diff --git a/doc/filters.texi b/doc/filters.texi
index f5740394e6..3b5e556eef 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -2801,6 +2801,13 @@ even frames, generating a frame with unchanged height at half framerate.
 @item 5
 Interleave the lower field from odd frames with the upper field from
 even frames, generating a frame with unchanged height at half framerate.
+
+@item 6
+Double frame rate with unchanged height. Frames are inserted each
+containing the second temporal field from the previous input frame and
+the first temporal field from the next input frame. This mode relies on
+the top_field_first flag. Useful for interlaced video displays with no
+field synchronisation.
 @end table
 
 Default mode is 0.
diff --git a/libavfilter/version.h b/libavfilter/version.h
index 0f7ea501e6..c79f37de73 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -30,7 +30,7 @@
 
 #define LIBAVFILTER_VERSION_MAJOR  2
 #define LIBAVFILTER_VERSION_MINOR 72
-#define LIBAVFILTER_VERSION_MICRO 100
+#define LIBAVFILTER_VERSION_MICRO 101
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \
diff --git a/libavfilter/vf_tinterlace.c b/libavfilter/vf_tinterlace.c
index 62e8d46d25..683aa0c551 100644
--- a/libavfilter/vf_tinterlace.c
+++ b/libavfilter/vf_tinterlace.c
@@ -68,9 +68,9 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
     if (args) {
         n = sscanf(args, "%d", &tinterlace->mode);
 
-        if (n != 1 || tinterlace->mode < 0 || tinterlace->mode > 5) {
+        if (n != 1 || tinterlace->mode < 0 || tinterlace->mode > 6) {
             av_log(ctx, AV_LOG_ERROR,
-                   "Invalid mode '%s', use an integer between 0 and 5\n", args);
+                   "Invalid mode '%s', use an integer between 0 and 6\n", args);
             return AVERROR(EINVAL);
         }
     }
@@ -253,6 +253,31 @@ static void end_frame(AVFilterLink *inlink)
                            tff ? FIELD_LOWER : FIELD_UPPER, 1, tff ? FIELD_LOWER : FIELD_UPPER);
         avfilter_unref_bufferp(&tinterlace->next);
         break;
+    case 6: /* re-interlace preserving image height, double frame rate */
+        /* output current frame first */
+        out = avfilter_ref_buffer(cur, AV_PERM_READ);
+
+        avfilter_start_frame(outlink, out);
+        avfilter_draw_slice(outlink, 0, outlink->h, 1);
+        avfilter_end_frame(outlink);
+
+        /* output mix of current and next frame */
+        tff = next->video->top_field_first;
+        out = avfilter_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
+        avfilter_copy_buffer_ref_props(out, next);
+        out->video->interlaced = 1;
+
+        /* write current frame second field lines into the second field of the new frame */
+        copy_picture_field(out->data, out->linesize,
+                           cur->data, cur->linesize,
+                           inlink->format, inlink->w, inlink->h,
+                           tff ? FIELD_LOWER : FIELD_UPPER, 1, tff ? FIELD_LOWER : FIELD_UPPER);
+        /* write next frame first field lines into the first field of the new frame */
+        copy_picture_field(out->data, out->linesize,
+                           next->data, next->linesize,
+                           inlink->format, inlink->w, inlink->h,
+                           tff ? FIELD_UPPER : FIELD_LOWER, 1, tff ? FIELD_UPPER : FIELD_LOWER);
+        break;
     }
 
     avfilter_start_frame(outlink, out);