INTRA_FRAME       563 libavcodec/mss4.c     c->pic->key_frame = (frame_type == INTRA_FRAME);
INTRA_FRAME       564 libavcodec/mss4.c     c->pic->pict_type = (frame_type == INTRA_FRAME) ? AV_PICTURE_TYPE_I
INTRA_FRAME       609 libavcodec/mss4.c                 if (frame_type == INTRA_FRAME) {