Merging branch 'ffmpeg-mt/master'

Just some cosmetics & comments, the only functional change
"error_resilience: use s->last_picture for accessing last MVs."
Is so buggy that it needs a full rewrite, guess -1.0 PSNR loss wasnt
enough for ronald to realize there was a problem.

libavcodec/error_resilience.c

@@ -663,6 +663,7 @@ static int is_intra_more_likely(MpegEncContext *s){
                 uint8_t *last_mb_ptr= s->last_picture.data   [0] + mb_x*16 + mb_y*16*s->linesize;
 
                 is_intra_likely += s->dsp.sad[0](NULL, last_mb_ptr, mb_ptr                    , s->linesize, 16);
+                // FIXME need await_progress() here
                 is_intra_likely -= s->dsp.sad[0](NULL, last_mb_ptr, last_mb_ptr+s->linesize*16, s->linesize, 16);
             }else{
                 if(IS_INTRA(s->current_picture.mb_type[mb_xy]))
@@ -1000,6 +1001,7 @@ void ff_er_frame_end(MpegEncContext *s){
                     int time_pp= s->pp_time;
                     int time_pb= s->pb_time;
 
+                    // FIXME await_progress here
                     s->mv[0][0][0] = s->next_picture.motion_val[0][xy][0]*time_pb/time_pp;
                     s->mv[0][0][1] = s->next_picture.motion_val[0][xy][1]*time_pb/time_pp;
                     s->mv[1][0][0] = s->next_picture.motion_val[0][xy][0]*(time_pb - time_pp)/time_pp;

libavcodec/mpegvideo.c

@@ -680,6 +680,7 @@ av_cold int MPV_common_init(MpegEncContext *s)
             FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_offset, 2 * 64 * sizeof(uint16_t), fail)
         }
     }
+
     s->picture_count = MAX_PICTURE_COUNT * FFMAX(1, s->avctx->thread_count);
     FF_ALLOCZ_OR_GOTO(s->avctx, s->picture, s->picture_count * sizeof(Picture), fail)
     for(i = 0; i < s->picture_count; i++) {
@@ -754,7 +755,7 @@ av_cold int MPV_common_init(MpegEncContext *s)
 
         for(i=0; i<threads; i++){
             if(init_duplicate_context(s->thread_context[i], s) < 0)
-               goto fail;
+                goto fail;
             s->thread_context[i]->start_mb_y= (s->mb_height*(i  ) + s->avctx->thread_count/2) / s->avctx->thread_count;
             s->thread_context[i]->end_mb_y  = (s->mb_height*(i+1) + s->avctx->thread_count/2) / s->avctx->thread_count;
         }