10l (printing qscale before parsing it)

Originally committed as revision 2608 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/mpeg12.c

@@ -2073,17 +2073,6 @@ static int mpeg_decode_slice(AVCodecContext *avctx,
         }         
 
         *s->current_picture_ptr->pan_scan= s1->pan_scan;
-
-        //printf("%d\n", s->current_picture_ptr->repeat_pict);
-
-        if(s->avctx->debug&FF_DEBUG_PICT_INFO){
-             av_log(s->avctx, AV_LOG_DEBUG, "qp:%d fc:%2d%2d%2d%2d %s %s %s %s dc:%d pstruct:%d fdct:%d cmv:%d qtype:%d ivlc:%d rff:%d %s\n", 
-                 s->qscale, s->mpeg_f_code[0][0],s->mpeg_f_code[0][1],s->mpeg_f_code[1][0],s->mpeg_f_code[1][1],
-                 s->pict_type == I_TYPE ? "I" : (s->pict_type == P_TYPE ? "P" : (s->pict_type == B_TYPE ? "B" : "S")), 
-                 s->progressive_sequence ? "pro" :"", s->alternate_scan ? "alt" :"", s->top_field_first ? "top" :"", 
-                 s->intra_dc_precision, s->picture_structure, s->frame_pred_frame_dct, s->concealment_motion_vectors,
-                 s->q_scale_type, s->intra_vlc_format, s->repeat_first_field, s->chroma_420_type ? "420" :"");
-        }
       }else{ //second field
             int i;
             
@@ -2106,11 +2095,22 @@ static int mpeg_decode_slice(AVCodecContext *avctx,
          XVMC_field_start(s,avctx);
 #endif
     }//fi(s->first_slice)
-    s->first_slice = 0;
 
     init_get_bits(&s->gb, *buf, buf_size*8);
 
     s->qscale = get_qscale(s);
+    if (s->first_slice && (s->first_field || s->picture_structure==PICT_FRAME)) {
+        if(s->avctx->debug&FF_DEBUG_PICT_INFO){
+             av_log(s->avctx, AV_LOG_DEBUG, "qp:%d fc:%2d%2d%2d%2d %s %s %s %s dc:%d pstruct:%d fdct:%d cmv:%d qtype:%d ivlc:%d rff:%d %s\n", 
+                 s->qscale, s->mpeg_f_code[0][0],s->mpeg_f_code[0][1],s->mpeg_f_code[1][0],s->mpeg_f_code[1][1],
+                 s->pict_type == I_TYPE ? "I" : (s->pict_type == P_TYPE ? "P" : (s->pict_type == B_TYPE ? "B" : "S")), 
+                 s->progressive_sequence ? "pro" :"", s->alternate_scan ? "alt" :"", s->top_field_first ? "top" :"", 
+                 s->intra_dc_precision, s->picture_structure, s->frame_pred_frame_dct, s->concealment_motion_vectors,
+                 s->q_scale_type, s->intra_vlc_format, s->repeat_first_field, s->chroma_420_type ? "420" :"");
+        }
+    }
+
+    s->first_slice = 0;
     if(s->qscale == 0){
         av_log(s->avctx, AV_LOG_ERROR, "qscale == 0\n");
         return -1;