diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c
index 6d4ee549cb..4b68bce371 100644
--- a/libavcodec/pthread.c
+++ b/libavcodec/pthread.c
@@ -55,7 +55,7 @@ typedef struct ThreadContext {
 } ThreadContext;
 
 /// Max number of frame buffers that can be allocated when using frame threads.
-#define MAX_BUFFERS 32
+#define MAX_BUFFERS 33
 
 /**
  * Context used by codec threads and stored in their AVCodecContext thread_opaque.
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 95f41f315a..1c61e68910 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -115,7 +115,7 @@ typedef struct InternalBuffer{
     enum PixelFormat pix_fmt;
 }InternalBuffer;
 
-#define INTERNAL_BUFFER_SIZE 32
+#define INTERNAL_BUFFER_SIZE 33
 
 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[4]){
     int w_align= 1;
diff --git a/mt-work/todo.txt b/mt-work/todo.txt
index 678d213d8c..861013da87 100644
--- a/mt-work/todo.txt
+++ b/mt-work/todo.txt
@@ -23,8 +23,9 @@ field pictures in the same packet are not optimal. Modify the
 nals_needed check so that the second field's first slice is
 considered as needed, then uncomment the FIXME code in decode_postinit.
 Ex: http://astrange.ithinksw.net/ffmpeg/mt-samples/PAFF-Chalet-Tire.mp4
-- The conformance sample MR3_TANDBERG_B.264 has problems (allocated picture overflow).
-- One 10-bit sample has problems.
+- The code added to shorten frame gaps (to avoid allocating more than 16 new frames)
+appears to be wrong by inspection. It does not handle prev_frame_num > frame_num,
+and "h->frame_num - h->sps.ref_frame_count - 1" should be "h->frame_num - h->sps.ref_frame_count".
 
 mpeg4:
 - Packed B-frames need to be explicitly split up