PRED_LEFT          30 libavcodec/utvideo.c     PRED_LEFT, PRED_MEDIAN, PRED_MEDIAN, PRED_NONE, PRED_GRADIENT
PRED_LEFT         402 libavcodec/utvideodec.c                                c->frame_pred == PRED_LEFT);
PRED_LEFT         425 libavcodec/utvideodec.c                                plane_start[i], c->frame_pred == PRED_LEFT);
PRED_LEFT         446 libavcodec/utvideodec.c                                plane_start[i], c->frame_pred == PRED_LEFT);
PRED_LEFT         418 libavcodec/utvideoenc.c     case PRED_LEFT: