From 2d5e962b06bbdb6b2f1252435020e569189839d1 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Tue, 26 Aug 2003 22:26:18 +0000
Subject: [PATCH] 100l (forget to reset me.skip for b frames)

Originally committed as revision 2170 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/motion_est.c       | 14 +++++++++++---
 tests/rotozoom.regression.ref | 12 ++++++------
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
index 17a5b1f79c..a533b1bf95 100644
--- a/libavcodec/motion_est.c
+++ b/libavcodec/motion_est.c
@@ -28,6 +28,7 @@
  
 #include <stdlib.h>
 #include <stdio.h>
+#include <limits.h>
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
@@ -1494,20 +1495,27 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
     int fmin, bmin, dmin, fbmin;
     int type=0;
     
-    dmin= direct_search(s, mb_x, mb_y);
+    s->me.skip=0;
+    if (s->codec_id == CODEC_ID_MPEG4)
+        dmin= direct_search(s, mb_x, mb_y);
+    else
+        dmin= INT_MAX;
 
+    s->me.skip=0;
     fmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, &s->last_picture, s->f_code) + 3*penalty_factor;
+    
+    s->me.skip=0;
     bmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, &s->next_picture, s->b_code) + 2*penalty_factor;
 //printf(" %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
 
+    s->me.skip=0;
     fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;
 //printf("%d %d %d %d\n", dmin, fmin, bmin, fbmin);
     {
         int score= fmin;
         type = MB_TYPE_FORWARD;
         
-        // RAL: No MB_TYPE_DIRECT in MPEG-1 video (only MPEG-4)
-        if (s->codec_id == CODEC_ID_MPEG4 && dmin <= score){
+        if (dmin <= score){
             score = dmin;
             type = MB_TYPE_DIRECT;
         }
diff --git a/tests/rotozoom.regression.ref b/tests/rotozoom.regression.ref
index 4d38d0e932..076009cb0a 100644
--- a/tests/rotozoom.regression.ref
+++ b/tests/rotozoom.regression.ref
@@ -29,15 +29,15 @@ stddev:  5.28 bytes:7602176
 242a7a18c2793e115007bc163861ef4e *./data/a-huffyuv.avi
 dde5895817ad9d219f79a52d0bdfb001 *./data/out.yuv
 stddev:  0.00 bytes:7602176
-2a9ee5a50073e3c5c25653f83d2b78ae *./data/a-mpeg4-rc.avi
-6851f0023a361b2b088d115f6d42d03e *./data/out.yuv
-stddev:  5.12 bytes:7145472
+794463e80f8de682591e13b82510f967 *./data/a-mpeg4-rc.avi
+25f3d554edf174034b5e484a7cfb04d3 *./data/out.yuv
+stddev:  4.32 bytes:7145472
 aeb300900461bdf9e0321934aa6dcc93 *./data/a-mpeg4-adv.avi
 e465df12f2c8a6492a6ec0b1bddc1d0d *./data/out.yuv
 stddev:  4.97 bytes:7602176
-2ec827a941ee8e82911280405987f8ef *./data/a-mpeg1b.mpg
-2935a090a88c74ccb220c18c1399cea7 *./data/out.yuv
-stddev:  4.69 bytes:6993920
+a7ab3fba8d7cd004b4809b5fe04e37d0 *./data/a-mpeg1b.mpg
+c9b8f923d91d6a574b0673e05fd2d6bd *./data/out.yuv
+stddev:  4.61 bytes:6993920
 e9218a1db885fe0262e88f9df630307d *./data/a-mjpeg.avi
 a365b4da246ad68caf96b702b7f961a1 *./data/out.yuv
 stddev:  4.76 bytes:7602176