Use ff_sqrt() function instead of using a table

[ffmpeg] / libavcodec / motion_est.c

diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
index 9d1c26fe23714bf75c39076beef5a45b7ff87cfe..54bc93da38a5daf0b7ce2c42ffc44fb31799c6ca 100644 (file)
--- a/libavcodec/motion_est.c
+++ b/libavcodec/motion_est.c
@@ -3,6 +3,7 @@
  * Copyright (c) 2000,2001 Fabrice Bellard.
  * Copyright (c) 2002-2004 Michael Niedermayer
  *
+ * new motion estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
  *
@@ -19,8 +20,6 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * new Motion Estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>
  */
 
 /**
@@ -1807,7 +1806,7 @@ static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)
     P_LEFT[1]        = av_clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);
 
     /* special case for first line */
-    if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as its clipped
+    if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as it is clipped
         P_TOP[0]      = av_clip(mv_table[mot_xy - mot_stride             ][0], xmin<<shift, xmax<<shift);
         P_TOP[1]      = av_clip(mv_table[mot_xy - mot_stride             ][1], ymin<<shift, ymax<<shift);
         P_TOPRIGHT[0] = av_clip(mv_table[mot_xy - mot_stride + 1         ][0], xmin<<shift, xmax<<shift);
@@ -2027,7 +2026,7 @@ int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
                             continue;
 
                     for(j=0; j<fcode && j<8; j++){
-                        if(s->pict_type==B_TYPE || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
+                        if(s->pict_type==FF_B_TYPE || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
                             score[j]-= 170;
                     }
                 }
@@ -2059,7 +2058,7 @@ void ff_fix_long_p_mvs(MpegEncContext * s)
     MotionEstContext * const c= &s->me;
     const int f_code= s->f_code;
     int y, range;
-    assert(s->pict_type==P_TYPE);
+    assert(s->pict_type==FF_P_TYPE);
 
     range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);