
 /****************************************************************************